Here's a complete solution for Swagger with Spring Security. We probably want to only enable Swagger in our development and QA environment and disable it in the production environment. So, I am using a property (prop.swagger.enabled
) as a flag to bypass spring security authentication for swagger-ui only in development/qa environment.
@Configuration
@EnableSwagger2
public class SwaggerConfiguration extends WebSecurityConfigurerAdapter implements WebMvcConfigurer {
@Value("${prop.swagger.enabled:false}")
private boolean enableSwagger;
@Bean
public Docket SwaggerConfig() {
return new Docket(DocumentationType.SWAGGER_2)
.enable(enableSwagger)
.select()
.apis(RequestHandlerSelectors.basePackage("com.your.controller"))
.paths(PathSelectors.any())
.build();
}
@Override
public void configure(WebSecurity web) throws Exception {
if (enableSwagger)
web.ignoring().antMatchers("/v2/api-docs",
"/configuration/ui",
"/swagger-resources/**",
"/configuration/security",
"/swagger-ui.html",
"/webjars/**");
}
@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
if (enableSwagger) {
registry.addResourceHandler("swagger-ui.html").addResourceLocations("classpath:/META-INF/resources/");
registry.addResourceHandler("/webjars/**").addResourceLocations("classpath:/META-INF/resources/webjars/");
}
}
}
Tracing helped me find what the problem was (Thank you Fabian for that suggestion). I found with further testing that I could get the client certificate to work on another server (Windows Server 2012). I was testing this on my development machine (Window 7) so I could debug this process. So by comparing the trace to an IIS Server that worked and one that did not I was able to pinpoint the relevant lines in the trace log. Here is a portion of a log where the client certificate worked. This is the setup right before the send
System.Net Information: 0 : [17444] InitializeSecurityContext(In-Buffers count=2, Out-Buffer length=0, returned code=CredentialsNeeded).
System.Net Information: 0 : [17444] SecureChannel#54718731 - We have user-provided certificates. The server has not specified any issuers, so try all the certificates.
System.Net Information: 0 : [17444] SecureChannel#54718731 - Selected certificate:
Here is what the trace log looked like on the machine where the client certificate failed.
System.Net Information: 0 : [19616] InitializeSecurityContext(In-Buffers count=2, Out-Buffer length=0, returned code=CredentialsNeeded).
System.Net Information: 0 : [19616] SecureChannel#54718731 - We have user-provided certificates. The server has specified 137 issuer(s). Looking for certificates that match any of the issuers.
System.Net Information: 0 : [19616] SecureChannel#54718731 - Left with 0 client certificates to choose from.
System.Net Information: 0 : [19616] Using the cached credential handle.
Focusing on the line that indicated the server specified 137 issuers I found this Q&A that seemed similar to my issue. The solution for me was not the one marked as an answer since my certificate was in the trusted root. The answer is the one under it where you update the registry. I just added the value to the registry key.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL
Value name: SendTrustedIssuerList Value type: REG_DWORD Value data: 0 (False)
After adding this value to the registry it started to work on my Windows 7 machine. This appears to be a Windows 7 issue.
Click on your project properties, go to the web section, from the Servers section, change from IIS express to Local IIS, it will create a virtual directory for you
Just as a follow up for anyone still running into this – I had added the ServicePointManager.SecurityProfile options as noted in the solution:
ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3 | SecurityProtocolType.Tls | SecurityProtocolType.Tls11 | SecurityProtocolType.Tls12;
And yet I continued to get the same “The request was aborted: Could not create SSL/TLS secure channel” error. I was attempting to connect to some older voice servers with HTTPS SOAP API interfaces (i.e. voice mail, IP phone systems etc… installed years ago). These only support SSL3 connections as they were last updated years ago.
One would think including SSl3 in the list of SecurityProtocols would do the trick here, but it didn’t. The only way I could force the connection was to include ONLY the Ssl3 protocol and no others:
ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3;
Then the connection goes through – seems like a bug to me but this didn’t start throwing errors until recently on tools I provide for these servers that have been out there for years – I believe Microsoft has started rolling out system changes that have updated this behavior to force TLS connections unless there is no other alternative.
Anyway – if you’re still running into this against some old sites/servers, it’s worth giving it a try.
Same 404 response I got after service executed with the below code
@Controller
@RequestMapping("/duecreate/v1.0")
public class DueCreateController {
}
Response:
{
"timestamp": 1529692263422,
"status": 404,
"error": "Not Found",
"message": "No message available",
"path": "/duecreate/v1.0/status"
}
after changing it to below code I received proper response
@RestController
@RequestMapping("/duecreate/v1.0")
public class DueCreateController {
}
Response:
{
"batchId": "DUE1529673844630",
"batchType": null,
"executionDate": null,
"status": "OPEN"
}
None of these answers really work. As others noted the Cors package will only use the Access-Control-Allow-Origin header if the request had an Origin header. But you can't generally just add an Origin header to the request because browsers may try to regulate that too.
If you want a quick and dirty way to allow cross site requests to a web api, it's really a lot easier to just write a custom filter attribute:
public class AllowCors : ActionFilterAttribute
{
public override void OnActionExecuted(HttpActionExecutedContext actionExecutedContext)
{
if (actionExecutedContext == null)
{
throw new ArgumentNullException("actionExecutedContext");
}
else
{
actionExecutedContext.Response.Headers.Remove("Access-Control-Allow-Origin");
actionExecutedContext.Response.Headers.Add("Access-Control-Allow-Origin", "*");
}
base.OnActionExecuted(actionExecutedContext);
}
}
Then just use it on your Controller action:
[AllowCors]
public IHttpActionResult Get()
{
return Ok("value");
}
I won't vouch for the security of this in general, but it's probably a lot safer than setting the headers in the web.config since this way you can apply them only as specifically as you need them.
And of course it is simple to modify the above to allow only certain origins, methods etc.
The way you are performing the injection of the property will not work, because the injection is done after the constructor is called.
You need to do one of the following:
Better solution
@Component
public class MyBean {
private final String prop;
@Autowired
public MyBean(@Value("${some.prop}") String prop) {
this.prop = prop;
System.out.println("================== " + prop + "================== ");
}
}
Solution that will work but is less testable and slightly less readable
@Component
public class MyBean {
@Value("${some.prop}")
private String prop;
public MyBean() {
}
@PostConstruct
public void init() {
System.out.println("================== " + prop + "================== ");
}
}
Also note that is not Spring Boot specific but applies to any Spring application
I face this problem but resolution is very simple. I am writing the 1 MB file in 1024 Byte Buffer causing this issue. To Understand refer code before and After Fix.
Code with Excepion
DataOutputStream dos = new DataOutputStream(s.getOutputStream());
FileInputStream fis = new FileInputStream(file);
byte[] buffer = new byte[1024];
while (fis.read(buffer) > 0) {
dos.write(buffer);
}
After Fixes:
DataOutputStream dos = new DataOutputStream(s.getOutputStream());
FileInputStream fis = new FileInputStream(file);
byte[] buffer = new byte[102400];
while (fis.read(buffer) > 0) {
dos.write(buffer);
}
Please check the class you inherited. Whether it is simply Controller or APIController.
By mistake we might create a controller from MVC 5 controller. It should be from Web API Controller.
If nothing happens even if you added all the annotation needed, try to add this dependency to your pom.xml
, I just faced the same problem and resolved it by adding this one here:
<dependency>
<groupId>commons-configuration</groupId>
<artifactId>commons-configuration</artifactId>
<version>1.9</version>
</dependency>
Configure another port number(eg:8181) in /src/main/resources/application.properties
server.port=8181
This happened to me on VS2013(Update 5)/ASP.NET 4.5, under project type "Web Application" that includes MVC and Web API 2. Error happened right after creating the project and before adding any code. Adding the following configuration fix it for me. After resolving "System.Web.Helpers" issue two more similar errors surfaced for "System.Web.Mvc" and "System.Web.WebPages".
<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<dependentAssembly>
<assemblyIdentity name="System.Web.Helpers" publicKeyToken="31bf3856ad364e35" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-2.0.0.0" newVersion="2.0.0.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-5.0.0.0" newVersion="5.2.3.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="System.Web.WebPages" publicKeyToken="31bf3856ad364e35" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-3.0.0.0" newVersion="3.0.0.0" />
</dependentAssembly>
Do the following in the App.config file,
connectionStrings
element is after the configSections
element.startup
element after the connectionStrings
element.<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=4.3.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
</configSections>
<connectionStrings>
<add name="SchedulingContext" connectionString="Data Source=XXX\SQL2008R2DEV;Initial Catalog=YYY;Persist Security Info=True;User ID=sa;Password=XXX" providerName="System.Data.SqlClient"/>
</connectionStrings>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5" />
</startup>
</configuration>
You may have not set the output file.
I know that it's an old question, but you can change the Response using a parameter (P):
public class Response<P> implements Serializable{
private static final long serialVersionUID = 1L;
public enum MessageCode {
SUCCESS, ERROR, UNKNOWN
}
private MessageCode code;
private String message;
private P payload;
...
public P getPayload() {
return payload;
}
public void setPayload(P payload) {
this.payload = payload;
}
}
The method would be
public Response<Departments> getDepartments(){...}
I can't try it now but it should works.
Otherwise it's possible to extends Response
@XmlRootElement
public class DepResponse extends Response<Department> {<no content>}
The broken pipe error usually occurs if your request is blocked or takes too long and after request-side timeout, it'll close the connection and then, when the respond-side (server) tries to write to the socket, it will throw a pipe broken error.
There are two reasons you might get this message:
%FrameworkDir%\%FrameworkVersion%\aspnet_regiis -i
. Read the message carefully. On Windows8/IIS8 it may say that this is no longer supported and you may have to use Turn Windows Features On/Off dialog in Install/Uninstall a Program in Control Panel.The 'u' in front of the string values means the string is a Unicode string. Unicode is a way to represent more characters than normal ASCII can manage. The fact that you're seeing the u
means you're on Python 2 - strings are Unicode by default on Python 3, but on Python 2, the u
in front distinguishes Unicode strings. The rest of this answer will focus on Python 2.
You can create a Unicode string multiple ways:
>>> u'foo'
u'foo'
>>> unicode('foo') # Python 2 only
u'foo'
But the real reason is to represent something like this (translation here):
>>> val = u'???????????? ? ?????????????'
>>> val
u'\u041e\u0437\u043d\u0430\u043a\u043e\u043c\u044c\u0442\u0435\u0441\u044c \u0441 \u0434\u043e\u043a\u0443\u043c\u0435\u043d\u0442\u0430\u0446\u0438\u0435\u0439'
>>> print val
???????????? ? ?????????????
For the most part, Unicode and non-Unicode strings are interoperable on Python 2.
There are other symbols you will see, such as the "raw" symbol r
for telling a string not to interpret backslashes. This is extremely useful for writing regular expressions.
>>> 'foo\"'
'foo"'
>>> r'foo\"'
'foo\\"'
Unicode and non-Unicode strings can be equal on Python 2:
>>> bird1 = unicode('unladen swallow')
>>> bird2 = 'unladen swallow'
>>> bird1 == bird2
True
but not on Python 3:
>>> x = u'asdf' # Python 3
>>> y = b'asdf' # b indicates bytestring
>>> x == y
False
I have same problem but in my case By mistake I added a context in server.xml ($Tomcat_Install_Dir/conf/) and doesn't deployed corresponing war in webapps($Tomcat_Install_Dir/webapps). As I removed that context and restarted tomcat it working fine.
It looks like your Spring component scan Base is missing UserServiceImpl
<context:component-scan base-package="org.assessme.com.controller." />
What could be the possible cause of this exception?
You may not have appropriate Jar in your class path.
How it could be removed?
By putting HTTPClient jar in your class path. If it's a webapp, copy Jar into WEB-INF/lib
if it's standalone, make sure you have this jar in class path or explicitly set using -cp
option
as the doc says,
Thrown if the Java Virtual Machine or a ClassLoader instance tries to load in the definition of a class (as part of a normal method call or as part of creating a new instance using the new expression) and no definition of the class could be found.
The searched-for class definition existed when the currently executing class was compiled, but the definition can no longer be found.
Edit:
If you are using a dependency management like Maven/Gradle (see the answer below) or SBT please use it to bring the httpclient jar for you.
if your tmp folder is relative to the directory where your code is running remove the /
in front of /tmp
.
So you just have tmp/test.jpg
in your code. This worked for me in a similar situation.
I had a similar problem and after going over a lot on stack overflow and spending time on the jar dependencies, I figured out that in my case, I had two sets of asm.jar. I removed one of them and it worked fine...
This is how I got rid of the error:
WebDriverException: Error forwarding the new session cannot find : {platform=WINDOWS, ensureCleanSession=true, browserName=internet explorer, version=11}
In your nodeconfig.json, the version must be a String, not an integer.
So instead of using "version": 11
use "version": "11"
(note the double quotes).
A full example of a working nodecondig.json file for a RemoteWebDriver:
{
"capabilities":
[
{
"platform": "WIN8_1",
"browserName": "internet explorer",
"maxInstances": 1,
"seleniumProtocol": "WebDriver"
"version": "11"
}
,{
"platform": "WIN7",
"browserName": "chrome",
"maxInstances": 4,
"seleniumProtocol": "WebDriver"
"version": "40"
}
,{
"platform": "LINUX",
"browserName": "firefox",
"maxInstances": 4,
"seleniumProtocol": "WebDriver"
"version": "33"
}
],
"configuration":
{
"proxy": "org.openqa.grid.selenium.proxy.DefaultRemoteProxy",
"maxSession": 3,
"port": 5555,
"host": ip,
"register": true,
"registerCycle": 5000,
"hubPort": 4444,
"hubHost": {your-ip-address}
}
}
And if you need authorized user in templates (e.g. JSP) use
<%@ taglib prefix="sec" uri="http://www.springframework.org/security/tags" %>
<sec:authentication property="principal.yourCustomField"/>
together with
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-taglibs</artifactId>
<version>${spring-security.version}</version>
</dependency>
If you look in the ISAPI And CGI Restrictions, and everything is already set to Allowed, then make sure that the ASP.NET v4.0.30319 handlers are even in the list. In my case they were not. This can be easy to overlook.
