This issue usually appears when one of your variables has no value or when you forget to add "!" to force this variable to store nil until it is set.
In your case the problem is here:
var delegate: AppDelegate
It should be defined as var delegate: AppDelegate!
to make it an optional that stores nil and do not unwrap the variable until the value is used.
It is sad that Xcode highlights the whole class as an error instead of highlighting the particular line of code that caused it, so it takes a while to figure it out.
Aside from the long list of remove commands in your question, which seems quite comprehensive in my recent experience of exactly this issue, I found mysql.sock running in /private/var and removed that. I used
find / -name mysql -print 2> /dev/null
...to find anything that looked like a mysql directory or file and removed most of what came up (aside from Perl/Python access modules). You may also need to check that the daemon is not still running using Activity Monitor (or at the command line using ps -A
). I found that mysqld was still running even after deleting the files.
A very big difference is that ":hover" state is automatically deactivated when the mouse moves out of the element. As a result any styles that are applied on hover are automatically reversed. On the other hand, with the javascript approach, you would have to define both "onmouseover" and "onmouseout" events. If you only define "onmouseover" the styles that are applied "onmouseover" will persist even after you mouse out unless you have explicitly defined "onmouseout".
I recommend you to try Netbeans Profiler.It has rich set of tools for real time analysis. Tools from IbM are worth a try for offline analysis
It's in https://console.firebase.google.com/project/(your-project-id)/settings/cloudmessaging
You can find the API KEY in:
(gear-next-to-project-name) > Project Settings > Cloud Messaging
Server Key is the API key.
If you are using C++ 17 you can just use the inline
specifier (see https://stackoverflow.com/a/11711082/55721)
If using older versions of the C++ standard, you must add the definitions to match your declarations of X and Y
unsigned char test::X;
unsigned char test::Y;
somewhere. You might want to also initialize a static member
unsigned char test::X = 4;
and again, you do that in the definition (usually in a CXX file) not in the declaration (which is often in a .H file)
I add an example,
UNION, it is merging with distinct --> slower, because it need comparing (In Oracle SQL developer, choose query, press F10 to see cost analysis).
UNION ALL, it is merging without distinct --> faster.
SELECT to_date(sysdate, 'yyyy-mm-dd') FROM dual
UNION
SELECT to_date(sysdate, 'yyyy-mm-dd') FROM dual;
and
SELECT to_date(sysdate, 'yyyy-mm-dd') FROM dual
UNION ALL
SELECT to_date(sysdate, 'yyyy-mm-dd') FROM dual;
i say a lot simpler way would be using the break
command, like
import tkinter as tk
win=tk.Tk
def exit():
break
btn= tk.Button(win, text="press to exit", command=exit)
win.mainloop()
OR use sys.exit()
import tkinter as tk
import sys
win=tk.Tk
def exit():
sys.exit
btn= tk.Button(win, text="press to exit", command=exit)
win.mainloop()
I had this error because I registered the wrong class in this line of code:
JAXBContext context = JAXBContext.newInstance(MyRootXmlClass.class);
Instead of doing all these.. cant you use a simpler approach as shown below.
Response.ClearContent();
Response.AddHeader("content-disposition", "attachment; filename=" + strFileName);
Response.ContentType = "application/excel";
System.IO.StringWriter sw = new System.IO.StringWriter();
HtmlTextWriter htw = new HtmlTextWriter(sw);
gv.RenderControl(htw);
Response.Write(sw.ToString());
Response.End();
You can get the entire walkthrough here
We can use substring. Here's the example,
public class RemoveStringChar
{
public static void main(String[] args)
{
String strGiven = "Java";
System.out.println("Before removing string character - " + strGiven);
System.out.println("After removing string character - " + removeCharacter(strGiven, 3));
}
public static String removeCharacter(String strRemove, int position)
{
return strRemove.substring(0, position) + strRemove.substring(position + 1);
}
}
It works on either option tag or text field:
$("#idname option[value='option1']").remove();
@ImportanceOfBeingErnest 's answer is good if you only want to change the linewidth inside the legend box. But I think it is a bit more complex since you have to copy the handles before changing legend linewidth. Besides, it can not change the legend label fontsize. The following two methods can not only change the linewidth but also the legend label text font size in a more concise way.
import numpy as np
import matplotlib.pyplot as plt
# make some data
x = np.linspace(0, 2*np.pi)
y1 = np.sin(x)
y2 = np.cos(x)
# plot sin(x) and cos(x)
fig = plt.figure()
ax = fig.add_subplot(111)
ax.plot(x, y1, c='b', label='y1')
ax.plot(x, y2, c='r', label='y2')
leg = plt.legend()
# get the individual lines inside legend and set line width
for line in leg.get_lines():
line.set_linewidth(4)
# get label texts inside legend and set font size
for text in leg.get_texts():
text.set_fontsize('x-large')
plt.savefig('leg_example')
plt.show()
import numpy as np
import matplotlib.pyplot as plt
# make some data
x = np.linspace(0, 2*np.pi)
y1 = np.sin(x)
y2 = np.cos(x)
# plot sin(x) and cos(x)
fig = plt.figure()
ax = fig.add_subplot(111)
ax.plot(x, y1, c='b', label='y1')
ax.plot(x, y2, c='r', label='y2')
leg = plt.legend()
# get the lines and texts inside legend box
leg_lines = leg.get_lines()
leg_texts = leg.get_texts()
# bulk-set the properties of all lines and texts
plt.setp(leg_lines, linewidth=4)
plt.setp(leg_texts, fontsize='x-large')
plt.savefig('leg_example')
plt.show()
The above two methods produce the same output image:
On windows, you must set a variable to specify proxy settings, download the vagrant-proxyconf plugin: (replace {PROXY_SCHEME}(http:// or https://), {PROXY_IP} and {PROXY_PORT} by the right values)
set http_proxy={PROXY_SCHEME}{PROXY_IP}:{PROXY_PORT}
set https_proxy={PROXY_SCHEME}{PROXY_IP}:{PROXY_PORT}
After that, you can add the plugin to hardcode your proxy settings in the vagrant file
vagrant plugin install vagrant-proxyconf --plugin-source http://rubygems.org
and then you can provide config.proxy.xxx settings in your Vagrantfile to be independent against environment settings variables
See the 'non-fast forward' section of 'git push --help' for details.
You can perform "git pull", resolve potential conflicts, and "git push" the result. A "git pull" will create a merge commit C between commits A and B.
Alternatively, you can rebase your change between X and B on top of A, with "git pull --rebase", and push the result back. The rebase will create a new commit D that builds the change between X and B on top of A.
SELECT * FROM user_cons_columns WHERE table_name = 'table_name';
As mentioned by others, PHP 7 introduces support for the \u
Unicode syntax directly.
As also mentioned by others, the only way to obtain a string value from any sensible Unicode character description in PHP, is by converting it from something else (e.g. JSON parsing, HTML parsing or some other form). But this comes at a run-time performance cost.
However, there is one other option. You can encode the character directly in PHP with \x
binary escaping. The \x
escape syntax is also supported in PHP 5.
This is especially useful if you prefer not to enter the character directly in a string through its natural form. For example, if it is an invisible control character, or other hard to detect whitespace.
First, a proof example:
// Unicode Character 'HAIR SPACE' (U+200A)
$htmlEntityChar = " ";
$realChar = html_entity_decode($htmlEntityChar);
$phpChar = "\xE2\x80\x8A";
echo 'Proof: ';
var_dump($realChar === $phpChar); // bool(true)
Note that, as mentioned by Pacerier in another answer, this binary code is unique to a specific character encoding. In the above example, \xE2\x80\x8A
is the binary coding for U+200A in UTF-8.
The next question is, how do you get from U+200A
to \xE2\x80\x8A
?
Below is a PHP script to generate the escape sequence for any character, based on either a JSON string, HTML entity, or any other method once you have it as a native string.
function str_encode_utf8binary($str) {
/** @author Krinkle 2018 */
$output = '';
foreach (str_split($str) as $octet) {
$ordInt = ord($octet);
// Convert from int (base 10) to hex (base 16), for PHP \x syntax
$ordHex = base_convert($ordInt, 10, 16);
$output .= '\x' . $ordHex;
}
return $output;
}
function str_convert_html_to_utf8binary($str) {
return str_encode_utf8binary(html_entity_decode($str));
}
function str_convert_json_to_utf8binary($str) {
return str_encode_utf8binary(json_decode($str));
}
// Example for raw string: Unicode Character 'INFINITY' (U+221E)
echo str_encode_utf8binary('8') . "\n";
// \xe2\x88\x9e
// Example for HTML: Unicode Character 'HAIR SPACE' (U+200A)
echo str_convert_html_to_utf8binary(' ') . "\n";
// \xe2\x80\x8a
// Example for JSON: Unicode Character 'HAIR SPACE' (U+200A)
echo str_convert_json_to_utf8binary('"\u200a"') . "\n";
// \xe2\x80\x8a
This question specifically mentions a single column, so the currently accepted answer works. However, it doesn't generalize to multiple columns. For those interested in a general solution, use the following:
df.replace({False: 0, True: 1}, inplace=True)
This works for a DataFrame that contains columns of many different types, regardless of how many are boolean.