I added one for 32 %windir%\Microsoft.NET\Framework\v4.0.30319\aspnet_isapi.dll
and another for 64 bit %windir%\Microsoft.NET\Framework64\v4.0.30319\aspnet_isapi.dll
. You can name them both the same ASP.NET v4.0.30319
.
Check Allow extension path to execute.
The error message is actually correct if not obvious. It says that your DOCTYPE must have a SYSTEM identifier. I assume yours only has a public identifier.
You'll get the error with (for instance):
<!DOCTYPE persistence PUBLIC
"http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd">
You won't with:
<!DOCTYPE persistence PUBLIC
"http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd" "">
Notice ""
at the end in the second one -- that's the system identifier. The error message is confusing: it should say that you need a system identifier, not that you need a space between the publicId and the (non-existent) systemId.
By the way, an empty system identifier might not be ideal, but it might be enough to get you moving.
My solution, after trying EVERYTHING:
Bad deployment, an old PrecompiledApp.config was hanging around my deploy location, and making everything not work.
My final settings that worked:
Nothing changes in the web.config - this means no special handlers for routing. Here's my snapshot of the sections a lot of other posts reference. I'm using FluorineFX, so I do have that handler added, but I did not need any others:
<system.web>
<compilation debug="true" targetFramework="4.0" />
<authentication mode="None"/>
<pages validateRequest="false" controlRenderingCompatibilityVersion="3.5" clientIDMode="AutoID"/>
<httpRuntime requestPathInvalidCharacters=""/>
<httpModules>
<add name="FluorineGateway" type="FluorineFx.FluorineGateway, FluorineFx"/>
</httpModules>
</system.web>
<system.webServer>
<!-- Modules for IIS 7.0 Integrated mode -->
<modules>
<add name="FluorineGateway" type="FluorineFx.FluorineGateway, FluorineFx" />
</modules>
<!-- Disable detection of IIS 6.0 / Classic mode ASP.NET configuration -->
<validation validateIntegratedModeConfiguration="false" />
</system.webServer>
Global.ashx: (only method of any note)
void Application_Start(object sender, EventArgs e) {
// Register routes...
System.Web.Routing.Route echoRoute = new System.Web.Routing.Route(
"{*message}",
//the default value for the message
new System.Web.Routing.RouteValueDictionary() { { "message", "" } },
//any regular expression restrictions (i.e. @"[^\d].{4,}" means "does not start with number, at least 4 chars
new System.Web.Routing.RouteValueDictionary() { { "message", @"[^\d].{4,}" } },
new TestRoute.Handlers.PassthroughRouteHandler()
);
System.Web.Routing.RouteTable.Routes.Add(echoRoute);
}
PassthroughRouteHandler.cs - this achieved an automatic conversion from http://andrew.arace.info/stackoverflow to http://andrew.arace.info/#stackoverflow which would then be handled by the default.aspx:
public class PassthroughRouteHandler : IRouteHandler {
public IHttpHandler GetHttpHandler(RequestContext requestContext) {
HttpContext.Current.Items["IncomingMessage"] = requestContext.RouteData.Values["message"];
requestContext.HttpContext.Response.Redirect("#" + HttpContext.Current.Items["IncomingMessage"], true);
return null;
}
}
The main problem is port number used by another application.So you can change the port number to unused one as shown below.
In windows you can view the used port numbers used by different apps in windows task manager.
python manage.py runserver 127.0.0.1:portnumber
Ex: python manage.py runserver 127.0.0.1:8080
In my case .NET CRL Version in Application pool prppertires was set to No managed code (do not know why). Setting it to .NET CRL Version v4.0.30319 solved the problem.
Check this in the web.config and change overrideModeDefault
from Deny
to Allow
.
<configSections>
<sectionGroup name="system.webServer">
<section name="handlers" overrideModeDefault="Deny" />
<section name="modules" allowDefinition="MachineToApplication" overrideModeDefault="Deny" />
You can also manage sections on web server level in your IIS management console from "Feature Delegation".
That's the nature of TCP: the protocol fills up packets (lower layer being IP packets) and sends them. You can have some degree of control over the MTU (Maximum Transfer Unit).
In other words: you must devise a protocol that rides on top of TCP where your "payload delineation" is defined. By "payload delineation" I mean the way you extract the unit of message your protocol supports. This can be as simple as "every NULL terminated strings".
Just add attribute runAllManagedModulesForAllRequests="true"
to system.webServer\modules
in web.config.
This attribute is enabled by default in MVC and Dynamic Data projects.
In <body>
you should have two <script>
tags:
<script src="https://code.jquery.com/jquery-2.1.3.js"></script>
<script src="js/bootstrap.js"></script>
The first one will load jQuery from the CDN, and second one will load Bootstrap's Javascript from a local directory (in this case it's a directory called js
).
Conventional way we define condition in while loop parenthesis"()
" and terminating condition inside the braces"{}
", but this --
& >
is a way one defines all at once.
For example:
int abc(){
int a = 5
while((a--) > 0){ // Decrement and comparison both at once
// Code
}
}
It says, decrement a
and run the loop till the time a
is greater than 0
Other way it should have been like:
int abc() {
int a = 5;
while(a > 0) {
a = a -1 // Decrement inside loop
// Code
}
}
Both ways, we do the same thing and achieve the same goals.
Just create the database using createdb
CLI tool:
PGHOST="my.database.domain.com"
PGUSER="postgres"
PGDB="mydb"
createdb -h $PGHOST -p $PGPORT -U $PGUSER $PGDB
If the database exists, it will return an error:
createdb: database creation failed: ERROR: database "mydb" already exists
You can make the .navbar
fixed width, then set it's left and right margin to auto
.
.navbar{
width: 80%;
margin: 0 auto;
}?
Remove-Item -Recurse -Force some_dir
does indeed work as advertised here.
rm -r -fo some_dir
are shorthand aliases that work too.
As far as I understood it, the -Recurse
parameter just doesn't work correctly when you try deleting a filtered set of files recursively. For killing a single dir and everything below it seems to work fine.
I Recommend you implement INotifyPropertyChanged and change your databinding code to this:
this.textBox.DataBindings.Add("Text",
this.Food,
"Name",
false,
DataSourceUpdateMode.OnPropertyChanged);
That'll fix it.
Note that the default DataSourceUpdateMode
is OnValidation
, so if you don't specify OnPropertyChanged
, the model object won't be updated until after your validations have occurred.
Wow, you have a huge misunderstanding how asp.net works.
This line of code
System.Diagnostics.Process.Start("help/AdminTutorial.html");
Will not redirect a admin user to a new site, but start a new process on the server (usually a browser, IE) and load the site. That is for sure not what you want.
A very easy solution would be to change the href attribute of the link in you page_load method.
Your aspx code:
<a href="#" runat="server" id="myLink">Tutorial</a>
Your codebehind / cs code of page_load:
...
if (userinfo.user == "Admin")
{
myLink.Attributes["href"] = "help/AdminTutorial.html";
}
else
{
myLink.Attributes["href"] = "help/otherSite.html";
}
...
Don't forget to check the Admin rights again on "AdminTutorial.html" to "prevent" hacking.
|1 2 3|
|4 5 6|
Use the code below to print the values.
System.out.println(Arrays.deepToString());
Output will look like this (the whole matrix in one line):
[[1,2,3],[4,5,6]]
Just in case anyone has anymore troubles, this is a pretty sure fix.
check your etc/hosts file make sure you have a root user for every host.
i.e.
127.0.0.1 home.dev
localhost home.dev
Therefore I will have 2 or more users as root for mysql:
root@localhost
[email protected]
this is how I fixed my problem.
You do not need any client side code if doing this is ASP.NET. The example below is a boostrap input box with a search button with an fontawesome icon.
You will see that in place of using a regular < div > tag with a class of "input-group" I have used a asp:Panel. The DefaultButton property set to the id of my button, does the trick.
In example below, after typing something in the input textbox, you just hit enter and that will result in a submit.
<asp:Panel DefaultButton="btnblogsearch" runat="server" CssClass="input-group blogsearch">
<asp:TextBox ID="txtSearchWords" CssClass="form-control" runat="server" Width="100%" Placeholder="Search for..."></asp:TextBox>
<span class="input-group-btn">
<asp:LinkButton ID="btnblogsearch" runat="server" CssClass="btn btn-default"><i class="fa fa-search"></i></asp:LinkButton>
</span></asp:Panel>
I just posted this answer in the android-discuss google group
If you are just trying to add text to the view so that it displays "Step One: blast egg Step Two: fry egg" Then consider using t.appendText("Step Two: fry egg");
instead of t.setText("Step Two: fry egg");
If you want to completely change what is in the TextView
so that it says "Step One: blast egg" on startup and then it says "Step Two: fry egg" at a time later you can always use a
Runnable example sadboy gave
Good luck
Flexbox is another approach: add
.container {
display: flex;
justify-content: center;
}
_x000D_
And add the .container
class to the div which contains your svg.
Use Stringutils.split()
to split the string by whites paces. For example StringUtils.split("Hello World")
returns "Hello" and "World";
In order to solve the mentioned case we use split method like this
String split[]= StringUtils.split("Hello I'm your String");
when we print the split array the output will be :
Hello
I'm
your
String
Your code seems correct. I would presume it is something to do with the fact you are using a .png and the way the browser redraws the object upon rotation is inefficient, causing the hang (what browser are you testing under?)
If possible replace the .png with something native.
see; http://kilianvalkhof.com/2010/css-xhtml/css3-loading-spinners-without-images/
Chrome gives me no pauses using this method.
The $EUID environment variable holds the current user's UID. Root's UID is 0. Use something like this in your script:
if [ "$EUID" -ne 0 ]
then echo "Please run as root"
exit
fi
Note: If you get 2: [: Illegal number:
check if you have #!/bin/sh
at the top and change it to #!/bin/bash
.
You could use NOT IN
:
SELECT A.* FROM A WHERE ID NOT IN(SELECT ID FROM B)
However, meanwhile i prefer NOT EXISTS
:
SELECT A.* FROM A WHERE NOT EXISTS(SELECT 1 FROM B WHERE B.ID=A.ID)
There are other options as well, this article explains all advantages and disadvantages very well:
Should I use NOT IN, OUTER APPLY, LEFT OUTER JOIN, EXCEPT, or NOT EXISTS?
If maven works through proxy but not some of the plugins it is invoking, try setting JAVA_TOOL_OPTIONS
as well with -Dhttp*.proxy*
settings.
If you have already JAVA_OPTS
just do
export JAVA_TOOL_OPTIONS=$JAVA_OPTS
Insert your fetched values into an array instead of echoing.
Use file_put_contents()
and insert json_encode($rows)
into that file, if $rows
is your data.
use net stop mysql57 instead, it should be the version that is not specified
You are copying all files to a single file called TEST_BACKUP_FOLDER
try this:
md TEST_BACKUP_FOLDER
copy "\\My_Servers_IP\Shared Drive\FolderName\*" TEST_BACKUP_FOLDER
From Linux Change Default User Home Directory While Adding A New User:
Simply open this file using a text editor, type:
vi /etc/default/useradd
The default home directory defined by HOME variable, find line that read as follows:
HOME=/home
Replace with:
HOME=/iscsi/user
Save and close the file. Now you can add user using regular useradd command:
# useradd vivek # passwd vivek
Verify user information:
# finger vivek
your server should enable the cross origin requests, not the client. To do this, you can check this nice page with implementations and configurations for multiple platforms
There seems to be a lot of these questions surrounding inheriting a member method from a Grandparent Class, overriding it in a second Class, then calling its method again from a Grandchild Class. Why not just inherit the grandparent's members down to the grandchildren?
class A
{
private string mystring = "A";
public string Method1()
{
return mystring;
}
}
class B : A
{
// this inherits Method1() naturally
}
class C : B
{
// this inherits Method1() naturally
}
string newstring = "";
A a = new A();
B b = new B();
C c = new C();
newstring = a.Method1();// returns "A"
newstring = b.Method1();// returns "A"
newstring = c.Method1();// returns "A"
Seems simple....the grandchild inherits the grandparents method here. Think about it.....that's how "Object" and its members like ToString() are inherited down to all classes in C#. I'm thinking Microsoft has not done a good job of explaining basic inheritance. There is too much focus on polymorphism and implementation. When I dig through their documentation there are no examples of this very basic idea. :(
it can be done by using this command: tcptraceroute -p destination port destination IP
. like: tcptraceroute -p 9100 10.0.0.50
but don't forget to install tcptraceroute package on your system. tcpdump and nc by default installed on the system. regards
I am using JsonProperty attributes when serializing but ignoring them when deserializing using this ContractResolver
:
public class IgnoreJsonPropertyContractResolver: DefaultContractResolver
{
protected override IList<JsonProperty> CreateProperties(Type type, MemberSerialization memberSerialization)
{
var properties = base.CreateProperties(type, memberSerialization);
foreach (var p in properties) { p.PropertyName = p.UnderlyingName; }
return properties;
}
}
The ContractResolver
just sets every property back to the class property name (simplified from Shimmy's solution). Usage:
var airplane= JsonConvert.DeserializeObject<Airplane>(json,
new JsonSerializerSettings { ContractResolver = new IgnoreJsonPropertyContractResolver() });
When Python2.x sees a == b
, it tries the following.
type(b)
is a new-style class, and type(b)
is a subclass of type(a)
, and type(b)
has overridden __eq__
, then the result is b.__eq__(a)
.type(a)
has overridden __eq__
(that is, type(a).__eq__
isn't object.__eq__
), then the result is a.__eq__(b)
.type(b)
has overridden __eq__
, then the result is b.__eq__(a)
.__cmp__
. If it exists, the objects are equal iff it returns zero
.object.__eq__(a, b)
, which is True
iff a
and b
are the same object.If any of the special methods return NotImplemented
, Python acts as though the method didn't exist.
Note that last step carefully: if neither a
nor b
overloads ==
, then a == b
is the same as a is b
.
I got this error in an Ubuntu Docker container. I believe the cause was that the container was missing CA certs. To fix it, I had to run:
apt-get update
apt-get install ca-certificates
You can use this;
String.format("%1$s %2$s %2$s %3$s", "a", "b", "c");
Output:
a b b c
In Java 8 you could easily turn your text file into a List of Strings with streams by using Files.lines
and collect
:
private List<String> loadFile() {
URI uri = null;
try {
uri = ClassLoader.getSystemResource("example.txt").toURI();
} catch (URISyntaxException e) {
LOGGER.error("Failed to load file.", e);
}
List<String> list = null;
try (Stream<String> lines = Files.lines(Paths.get(uri))) {
list = lines.collect(Collectors.toList());
} catch (IOException e) {
LOGGER.error("Failed to load file.", e);
}
return list;
}
public List<DealInfo> getDealInfos(List<String> dealIds) {
String queryStr = "SELECT NEW com.admin.entity.DealInfo(deal.url, deal.url, deal.url, deal.url, deal.price, deal.value) " + "FROM Deal AS deal where deal.id in :inclList";
TypedQuery<DealInfo> query = em.createQuery(queryStr, DealInfo.class);
query.setParameter("inclList", dealIds);
return query.getResultList();
}
Works for me with JPA 2, Jboss 7.0.2
Using ES6 backticks ``: template literals!
let nick = "Castor", name = "Moon", nuts = 1_x000D_
_x000D_
more.innerHTML = `_x000D_
_x000D_
<h1>Hello ${nick} ${name}!</h1>_x000D_
_x000D_
You collected ${nuts} nuts so far!_x000D_
_x000D_
<hr>_x000D_
_x000D_
Double it and get ${nuts + nuts} nuts!!_x000D_
_x000D_
`
_x000D_
<div id="more"></div>
_x000D_
This way we can include html without encoding quotes, include variables from the DOM, and so on.
It is a powerful templating engine, we can use separate js files and use events to load the content in place, or even separate everything in chunks and call on demand:
let inject = document.createElement('script');
inject.src= '//....com/template/panel45.js';
more.appendChild(inject);
on Ubuntu Bionic (18.04), six is already install for python2 and python3 but I have the error launching Wammu. @3ygun solution worked for me to solve
ImportError: No module named six
when launching Wammu
If it's occurred for python3 program, six come with
pip3 install six
and if you don't have pip3:
apt install python3-pip
with sudo under Ubuntu!
I did following steps to downgrade Gradle back to the original version:
Probably last step is enough as in my case the path to the new Gradle distribution was hardcoded there under 'Gradle home' option.
Many of the solutions have focused on complicating things.
Using withRouter is a really long solution for something as simple as a button that links to somewhere else in the App.
If you are going for S.P.A. (single page application), the easiest answer I have found is to use with the button's equivalent className.
This ensures you are maintaining shared state / context without reloading your entire app as is done with
import { NavLink } from 'react-router-dom'; // 14.6K (gzipped: 5.2 K)
// Where link.{something} is the imported data
<NavLink className={`bx--btn bx--btn--primary ${link.className}`} to={link.href} activeClassName={'active'}>
{link.label}
</NavLink>
// Simplified version:
<NavLink className={'bx--btn bx--btn--primary'} to={'/myLocalPath'}>
Button without using withRouter
</NavLink>
You can use a css selector combination a well
driver.find_element_by_css_selector("#fruits01 [value='1']").click()
Change the 1 in the attribute = value css selector to the value corresponding with the desired fruit.
Did some tests both on linux and windows. I use a test file containing lines ending in LF and also lines ending in CRLF.
File is committed , removed and then checked out.
The value of core.autocrlf is set before commit and also before checkout.
The result is below.
commit core.autocrlf false, remove, checkout core.autocrlf false: LF=>LF CRLF=>CRLF
commit core.autocrlf false, remove, checkout core.autocrlf input: LF=>LF CRLF=>CRLF
commit core.autocrlf false, remove, checkout core.autocrlf true : LF=>LF CRLF=>CRLF
commit core.autocrlf input, remove, checkout core.autocrlf false: LF=>LF CRLF=>LF
commit core.autocrlf input, remove, checkout core.autocrlf input: LF=>LF CRLF=>LF
commit core.autocrlf input, remove, checkout core.autocrlf true : LF=>CRLF CRLF=>CRLF
commit core.autocrlf true, remove, checkout core.autocrlf false: LF=>LF CRLF=>LF
commit core.autocrlf true, remove, checkout core.autocrlf input: LF=>LF CRLF=>LF
commit core.autocrlf true, remove, checkout core.autocrlf true : LF=>CRLF CRLF=>CRLF
I just wrote array intersection that correctly handles also duplicates
https://gist.github.com/gkucmierz/8ee04544fa842411f7553ef66ac2fcf0
// array intersection that correctly handles also duplicates_x000D_
_x000D_
const intersection = (a1, a2) => {_x000D_
const cnt = new Map();_x000D_
a2.map(el => cnt[el] = el in cnt ? cnt[el] + 1 : 1);_x000D_
return a1.filter(el => el in cnt && 0 < cnt[el]--);_x000D_
};_x000D_
_x000D_
const l = console.log;_x000D_
l(intersection('1234'.split``, '3456'.split``)); // [ '3', '4' ]_x000D_
l(intersection('12344'.split``, '3456'.split``)); // [ '3', '4' ]_x000D_
l(intersection('1234'.split``, '33456'.split``)); // [ '3', '4' ]_x000D_
l(intersection('12334'.split``, '33456'.split``)); // [ '3', '3', '4' ]
_x000D_
First off I recommend you use the following constructor instead of the one you currently use:
new SerialPort("COM10", 115200, Parity.None, 8, StopBits.One);
Next, you really should remove this code:
// Wait 10 Seconds for data...
for (int i = 0; i < 1000; i++)
{
Thread.Sleep(10);
Console.WriteLine(sp.Read(buf,0,bufSize)); //prints data directly to the Console
}
And instead just loop until the user presses a key or something, like so:
namespace serialPortCollection
{ class Program
{
static void Main(string[] args)
{
SerialPort sp = new SerialPort("COM10", 115200);
sp.DataReceived += port_OnReceiveDatazz; // Add DataReceived Event Handler
sp.Open();
sp.WriteLine("$"); //Command to start Data Stream
Console.ReadLine();
sp.WriteLine("!"); //Stop Data Stream Command
sp.Close();
}
// My Event Handler Method
private static void port_OnReceiveDatazz(object sender,
SerialDataReceivedEventArgs e)
{
SerialPort spL = (SerialPort) sender;
byte[] buf = new byte[spL.BytesToRead];
Console.WriteLine("DATA RECEIVED!");
spL.Read(buf, 0, buf.Length);
foreach (Byte b in buf)
{
Console.Write(b.ToString());
}
Console.WriteLine();
}
}
}
Also, note the revisions to the data received event handler, it should actually print the buffer now.
UPDATE 1
I just ran the following code successfully on my machine (using a null modem cable between COM33 and COM34)
namespace TestApp
{
class Program
{
static void Main(string[] args)
{
Thread writeThread = new Thread(new ThreadStart(WriteThread));
SerialPort sp = new SerialPort("COM33", 115200, Parity.None, 8, StopBits.One);
sp.DataReceived += port_OnReceiveDatazz; // Add DataReceived Event Handler
sp.Open();
sp.WriteLine("$"); //Command to start Data Stream
writeThread.Start();
Console.ReadLine();
sp.WriteLine("!"); //Stop Data Stream Command
sp.Close();
}
private static void port_OnReceiveDatazz(object sender,
SerialDataReceivedEventArgs e)
{
SerialPort spL = (SerialPort) sender;
byte[] buf = new byte[spL.BytesToRead];
Console.WriteLine("DATA RECEIVED!");
spL.Read(buf, 0, buf.Length);
foreach (Byte b in buf)
{
Console.Write(b.ToString() + " ");
}
Console.WriteLine();
}
private static void WriteThread()
{
SerialPort sp2 = new SerialPort("COM34", 115200, Parity.None, 8, StopBits.One);
sp2.Open();
byte[] buf = new byte[100];
for (byte i = 0; i < 100; i++)
{
buf[i] = i;
}
sp2.Write(buf, 0, buf.Length);
sp2.Close();
}
}
}
UPDATE 2
Given all of the traffic on this question recently. I'm beginning to suspect that either your serial port is not configured properly, or that the device is not responding.
I highly recommend you attempt to communicate with the device using some other means (I use hyperterminal frequently). You can then play around with all of these settings (bitrate, parity, data bits, stop bits, flow control) until you find the set that works. The documentation for the device should also specify these settings. Once I figured those out, I would make sure my .NET SerialPort is configured properly to use those settings.
Some tips on configuring the serial port:
Note that when I said you should use the following constructor, I meant that use that function, not necessarily those parameters! You should fill in the parameters for your device, the settings below are common, but may be different for your device.
new SerialPort("COM10", 115200, Parity.None, 8, StopBits.One);
It is also important that you setup the .NET SerialPort to use the same flow control as your device (as other people have stated earlier). You can find more info here:
http://www.lammertbies.nl/comm/info/RS-232_flow_control.html
Specifying a non-static position, e.g., position: absolute/relative
on a node means that it will be used as the reference for absolutely positioned elements within it http://jsfiddle.net/E5eEk/1/
See https://developer.mozilla.org/en-US/docs/Learn/CSS/CSS_layout/Positioning#Positioning_contexts
We can change the positioning context — which element the absolutely positioned element is positioned relative to. This is done by setting positioning on one of the element's ancestors.
#outer {_x000D_
min-width: 2000px; _x000D_
min-height: 1000px; _x000D_
background: #3e3e3e; _x000D_
position:relative_x000D_
}_x000D_
_x000D_
#inner {_x000D_
left: 1%; _x000D_
top: 45px; _x000D_
width: 50%; _x000D_
height: auto; _x000D_
position: absolute; _x000D_
z-index: 1;_x000D_
}_x000D_
_x000D_
#inner-inner {_x000D_
background: #efffef;_x000D_
position: absolute; _x000D_
height: 400px; _x000D_
right: 0px; _x000D_
left: 0px;_x000D_
}
_x000D_
<div id="outer">_x000D_
<div id="inner">_x000D_
<div id="inner-inner"></div>_x000D_
</div>_x000D_
</div>
_x000D_
Here's the list of all Win32 error codes. You can use this page to lookup the error code mentioned in IIS logs:
http://msdn.microsoft.com/en-us/library/ms681381.aspx
You can also use command line utility net
to find information about a Win32 error code. The syntax would be:
net helpmsg Win32_Status_Code
Here is a universal solution that iterates through every field in form and creates the request string automatically. It is using new fetch API. Automatically reads form attributes: method
and action
and grabs all fields inside the form. Support single-dimension array fields, like emails[]
. Could serve as universal solution to manage easily many (perhaps dynamic) forms with single source of truth - html.
document.querySelector('.ajax-form').addEventListener('submit', function(e) {
e.preventDefault();
let formData = new FormData(this);
let parsedData = {};
for(let name of formData) {
if (typeof(parsedData[name[0]]) == "undefined") {
let tempdata = formData.getAll(name[0]);
if (tempdata.length > 1) {
parsedData[name[0]] = tempdata;
} else {
parsedData[name[0]] = tempdata[0];
}
}
}
let options = {};
switch (this.method.toLowerCase()) {
case 'post':
options.body = JSON.stringify(parsedData);
case 'get':
options.method = this.method;
options.headers = {'Content-Type': 'application/json'};
break;
}
fetch(this.action, options).then(r => r.json()).then(data => {
console.log(data);
});
});
<form method="POST" action="some/url">
<input name="emails[]">
<input name="emails[]">
<input name="emails[]">
<input name="name">
<input name="phone">
</form>
Tag = a defined slice in time, usually used for releases
I think this is what one typically means by "tag". But in Subversion:
They don't really have any formal meaning. A folder is a folder to SVN.
which I find rather confusing: a revision control system that knows nothing about branches or tags. From an implementation point of view, I think the Subversion way of creating "copies" is very clever, but me having to know about it is what I'd call a leaky abstraction.
Or perhaps I've just been using CVS far too long.
JS provides the tools to do this the right way. Try the demo snippet.
var doc = document;_x000D_
var buttons = doc.getElementsByTagName('button');_x000D_
var button = buttons[0];_x000D_
_x000D_
button.addEventListener("mouseover", function(){_x000D_
this.classList.add('mouse-over');_x000D_
});_x000D_
_x000D_
button.addEventListener("mouseout", function(){_x000D_
this.classList.remove('mouse-over');_x000D_
});_x000D_
_x000D_
button.addEventListener("mousedown", function(){_x000D_
this.classList.add('mouse-down');_x000D_
});_x000D_
_x000D_
button.addEventListener("mouseup", function(){_x000D_
this.classList.remove('mouse-down');_x000D_
alert('Button Clicked!');_x000D_
});_x000D_
_x000D_
//this is unrelated to button styling. It centers the button._x000D_
var box = doc.getElementById('box');_x000D_
var boxHeight = window.innerHeight;_x000D_
box.style.height = boxHeight + 'px';
_x000D_
button{_x000D_
text-transform: uppercase;_x000D_
background-color:rgba(66, 66, 66,0.3);_x000D_
border:none;_x000D_
font-size:4em;_x000D_
color:white;_x000D_
-webkit-box-shadow: 0px 10px 5px -4px rgba(0,0,0,0.33);_x000D_
-moz-box-shadow: 0px 10px 5px -4px rgba(0,0,0,0.33);_x000D_
box-shadow: 0px 10px 5px -4px rgba(0,0,0,0.33);_x000D_
}_x000D_
button:focus {_x000D_
outline:0;_x000D_
}_x000D_
.mouse-over{_x000D_
background-color:rgba(66, 66, 66,0.34);_x000D_
}_x000D_
.mouse-down{_x000D_
-webkit-box-shadow: 0px 6px 5px -4px rgba(0,0,0,0.52);_x000D_
-moz-box-shadow: 0px 6px 5px -4px rgba(0,0,0,0.52);_x000D_
box-shadow: 0px 6px 5px -4px rgba(0,0,0,0.52); _x000D_
}_x000D_
_x000D_
/* unrelated to button styling */_x000D_
#box {_x000D_
display: flex;_x000D_
flex-flow: row nowrap ;_x000D_
justify-content: center;_x000D_
align-content: center;_x000D_
align-items: center;_x000D_
width:100%;_x000D_
}_x000D_
_x000D_
button {_x000D_
order:1;_x000D_
flex: 0 1 auto;_x000D_
align-self: auto;_x000D_
min-width: 0;_x000D_
min-height: auto;_x000D_
} _x000D_
_x000D_
_x000D_
_x000D_
<!DOCTYPE html>_x000D_
<html lang="en">_x000D_
<head>_x000D_
<meta charset=utf-8 />_x000D_
<meta name="description" content="3d Button Configuration" />_x000D_
</head>_x000D_
_x000D_
<body>_x000D_
<section id="box">_x000D_
<button>_x000D_
Submit_x000D_
</button>_x000D_
</section>_x000D_
</body>_x000D_
</html>
_x000D_
im not really that good at C , but i believe this code should get you complete single line till the end...