Just make sure the label is associated with the input.
<fieldset>
<legend>What metasyntactic variables do you like?</legend>
<input type="checkbox" name="foo" value="bar" id="foo_bar">
<label for="foo_bar">Bar</label>
<input type="checkbox" name="foo" value="baz" id="foo_baz">
<label for="foo_baz">Baz</label>
</fieldset>
In addition to the keycodes supplied in other answers, there are also "usage IDs" used for key remapping in the newer APIs introduced in macOS Sierra:
Technical Note TN2450
Remapping Keys in macOS 10.12 Sierra
Under macOS Sierra 10.12, the mechanism for key remapping was changed. This Technical Note is for developers of key remapping software so that they can update their software to support macOS Sierra 10.12. We present 2 solutions for implementing key remapping functionality for macOS 10.12 in this Technical Note.
https://developer.apple.com/library/archive/technotes/tn2450/_index.html
Keyboard a and A - 0x04
Keyboard b and B - 0x05
Keyboard c and C - 0x06
Keyboard d and D - 0x07
Keyboard e and E - 0x08
...
Update: For bash scripts, the most direct and performant approach is:
if compgen -G "${PROJECT_DIR}/*.png" > /dev/null; then
echo "pattern exists!"
fi
This will work very speedily even in directories with millions of files and does not involve a new subshell.
The simplest should be to rely on ls
return value (it returns non-zero when the files do not exist):
if ls /path/to/your/files* 1> /dev/null 2>&1; then
echo "files do exist"
else
echo "files do not exist"
fi
I redirected the ls
output to make it completely silent.
EDIT: Since this answer has got a bit of attention (and very useful critic remarks as comments), here is an optimization that also relies on glob expansion, but avoids the use of ls
:
for f in /path/to/your/files*; do
## Check if the glob gets expanded to existing files.
## If not, f here will be exactly the pattern above
## and the exists test will evaluate to false.
[ -e "$f" ] && echo "files do exist" || echo "files do not exist"
## This is all we needed to know, so we can break after the first iteration
break
done
This is very similar to @grok12's answer, but it avoids the unnecessary iteration through the whole list.
There are 3 ways I can think of:
The way that is easiest to explain is
:%s/phrase to delete//gc
but you can also (personally I use this second one more often) do a regular search for the phrase to delete
/phrase to delete
Vim will take you to the beginning of the next occurrence of the phrase.
Go into insert mode (hit i) and use the Delete key to remove the phrase.
Hit escape when you have deleted all of the phrase.
Now that you have done this one time, you can hit n to go to the next occurrence of the phrase and then hit the dot/period "." key to perform the delete action you just performed
Continue hitting n and dot until you are done.
Lastly you can do a search for the phrase to delete (like in second method) but this time, instead of going into insert mode, you
Count the number of characters you want to delete
Type that number in (with number keys)
Hit the x key - characters should get deleted
Continue through with n and dot like in the second method.
PS - And if you didn't know already you can do a capital n to move backwards through the search matches.
If you're fetching a single item only then, you need use select before your FirstOrDefault()/SingleOrDefault(). And you can use anonymous object of the required properties.
var name = dbContext.MyTable.Select(x => new { x.UserId, x.Name }).FirstOrDefault(x => x.UserId == 1)?.Name;
Above query will be converted to this:
Select Top (1) UserId, Name from MyTable where UserId = 1;
For multiple items you can simply chain Select after Where:
var names = dbContext.MyTable.Where(x => x.UserId > 10).Select(x => x.Name);
Use anonymous object inside Select if you need more than one properties.
You can use the dir step, example:
dir("folder") {
sh "pwd"
}
The folder
can be relative or absolute path.
function funcion(y) {
$.ajax({
type: 'POST',
url: '/ruta',
data: {"x": y},
contentType: "application/x-www-form-urlencoded;charset=utf8",
});
}
you can use a Timer (System.Windows.Forms.Timer).
Hook it's Tick event, advance then progress bar until it reaches the max value. when it does (hit the max) and you didn't finish the job, reset the progress bar value back to minimum.
...just like Windows Explorer :-)
In Python 3.3+, you could use exception names instead of errno constants. Posix version:
import os
def pid_exists(pid):
if pid < 0: return False #NOTE: pid == 0 returns True
try:
os.kill(pid, 0)
except ProcessLookupError: # errno.ESRCH
return False # No such process
except PermissionError: # errno.EPERM
return True # Operation not permitted (i.e., process exists)
else:
return True # no error, we can send a signal to the process
Whenever you have a module followed by a variable on the same line in ansible the parser will treat the reference variable as the beginning of an in-line dictionary. For example:
- name: some example
command: {{ myapp }} -a foo
The default here is to parse the first part of {{ myapp }} -a foo
as a dictionary instead of a string and you will get an error.
So you must quote the argument like so:
- name: some example
command: "{{ myapp }} -a foo"
There are several key differences.
update
is used on a queryset, so it is possible to update multiple objects at once.
As @FallenAngel pointed out, there are differences in how custom save()
method triggers, but it is also important to keep in mind signals
and ModelManagers
. I have build a small testing app to show some valuable differencies. I am using Python 2.7.5, Django==1.7.7 and SQLite, note that the final SQLs may vary on different versions of Django and different database engines.
Ok, here's the example code.
models.py
:
from __future__ import print_function
from django.db import models
from django.db.models import signals
from django.db.models.signals import pre_save, post_save
from django.dispatch import receiver
__author__ = 'sobolevn'
class CustomManager(models.Manager):
def get_queryset(self):
super_query = super(models.Manager, self).get_queryset()
print('Manager is called', super_query)
return super_query
class ExtraObject(models.Model):
name = models.CharField(max_length=30)
def __unicode__(self):
return self.name
class TestModel(models.Model):
name = models.CharField(max_length=30)
key = models.ForeignKey('ExtraObject')
many = models.ManyToManyField('ExtraObject', related_name='extras')
objects = CustomManager()
def save(self, *args, **kwargs):
print('save() is called.')
super(TestModel, self).save(*args, **kwargs)
def __unicode__(self):
# Never do such things (access by foreing key) in real life,
# because it hits the database.
return u'{} {} {}'.format(self.name, self.key.name, self.many.count())
@receiver(pre_save, sender=TestModel)
@receiver(post_save, sender=TestModel)
def reicever(*args, **kwargs):
print('signal dispatched')
views.py
:
def index(request):
if request and request.method == 'GET':
from models import ExtraObject, TestModel
# Create exmple data if table is empty:
if TestModel.objects.count() == 0:
for i in range(15):
extra = ExtraObject.objects.create(name=str(i))
test = TestModel.objects.create(key=extra, name='test_%d' % i)
test.many.add(test)
print test
to_edit = TestModel.objects.get(id=1)
to_edit.name = 'edited_test'
to_edit.key = ExtraObject.objects.create(name='new_for')
to_edit.save()
new_key = ExtraObject.objects.create(name='new_for_update')
to_update = TestModel.objects.filter(id=2).update(name='updated_name', key=new_key)
# return any kind of HttpResponse
That resuled in these SQL queries:
# to_edit = TestModel.objects.get(id=1):
QUERY = u'SELECT "main_testmodel"."id", "main_testmodel"."name", "main_testmodel"."key_id"
FROM "main_testmodel"
WHERE "main_testmodel"."id" = %s LIMIT 21'
- PARAMS = (u'1',)
# to_edit.save():
QUERY = u'UPDATE "main_testmodel" SET "name" = %s, "key_id" = %s
WHERE "main_testmodel"."id" = %s'
- PARAMS = (u"'edited_test'", u'2', u'1')
# to_update = TestModel.objects.filter(id=2).update(name='updated_name', key=new_key):
QUERY = u'UPDATE "main_testmodel" SET "name" = %s, "key_id" = %s
WHERE "main_testmodel"."id" = %s'
- PARAMS = (u"'updated_name'", u'3', u'2')
We have just one query for update()
and two for save()
.
Next, lets talk about overriding save()
method. It is called only once for save()
method obviously. It is worth mentioning, that .objects.create()
also calls save()
method.
But update()
does not call save()
on models. And if no save()
method is called for update()
, so the signals are not triggered either. Output:
Starting development server at http://127.0.0.1:8000/
Quit the server with CONTROL-C.
# TestModel.objects.get(id=1):
Manager is called [<TestModel: edited_test new_for 0>]
Manager is called [<TestModel: edited_test new_for 0>]
save() is called.
signal dispatched
signal dispatched
# to_update = TestModel.objects.filter(id=2).update(name='updated_name', key=new_key):
Manager is called [<TestModel: edited_test new_for 0>]
As you can see save()
triggers Manager
's get_queryset()
twice. When update()
only once.
Resolution. If you need to "silently" update your values, without save()
been called - use update
. Usecases: last_seen
user's field. When you need to update your model properly use save()
.
But you might also want to look into a very different approach, listening for file-system events.
I had the same problem and I solved by using the postcast server. You can install it locally and use it.
If you are going to include specific path in most of the files in your application, create a Global variable to your root folder.
define("APPLICATION_PATH", realpath(dirname(__FILE__) . '/../app'));
or
define("APPLICATION_PATH", realpath(DIR(__FILE__) . '/../app'));
Now this Global variable "APPLICATION_PATH" can be used to include all the files instead of calling realpath() everytime you include a new file.
EX:
include(APPLICATION_PATH ."/config/config.ini";
Hope it helps ;-)
The below both ways works fine.
System.out.println("The Class Name is: " + this.getClass().getName());
System.out.println("The simple Class Name is: " + this.getClass().getSimpleName());
Output as below:
The Class Name is: package.Student
The simple Class Name is: Student
This error is very non-descriptive but the key here is that 'ID' is in uppercase. This indicates that the route has not been correctly set up. To let the application handle URLs with an id, you need to make sure that there's at least one route configured for it. You do this in the RouteConfig.cs located in the App_Start folder. The most common is to add the id as an optional parameter to the default route.
public static void RegisterRoutes(RouteCollection routes)
{
//adding the {id} and setting is as optional so that you do not need to use it for every action
routes.MapRoute(
name: "Default",
url: "{controller}/{action}/{id}",
defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional }
);
}
Now you should be able to redirect to your controller the way you have set it up.
[HttpPost]
public ActionResult RedirectToImages(int id)
{
return RedirectToAction("Index","ProductImageManager", new { id });
//if the action is in the same controller, you can omit the controller:
//RedirectToAction("Index", new { id });
}
In one or two occassions way back I ran into some issues by normal redirect and had to resort to doing it by passing a RouteValueDictionary. More information on RedirectToAction with parameter
return RedirectToAction("Index", new RouteValueDictionary(
new { controller = "ProductImageManager", action = "Index", id = id } )
);
If you get a very similar error but in lowercase 'id', this is usually because the route expects an id parameter that has not been provided (calling a route without the id /ProductImageManager/Index
). See this so question for more information.
Copy-on-write is a technique to reduce the memory usage of resource copies using deferred copy. The resource copies are initially virtual (i.e. they share memory) and only become real (i.e. they have their own memory) on the first write operation, hence the name ‘copy-on-write’.
Here after is a Python implementation of the copy-on-write technique using the proxy design pattern. A ValueProxy
object (the proxy) implements the copy-on-write technique by:
Value
object (the subject);ValueProxy
object sharing the same subject attribute as the original ValueProxy
object;Value
object with the new state and the rebinding of the subject attribute to this new immutable Value
object.import abc
class BaseValue(abc.ABC):
@abc.abstractmethod
def read(self):
raise NotImplementedError
@abc.abstractmethod
def write(self, data):
raise NotImplementedError
class Value(BaseValue):
def __init__(self, data):
self.data = data
def read(self):
return self.data
def write(self, data):
pass
class ValueProxy(BaseValue):
def __init__(self, subject):
self.subject = subject
def read(self):
return self.subject.read()
def write(self, data):
self.subject = Value(data)
def clone(self):
return ValueProxy(self.subject)
v1 = ValueProxy(Value('foo'))
v2 = v1.clone() # shares the immutable Value object between the copies
assert v1.subject is v2.subject
v2.write('bar') # creates a new immutable Value object with the new state
assert v1.subject is not v2.subject
If you are using GNU find
find . -type f -printf "%f\n"
Or you can use a programming language such as Ruby(1.9+)
$ ruby -e 'Dir["**/*"].each{|x| puts File.basename(x)}'
If you fancy a bash (at least 4) solution
shopt -s globstar
for file in **; do echo ${file##*/}; done
The snippet you're showing doesn't seem to be directly responsible for the error.
This is how you can CAUSE the error:
namespace MyNameSpace
{
int i; <-- THIS NEEDS TO BE INSIDE THE CLASS
class MyClass
{
...
}
}
If you don't immediately see what is "outside" the class, this may be due to misplaced or extra closing bracket(s) }
.
In Angular 2, change detection is automatic... $scope.$watch()
and $scope.$digest()
R.I.P.
Unfortunately, the Change Detection section of the dev guide is not written yet (there is a placeholder near the bottom of the Architecture Overview page, in section "The Other Stuff").
Here's my understanding of how change detection works:
setTimeout()
inside our components rather than something like $timeout
... because setTimeout()
is monkey patched.ChangeDetectorRef
.) These change detectors are created when Angular creates components. They keep track of the state of all of your bindings, for dirty checking. These are, in a sense, similar to the automatic $watches()
that Angular 1 would set up for {{}}
template bindings.onPush
change detection strategy on any of your components), every component in the tree is examined once (TTL=1)... from the top, in depth-first order. (Well, if you're in dev mode, change detection runs twice (TTL=2). See ApplicationRef.tick() for more about this.) It performs dirty checking on all of your bindings, using those change detector objects.
ngOnChanges()
to be notified of changes. ngDoCheck()
(see this SO answer for more on this). Other references to learn more:
onPush
.If you want to make a copy of:
int[] a = {1,2,3,4,5};
This is the way to go:
int[] b = Arrays.copyOf(a, a.length);
Arrays.copyOf
may be faster than a.clone()
on small arrays. Both copy elements equally fast but clone() returns Object
so the compiler has to insert an implicit cast to int[]
. You can see it in the bytecode, something like this:
ALOAD 1
INVOKEVIRTUAL [I.clone ()Ljava/lang/Object;
CHECKCAST [I
ASTORE 2
You can use below script to get the output to csv files. One file per table with headers.
for tn in `mysql --batch --skip-page --skip-column-name --raw -uuser -ppassword -e"show tables from mydb"`
do
mysql -uuser -ppassword mydb -B -e "select * from \`$tn\`;" | sed 's/\t/","/g;s/^/"/;s/$/"/;s/\n//g' > $tn.csv
done
user is your user name, password is the password if you don't want to keep typing the password for each table and mydb is the database name.
Explanation of the script: The first expression in sed, will replace the tabs with "," so you have fields enclosed in double quotes and separated by commas. The second one insert double quote in the beginning and the third one insert double quote at the end. And the final one takes care of the \n.
If you don't want to use apache, you can use Java8:
byte[] decodedBytes = Base64.getDecoder().decode("YWJjZGVmZw==");
System.out.println(new String(decodedBytes) + "\n");
It probably won't start because you
OR
If you migrated your project from Eclipse chances are that on running an emulator you will get stuck with this message not seeing anything else:
Waiting for device.
If you open the device manager you probably see something like this:
Just recreate your devices.
Seems like one of your values, with a property key of 'value' is undefined. Test that i1
, i2
and __i
are defined before executing the if statements:
var i1 = document.getElementById('i1');
var i2 = document.getElementById('i2');
var __i = {'user' : document.getElementsByName("username")[0], 'pass' : document.getElementsByName("password")[0] };
if(i1 && i2 && __i.user && __i.pass)
{
if( __i.user.value.length >= 1 ) { i1.value = ''; } else { i1.value = 'Acc'; }
if( __i.pass.value.length >= 1 ) { i2.value = ''; } else { i2.value = 'Pwd'; }
}
I got the error "The table/view 'dbo.vMyView' does not have a primary key defined" after I created a view in SQL server query designer. I solved the problem by using ISNULL on a column to force entity framework to use it as a primary key. You might have to restart visual studio to get the warnings to go away.
CREATE VIEW [dbo].[vMyView]
AS
SELECT ISNULL(Id, -1) AS IdPrimaryKey, Name
FROM dbo.MyTable
if you do not want to delete all NaN, use
df[~df.C.str.contains("XYZ") == True]
I would like to add my cents to the top answer in that if the language supports something like generator, bfs can be done co-recursively.
To begin with, @Tanzelax's answer reads:
Breadth-first traversal traditionally uses a queue, not a stack. The nature of a queue and a stack are pretty much opposite, so trying to use the call stack (which is a stack, hence the name) as the auxiliary storage (a queue) is pretty much doomed to failure
Indeed, ordinary function call's stack won't behave like a normal stack. But generator function will suspend the execution of function so it gives us the chance to yield next level of nodes' children without delving into deeper descendants of the node.
The following code is recursive bfs in Python.
def bfs(root):
yield root
for n in bfs(root):
for c in n.children:
yield c
The intuition here is:
I had to do: c:\Users\xxxx>c:/python27/scripts/pip install openpyxl
I had to save the openpyxl files in the scripts folder.