#include<stdio.h>
int main()
{
char line[1024];
FILE *f=fopen("filename.txt","r");
fscanf(*f,"%[^\n]",line);
printf("%s",line);
}
I had a similar problem with truncated tar files being produced by a cron job and redirecting standard out to a file fixed the issue.
From talking to a colleague, cron creates a pipe and limits the amount of output that can be sent to standard out. I fixed mine by removing -v from my tar command, making it much less verbose and keeping the error output in the same spot as the rest of my cron jobs. If you need the verbose tar output, you'll need to redirect to a file, though.
In my case it was something else, +=
operator caused this. I had to replace += X
with field = field + X
to overcome this. I assume this is a bug though I wasn't able to find any related KB on Microsoft sites.
I am using SQL Server 2008 R2(10.50.1600).
I solved this, without having to completely reinstall Visual Studio 2013.
For those who may come across this in the future, the following steps worked for me:
vs_professional.exe
).If you get the error below, you need to update the Windows Registry to trick the installer into thinking you still have the base version. If you don't get this error, skip to step 3
Click the link for 'examine the log file' and look near the bottom of the log, for this line:
open regedit.exe
and do an Edit > Find...
for that GUID. In my case it was {6dff50d0-3bc3-4a92-b724-bf6d6a99de4f}
. This was found in:
HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall{6dff50d0-3bc3-4a92-b724-bf6d6a99de4f}
Edit the BundleVersion
value and change it to a lower version. I changed mine from 12.0.21005.13
to 12.0.21000.13
:
Exit the registry
Run the ISO (or vs_professional.exe
) again. If it has a repair button like the image below, you can skip to step 4.
Run the ISO (or vs_professional.exe
) again. This time repair should be visible.
Click Repair
and let it update your installation and apply its embedded license key. This took about 20 minutes.
Now when you run Visual Studio 2013, it should indicate that a license key was applied, under Help > Register Product
:
Hope this helps somebody in the future!
If you find yourself applying those 2 roles often you can wrap them in their own Authorize. This is really an extension of the accepted answer.
using System.Web.Mvc;
public class AuthorizeAdminOrMember : AuthorizeAttribute
{
public AuthorizeAdminOrMember()
{
Roles = "members, admin";
}
}
And then apply your new authorize to the Action. I think this looks cleaner and reads easily.
public class MyController : Controller
{
[AuthorizeAdminOrMember]
public ActionResult MyAction()
{
return null;
}
}
Starting from Java 7:
Define a path and the String containing the line separator at the beginning:
Path p = Paths.get("C:\\Users\\first.last\\test.txt");
String s = System.lineSeparator() + "New Line!";
and then you can use one of the following approaches:
Using Files.write
(small files):
try {
Files.write(p, s.getBytes(), StandardOpenOption.APPEND);
} catch (IOException e) {
System.err.println(e);
}
Using Files.newBufferedWriter
(text files):
try (BufferedWriter writer = Files.newBufferedWriter(p, StandardOpenOption.APPEND)) {
writer.write(s);
} catch (IOException ioe) {
System.err.format("IOException: %s%n", ioe);
}
Using Files.newOutputStream
(interoperable with java.io
APIs):
try (OutputStream out = new BufferedOutputStream(Files.newOutputStream(p, StandardOpenOption.APPEND))) {
out.write(s.getBytes());
} catch (IOException e) {
System.err.println(e);
}
Using Files.newByteChannel
(random access files):
try (SeekableByteChannel sbc = Files.newByteChannel(p, StandardOpenOption.APPEND)) {
sbc.write(ByteBuffer.wrap(s.getBytes()));
} catch (IOException e) {
System.err.println(e);
}
Using FileChannel.open
(random access files):
try (FileChannel sbc = FileChannel.open(p, StandardOpenOption.APPEND)) {
sbc.write(ByteBuffer.wrap(s.getBytes()));
} catch (IOException e) {
System.err.println(e);
}
Details about these methods can be found in the Oracle's tutorial.
Just to add on these answers is that, mod_php is the oldest and slowest method available in HTTPD server to use PHP. It is not recommended, unless you are running old versions of Apache HTTPD and PHP. php-fpm and proxy_cgi are the preferred methods.
If the structures are of compatible types, yes, you can, with something like:
memcpy (dest_struct, source_struct, sizeof (*dest_struct));
The only thing you need to be aware of is that this is a shallow copy. In other words, if you have a char *
pointing to a specific string, both structures will point to the same string.
And changing the contents of one of those string fields (the data that the char *
points to, not the char *
itself) will change the other as well.
If you want a easy copy without having to manually do each field but with the added bonus of non-shallow string copies, use strdup
:
memcpy (dest_struct, source_struct, sizeof (*dest_struct));
dest_struct->strptr = strdup (source_struct->strptr);
This will copy the entire contents of the structure, then deep-copy the string, effectively giving a separate string to each structure.
And, if your C implementation doesn't have a strdup
(it's not part of the ISO standard), get one from here.
In my experience, this turned out to be the most efficient
driver.find_element_by_css_selector('foo').send_keys(u'\ue009' + u'\ue003')
We are sending Ctrl + Backspace to delete all characters from the input, you can also replace backspace with delete.
EDIT: removed Keys dependency
just use ob_start();
before include function it will help
OpenGL should be present already - it will probably be Freeglut / GLUT that is missing.
GLUT is very dated now and not actively supported - so you should certainly be using Freeglut instead. You won't have to change your code at all, and a few additional features become available.
You'll find pre-packaged sets of files from here: http://freeglut.sourceforge.net/index.php#download If you don't see the "lib" folder, it's because you didn't download the pre-packaged set. "Martin Payne's Windows binaries" is posted at above link and works on Windows 8.1 with Visual Studio 2013 at the time of this writing.
When you download these you'll find that the Freeglut folder has three subfolders: - bin folder: this contains the dll files for runtime - include: the header files for compilation - lib: contains library files for compilation/linking
Installation instructions usually suggest moving these files into the visual studio folder and the Windows system folder: It is best to avoid doing this as it makes your project less portable, and makes it much more difficult if you ever need to change which version of the library you are using (old projects might suddenly stop working, etc.)
Instead (apologies for any inconsistencies, I'm basing these instructions on VS2010)... - put the freeglut folder somewhere else, e.g. C:\dev - Open your project in Visual Studio - Open project properties - There should be a tab for VC++ Directories, here you should add the appropriate include and lib folders, e.g.: C:\dev\freeglut\include and C:\dev\freeglut\lib - (Almost) Final step is to ensure that the opengl lib file is actually linked during compilation. Still in project properties, expand the linker menu, and open the input tab. For Additional Dependencies add opengl32.lib (you would assume that this would be linked automatically just by adding the include GL/gl.h to your project, but for some reason this doesn't seem to be the case)
At this stage your project should compile OK. To actually run it, you also need to copy the freeglut.dll files into your project folder
In this way, you can start to select data even behind column "Z" and select a lot of columns.
Sub SelectColumNums()
Dim xCol1 As Integer, xNumOfCols as integer
xCol1 = 26
xNumOfCols = 17
Range(Columns(xCol1), Columns(xCol1 + xNumOfCols)).Select
End Sub
If you want to change your 'sa' password with SQL Server Management Studio, here are the steps:
Change server authentication mode - Right click on root, choose Properties, from Security tab select "SQL Server and Windows Authentication mode", click OK
Set sa password - Navigate to Security > Logins > sa, right click on it, choose Properties, from General tab set the Password (don't close the window)
Grant permission - Go to Status tab, make sure the Grant and Enabled radiobuttons are chosen, click OK
Restart SQLEXPRESS service from your local services (Window+R > services.msc)
I've a PHP library which helps to insert array into MySQL Database. By using this you can create update and delete. Your array key value should be same as the table column value. Just using a single line code for the create operation
DB::create($db, 'YOUR_TABLE_NAME', $dataArray);
where $db is your Database connection.
Similarly, You can use this for update and delete. Select operation will be available soon. Github link to download : https://github.com/pairavanvvl/crud
I've got it, finally!
<?php
function mysql_get_prim_key($table){
$sql = "SHOW INDEX FROM $table WHERE Key_name = 'PRIMARY'";
$gp = mysql_query($sql);
$cgp = mysql_num_rows($gp);
if($cgp > 0){
// Note I'm not using a while loop because I never use more than one prim key column
$agp = mysql_fetch_array($gp);
extract($agp);
return($Column_name);
}else{
return(false);
}
}
?>
When there is a mouse click ctrlKey is event attribute which can be accessed as e.ctrlKey.
Look down for example
$("xyz").click(function(e)){
if(e.ctrlKey){
//if ctrl key is pressed
}
else{
// if ctrl key is not pressed
}
}
Clear your browser cache. Started getting this error in Chrome and then I created a new client id and was still getting the issue. Opened firefox and it worked, so I cleared the cache on Chrome and it started working.
FacesContext context = FacesContext.getCurrentInstance();
HttpServletResponse response = (HttpServletResponse)context.getExternalContext().getResponse();
response.sendRedirect("somePage.jsp");
#if !defined(MANUF) || !defined(SERIAL) || !defined(MODEL)
You have Numpy Data Type, Just change to normal int()
or float()
data type. it will work fine.
I also got the same error. May be because of the version of tensorflow. After installing tensorflow 1.4.0, I got relief from the error.
pip install tensorflow==1.4.0
For me, all I had to do is add maxReceivedMessageSize="2147483647"
to the client app.config. The server left untouched.
Calling
for /?
in the command-line gives help about this syntax (which can be used outside FOR, too, this is just the place where help can be found).
In addition, substitution of FOR variable references has been enhanced. You can now use the following optional syntax:
%~I - expands %I removing any surrounding quotes (") %~fI - expands %I to a fully qualified path name %~dI - expands %I to a drive letter only %~pI - expands %I to a path only %~nI - expands %I to a file name only %~xI - expands %I to a file extension only %~sI - expanded path contains short names only %~aI - expands %I to file attributes of file %~tI - expands %I to date/time of file %~zI - expands %I to size of file %~$PATH:I - searches the directories listed in the PATH environment variable and expands %I to the fully qualified name of the first one found. If the environment variable name is not defined or the file is not found by the search, then this modifier expands to the empty string
The modifiers can be combined to get compound results:
%~dpI - expands %I to a drive letter and path only %~nxI - expands %I to a file name and extension only %~fsI - expands %I to a full path name with short names only %~dp$PATH:I - searches the directories listed in the PATH environment variable for %I and expands to the drive letter and path of the first one found. %~ftzaI - expands %I to a DIR like output line
In the above examples %I and PATH can be replaced by other valid values. The %~ syntax is terminated by a valid FOR variable name. Picking upper case variable names like %I makes it more readable and avoids confusion with the modifiers, which are not case sensitive.
There are different letters you can use like f
for "full path name", d
for drive letter, p
for path, and they can be combined. %~
is the beginning for each of those sequences and a number I
denotes it works on the parameter %I
(where %0
is the complete name of the batch file, just like you assumed).
To actually do it in HTML with inline CSS (not with an external CSS style sheet)
<input type="text" style="font-size: 44pt">
A lot of people would consider putting the style right into the html like this to be poor form. However, I frequently make extreeemly simple web pages for my own use that don't even have a <html>
or <body>
tag, and such is appropriate there.
(Disclaimer I worked on this component at Software Siglo XXI)
You could use Super Pdf2Image Converter to generate a TIFF multi-page file with all the rendered pages from the PDF in high resolution. It's available for both 32 and 64 bit and is very cheap and effective. I'd recommend you to try it.
Just one line of code...
GetImage(outputFileName, firstPage, lastPage, resolution, imageFormat)
Converts specifies pages to image and save them to outputFileName (tiff allows multi-page or creates several files)
You can take a look here: http://softwaresigloxxi.com/SuperPdf2ImageConverter.html
I was able to solve this on OS X by shutting down the existing mysql.server
that was running:
mysql.server stop
The starting:
mysql.server start
From there I could run mysql.server restart
without throwing the ERROR.
As other have said, TRUNCATE TABLE
is far quicker, but it does have some restrictions (taken from here):
You cannot use TRUNCATE TABLE on tables that:
- Are referenced by a FOREIGN KEY constraint. (You can truncate a table that has a foreign key that references itself.)
- Participate in an indexed view.
- Are published by using transactional replication or merge replication.
For tables with one or more of these characteristics, use the DELETE statement instead.
The biggest drawback is that if the table you are trying to empty has foreign keys pointing to it, then the truncate call will fail.
Update to Justin answer above. if you want to use it using Data Annotation in MVC you can do as follow
[RegularExpression(@"^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)(?=.*[^\da-zA-Z]).{8,15}$", ErrorMessage = "Password must be between 6 and 20 characters and contain one uppercase letter, one lowercase letter, one digit and one special character.")]
if(A == "haha" && B == "hihi") {
//hahahihi?
}
if(A == "haha" || B != "hihi") {
//hahahihi!?
}
Local package is a annoying problem in go.
For some projects in our company we decide not use sub packages at all.
$ glide install
$ go get
$ go install
All work.
For some projects we use sub packages, and import local packages with full path:
import "xxxx.gitlab.xx/xxgroup/xxproject/xxsubpackage
But if we fork this project, then the subpackages still refer the original one.
A little reminder, when elements are added dynamically, functions like append()
, appendTo()
, prepend()
or prependTo()
return a jQuery object, not the HTML DOM element.
var container=$("div.container").get(0),
htmlA="<div class=children>A</div>",
htmlB="<div class=children>B</div>";
// jQuery object
alert( $(container).append(htmlA) ); // outputs "[object Object]"
// HTML DOM element
alert( $(container).append(htmlB).get(0) ); // outputs "[object HTMLDivElement]"
You can also use the furl module https://github.com/gruns/furl
>>> from furl import furl
>>> print furl('http://example.com/search?q=question').add({'lang':'en','tag':'python'}).url
http://example.com/search?q=question&lang=en&tag=python
There's also another way to do this-
select TO_CHAR(SA.[RequestStartDate] , 'DD/MM/YYYY') as RequestStartDate from ... ;
You can use XMLGrid's Online viewer which provides a great XSD support and many other features:
Screenshot:
An inner class has access to all members of the outer class, but it does not have an implicit reference to a parent class instance (unlike some weirdness with Java). So if you pass a reference to the outer class to the inner class, it can reference anything in the outer class instance.