"This is a comment in vimrc. It does not have a closing quote
Source: http://vim.wikia.com/wiki/Backing_up_and_commenting_vimrc
You should use getFullYear()
instead of getYear()
. getYear()
returns the actual year minus 1900 (and so is fairly useless).
Thus a date marking exactly one year from the present moment would be:
var oneYearFromNow = new Date();
oneYearFromNow.setFullYear(oneYearFromNow.getFullYear() + 1);
Note that the date will be adjusted if you do that on February 29.
Similarly, you can get a date that's a month from now via getMonth()
and setMonth()
. You don't have to worry about "rolling over" from the current year into the next year if you do it in December; the date will be adjusted automatically. Same goes for day-of-month via getDate()
and setDate()
.
Try to create a file using the code, so you will get to know the path of the file where the system create
File test=new File("check.txt");
if (test.createNewFile()) {
System.out.println("File created: " + test.getName());
}
Just for someone who needs to focus only on Java files, this is my solution:
git diff --name-status SHA1 SHA2 | grep '\.java$'
tar -czf workspace.tar.gz .??* *
Specifying .??*
will include "dot" files and directories that have at least 2 characters after the dot. The down side is it will not include files/directories with a single character after the dot, such as .a
, if there are any.
I wouldn't push regular code into an exception block. Just check whether any rows exist that meet your condition, and proceed from there:
declare
any_rows_found number;
begin
select count(*)
into any_rows_found
from my_table
where rownum = 1 and
... other conditions ...
if any_rows_found = 1 then
...
else
...
end if;
New way I've just stumbled upon: css calc()
:
.calculated-width {
width: -webkit-calc(100% - 100px);
width: -moz-calc(100% - 100px);
width: calc(100% - 100px);
}?
Source: css width 100% minus 100px
Why not just
$q->where("a = 1");
$q->andWhere("b = 1 OR b = 2");
$q->andWhere("c = 1 OR d = 2");
EDIT: You can also use the Expr class (Doctrine2).
In Python shape()
is use in pandas to give number of row/column:
Number of rows is given by:
train = pd.read_csv('fine_name') //load the data
train.shape[0]
Number of columns is given by
train.shape[1]
Jumping off from Alex Montoya's approach for multiple file input elements
const inputFiles = document.querySelectorAll('input[type="file"]');
const formData = new FormData();
for (const file of inputFiles) {
formData.append(file.name, file.files[0]);
}
fetch(url, {
method: 'POST',
body: formData })
Hope this coding will helps you :)
plot(x,y,xaxt = 'n')
axis(side=1,at=c(1,20,30,50),labels=c("1975","1980","1985","1990"))
To refresh the whole page, but it works normally:
Response.Redirect(url,bool)
This happened to me when I imported a Java 1.8 project from Eclipse Luna into Eclipse Kepler.
Et voilà, that worked for me.
I think ImageFont module available in PIL
should be helpful in solving text font size problem. Just check what font type and size is appropriate for you and use following function to change font values.
# font = ImageFont.truetype(<font-file>, <font-size>)
# font-file should be present in provided path.
font = ImageFont.truetype("sans-serif.ttf", 16)
So your code will look something similar to:
from PIL import Image
from PIL import ImageFont
from PIL import ImageDraw
img = Image.open("sample_in.jpg")
draw = ImageDraw.Draw(img)
# font = ImageFont.truetype(<font-file>, <font-size>)
font = ImageFont.truetype("sans-serif.ttf", 16)
# draw.text((x, y),"Sample Text",(r,g,b))
draw.text((0, 0),"Sample Text",(255,255,255),font=font)
img.save('sample-out.jpg')
You might need to put some extra effort to calculate font size. In case you want to change it based on amount of text user has provided in TextArea
.
To add text wrapping (Multiline thing) just take a rough idea of how many characters can come in one line, Then you can probably write a pre-pprocessing function for your Text, Which basically finds the character which will be last in each line and converts white space before this character to new-line.
Or you can use the more obvious solution, right in the GUI: Tools -> Messages (set verbosity to 2)...
Already there are lots of answers to your question, You can do it like this also. You can give your table an alias name and use that in the select query like this:
SELECT a.id, b.id, name, section
FROM tbl_names as a
LEFT JOIN tbl_section as b ON a.id = b.id;
Did you try using t.Text
?
If you wrap each template in a script tag, eg:
<script id="about.html" type="text/ng-template">
<div>
<h3>About</h3>
This is the About page
Its cool!
</div>
</script>
Concatenate all templates into 1 big file. If using Visual Studio 2013, download Web essentials - it adds a right click menu to create an HTML Bundle.
Add the code that this guy wrote to change the angular $templatecache
service - its only a small piece of code and it works: Vojta Jina's Gist
Its the $http.get
that should be changed to use your bundle file:
allTplPromise = $http.get('templates/templateBundle.min.html').then(
Your routes templateUrl
should look like this:
$routeProvider.when(
"/about", {
controller: "",
templateUrl: "about.html"
}
);
#include<stdio.h>
#include<time.h>
void main()
{
time_t t;
time(&t);
printf("\n current time is : %s",ctime(&t));
}
NumPy is not just more efficient; it is also more convenient. You get a lot of vector and matrix operations for free, which sometimes allow one to avoid unnecessary work. And they are also efficiently implemented.
For example, you could read your cube directly from a file into an array:
x = numpy.fromfile(file=open("data"), dtype=float).reshape((100, 100, 100))
Sum along the second dimension:
s = x.sum(axis=1)
Find which cells are above a threshold:
(x > 0.5).nonzero()
Remove every even-indexed slice along the third dimension:
x[:, :, ::2]
Also, many useful libraries work with NumPy arrays. For example, statistical analysis and visualization libraries.
Even if you don't have performance problems, learning NumPy is worth the effort.
In front-end JavaScript/HTML, you can load a binary file as an image, you do not have to convert to base64:
<img src="http://engci.nabisco.com/artifactory/repo/folder/my-image">
my-image is a binary image file. This will load just fine.
The removeClass function takes a function argument since jQuery 1.4.
$("#hello").removeClass (function (index, className) {
return (className.match (/(^|\s)color-\S+/g) || []).join(' ');
});
Live example: http://jsfiddle.net/xa9xS/1409/
First of all, there's no such thing as a JSON object. What you've got in your question is a JavaScript object literal (see here for a great discussion on the difference). Here's how you would go about serializing what you've got to JSON though:
I would use an anonymous type filled with your results
type:
string json = JsonConvert.SerializeObject(new
{
results = new List<Result>()
{
new Result { id = 1, value = "ABC", info = "ABC" },
new Result { id = 2, value = "JKL", info = "JKL" }
}
});
Also, note that the generated JSON has result items with id
s of type Number
instead of strings. I doubt this will be a problem, but it would be easy enough to change the type of id
to string
in the C#.
I'd also tweak your results
type and get rid of the backing fields:
public class Result
{
public int id { get ;set; }
public string value { get; set; }
public string info { get; set; }
}
Furthermore, classes conventionally are PascalCased
and not camelCased
.
Here's the generated JSON from the code above:
{
"results": [
{
"id": 1,
"value": "ABC",
"info": "ABC"
},
{
"id": 2,
"value": "JKL",
"info": "JKL"
}
]
}
Just run this command (where NEWPASS
is your password):
$(brew --prefix mysql)/bin/mysqladmin -u root password NEWPASS
I have had the same error and fixed it this way.
Download Putty: http://www.chiark.greenend.org.uk/~sgtatham/putty/
Using putty.exe:
Putty GUI:
HostName: 127.0.0.1
Port: 2222
When you connect(Terminal Screen):
User: vagrant
Passwd: vagrant
Before you try to connect, verify your VM using cmd.exe:
vagrant status
If it is down use:
vagrant up
I had a problem where I had to round up only and these answers didnt work for how I had to have my code run so I used a different method. The INT function rounds towards negative (4.2 goes to 4, -4.2 goes to -5) Therefore, I changed my function to negative, applied the INT function, then returned it to positive simply by multiplying it by -1 before and after
Count = -1 * (int(-1 * x))
I got the same error when xampp was installed on windows 10.
www.example.com:443:0 server certificate does NOT include an ID which matches the server name
So I opened httpd-ssl.conf
file in xampp folder and changed the following line
ServerName www.example.com:443
To
ServerName localhost
And the problem was fixed.
If you want to have images about same topic, you ca use subfigure
package and construction:
\begin{figure}
\subfigure[first image]{\includegraphics{image}\label{first}}
\subfigure[second image]{\includegraphics{image}\label{second}}
\caption{main caption}\label{main_label}
\end{figure}
If you want to have, for example two, different images next to each other you can use:
\begin{figure}
\begin{minipage}{.5\textwidth}
\includegraphics{image}
\caption{first}
\end{minipage}
\begin{minipage}{.5\textwidth}
\includegraphics{image}
\caption{second}
\end{minipage}
\end{figure}
For images in columns you will have [1] [2] [3] [4] in the source, but it will look like
[1] [3]
[2] [4].
Modern Javascript implementations with the template
syntax using backticks are also an easy way to assign an HTML block of code to a variable:
const firstName = 'Sam';
const fullName = 'Sam Smith';
const htmlString = `<h1>Hello ${fullName}!</h1><p>This is some content \
that will display. You can even inject your first name, ${firstName}, \
in the code.</p><p><a href="http://www.google.com">Search</a> for \
stuff on the Google website.</p>`;
I haven't seen this done before, but this is how it was done for emulating IE 8/7 when using IE 9:
<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE9">
If not, then try this one:
<meta http-equiv="X-UA-Compatible" content="IE=9">
Add those to your header with the other meta tags. This should force IE10 to render as IE9.
Another option you could do (assuming you are using PHP) is add this to your .htaccess
file:
Header set X-UA-Compatible "IE=9"
This will perform the action universally, rather than having to worry about adding the meta tag to all of your headers.
jQuery does not support the classes of SVG elements. You can get the element directly $(el).get(0)
and use classList
and add / remove
. There is a trick with this too in that the topmost SVG element is actually a normal DOM object and can be used like every other element in jQuery. In my project I created this to take care of what I needed but the documentation provided on the Mozilla Developer Network has a shim that can be used as an alternative.
function addRemoveClass(jqEl, className, addOrRemove)
{
var classAttr = jqEl.attr('class');
if (!addOrRemove) {
classAttr = classAttr.replace(new RegExp('\\s?' + className), '');
jqEl.attr('class', classAttr);
} else {
classAttr = classAttr + (classAttr.length === 0 ? '' : ' ') + className;
jqEl.attr('class', classAttr);
}
}
An alternative all tougher is to use D3.js as your selector engine instead. My projects have charts that are built with it so it's also in my app scope. D3 correctly modifies the class attributes of vanilla DOM elements and SVG elements. Though adding D3 for just this case would likely be overkill.
d3.select(el).classed('myclass', true);
You can just use sum(people$Weight)
.
sum
sums up a vector, and people$Weight
retrieves the weight column from your data frame.
Note - you can get built-in help by using ?sum
, ?colSums
, etc. (by the way, colSums
will give you the sum for each column).
Here is a little code that is useful.
var uiHelper = function () {
var htmls = {};
var getHTML = function (url) {
/// <summary>Returns HTML in a string format</summary>
/// <param name="url" type="string">The url to the file with the HTML</param>
if (!htmls[url])
{
var xmlhttp = new XMLHttpRequest();
xmlhttp.open("GET", url, false);
xmlhttp.send();
htmls[url] = xmlhttp.responseText;
};
return htmls[url];
};
return {
getHTML: getHTML
};
}();
--Convert the HTML string into a DOM Element
String.prototype.toDomElement = function () {
var wrapper = document.createElement('div');
wrapper.innerHTML = this;
var df= document.createDocumentFragment();
return df.addChilds(wrapper.children);
};
--prototype helper
HTMLElement.prototype.addChilds = function (newChilds) {
/// <summary>Add an array of child elements</summary>
/// <param name="newChilds" type="Array">Array of HTMLElements to add to this HTMLElement</param>
/// <returns type="this" />
for (var i = 0; i < newChilds.length; i += 1) { this.appendChild(newChilds[i]); };
return this;
};
--Usage
thatHTML = uiHelper.getHTML('/Scripts/elevation/ui/add/html/add.txt').toDomElement();
use Procedure
Create proc MyView as begin SELECT TOP 99999999999999 Column1, Column2 FROM dbo.Table Order by Column1 end
execute procedure
exec MyView
With Bootstrap you can use an anchor like a button.
<a class="btn btn-success" href="https://www.google.com" target="_blank">Google</a>
And use target="_blank"
to open the link in a new tab.
This is quite a misleading status. It should be called "reading and filtering data".
This means that MySQL
has some data stored on the disk (or in memory) which is yet to be read and sent over. It may be the table itself, an index, a temporary table, a sorted output etc.
If you have a 1M records table (without an index) of which you need only one record, MySQL
will still output the status as "sending data" while scanning the table, despite the fact it has not sent anything yet.
Just install Xvnc Plugin in Jenkins. The problem should be solved.
The best way to do this would be to use the promise returning function as it is, like this
lookupValue(file).then(function(res) {
// Write the code which depends on the `res.val`, here
});
The function which invokes an asynchronous function cannot wait till the async function returns a value. Because, it just invokes the async function and executes the rest of the code in it. So, when an async function returns a value, it will not be received by the same function which invoked it.
So, the general idea is to write the code which depends on the return value of an async function, in the async function itself.
Swift 3 version code:
let urlString = "file:///Users/Documents/Book/Note.txt"
let pathURL = URL(string: urlString)!
print("the url = " + pathURL.path)
You can achieve this by using the Delegate.Remove or Delegate.RemoveAll methods.
Create your shell script as login.sh
in your $HOME folder.
Paste the following one-line script into Script Editor:
do shell script "$HOME/login.sh"
Then save it as an application.
Finally add the application to your login items.
If you want to make the script output visual, you can swap step 2 for this:
tell application "Terminal"
activate
do script "$HOME/login.sh"
end tell
If multiple commands are needed something like this can be used:
tell application "Terminal"
activate
do script "cd $HOME"
do script "./login.sh" in window 1
end tell
CSS transitions only animate from one set of styles to another; what you're looking for is CSS animations.
You need to define the animation keyframes and apply it to the element:
@keyframes changewidth {
from {
width: 100px;
}
to {
width: 300px;
}
}
div {
animation-duration: 0.1s;
animation-name: changewidth;
animation-iteration-count: infinite;
animation-direction: alternate;
}
Check out the link above to figure out how to customize it to your liking, and you'll have to add browser prefixes.
If you don't have access to sysjobs table (someone elses server etc) you might be have or be allowed access to sysjobs_view
SELECT *
from msdb..sysjobs_view s
left join master.sys.syslogins l on s.owner_sid = l.sid
or
SELECT *, SUSER_SNAME(s.owner_sid) AS owner
from msdb..sysjobs_view s
Yes, and basically you can also use inline style:
<span style="font-size: 15px" class="glyphicon glyphicon-cog"></span>
with your own soup object:
soup.p.next_sibling.strip()
soup.p
*(this hinges on it being the first <p> in the parse tree)next_sibling
on the tag object that soup.p
returns since the desired text is nested at the same level of the parse tree as the <p> .strip()
is just a Python str method to remove leading and trailing whitespace*otherwise just find the element using your choice of filter(s)
in the interpreter this looks something like:
In [4]: soup.p
Out[4]: <p>something</p>
In [5]: type(soup.p)
Out[5]: bs4.element.Tag
In [6]: soup.p.next_sibling
Out[6]: u'\n THIS IS MY TEXT\n '
In [7]: type(soup.p.next_sibling)
Out[7]: bs4.element.NavigableString
In [8]: soup.p.next_sibling.strip()
Out[8]: u'THIS IS MY TEXT'
In [9]: type(soup.p.next_sibling.strip())
Out[9]: unicode
What the browser does when you've got
<a onclick="alert('Hi');" ... >
is to set the actual value of "onclick" to something effectively like:
new Function("event", "alert('Hi');");
That is, it creates a function that expects an "event" parameter. (Well, IE doesn't; it's more like a plain simple anonymous function.)
One liner - Fluent syntax
public static class Extensions
{
/// <summary>
/// A generic extension method that aids in reflecting
/// and retrieving any attribute that is applied to an `Enum`.
/// </summary>
public static TAttribute GetAttribute<TAttribute>(this Enum enumValue)
where TAttribute : Attribute
{
return enumValue.GetType()
.GetMember(enumValue.ToString())
.First()
.GetCustomAttribute<TAttribute>();
}
}
Example
public enum Season
{
[Display(Name = "It's autumn")]
Autumn,
[Display(Name = "It's winter")]
Winter,
[Display(Name = "It's spring")]
Spring,
[Display(Name = "It's summer")]
Summer
}
public class Foo
{
public Season Season = Season.Summer;
public void DisplayName()
{
var seasonDisplayName = Season.GetAttribute<DisplayAttribute>();
Console.WriteLine("Which season is it?");
Console.WriteLine (seasonDisplayName.Name);
}
}
Which season is it?
It's summer
Run dos2unix or similar utility on it to remove the carriage returns (^M).
This message indicates that your file has dos-style lineendings:
-bash: /backup/backup.sh: /bin/bash^M: bad interpreter: No such file or directory
Utilities like dos2unix
will fix it:
dos2unix <backup.bash >improved-backup.sh
Or, if no such utility is installed, you can accomplish the same thing with translate:
tr -d "\015\032" <backup.bash >improved-backup.sh
As for how those characters got there in the first place, @MadPhysicist had some good comments.
I have mysql version 5.6.27 on my LEMP and CURRENT_TIMESTAMP as default value works fine.