In PHP, there is function srand(seed)
which generate fixed random value for particular seed.
But, in JS, there is no such inbuilt function.
However, we can write simple and short function.
Step 1: Choose some Seed (Fix Number).
var seed = 100;
Number should be Positive Integer and greater than 1, further explanation in Step 2.
Step 2: Perform Math.sin() function on Seed, it will give sin value of that number. Store this value in variable x.
var x;
x = Math.sin(seed); // Will Return Fractional Value between -1 & 1 (ex. 0.4059..)
sin() method returns a Fractional value between -1 and 1.
And we don't need Negative value, therefore, in first step choose number greater than 1.
Step 3: Returned Value is a Fractional value between -1 and 1.
So mulitply this value with 10 for making it more than 1.
x = x * 10; // 10 for Single Digit Number
Step 4: Multiply the value with 10 for additional digits
x = x * 10; // Will Give value between 10 and 99 OR
x = x * 100; // Will Give value between 100 and 999
Multiply as per requirement of digits.
The result will be in decimal.
Step 5: Remove value after Decimal Point by Math's Round (Math.round()) Method.
x = Math.round(x); // This will give Integer Value.
Step 6: Turn Negative Values into Positive (if any) by Math.abs method
x = Math.abs(x); // Convert Negative Values into Positive(if any)
Explanation End.
Final Code
var seed = 111; // Any Number greater than 1
var digit = 10 // 1 => single digit, 10 => 2 Digits, 100 => 3 Digits and so. (Multiple of 10)
var x; // Initialize the Value to store the result
x = Math.sin(seed); // Perform Mathematical Sin Method on Seed.
x = x * 10; // Convert that number into integer
x = x * digit; // Number of Digits to be included
x = Math.round(x); // Remove Decimals
x = Math.abs(x); // Convert Negative Number into Positive
Clean and Optimized Functional Code
function random_seed(seed, digit = 1) {
var x = Math.abs(Math.round(Math.sin(seed++) * 10 * digit));
return x;
}
Then Call this function using
random_seed(any_number, number_of_digits)
any_number is must and should be greater than 1.
number_of_digits is optional parameter and if nothing passed, 1 Digit will return.
random_seed(555); // 1 Digit
random_seed(234, 1); // 1 Digit
random_seed(7895656, 1000); // 4 Digit
So a different way to solve this problem would be instead of removing the elements create a new dictionary and only add the elements you didnt want to remove then replace the original dictionary with the new one. I don't think this is too much of an efficiency problem because it does not increase the number of times you iterate over the structure.
get_categories(number){
return this.http.post( url, body, {headers: headers, withCredentials:true})
.map(t=> {
this.total = t.json();
return total;
}).share();
);
}
then
this.get_category(1).subscribe(t=> {
this.callfunc();
});
I think onRestart() works better for this.
@Override
public void onRestart() {
super.onRestart();
//When BACK BUTTON is pressed, the activity on the stack is restarted
//Do what you want on the refresh procedure here
}
You could code what you want to do when the Activity is restarted (called again from the event 'back button pressed') inside onRestart().
For example, if you want to do the same thing you do in onCreate(), paste the code in onRestart() (eg. reconstructing the UI with the updated values).
There is an actual Data Type called KeyValuePair, use like this
KeyValuePair<string, string> myKeyValuePair = new KeyValuePair<string,string>("defaultkey", "defaultvalue");
A simple solution - replace contents this file (/res/values/styles.xml) to this is text:
<resources>
<!-- Base application theme. -->
<style name="AppTheme" parent="android:Theme.Holo.Light.DarkActionBar">
<!-- Customize your theme here. -->
</style>
The regular expression:
^[^_]*_(.*)$
Then get the part between parenthesis. In perl:
my var = "3.04_somename.jpg";
$var =~ m/^[^_]*_(.*)$/;
my fileName = $1;
In Java:
String var = "3.04_somename.jpg";
String fileName = "";
Pattern pattern = Pattern.compile("^[^_]*_(.*)$");
Matcher matcher = pattern.matcher(var);
if (matcher.matches()) {
fileName = matcher.group(1);
}
...
I'd fought with this a long time $('#myelement').val(x)
just wasn't working ... until I realized the #
construction requires an ID, not a NAME. So if ".val(x)
doesn't work!" is your problem, check your element and be sure it has an ID!
It's an embarrassing gotcha, but I felt I had to share to save others much hair-tearing.
There is no other way, I have to specify everything twice. First for the insert, second in the update case.
One issue you might run into is is_home()
returns true when a registered query_var is present in the home URL. For example, if http://example.com
displays a static page instead of the blog, http://example.com/?c=123
will return the blog.
See https://core.trac.wordpress.org/ticket/25143 and https://wordpress.org/support/topic/adding-query-var-makes-front-page-missing/ for more info on this.
What you can do (if you're not attempting to affect the query) is use add_rewrite_endpoint()
. It should be run during the init
action as it affects the rewrite rules. Eg.
add_action( 'init', 'add_custom_setcookie_rewrite_endpoints' );
function add_custom_setcookie_rewrite_endpoints() {
//add ?c=123 endpoint with
//EP_ALL so endpoint is present across all places
//no effect on the query vars
add_rewrite_endpoint( 'c', EP_ALL, $query_vars = false );
}
This should give you access to $_GET['c']
when the url contains more information like www.example.com/news?c=123
.
Remember to flush your rewrite rules after adding/modifying this.
I think an example of the case that has caught me by surprise is relevant:
var myObject = { name: "Cody", status: "Surprised" };
for (var propertyName in myObject) {
document.writeln( propertyName + " : " + myObject[propertyName] );
}
But to my surprise, the output is
name : Cody
status : Surprised
forEach : function (obj, callback) {
for (prop in obj) {
if (obj.hasOwnProperty(prop) && typeof obj[prop] !== "function") {
callback(prop);
}
}
}
Why? Another script on the page has extended the Object prototype:
Object.prototype.forEach = function (obj, callback) {
for ( prop in obj ) {
if ( obj.hasOwnProperty( prop ) && typeof obj[prop] !== "function" ) {
callback( prop );
}
}
};
If both database on same server. You can check similar tables by using following query :
select
fdb.name, sdb.name
from
FIRSTDBNAME.sys.tables fdb
join SECONDDBNAME.sys.tables sdb
on fdb.name = sdb.name -- compare same name tables
order by
1
By listing out similar table you can compare columns schema using sys.columns
view.
Hope this helps you.
This will work from JS without coupling to HTML:
document.getElementById("click-button").onclick = onClickFunction;
function onClickFunction()
{
return functionWithArguments('You clicked the button!');
}
function functionWithArguments(text) {
document.getElementById("some-div").innerText = text;
}
Yes -- use math.nan
.
>>> from math import nan
>>> print(nan)
nan
>>> print(nan + 2)
nan
>>> nan == nan
False
>>> import math
>>> math.isnan(nan)
True
Before Python 3.5, one could use float("nan")
(case insensitive).
Note that checking to see if two things that are NaN are equal to one another will always return false. This is in part because two things that are "not a number" cannot (strictly speaking) be said to be equal to one another -- see What is the rationale for all comparisons returning false for IEEE754 NaN values? for more details and information.
Instead, use math.isnan(...)
if you need to determine if a value is NaN or not.
Furthermore, the exact semantics of the ==
operation on NaN value may cause subtle issues when trying to store NaN inside container types such as list
or dict
(or when using custom container types). See Checking for NaN presence in a container for more details.
You can also construct NaN numbers using Python's decimal module:
>>> from decimal import Decimal
>>> b = Decimal('nan')
>>> print(b)
NaN
>>> print(repr(b))
Decimal('NaN')
>>>
>>> Decimal(float('nan'))
Decimal('NaN')
>>>
>>> import math
>>> math.isnan(b)
True
math.isnan(...)
will also work with Decimal objects.
However, you cannot construct NaN numbers in Python's fractions module:
>>> from fractions import Fraction
>>> Fraction('nan')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "C:\Python35\lib\fractions.py", line 146, in __new__
numerator)
ValueError: Invalid literal for Fraction: 'nan'
>>>
>>> Fraction(float('nan'))
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "C:\Python35\lib\fractions.py", line 130, in __new__
value = Fraction.from_float(numerator)
File "C:\Python35\lib\fractions.py", line 214, in from_float
raise ValueError("Cannot convert %r to %s." % (f, cls.__name__))
ValueError: Cannot convert nan to Fraction.
Incidentally, you can also do float('Inf')
, Decimal('Inf')
, or math.inf
(3.5+) to assign infinite numbers. (And also see math.isinf(...)
)
However doing Fraction('Inf')
or Fraction(float('inf'))
isn't permitted and will throw an exception, just like NaN.
If you want a quick and easy way to check if a number is neither NaN nor infinite, you can use math.isfinite(...)
as of Python 3.2+.
If you want to do similar checks with complex numbers, the cmath
module contains a similar set of functions and constants as the math
module:
cmath.isnan(...)
cmath.isinf(...)
cmath.isfinite(...)
(Python 3.2+)cmath.nan
(Python 3.6+; equivalent to complex(float('nan'), 0.0)
)cmath.nanj
(Python 3.6+; equivalent to complex(0.0, float('nan'))
)cmath.inf
(Python 3.6+; equivalent to complex(float('inf'), 0.0)
)cmath.infj
(Python 3.6+; equivalent to complex(0.0, float('inf'))
) public static void main(String[] args) {
long a = 1111;
Long b = 1113L;
if(a == b.longValue())
{
System.out.println("Equals");
}else{
System.out.println("not equals");
}
}
or:
public static void main(String[] args) {
long a = 1111;
Long b = 1113L;
if(a == b)
{
System.out.println("Equals");
}else{
System.out.println("not equals");
}
}
The default is to return the original, unaltered document. If you want the new, updated document to be returned you have to pass an additional argument: an object with the new
property set to true
.
From the mongoose docs:
Query#findOneAndUpdate
Model.findOneAndUpdate(conditions, update, options, (error, doc) => { // error: any errors that occurred // doc: the document before updates are applied if `new: false`, or after updates if `new = true` });
Available options
new
: bool - if true, return the modified document rather than the original. defaults to false (changed in 4.0)
Pass {new: true}
if you want the updated result in the doc
variable:
// V--- THIS WAS ADDED
Cat.findOneAndUpdate({age: 17}, {$set:{name:"Naomi"}}, {new: true}, (err, doc) => {
if (err) {
console.log("Something wrong when updating data!");
}
console.log(doc);
});
Why not use the Bootstrap predefined class input-block-level
that does the job?
<a href="#" class="btn input-block-level">Full-Width Button</a> <!-- BS2 -->
<a href="#" class="btn form-control">Full-Width Button</a> <!-- BS3 -->
<!-- And let's join both for BS# :) -->
<a href="#" class="btn input-block-level form-control">Full-Width Button</a>
Learn more here in the Control Sizing^ section.
export default
affects the syntax when importing the exported "thing", when allowing to import, whatever has been exported, by choosing the name in the import
itself, no matter what was the name when it was exported, simply because it's marked as the "default".
A useful use case, which I like (and use), is allowing to export an anonymous function without explicitly having to name it, and only when that function is imported, it must be given a name:
default
:export function divide( x ){
return x / 2;
}
// only one 'default' function may be exported and the rest (above) must be named
export default function( x ){ // <---- declared as a default function
return x * x;
}
default
one:// The default function should be the first to import (and named whatever)
import square, {divide} from './module_1.js'; // I named the default "square"
console.log( square(2), divide(2) ); // 4, 1
When the {}
syntax is used to import a function (or variable) it means that whatever is imported was already named when exported, so one must import it by the exact same name, or else the import wouldn't work.
The default function must be first to import
import {divide}, square from './module_1.js
divide_1
was not exported in module_1.js
, thus nothing will be imported
import {divide_1} from './module_1.js
square
was not exported in module_1.js
, because {}
tells the engine to explicitly search for named exports only.
import {square} from './module_1.js
You could use built-in numpy function:
np.linalg.norm(a, axis = 1, keepdims = True)
This is an option:
dbContext.Entry(entity).State = EntityState.Detached;
mysql 5.6 docs say that CURRENT_TIMESTAMP can be used as default for both TIMESTAMP and DATETIME data types:
http://dev.mysql.com/doc/refman/5.6/en/timestamp-initialization.html
The code for specific digits after decimals is:
var a = 1.543240952039
var roundedString = String(format: "%.3f", a)
Here the %.3f tells the swift to make this number rounded to 3 decimal places.and if you want double number, you may use this code:
// String to Double
var roundedString = Double(String(format: "%.3f", b))
You are implementing the Click Handler rather than Select Handler. A List by default doesn't suppose to have selection.
What you should change, in your above example, is to
public void onItemClick(AdapterView<?> adapter, View v, int position, long id) {
MyClass item = (MyClass) adapter.getItem(position);
}
Let's start with the uncomfortable truth: GWT compiler performance is really lousy. You can use some hacks here and there, but you're not going to get significantly better performance.
A nice performance hack you can do is to compile for only specific browsers, by inserting the following line in your gwt.xml
:
<define-property name="user.agent" values="ie6,gecko,gecko1_8"></define-property>
or in gwt 2.x syntax, and for one browser only:
<set-property name="user.agent" value="gecko1_8"/>
This, for example, will compile your application for IE and FF only. If you know you are using only a specific browser for testing, you can use this little hack.
Another option: if you are using several locales, and again using only one for testing, you can comment them all out so that GWT will use the default locale, this shaves off some additional overhead from compile time.
Bottom line: you're not going to get order-of-magnitude increase in compiler performance, but taking several relaxations, you can shave off a few minutes here and there.
There's a key difference between a null
array and an empty array. This is a test for null
.
int arr[] = null;
if (arr == null) {
System.out.println("array is null");
}
"Empty" here has no official meaning. I'm choosing to define empty as having 0 elements:
arr = new int[0];
if (arr.length == 0) {
System.out.println("array is empty");
}
An alternative definition of "empty" is if all the elements are null
:
Object arr[] = new Object[10];
boolean empty = true;
for (int i=0; i<arr.length; i++) {
if (arr[i] != null) {
empty = false;
break;
}
}
or
Object arr[] = new Object[10];
boolean empty = true;
for (Object ob : arr) {
if (ob != null) {
empty = false;
break;
}
}
If anyone comes looking to create a similar JSON, just without using cart
as an array, here goes:
I have an array of objects myArr
as:
var myArr = [{resourceType:"myRT",
id: 1,
value:"ha"},
{resourceType:"myRT",
id: 2,
value:"he"},
{resourceType:"myRT",
id: 3,
value:"Li"}];
and I will attempt to create a JSON with the following structure:
{
"1":{"resourceType":"myRT","id":"1","value":"ha"},
"2":{"resourceType":"myRT","id":"2","value":"he"},
"3":{"resourceType":"myRT","id":"3","value":"Li"}
}
you can simply do-
var cart = {};
myArr.map(function(myObj){
cart[myObj.id]= myObj;
});
Another way to refresh the current page using selenium in Java.
//first: get the current URL in a String variable
String currentURL = driver.getCurrentUrl();
//second: call the current URL
driver.get(currentURL);
Using this will refresh the current page like clicking the address bar of the browser and pressing enter.
you can simply use :
error_log("your message");
By default, the message will be send to the php system logger.
Considering a part of a Comment made by @SSilk my end goal has really been to get everything to the right of that last occurence an alternative approach with a very simple formula is to copy a column (say A
) of strings and on the copy (say ColumnB) apply Find and Replace. For instance taking the example: Drive:\Folder\SubFolder\Filename.ext
This returns what remains (here Filename.ext
) after the last instance of whatever character is chosen (here \
) which is sometimes the objective anyway and facilitates finding the position of the last such character with a short formula such as:
=FIND(B1,A1)-1
When we use an array, we are really using a pointer to the first element in the array. Hence, this condition if( iar1 == iar2 )
actually compares two addresses. Those pointers do not address the same object.
I have something like the following
function initMap()
{
//...create new map here
var infowindow;
$('.business').each(function(el){
//...get lat/lng
var position = new google.maps.LatLng(lat, lng);
var content = "contents go here";
var title = "titleText";
var openWindowFn;
var closure = function(content, position){.
openWindowFn = function()
{
if (infowindow)
{
infowindow.close();
}
infowindow = new google.maps.InfoWindow({
position:position,
content:content
});
infowindow.open(map, marker);
}
}(content, position);
var marker = new google.maps.Marker({
position:position,
map:map,
title:title.
});
google.maps.event.addListener(marker, 'click', openWindowFn);
}
}
In my understanding, using a closure like that allows the capturing of variables and their values at the time of function declaration, rather than relying on global variables. So when openWindowFn
is called later, on the first marker for example, the content
and position
variable have the values they did during the first iteration in the each()
function.
I'm not really sure how openWindowFn
has infowindow
in its scope. I'm also not sure I'm doing things right, but it works, even with multiple maps on one page (each map gets one open infowindow).
If anyone has any insights, please comment.
Don't even call them DTOs. They're called Models....Period. Models never have behavior. I don't know who came up with this dumb term DTO but it must be a .NET thing is all I can figure. Think of view models in MVC, same dam** thing, models are used to transfer state between layers server side or over the wire period, they are all models. Properties with data. These are models you pass ove the wire. Models, Models Models. That's it.
I wish the stupid term DTO would go away from our vocabulary.
Set the minOccurs
attribute to 0
in the schema like so:
<?xml version="1.0"?>
<xs:schema version="1.0" xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified">
<xs:element name="request">
<xs:complexType>
<xs:sequence>
<xs:element name="amenity">
<xs:complexType>
<xs:sequence>
<xs:element name="description" type="xs:string" minOccurs="0" />
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:complexType>
</xs:element> </xs:schema>
One thing I would add here is that the at
function on a dataframe is much faster particularly if you are doing a lot of assignments of individual (not slice) values.
df.at[index, 'col_name'] = x
In my experience I have gotten a 20x speedup. Here is a write up that is Spanish but still gives an impression of what's going on.
MySQL queries are not case-sensitive by default. Following is a simple query that is looking for 'value'. However it will return 'VALUE', 'value', 'VaLuE', etc…
SELECT * FROM `table` WHERE `column` = 'value'
The good news is that if you need to make a case-sensitive query, it is very easy to do using the BINARY
operator, which forces a byte by byte comparison:
SELECT * FROM `table` WHERE BINARY `column` = 'value'
There is no easy way to return the DDL. However you can get most of the details from Information Schema Views and System Views.
SELECT ORDINAL_POSITION, COLUMN_NAME, DATA_TYPE, CHARACTER_MAXIMUM_LENGTH
, IS_NULLABLE
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_NAME = 'Customers'
SELECT CONSTRAINT_NAME
FROM INFORMATION_SCHEMA.CONSTRAINT_TABLE_USAGE
WHERE TABLE_NAME = 'Customers'
SELECT name, type_desc, is_unique, is_primary_key
FROM sys.indexes
WHERE [object_id] = OBJECT_ID('dbo.Customers')
This is my basic understanding. It may well be wrong!
$watch
method.$apply
method.$apply
the $digest
method is invoked which goes
through each of the watches and checks to see if they changed since
last time the $digest
ran.In normal development, data-binding syntax in the HTML tells the AngularJS compiler to create the watches for you and controller methods are run inside $apply
already. So to the application developer it is all transparent.
I encountered a similar problem but a complex one and since this is the first thread i found regarding that issue i decided to post my finding. i know it is complex solution to a simple problem but i hope that i could help other people who go to this thread looking for a more complex solution. i had to split a string containing 5 numbers (column name: levelsFeed) and to show each number in a separate column. for example: 8,1,2,2,2 should be shown as :
1 2 3 4 5
-------------
8 1 2 2 2
Solution 1: using XML functions: this solution for the slowest solution by far
SELECT Distinct FeedbackID,
, S.a.value('(/H/r)[1]', 'INT') AS level1
, S.a.value('(/H/r)[2]', 'INT') AS level2
, S.a.value('(/H/r)[3]', 'INT') AS level3
, S.a.value('(/H/r)[4]', 'INT') AS level4
, S.a.value('(/H/r)[5]', 'INT') AS level5
FROM (
SELECT *,CAST (N'<H><r>' + REPLACE(levelsFeed, ',', '</r><r>') + '</r> </H>' AS XML) AS [vals]
FROM Feedbacks
) as d
CROSS APPLY d.[vals].nodes('/H/r') S(a)
Solution 2: using Split function and pivot. (the split function split a string to rows with the column name Data)
SELECT FeedbackID, [1],[2],[3],[4],[5]
FROM (
SELECT *, ROW_NUMBER() OVER (PARTITION BY feedbackID ORDER BY (SELECT null)) as rn
FROM (
SELECT FeedbackID, levelsFeed
FROM Feedbacks
) as a
CROSS APPLY dbo.Split(levelsFeed, ',')
) as SourceTable
PIVOT
(
MAX(data)
FOR rn IN ([1],[2],[3],[4],[5])
)as pivotTable
Solution 3: using string manipulations functions - fastest by small margin over solution 2
SELECT FeedbackID,
SUBSTRING(levelsFeed,0,CHARINDEX(',',levelsFeed)) AS level1,
PARSENAME(REPLACE(SUBSTRING(levelsFeed,CHARINDEX(',',levelsFeed)+1,LEN(levelsFeed)),',','.'),4) AS level2,
PARSENAME(REPLACE(SUBSTRING(levelsFeed,CHARINDEX(',',levelsFeed)+1,LEN(levelsFeed)),',','.'),3) AS level3,
PARSENAME(REPLACE(SUBSTRING(levelsFeed,CHARINDEX(',',levelsFeed)+1,LEN(levelsFeed)),',','.'),2) AS level4,
PARSENAME(REPLACE(SUBSTRING(levelsFeed,CHARINDEX(',',levelsFeed)+1,LEN(levelsFeed)),',','.'),1) AS level5
FROM Feedbacks
since the levelsFeed contains 5 string values i needed to use the substring function for the first string.
i hope that my solution will help other that got to this thread looking for a more complex split to columns methods
POJO stands for Plain Old Java Object, and would be used to describe the same things as a "Normal Class" whereas a JavaBean follows a set of rules. Most commonly Beans use getters and setters to protect their member variables, which are typically set to private and have a no-argument public constructor. Wikipedia has a pretty good rundown of JavaBeans: http://en.wikipedia.org/wiki/JavaBeans
POJO is usually used to describe a class that doesn't need to be a subclass of anything, or implement specific interfaces, or follow a specific pattern.
In MySQL
:
SELECT *
FROM mytable
WHERE record_date >= NOW() - INTERVAL 1 DAY
In SQL Server
:
SELECT *
FROM mytable
WHERE record_date >= DATEADD(day, -1, GETDATE())
In Oracle
:
SELECT *
FROM mytable
WHERE record_date >= SYSDATE - 1
In PostgreSQL
:
SELECT *
FROM mytable
WHERE record_date >= NOW() - '1 day'::INTERVAL
In Redshift
:
SELECT *
FROM mytable
WHERE record_date >= GETDATE() - '1 day'::INTERVAL
In SQLite
:
SELECT *
FROM mytable
WHERE record_date >= datetime('now','-1 day')
In MS Access
:
SELECT *
FROM mytable
WHERE record_date >= (Now - 1)
You might like to read this - http://dev.mysql.com/doc/refman/5.0/en/gone-away.html - that very well explains the reasons and fixes for "lost connection during query" scenarios.
In your case, it might be because of the max allowed packet size as pointed by Augusto. Or if you've verified it isn't the case, then it might be the connection wait timeout setting due to which the client is losing connection. However, I do not think latter is true here because it's a CSV file and not containing queries.
if linux
if install by apt-get
service memcached stop
service memcached restart
if install by source code
Usage: /etc/init.d/memcached {start|stop|restart|force-reload|status}
can also simply kill $pid to stop
This means the project folder is already a netbeans project. So instead of adding it as a new project open it as
Works for any number from 0 to 999999999.
This program gets a number from the user, divides it into three parts and stores them separately in an array. The three numbers are passed through a function that convert them into words. Then it adds "million" to the first part and "thousand" to the second part.
#include <iostream>
using namespace std;
int buffer = 0, partFunc[3] = {0, 0, 0}, part[3] = {0, 0, 0}, a, b, c, d;
long input, nFake = 0;
const char ones[][20] = {"", "one", "two", "three",
"four", "five", "six", "seven",
"eight", "nine", "ten", "eleven",
"twelve", "thirteen", "fourteen", "fifteen",
"sixteen", "seventeen", "eighteen", "nineteen"};
const char tens[][20] = {"", "ten", "twenty", "thirty", "forty",
"fifty", "sixty", "seventy", "eighty", "ninety"};
void convert(int funcVar);
int main() {
cout << "Enter the number:";
cin >> input;
nFake = input;
buffer = 0;
while (nFake) {
part[buffer] = nFake % 1000;
nFake /= 1000;
buffer++;
}
if (buffer == 0) {
cout << "Zero.";
} else if (buffer == 1) {
convert(part[0]);
} else if (buffer == 2) {
convert(part[1]);
cout << " thousand,";
convert(part[0]);
} else {
convert(part[2]);
cout << " million,";
if (part[1]) {
convert(part[1]);
cout << " thousand,";
} else {
cout << "";
}
convert(part[0]);
}
system("pause");
return (0);
}
void convert(int funcVar) {
buffer = 0;
if (funcVar >= 100) {
a = funcVar / 100;
b = funcVar % 100;
if (b)
cout << " " << ones[a] << " hundred and";
else
cout << " " << ones[a] << " hundred ";
if (b < 20)
cout << " " << ones[b];
else {
c = b / 10;
cout << " " << tens[c];
d = b % 10;
cout << " " << ones[d];
}
} else {
b = funcVar;
if (b < 20)
cout << ones[b];
else {
c = b / 10;
cout << tens[c];
d = b % 10;
cout << " " << ones[d];
}
}
}
My Scenario
def example():
cl = [0, 1]
def inner():
#cl = [1, 2] # access this way will throw `reference before assignment`
cl[0] = 1
cl[1] = 2 # these won't
inner()
Setting a height on your body and html of 100% should fix you up. Without a defined height your content is not overflowing, so you will not get the desired behavior.
html, body {
overflow-y:hidden;
height:100%;
}
Following example uses InputBox method to validate user entry to unhide sheets: Important thing here is to use wrap InputBox variable inside StrPtr so it could be compared to '0' when user chose to click 'x' icon on the InputBox.
Sub unhidesheet()
Dim ws As Worksheet
Dim pw As String
pw = InputBox("Enter Password to Unhide Sheets:", "Unhide Data Sheets")
If StrPtr(pw) = 0 Then
Exit Sub
ElseIf pw = NullString Then
Exit Sub
ElseIf pw = 123456 Then
For Each ws In ThisWorkbook.Worksheets
ws.Visible = xlSheetVisible
Next
End If
End Sub
The definition of asarray
is:
def asarray(a, dtype=None, order=None):
return array(a, dtype, copy=False, order=order)
So it is like array
, except it has fewer options, and copy=False
. array
has copy=True
by default.
The main difference is that array
(by default) will make a copy of the object, while asarray
will not unless necessary.
In the Node REPL, to get a DB connection that was the value of a promise, I took the following approach:
let connection
try {
(async () => {
connection = await returnsAPromiseResolvingToConnection()
})()
} catch(err) {
console.log(err)
}
The line with await
would normally return a promise. This code can be pasted into the Node REPL or if saved in index.js
it can be run in Bash with
node -i -e "$(< index.js)"
which leaves you in the Node REPL after running the script with access to the set variable. To confirm that the asynchronous function has returned, you can log connection
for example, and then you're ready to use the variable. One of course wouldn't want to count on the asynchronous function being resolved yet for any code in the script outside the asynchronous function.