Same problem. I have enabled multidex: defaultConfig { applicationId "xxx.xxx.xxxx" minSdkVersion 24 targetSdkVersion 26 multiDexEnabled true
I have cleared cache, ran gradle clean, rebuild, make, tried to make sure no conflicts in imported libraries (Removed all transitive dependencies) and made all updates. Still:
Error:Execution failed for task ':app:transformDexArchiveWithExternalLibsDexMergerForDebug'. java.lang.RuntimeException: com.android.builder.dexing.DexArchiveMergerException: Unable to merge dex
Turns out the build did not like: implementation 'org.slf4j:slf4j-android:1.7.21'
This may be what your after:
SELECT Count(Owner_ID), Name
FROM (
SELECT M.Owner_ID, O.Name, T.Type
FROM Transport As T, Owner As O, Motorbike As M
WHERE T.Type = 'Motorbike'
AND O.Owner_ID = M.Owner_ID
AND T.Type_ID = M.Motorbike_ID
UNION ALL
SELECT C.Owner_ID, O.Name, T.Type
FROM Transport As T, Owner As O, Car As C
WHERE T.Type = 'Car'
AND O.Owner_ID = C.Owner_ID
AND T.Type_ID = C.Car_ID
)
GROUP BY Owner_ID
In order to make it work on selection in a list view use the following code:
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true" android:color="#fff"/>
<item android:state_activated="true" android:color="#fff"/>
<item android:color="#000" />
</selector>
Apparently the key is state_activated="true"
state.
We have two options.
Look at Preferences->Locations->"Custom Paths" in Xcode's preference. A path added here will be a variable which you can add to "Header Search Paths" in project build settings as "$cppheaders", if you saved the custom path with that name.
Set HEADER_SEARCH_PATHS
parameter in build settings on project info. I added "${SRCROOT}"
here without recursion. This setting works well for most projects.
About 2nd option:
Xcode uses Clang which has GCC compatible command set.
GCC has an option -Idir
which adds system header searching paths. And this option is accessible via HEADER_SEARCH_PATHS
in Xcode project build setting.
However, path string added to this setting should not contain any whitespace characters because the option will be passed to shell command as is.
But, some OS X users (like me) may put their projects on path including whitespace which should be escaped. You can escape it like /Users/my/work/a\ project\ with\ space
if you input it manually. You also can escape them with quotes to use environment variable like "${SRCROOT}"
.
Or just use .
to indicate current directory. I saw this trick on Webkit's source code, but I am not sure that current directory will be set to project directory when building it.
The ${SRCROOT}
is predefined value by Xcode. This means source directory. You can find more values in Reference document.
PS. Actually you don't have to use braces {}
. I get same result with $SRCROOT
. If you know the difference, please let me know.
for it was comming because of java version mismatch ,so I have corrected it and i am able to build the war file.hope it will help someone
<maven.compiler.source>1.7</maven.compiler.source>
<maven.compiler.target>1.7</maven.compiler.target>
I stumbled upon this question due to the same problem but none of the answers helps if you need to behave exactly like setInterval()
but with the only difference that the function is called immediately at the beginning.
Here is my solution to this problem:
function setIntervalImmediately(func, interval) {
func();
return setInterval(func, interval);
}
The advantage of this solution:
setInterval
can easily be adapted by substitutionclearInterval()
laterExample:
// create 1 second interval with immediate execution
var myInterval = setIntervalImmediately( _ => {
console.log('hello');
}, 1000);
// clear interval after 4.5 seconds
setTimeout( _ => {
clearInterval(myInterval);
}, 4500);
To be cheeky, if you really need to use setInterval
then you could also replace the original setInterval
. Hence, no change of code required when adding this before your existing code:
var setIntervalOrig = setInterval;
setInterval = function(func, interval) {
func();
return setIntervalOrig(func, interval);
}
Still, all advantages as listed above apply here but no substitution is necessary.
As far as I know, the dual
table in Oracle is a special table with just one row. So, this would suffice:
SELECT user
FROM dual
I like a combination of Gaurav's and user2550946's answer best, but would like to add two more aspects:
Don't use JAVA_OPTS
, instead use CATALINA_OPTS
. This will be used solely for starting tomcat, not for shutting it down. Typically you want more memory when starting tomcat, but the shutdown process (which just spins up, tells tomcat to shut down and then ends again) doesn't need any specifically tuned resources. In fact, shutdown can even fail if some ridiculous amount of memory is not available from the OS anymore.
On production systems, my recommentation is to claim the maximum allowed memory immediately. Because if you anticipate that the memory will be required sooner or later, you don't want to discover it not being available at 3am in the night - rather when you start up the server. Thus, set -Xmx
and -Xms
to the same value in production systems. (This makes my aspect 1 even more relevant)
Or, in one line, here's my recommendation:
set "CATALINA_OPTS=%CATALINA_OPTS% -Xms1024M -Xmx1024M"
SELECT * FROM NOTES ORDER BY UPPER(title)
Well, this is my final solution for a simple db, for Linux:
# Read this before!
#
# * roles in postgres are users, and can be used also as group of users
# * $ROLE_LOCAL will be the user that access the db for maintenance and
# administration. $ROLE_REMOTE will be the user that access the db from the webapp
# * you have to change '$ROLE_LOCAL', '$ROLE_REMOTE' and '$DB'
# strings with your desired names
# * it's preferable that $ROLE_LOCAL == $DB
#-------------------------------------------------------------------------------
//----------- SKIP THIS PART UNTIL POSTGRES JDBC ADDS SCRAM - START ----------//
cd /etc/postgresql/$VERSION/main
sudo cp pg_hba.conf pg_hba.conf_bak
sudo -e pg_hba.conf
# change all `md5` with `scram-sha-256`
# save and exit
//------------ SKIP THIS PART UNTIL POSTGRES JDBC ADDS SCRAM - END -----------//
sudo -u postgres psql
# in psql:
create role $ROLE_LOCAL login createdb;
\password $ROLE_LOCAL
create role $ROLE_REMOTE login;
\password $ROLE_REMOTE
create database $DB owner $ROLE_LOCAL encoding "utf8";
\connect $DB $ROLE_LOCAL
# Create all tables and objects, and after that:
\connect $DB postgres
revoke connect on database $DB from public;
revoke all on schema public from public;
revoke all on all tables in schema public from public;
grant connect on database $DB to $ROLE_LOCAL;
grant all on schema public to $ROLE_LOCAL;
grant all on all tables in schema public to $ROLE_LOCAL;
grant all on all sequences in schema public to $ROLE_LOCAL;
grant all on all functions in schema public to $ROLE_LOCAL;
grant connect on database $DB to $ROLE_REMOTE;
grant usage on schema public to $ROLE_REMOTE;
grant select, insert, update, delete on all tables in schema public to $ROLE_REMOTE;
grant usage, select on all sequences in schema public to $ROLE_REMOTE;
grant execute on all functions in schema public to $ROLE_REMOTE;
alter default privileges for role $ROLE_LOCAL in schema public
grant all on tables to $ROLE_LOCAL;
alter default privileges for role $ROLE_LOCAL in schema public
grant all on sequences to $ROLE_LOCAL;
alter default privileges for role $ROLE_LOCAL in schema public
grant all on functions to $ROLE_LOCAL;
alter default privileges for role $ROLE_REMOTE in schema public
grant select, insert, update, delete on tables to $ROLE_REMOTE;
alter default privileges for role $ROLE_REMOTE in schema public
grant usage, select on sequences to $ROLE_REMOTE;
alter default privileges for role $ROLE_REMOTE in schema public
grant execute on functions to $ROLE_REMOTE;
# CTRL+D
I have gotten a better solution for the issue configurationmanager does not exist in the current context
.
To a read connection string from web.config
we need to use ConfigurationManager
class and its method. If you want to use you need to add namespace using System.Configuration
;
Though you used this namespace, when you try to use the ConfigurationManager
class then the system shows an error “configurationmanager does not exist in the current context”.
To solve this Problem:
ConfigurationManager.ConnectionStrings["ConnectionSql"].ConnectionString;
Yours: Lowest possible is min, highest possible is max+min-1
Google: Lowest possible is min, highest possible is max-1
$("#"+styleTarget).css('font-size', newFontSize);
This will work although when embedding PHP in HTML it is better practice to use the following form:
<table>
<?php foreach($array as $key=>$value): ?>
<tr>
<td><?= $key; ?></td>
</tr>
<?php endforeach; ?>
</table>
You can find the doc for the alternative syntax on PHP.net
I use this and it works right
@Id
@GeneratedValue(generator = "SEC_ODON", strategy = GenerationType.SEQUENCE)
@SequenceGenerator(name = "SEC_ODON", sequenceName = "SO.SEC_ODON",allocationSize=1)
@Column(name="ID_ODON", unique=true, nullable=false, precision=10, scale=0)
public Long getIdOdon() {
return this.idOdon;
}
So it would become:
List<Integer> myCoords = new ArrayList<Integer>();
myCoords.add(10);
myCoords.add(20);
myCoords.add(30);
myCoords.add(40);
myCoords.add(50);
while(true)
Iterator<Integer> myListIterator = myCoords.iterator();
while (myListIterator.hasNext()) {
Integer coord = myListIterator.next();
System.out.print("\r" + coord);
try{
Thread.sleep(2000);
}catch(Exception e){
// handle the exception...