Without more details as to what the question is exactly asking, I am going to answer the title of the question,
Create an Array
:
String[] myArray = new String[2];
int[] intArray = new int[2];
// or can be declared as follows
String[] myArray = {"this", "is", "my", "array"};
int[] intArray = {1,2,3,4};
Create an ArrayList
:
ArrayList<String> myList = new ArrayList<String>();
myList.add("Hello");
myList.add("World");
ArrayList<Integer> myNum = new ArrayList<Integer>();
myNum.add(1);
myNum.add(2);
This means, create an ArrayList
of String
and Integer
objects. You cannot use int
because thats a primitive data types, see the link for a list of primitive data types.
Create a Stack
:
Stack myStack = new Stack();
// add any type of elements (String, int, etc..)
myStack.push("Hello");
myStack.push(1);
Create an Queue
: (using LinkedList)
Queue<String> myQueue = new LinkedList<String>();
Queue<Integer> myNumbers = new LinkedList<Integer>();
myQueue.add("Hello");
myQueue.add("World");
myNumbers.add(1);
myNumbers.add(2);
Same thing as an ArrayList
, this declaration means create an Queue
of String
and Integer
objects.
In response to your comment from the other given answer,
i am pretty confused now, why are using string. and what does
<String>
means
We are using String
only as a pure example, but you can add any other object, but the main point is that you use an object not a primitive type. Each primitive data type has their own primitive wrapper class, see link for list of primitive data type's wrapper class.
I have posted some links to explain the difference between the two, but here are a list of primitive types
byte
short
char
int
long
boolean
double
float
Which means, you are not allowed to make an ArrayList
of integer's like so:
ArrayList<int> numbers = new ArrayList<int>();
^ should be an object, int is not an object, but Integer is!
ArrayList<Integer> numbers = new ArrayList<Integer>();
^ perfectly valid
Also, you can use your own objects, here is my Monster
object I created,
public class Monster {
String name = null;
String location = null;
int age = 0;
public Monster(String name, String loc, int age) {
this.name = name;
this.loc = location;
this.age = age;
}
public void printDetails() {
System.out.println(name + " is from " + location +
" and is " + age + " old.");
}
}
Here we have a Monster
object, but now in our Main.java
class we want to keep a record of all our Monster
's that we create, so let's add them to an ArrayList
public class Main {
ArrayList<Monster> myMonsters = new ArrayList<Monster>();
public Main() {
Monster yetti = new Monster("Yetti", "The Mountains", 77);
Monster lochness = new Monster("Lochness Monster", "Scotland", 20);
myMonsters.add(yetti); // <-- added Yetti to our list
myMonsters.add(lochness); // <--added Lochness to our list
for (Monster m : myMonsters) {
m.printDetails();
}
}
public static void main(String[] args) {
new Main();
}
}
(I helped my girlfriend's brother with a Java game, and he had to do something along those lines as well, but I hope the example was well demonstrated)
you just need to get the absolute-path of the file, since the file you are looking for doesnt exist in the eclipse's runtime workspace you can use - getProperty() or getLocationURI() methods to get the absolute-path of the file
You can specify any amount of URLs on the command line. They will be fetched in a sequential manner in the specified order.
It is all explained by the javadoc for the constructor. It is a convenience constructor that populates the model with one attribute / value pair.
So ...
new ModelAndView(view, name, value);
is equivalent to:
Map model = ...
model.put(name, value);
new ModelAndView(view, model);
There is a better algorithm, which needs at most 6 iterations to converge to maximum precision for double numbers:
#include <math.h>
double sqrt(double x) {
if (x <= 0)
return 0; // if negative number throw an exception?
int exp = 0;
x = frexp(x, &exp); // extract binary exponent from x
if (exp & 1) { // we want exponent to be even
exp--;
x *= 2;
}
double y = (1+x)/2; // first approximation
double z = 0;
while (y != z) { // yes, we CAN compare doubles here!
z = y;
y = (y + x/y) / 2;
}
return ldexp(y, exp/2); // multiply answer by 2^(exp/2)
}
Algorithm starts with 1 as first approximation for square root value.
Then, on each step, it improves next approximation by taking average between current value y
and x/y
. If y
= sqrt(x)
, it will be the same. If y
> sqrt(x)
, then x/y
< sqrt(x)
by about the same amount. In other words, it will converge very fast.
UPDATE: To speed up convergence on very large or very small numbers, changed sqrt()
function to extract binary exponent and compute square root from number in [1, 4)
range. It now needs frexp()
from <math.h>
to get binary exponent, but it is possible to get this exponent by extracting bits from IEEE-754 number format without using frexp()
.
After reading all comments and answers I am going to explain an optimal solution for this problem. The best option is @rik's solution, so my improvement is base on his.
Instead of having to ask each FragmentClass like
if(FragmentClass1){
...
if(FragmentClass2){
...
}
Create your own interface, and maker your child fragments implement it, something like
public interface MyChildFragment {
void updateView(int position);
}
Then, you can do something like this to initiate and update your inner fragments.
Fragment childFragment = (Fragment) mViewPagerDetailsAdapter.instantiateItem(mViewPager,mViewPager.getCurrentItem());
if (childFragment != null) {
((MyChildFragment) childFragment).updateView();
}
P.S. Be careful where you put that code, if you call insatiateItem before the system actually create it the savedInstanceState
of your child fragment will be null therefor
public void onCreate(@Nullable Bundle savedInstanceState){
super(savedInstanceState)
}
Will crash your app.
Good luck
I'm using 960.gs for layout so my solution is as follows:
$(window).bind(
'resize',
function() {
// Grid ids we are using
$("#demogr, #allergygr, #problemsgr, #diagnosesgr, #medicalhisgr").setGridWidth(
$(".grid_5").width());
$("#clinteamgr, #procedgr").setGridWidth(
$(".grid_10").width());
}).trigger('resize');
// Here we set a global options
jQuery.extend(jQuery.jgrid.defaults, {
// altRows:true,
autowidth : true,
beforeSelectRow : function(rowid, e) { // disable row highlighting onclick
return false;
},
datatype : "jsonstring",
datastr : grdata, // JSON object generated by another function
gridview : false,
height : '100%',
hoverrows : false,
loadonce : true,
sortable : false,
jsonReader : {
repeatitems : false
}
});
// Demographics Grid
$("#demogr").jqGrid( {
caption : "Demographics",
colNames : [ 'Info', 'Data' ],
colModel : [ {
name : 'Info',
width : "30%",
sortable : false,
jsonmap : 'ITEM'
}, {
name : 'Description',
width : "70%",
sortable : false,
jsonmap : 'DESCRIPTION'
} ],
jsonReader : {
root : "DEMOGRAPHICS",
id : "DEMOID"
}
});
// Other grids defined below...
Made Simple with XML only
res/anim/layout_animation.xml
<?xml version="1.0" encoding="utf-8"?>
<layoutAnimation xmlns:android="http://schemas.android.com/apk/res/android"
android:animation="@anim/item_animation_fall_down"
android:animationOrder="normal"
android:delay="15%" />
res/anim/item_animation_fall_down.xml
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:duration="500">
<translate
android:fromYDelta="-20%"
android:toYDelta="0"
android:interpolator="@android:anim/decelerate_interpolator"
/>
<alpha
android:fromAlpha="0"
android:toAlpha="1"
android:interpolator="@android:anim/decelerate_interpolator"
/>
<scale
android:fromXScale="105%"
android:fromYScale="105%"
android:toXScale="100%"
android:toYScale="100%"
android:pivotX="50%"
android:pivotY="50%"
android:interpolator="@android:anim/decelerate_interpolator"
/>
</set>
Use in layouts and recylcerview like:
<androidx.recyclerview.widget.RecyclerView
android:id="@+id/recycler_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layoutAnimation="@anim/layout_animation"
app:layout_behavior="@string/appbar_scrolling_view_behavior" />
myApp.directive("clickme",function(){
return function(scope,element,attrs){
element.bind("mousedown",function(){
<<call the Controller function>>
scope.loadEditfrm(attrs.edtbtn);
});
};
});
this will act as onclick events on the attribute clickme
You cannot assign expressions with types such as List<NavigableMap<String,String>>
to the first.
(If you want to know why you can't assign List<String>
to List<Object>
see a zillion other questions on SO.)
Setting async to false means the instructions following the ajax request will have to wait for the request to complete. Below is one case where one have to set async to false, for the code to work properly.
var phpData = (function get_php_data() {
var php_data;
$.ajax({
url: "http://somesite/v1/api/get_php_data",
async: false,
//very important: else php_data will be returned even before we get Json from the url
dataType: 'json',
success: function (json) {
php_data = json;
}
});
return php_data;
})();
Above example clearly explains the usage of async:false
By setting it to false, we have made sure that once the data is retreived from the url ,only after that return php_data; is called
Below steps helped me fix this.
rm -rf env-name
python3 -m venv env-aide
A tool that helps me a lot to debug ElasticSearch is ElasticHQ. Basically, it is an HTML file with some JavaScript. No need to install anywhere, let alone in ES itself: just download it, unzip int and open the HTML file with a browser.
Not sure it is the best tool for ES heavy users. Yet, it is really practical to whoever is in a hurry to see the entries.
You can create a local computer policy on Windows. See the TechNet at http://technet.microsoft.com/en-us/magazine/dd630947
gpedit.msc
to open the Group Policy Editor,this is a simple alternative that gives all responses, Fullname, Path, filename.
Dim FilePath, FileOnly, PathOnly As String
FilePath = ThisWorkbook.FullName
FileOnly = ThisWorkbook.Name
PathOnly = Left(FilePath, Len(FilePath) - Len(FileOnly))
Strong pattern matching — This is the method that I use here at Perishable Press. Using strong pattern matching, this technique prevents external access to any file containing “.hta”, “.HTA”, or any case-insensitive combination thereof. To illustrate, this code will prevent access through any of the following requests:
..etc., etc. Clearly, this method is highly effective at securing your site’s HTAccess files. Further, this technique also includes the fortifying “Satisfy All” directive. Note that this code should be placed in your domain’s root HTAccess file:
# STRONG HTACCESS PROTECTION
<Files ~ "^.*\.([Hh][Tt][Aa])">
order allow,deny
deny from all
satisfy all
</Files>
There are only 4 kinds:
NULL
for each value in the table on the right. This means that every row from the table on the left will appear at least once in the output. A "cross join" or "cartesian join" is simply an inner join for which no join conditions have been specified, resulting in all pairs of rows being output.
Thanks to RusselH for pointing out FULL joins, which I'd omitted.
To turn off highlighting until the next search:
:noh
Or turn off highlighting completely:
set nohlsearch
Or, to toggle it:
set hlsearch!
nnoremap <F3> :set hlsearch!<CR>
This worked for me. Might want to try editing virtual machine settings:
See the String method trim()
- https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/String/Trim
var myString = ' bunch of <br> string data with<p>trailing</p> and leading space ';
myString = myString.trim();
// or myString = String.trim(myString);
Edit
As noted in other comments, it is possible to use the regex approach. The trim
method is effectively just an alias for a regex:
if(!String.prototype.trim) {
String.prototype.trim = function () {
return this.replace(/^\s+|\s+$/g,'');
};
}
... this will inject the method into the native prototype for those browsers who are still swimming in the shallow end of the pool.
After working all day on this, I finally found a solution. Here's how I send from Windows XP with WAMP.
<?php $message = "test message body"; $result = mail('[email protected]', 'message subject', $message); echo "result: $result"; ?>
Reference:
Did find the answer on my own. My problem was, that i use two temporary tables for a join and create the second one out of the first one. But the Index was not copied during creation...
CREATE TEMPORARY TABLE tmpLivecheck (tmpid INTEGER NOT NULL AUTO_INCREMENT, PRIMARY
KEY(tmpid), INDEX(tmpid))
SELECT * FROM tblLivecheck_copy WHERE tblLivecheck_copy.devId = did;
CREATE TEMPORARY TABLE tmpLiveCheck2 (tmpid INTEGER NOT NULL, PRIMARY KEY(tmpid),
INDEX(tmpid))
SELECT * FROM tmpLivecheck;
... solved my problem.
Greetings...
If I understand your problem well you want the following things:
Unfortunately there is no ultimate solution for what you want, but there are some things by which you can make your life easier.
First you should decide one important thing: do you want to store for every version in your project repository a reference to the version of the media files? So for example if you have a project called example.com, do you need know which style.css it used 2 weeks ago, or the latest is always (or mostly) the best?
If you don't need to know that, the solution is easy:
In most of the cases, however, you want to know this versioning information. In this case you have two choices:
Store every project in one big repository. The advantage of this solution is that you will have only 1 copy of the media repository. The big disadvantage is that it is much harder to switch between project versions (if you checkout to a different version you will always modify ALL projects)
Use submodules (as explained in answer 1). This way you will store the media files in one repository, and the projects will contain only a reference to a specific media repo version. But this way you will normally have many local copies of the media repository, and you cannot easily modify a media file in all projects.
If I were you I would probably choose the first or third solution (symbolic links or submodules). If you choose to use submodules you can still do a lot of things to make your life easier:
Before committing you can rename the submodule directory and put a symlink to a common media directory. When you're ready to commit, you can remove the symlink and remove the submodule back, and then commit.
You can add one of your copy of the media repository as a remote repository to all of your projects.
You can add local directories as a remote this way:
cd /my/project2/media
git remote add project1 /my/project1/media
If you modify a file in /my/project1/media, you can commit it and pull it from /my/project2/media without pushing it to a remote server:
cd /my/project1/media
git commit -a -m "message"
cd /my/project2/media
git pull project1 master
You are free to remove these commits later (with git reset) because you haven't shared them with other users.
The printf
command will print the complete strings:
(gdb) printf "%s\n", string
In my case MySQL sever was not running. I restarted the MySQL server and issue was resolved.
//on ubuntu server
sudo /etc/init.d/mysql start
To avoid MySQL stop problem, you can use the "initctl" utility in Ubuntu 14.04 LTS Linux to make sure the service restarts in case of a failure or reboot. Please consider talking a snapshot of root volume (with mysql stopped) before performing this operations for data retention purpose[8]. You can use the following commands to manage the mysql service with "initctl" utility with stop and start operations.
$ sudo initctl stop mysql
$ sudo initctl start mysql
To verify the working, you can check the status of the service and get the process id (pid), simulate a failure by killing the "mysql" process and verify its status as running with new process id after sometime (typically within 1 minute) using the following commands.