}
}
}
TextView txtvw = (TextView)findViewById(R.id.TextView01);
txtvw.setText(readTxt());
private String readTxt()
{
InputStream raw = getResources().openRawResource(R.raw.hello);
ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
int i;
try
{
i = raw.read();
while (i != -1)
{
byteArrayOutputStream.write(i);
i = raw.read();
}
raw.close();
}
catch (IOException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
return byteArrayOutputStream.toString();
}
TextView01:: txtview in linearlayout hello:: .txt file in res/raw folder (u can access ny othr folder as wel)
Ist 2 lines are 2 written in onCreate() method
rest is to be written in class extending Activity!!
If the array is statically allocated, use sizeof(array) / sizeof(array[0])
If it's dynamically allocated, though, unfortunately you're out of luck as this trick will always return sizeof(pointer_type)/sizeof(array[0])
(which will be 4 on a 32 bit system with char*s) You could either a) keep a #define (or const) constant, or b) keep a variable, however.
@datenstation had the correct concept. Here is a working example that uses CTE to cache variable's names:
CREATE VIEW vwImportant_Users AS
WITH params AS (
SELECT
varType='%Admin%',
varMinStatus=1)
SELECT status, name
FROM sys.sysusers, params
WHERE status > varMinStatus OR name LIKE varType
SELECT * FROM vwImportant_Users
also via JOIN
WITH params AS ( SELECT varType='%Admin%', varMinStatus=1)
SELECT status, name
FROM sys.sysusers INNER JOIN params ON 1=1
WHERE status > varMinStatus OR name LIKE varType
also via CROSS APPLY
WITH params AS ( SELECT varType='%Admin%', varMinStatus=1)
SELECT status, name
FROM sys.sysusers CROSS APPLY params
WHERE status > varMinStatus OR name LIKE varType
Here is the code I use in my C++ app.
Positive points :
Negative points :
// Inspired from http://stackoverflow.com/a/15281070/1529139
// and http://stackoverflow.com/q/40059902/1529139
bool signalCtrl(DWORD dwProcessId, DWORD dwCtrlEvent)
{
bool success = false;
DWORD thisConsoleId = GetCurrentProcessId();
// Leave current console if it exists
// (otherwise AttachConsole will return ERROR_ACCESS_DENIED)
bool consoleDetached = (FreeConsole() != FALSE);
if (AttachConsole(dwProcessId) != FALSE)
{
// Add a fake Ctrl-C handler for avoid instant kill is this console
// WARNING: do not revert it or current program will be also killed
SetConsoleCtrlHandler(nullptr, true);
success = (GenerateConsoleCtrlEvent(dwCtrlEvent, 0) != FALSE);
FreeConsole();
}
if (consoleDetached)
{
// Create a new console if previous was deleted by OS
if (AttachConsole(thisConsoleId) == FALSE)
{
int errorCode = GetLastError();
if (errorCode == 31) // 31=ERROR_GEN_FAILURE
{
AllocConsole();
}
}
}
return success;
}
Usage example :
DWORD dwProcessId = ...;
if (signalCtrl(dwProcessId, CTRL_C_EVENT))
{
cout << "Signal sent" << endl;
}
Hit the same problem while working on modifying the look/feel of the default progress bar. Here is some more info that will hopefully help people :)
a-z0-9_.
(ie. no capitals!)R.drawable.filename
myProgressBar.setProgressDrawable(...)
, however you need can't just refer to your custom layout as R.drawable.filename
, you need to retrieve it as a Drawable
:Resources res = getResources();
myProgressBar.setProgressDrawable(res.getDrawable(R.drawable.filename);
local_settings.py, for django projects.
*~ for all projects.
You can do as @rmobis has specified in his answer, [Adding something more into it]
Using order by
twice:
MyTable::orderBy('coloumn1', 'DESC')
->orderBy('coloumn2', 'ASC')
->get();
and the second way to do it is,
Using raw order by
:
MyTable::orderByRaw("coloumn1 DESC, coloumn2 ASC");
->get();
Both will produce same query as follow,
SELECT * FROM `my_tables` ORDER BY `coloumn1` DESC, `coloumn2` ASC
As @rmobis specified in comment of first answer you can pass like an array to order by column like this,
$myTable->orders = array(
array('column' => 'coloumn1', 'direction' => 'desc'),
array('column' => 'coloumn2', 'direction' => 'asc')
);
one more way to do it is iterate
in loop,
$query = DB::table('my_tables');
foreach ($request->get('order_by_columns') as $column => $direction) {
$query->orderBy($column, $direction);
}
$results = $query->get();
Hope it helps :)
My regular question is rather "anything new or changed in repo" so whatchanged comes handy. Found it here.
git whatchanged origin/master -n 1
when you return some thing, the code exits out of the loop with what ever you are returning.so, in your code, in the first iteration, name is "one"
. so, as soon as it reaches return new Text(name)
, code exits the loop with return new Text("one")
. so, try to print it or use asynchronous returns.
Here is the solution that I recently used:
public class Test {
public String a;
public long b;
public Date c;
public String d;
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (!(obj instanceof Test)) {
return false;
}
Test testOther = (Test) obj;
return (a != null ? a.equals(testOther.a) : testOther.a == null)
&& (b == testOther.b)
&& (c != null ? c.equals(testOther.c) : testOther.c == null)
&& (d != null ? d.equals(testOther.d) : testOther.d == null);
}
}
List<String> list = Arrays.asList("as", "asda", "asd", "urff", "dfkjds", "hfad", "asd", "qadasd", "as", "asda",
"asd", "urff", "dfkjds", "hfad", "asd", "qadasd" + "as", "asda", "asd", "urff", "dfkjds", "hfad", "asd",
"qadasd", "as", "asda", "asd", "urff", "dfkjds", "hfad", "asd", "qadasd");
Method 1:
Set<String> set = new LinkedHashSet<>();
set.addAll(list);
for (String s : set) {
System.out.println(s + " : " + Collections.frequency(list, s));
}
Method 2:
int count = 1;
Map<String, Integer> map = new HashMap<>();
Set<String> set1 = new LinkedHashSet<>();
for (String s : list) {
if (!set1.add(s)) {
count = map.get(s) + 1;
}
map.put(s, count);
count = 1;
}
System.out.println(map);
Besides the third party products listed here, there is another one: NetLib Encryptionizer. However it works in a different way than the obfuscators. Obfuscators modify the assembly itself with a deobfuscation "engine" built into it. Encryptionizer encrypts the DLLs (Managed or Unmanaged) at the file level. So it does not modify the DLL except to encrypt it. The "engine" in this case is a kernel mode driver that sits between your application and the operating system. (Disclaimer: I am from NetLib Security)
I would suggest reading this url http://docs.angularjs.org/api/ngResource/service/$resource
and revaluate how you are calling your delete method of your resources.
ideally you would want to be calling the delete of the resource item itself and by not passing the id of the resource into a catch all delete method
however $http.delete accepts a config object that contains both url and data properties you could either craft the query string there or pass an object/string into the data
maybe something along these lines
$http.delete('/roles/'+roleid, {data: input});
From your log file description, I see that you need to specify cache folder for your Magento site.
Navigate to /lib/Zend/Cache/Backend/File.php, find
'cache_dir' => null,
and change it to
'cache_dir' => tmp/,
Remember to create tmp folder in your root folder of Magento to make it work.
Reference source: https://magentoexplorer.com/how-to-fix-magento-500-internal-server-errors-in-magento-and-magento-2
var a;
typeof a === 'undefined'; // true
a === undefined; // true
typeof a === typeof undefined; // true
typeof a === typeof sdfuwehflj; // true
I did some benchmarking, and found that the list class is actually faster than LinkedList for random inserting:
using System;
using System.Collections.Generic;
using System.Diagnostics;
namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
int count = 20000;
Random rand = new Random(12345);
Stopwatch watch = Stopwatch.StartNew();
LinkedList<int> ll = new LinkedList<int>();
ll.AddLast(0);
for (int i = 1; i < count; i++)
{
ll.AddBefore(ll.Find(rand.Next(i)),i);
}
Console.WriteLine("LinkedList/Random Add: {0}ms", watch.ElapsedMilliseconds);
watch = Stopwatch.StartNew();
List<int> list = new List<int>();
list.Add(0);
for (int i = 1; i < count; i++)
{
list.Insert(list.IndexOf(rand.Next(i)), i);
}
Console.WriteLine("List/Random Add: {0}ms", watch.ElapsedMilliseconds);
Console.ReadLine();
}
}
}
It takes 900 ms for the linked list and 100ms for the list class.