$ sudo initctl status mysql # get pid
$ sudo kill -9 <pid> # kill mysql process
$ sudo initctl status mysql # verify status as running after sometime
Note : In latest Ubuntu version now initctl is replaced by systemctl
Open IIS Setting in your plesk panel and enter default document name first page of website (deafault values are
Index.html
Index.htm
Index.cfm
Index.shtml
Index.shtm
Index.stm
Index.php
Index.php3
Index.asp
Index.aspx
Default.htm
Default.asp
Default.aspx)
This will work properly
For those who want a summary,
android:minSdkVersion
is minimum version till your application supports. If your device has lower version of android , app will not install.
while,
android:targetSdkVersion
is the API level till which your app is designed to run. Means, your phone's system don't need to use any compatibility behaviours to maintain forward compatibility because you have tested against till this API.
Your app will still run on Android versions higher than given targetSdkVersion
but android compatibility behaviour will kick in.
Freebie -
android:maxSdkVersion
if your device's API version is higher, app will not install. Ie. this is the max API till which you allow your app to install.
ie. for MinSDK -4, maxSDK - 8, targetSDK - 8 My app will work on minimum 1.6 but I also have used features that are supported only in 2.2 which will be visible if it is installed on a 2.2 device. Also, for maxSDK - 8, this app will not install on phones using API > 8.
At the time of writing this answer, Android documentation was not doing a great job at explaining it. Now it is very well explained. Check it here
I'm not sure why you're avoiding the AND clause. It is the simplest solution.
Otherwise, you would need to do an INTERSECT of multiple queries:
SELECT word FROM table WHERE word NOT LIKE '%a%'
INTERSECT
SELECT word FROM table WHERE word NOT LIKE '%b%'
INTERSECT
SELECT word FROM table WHERE word NOT LIKE '%c%';
Alternatively, you can use a regular expression if your version of SQL supports it.
Run
gradlew -q app:dependencies
It will remove what is wrong.
for(n in 1:5) {
if(n==3) next # skip 3rd iteration and go to next iteration
cat(n)
}
The Mono project is your best option. However, it has a lot of pitfalls (like incomplete API support in some areas), and it's legally gray (people like Richard Stallman have derided the use of Mono because of the possibility of Microsoft coming down on Mono by using its patent rights, but that's another story).
Anyway, Apache supports .NET/Mono through a module, but the last time I checked the version supplied with Debian, it gave Perl language support only; I can't say if it's changed since, perhaps someone else can correct me there.
if exist C:\VTS\NUL echo "Folder already exists"
if not exist C:\VTS\NUL echo "Folder does not exist"
See also https://support.microsoft.com/en-us/kb/65994
(Update March 7, 2018; Microsoft article is down, archive on https://web.archive.org/web/20150609092521/https://support.microsoft.com/en-us/kb/65994 )
Another issue could come from the use of backticks, those are not supported by the compiler (uglifier).
To fix it, replace config.assets.js_compressor = :uglifier
with config.assets.js_compressor = Uglifier.new(harmony: true
).
My problem were that we were using spring securyty, and the previous page doesn't call the page using faces-redirect=true, then the page show a java warning, and the control doesn't fire the change event.
Solution: The previous page must call the page using, faces-redirect=true
If you don't want to store table in database then @Evan Todd already has been provided temporary table solution.
But if you need that table for other users and want to store in db then you can use below procedure.
Create below ‘stored procedure’:
————————————
DELIMITER $$
USE `test`$$
DROP PROCEDURE IF EXISTS `sp_variable_table`$$
CREATE DEFINER=`root`@`localhost` PROCEDURE `sp_variable_table`()
BEGIN
SELECT CONCAT(‘zafar_’,REPLACE(TIME(NOW()),’:',’_')) INTO @tbl;
SET @str=CONCAT(“create table “,@tbl,” (pbirfnum BIGINT(20) NOT NULL DEFAULT ’0', paymentModes TEXT ,paymentmodeDetails TEXT ,shippingCharges TEXT ,shippingDetails TEXT ,hypenedSkuCodes TEXT ,skuCodes TEXT ,itemDetails TEXT ,colorDesc TEXT ,size TEXT ,atmDesc TEXT ,promotional TEXT ,productSeqNumber VARCHAR(16) DEFAULT NULL,entity TEXT ,entityDetails TEXT ,kmtnmt TEXT ,rating BIGINT(1) DEFAULT NULL,discount DECIMAL(15,0) DEFAULT NULL,itemStockDetails VARCHAR(38) NOT NULL DEFAULT ”) ENGINE=INNODB DEFAULT CHARSET=utf8");
PREPARE stmt FROM @str;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
SELECT ‘Table has been created’;
END$$
DELIMITER ;
———————————————–
Now you can execute this procedure to create a variable name table as per below-
call sp_variable_table();
You can check new table after executing below command-
use test;show tables like ‘%zafar%’; — test is here ‘database’ name.
You can also check more details at below path-
http://mydbsolutions.in/how-can-create-a-table-with-variable-name/
A string is just a character array so use Linq to do the replace (similar to Albin above except uses a linq contains statement to do the replace):
var resultString = new string(
(from ch in "My name @is ,Wan.;'; Wan"
where ! @"@,.;\'".Contains(ch)
select ch).ToArray());
The first string is the string to replace chars in and the second is a simple string containing the chars
Do you realize, that CLAMP255 returns 0 for v < 0 and 255 for v >= 0?
IMHO, CLAMP255 should be defined as:
#define CLAMP255(v) (v > 255 ? 255 : (v < 0 ? 0 : v))
Difference: If v is not greater than 255 and not less than 0: return v instead of 255
I think you what you want is a tuple. If you use return (i, card)
, you can get these two results by:
i, card = select_choice()
Your example worked for me with MongoDB 1.6.3 and 1.7.3. Example below was for 1.7.3. Are you using an older version of MongoDB?
$ cat > locations.csv
Name,Address,City,State,ZIP
Jane Doe,123 Main St,Whereverville,CA,90210
John Doe,555 Broadway Ave,New York,NY,10010
ctrl-d
$ mongoimport -d mydb -c things --type csv --file locations.csv --headerline
connected to: 127.0.0.1
imported 3 objects
$ mongo
MongoDB shell version: 1.7.3
connecting to: test
> use mydb
switched to db mydb
> db.things.find()
{ "_id" : ObjectId("4d32a36ed63d057130c08fca"), "Name" : "Jane Doe", "Address" : "123 Main St", "City" : "Whereverville", "State" : "CA", "ZIP" : 90210 }
{ "_id" : ObjectId("4d32a36ed63d057130c08fcb"), "Name" : "John Doe", "Address" : "555 Broadway Ave", "City" : "New York", "State" : "NY", "ZIP" : 10010 }
Another way to do it is to use np.prod
shown below:
def factorial(n):
if n == 0:
return 1
else:
return np.prod(np.arange(1,n+1))
What you have can be written easier. Instead of:
#include<iostream>
int main()
{
std::cout<<"Hello, World!\n";
return 0;
}
write
#include<iostream>
int main()
{
std::cout<<"Hello, World!\n";
system("PAUSE");
return 0;
}
The system function executes anything you give it as if it was written in the command prompt. It suspends execution of your program while the command is executing so you can do anything with it, you can even compile programs from your cpp program.
One of the reason may be if any one of table column have an underscore(_) in its name . That is considered as invalid characters by the JDBC . Rename the column by a ALTER Command and change in your code SQL , that will fix .
try unpacking in one variable,
python will handle it as a list,
then unpack from the list
def returnATupleWithThreeValues():
return (1,2,3)
a = returnATupleWithThreeValues() # a is a list (1,2,3)
print a[0] # list[0] = 1
print a[1] # list[1] = 2
print a[2] # list[2] = 3
You can try this
var lastPostDate = reader[3] == DBNull.Value ?
default(DateTime?):
Convert.ToDateTime(reader[3]);
Installing ASP.NET Core Runtime Hosting Bundle solved the issue for me. Source: 500.19 Internal Server Error (0x8007000d)
Opening a file creates it and (unless append ('a') is set) overwrites it with emptyness, such as this:
open(filename, 'w').close()
With something like this:
String mDrawableName = "myappicon";
int resID = getResources().getIdentifier(mDrawableName , "drawable", getPackageName());
For node.js > 6.0.0 there is also the json-schema-by-example module.
Display the row as a block.
tr {
display: block;
border-bottom: 1px solid #000;
}
and to display alternate colors simply:
tr.oddrow {
display: block;
border-bottom: 1px solid #F00;
}
You are looking for the cp
command. You need to change directories so that you are outside of the directory you are trying to copy.
If the directory you're copying is called dir1
and you want to copy it to your /home/Pictures
folder:
cp -r dir1/ ~/Pictures/
Linux is case-sensitive and also needs the /
after each directory to know that it isn't a file. ~
is a special character in the terminal that automatically evaluates to the current user's home directory. If you need to know what directory you are in, use the command pwd
.
When you don't know how to use a Linux command, there is a manual page that you can refer to by typing:
man [insert command here]
at a terminal prompt.
Also, to auto complete long file paths when typing in the terminal, you can hit Tab after you've started typing the path and you will either be presented with choices, or it will insert the remaining part of the path.
If anyone is getting this error using Nginx, try adding the following to your server config:
server {
listen 443 ssl;
...
}
The issue stems from Nginx serving an HTTP server to a client expecting HTTPS on whatever port you're listening on. When you specify ssl
in the listen
directive, you clear this up on the server side.
You can use case-sensitive or case-insensitive comparison, depending what you need. Case-sensitive is like this:
if ([category isEqualToString:@"Some String"])
{
// Both strings are equal without respect to their case.
}
Case-insensitive is like this:
if ([category compare:@"Some String" options:NSCaseInsensitiveSearch] == NSOrderedSame)
{
// Both strings are equal with respect to their case.
}
awk '{awk code}' file | tee file
the tee
command take place and executed after the awk
command is finished due to the |
.
First create the database and table, manually adding the columns. In which column to be primary key. You should right click this column and set primary key and set the seed value of the primary key.
I have a funny hack idea.
Create an npm package name suitably as a comment divider for dependencies
and devDependencies
block in file package.json, for example x----x----x
{
"name": "app-name",
"dependencies": {
"x----x----x": "this is the first line of a comment",
"babel-cli": "6.x.x",
"babel-core": "6.x.x",
"x----x----x": "this is the second line of a comment",
"knex": "^0.11.1",
"mocha": "1.20.1",
"x----x----x": "*"
}
}
NOTE: You must add the last comment divider line with a valid version, like *
in the block.
From the CLI the best way is to use grep
like:
php -i | grep libxml
There is an Ini Parser available in CommonLibrary.NET
This has various very convenient overloads for getting sections/values and is very light weight.
Simple Solution:
JsonElement element = new JsonParser().parse(new InputStreamReader(inputStream));
JSONObject jsonObject = new JSONObject(element.getAsJsonObject().toString());
It seems to depend on the details of the version of od
. On OSX, use this:
od -t x1 -An file |tr -d '\n '
(That's print as type hex bytes, with no address. And whitespace deleted afterwards, of course.)
Another way to check if FB has initialized is by using the following code:
ns.FBInitialized = function () {
return typeof (FB) != 'undefined' && window.fbAsyncInit.hasRun;
};
Thus in your page ready event you could check ns.FBInitialized and defer the event to later phase by using setTimeOut.
Consistency is the key to any naming standard. As long as it's logical and consistent, you're 99% there.
The standard itself is very much personal preference - so if you like your standard, then run with it.
To answer your question outright - no, MySQL doesn't have a preferred naming convention/standard, so rolling your own is fine (and yours seems logical).
Too Long; Don't Read: The difference is whether the source (local) or the destination address/port is being set. In short, bind()
set the source and connect()
set the destination. Regardless of TCP or UDP.
bind()
bind()
set the socket's local (source) address. This is the address where packets are received. Packets sent by the socket carry this as the source address, so the other host will know where to send back its packets.
If receive is not needed the socket source address is useless. Protocols like TCP require receiving enabled in order to send properly, as the destination host send back a confirmation when one or more packets have arrived (i.e. acknowledgement).
connect()
connect()
triggers the TCP code to try to establish a connection to the other side.connect()
only set a default address to where packets are sent when no address is specified. When connect()
is not used, sendto()
or sendmsg()
must be used containing the destination address.When connect()
or a send function is called, and no address is bound, Linux automatically bind the socket to a random port. For technical details, take a look at inet_autobind()
in Linux kernel source code.
This will work:
#div{
max-height:300px;
overflow:hidden;
}
#div:hover{
overflow-y:scroll;
}
Checking the documentation shows that its returns false
on an error. So use the return status rather than or die()
. It will return false if it fails, which you can log (or whatever you want to do) and then continue.
$rv = mysql_query("INSERT INTO redirects SET ua_string = '$ua_string'");
if ( $rv === false ){
//handle the error here
}
//page continues loading
Suspended. The session is waiting for an event, such as I/O, to complete.
To answer the original posters question.... to 'decrypt' the password, you have to do what a password cracker would do.
In other words, you'd run a program to read from a large list of potential passwords (a password dictionary) and you'd hash each one using bcrypt
and the salt and complexity from the password you're trying to decipher. If you're lucky you'll find a match, but if the password is a strong one then you likely won't find a match.
Bcrypt
has the added security characteristic of being a slow hash. If your password had been hashed with md5 (terrible choice) then you'd be able to check billions of passwords per second, but since it's hashed using bcrypt
you will be able to check far fewer per second.
The fact that bcrypt
is slow to hash and salted is what makes it a good choice for password storage even today. That being said I believe NIST
recommends the PBKDF2 for password hashing.
Use max-width
property of CSS, like this :
img{
max-width:100%;
}
For the final, compiled code of your application, the short answer is “no”. Different tools are able to extract different information from the code (e.g. the forms setups) and there are P code decompilers (see Edgar's excellent link for such tools). However, up to this day, there is no decompiler for native code. I'm not aware of anything similar for other high-level languages either.
If you like to set the --no-cache-dir
option by default, you can put this into pip.conf:
[global]
no-cache-dir = false
Note 1: It's confusing, but to enable the no-cache-dir
option you actually have to set it to false
. Pretty silly if you ask me... but that's how it is. There is a github issue to fix this.
Note 2: The location of pip.conf
depends on your OS. See the documentation for more info.