It creates lists of subsequent integer numbers. Each new integer is inserted after a random number which is already in the list. Maybe the List class uses something better than just an array.
If after the *, you alias the id column that is breaking the query a secondtime... and give it a new name... it magically starts working.
select IDENTITY( int ) as TempID, *, SectionID as Fix2IDs
into #TempSections
from Files_Sections
You should check type of received parameters. Maybe you should use arguments
array since second parameter can sometimes be 'parameters' and sometimes 'callback' and naming it parameters might be misleading.
I found a solution wich is to do:
<span class="visible-sm"> your code without col </span>
<span class="visible-xs"> your code with col </span>
It's not very optimized but it works. Did you find something better? It really miss a class like col-sm-0 to apply colons just to the xs size...
I add common parts as header and footer using Server Side Includes. No HTML and no JavaScript is needed. Instead, the webserver automatically adds the included code before doing anything else.
Just add the following line where you want to include your file:
<!--#include file="include_head.html" -->
In my case I had to add the public key to my repo (at Bitbucket) AND use git clone once via ssh to answer yes to the "known host" question the first time.
Performance can degrade in a matter of few thousand rows if database is not designed properly.
If you have proper indexes, use proper engines (don't use MyISAM where multiple DMLs are expected), use partitioning, allocate correct memory depending on the use and of course have good server configuration, MySQL can handle data even in terabytes!
There are always ways to improve the database performance.
Update the cert.pem
to newest file that provide by cURL: http://curl.haxx.se/ca/cacert.pem
curl -o `ruby -ropenssl -e 'p OpenSSL::X509::DEFAULT_CERT_FILE' |tr -d \"` http://curl.haxx.se/ca/cacert.pem
With CSS only? This is sort of possible on text inputs by using user-select:none
:
.print {
-webkit-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
user-select: none;
}
It's well worth noting that this will not work in browsers which do not support CSS3 or support the user-select
property. The readonly
property should be ideally given to the input markup you wish to be made readonly, but this does work as a hacky CSS alternative.
With JavaScript:
document.getElementById("myReadonlyInput").setAttribute("readonly", "true");
Edit: The CSS method no longer works in Chrome (29). The -webkit-user-select
property now appears to be ignored on input elements.
If you want to do it with multiline/multiple command/s then you can do this:
output=$( bash <<EOF
#multiline/multiple command/s
EOF
)
Or:
output=$(
#multiline/multiple command/s
)
Example:
#!/bin/bash
output="$( bash <<EOF
echo first
echo second
echo third
EOF
)"
echo "$output"
Output:
first
second
third
Good morning.
I was have the same problem with upload of multiple images. Solution was more simple than I had imagined: include [] in the name field.
<input type="file" name="files[]" multiple>
I did not make any modification on FormData.
Try not to consider using a SPA without first defining how you will address security and API stability on the server side. Then you will see some of the true advantages to using a SPA. Specifically, if you use a RESTful server that implements OAUTH 2.0 for security, you will achieve two fundamental separation of concerns that can lower your development and maintenance costs.
Hinted to earlier, but not made explicit; If your goal is to deploy Android & Apple applications, writing a JavaScript SPA that is wrapped by a native call to host the screen in a browser (Android or Apple) eliminates the need to maintain both an Apple code base and an Android code base.
You have a few options here:
Context
as an argument to FeedAdapter and keep it as class fieldContext
when you need it. I strongly suggest reading about it. There is a great tool for that -- Dagger by SquareGet it from any View
object. In your case this might work for you:
holder.pub_image.getContext()
As pub_image
is a ImageView
.
The strptime() approach does not work for me. I get another cleaner solution, using cast:
from pyspark.sql.types import DateType
spark_df1 = spark_df.withColumn("record_date",spark_df['order_submitted_date'].cast(DateType()))
#below is the result
spark_df1.select('order_submitted_date','record_date').show(10,False)
+---------------------+-----------+
|order_submitted_date |record_date|
+---------------------+-----------+
|2015-08-19 12:54:16.0|2015-08-19 |
|2016-04-14 13:55:50.0|2016-04-14 |
|2013-10-11 18:23:36.0|2013-10-11 |
|2015-08-19 20:18:55.0|2015-08-19 |
|2015-08-20 12:07:40.0|2015-08-20 |
|2013-10-11 21:24:12.0|2013-10-11 |
|2013-10-11 23:29:28.0|2013-10-11 |
|2015-08-20 16:59:35.0|2015-08-20 |
|2015-08-20 17:32:03.0|2015-08-20 |
|2016-04-13 16:56:21.0|2016-04-13 |
If you set position to other value than static
but your element's z-index
still doesn't seem to work, it may be that some parent element has z-index
set.
The stacking contexts have hierarchy, and each stacking context is considered in the stacking order of the parent's stacking context.
So with following html
div { border: 2px solid #000; width: 100px; height: 30px; margin: 10px; position: relative; background-color: #FFF; }_x000D_
#el3 { background-color: #F0F; width: 100px; height: 60px; top: -50px; }
_x000D_
<div id="el1" style="z-index: 5"></div>_x000D_
<div id="el2" style="z-index: 3">_x000D_
<div id="el3" style="z-index: 8"></div>_x000D_
</div>
_x000D_
no matter how big the z-index
of el3
will be set, it will always be under el1
because it's parent has lower stacking context. You can imagine stacking order as levels where stacking order of el3
is actually 3.8 which is lower than 5.
If you want to check stacking contexts of parent elements, you can use this:
var el = document.getElementById("#yourElement"); // or use $0 in chrome;
do {
var styles = window.getComputedStyle(el);
console.log(styles.zIndex, el);
} while(el.parentElement && (el = el.parentElement));
Small devices (landscape phones, 576px and up)
@media (min-width: 576px) {
#my-content{
width:100%;
}
// Medium devices (tablets, 768px and up)
@media (min-width: 768px) {
#my-content{
width:100%;
}
}
// Large devices (desktops, 992px and up)
@media (min-width: 992px) {
display: none;
}
// Extra large devices (large desktops, 1200px and up)
@media (min-width: 1200px) {
// Havent code only get for more informations
}
I had the same problem, there was no extension=php_soap.dll in my php.ini But this was because I had copied the php.ini from a old and previous php version (not a good idea). I found the dll in the ext directory so I just could put it myself into the php.ini extension=php_soap.dll After Apache restart all worked with soap :)
Just use a subquery with INNER JOIN, LEFT JOIN or smth else:
DELETE FROM m_productprice
WHERE m_product_id IN
(
SELECT B.m_product_id
FROM m_productprice B
INNER JOIN m_product C
ON B.m_product_id = C.m_product_id
WHERE C.upc = '7094'
AND B.m_pricelist_version_id = '1000020'
)
to optimize the query,
IN
From the C++0x draft Standard.
$5.3.5/2 - "[...]In either alternative, the value of the operand of delete may be a null pointer value.[...'"
Of course, no one would ever do 'delete' of a pointer with NULL value, but it is safe to do. Ideally one should not have code that does deletion of a NULL pointer. But it is sometimes useful when deletion of pointers (e.g. in a container) happens in a loop. Since delete of a NULL pointer value is safe, one can really write the deletion logic without explicit checks for NULL operand to delete.
As an aside, C Standard $7.20.3.2 also says that 'free' on a NULL pointer does no action.
The free function causes the space pointed to by ptr to be deallocated, that is, made available for further allocation. If ptr is a null pointer, no action occurs.
Why do you use new Array();
for hash? You need to use new Object()
instead.
And i think you will get what you want.
My Solution to this issue is a fairly simple one. I have a page that does a customer search one by the whole email and the other by a partial, the partial pulls and displays a list the list has an action link that points to a actionresult called GetByID and passes in the id
the GetByID pulls the data for the selected customer then returns
return View("Index", model);
which is the post method
You could say defaultdict
is useful for settings defaults before filling the dict and setdefault
is useful for setting defaults while or after filling the dict.
Probably the most common use case: Grouping items (in unsorted data, else use itertools.groupby
)
# really verbose
new = {}
for (key, value) in data:
if key in new:
new[key].append( value )
else:
new[key] = [value]
# easy with setdefault
new = {}
for (key, value) in data:
group = new.setdefault(key, []) # key might exist already
group.append( value )
# even simpler with defaultdict
from collections import defaultdict
new = defaultdict(list)
for (key, value) in data:
new[key].append( value ) # all keys have a default already
Sometimes you want to make sure that specific keys exist after creating a dict. defaultdict
doesn't work in this case, because it only creates keys on explicit access. Think you use something HTTP-ish with many headers -- some are optional, but you want defaults for them:
headers = parse_headers( msg ) # parse the message, get a dict
# now add all the optional headers
for headername, defaultvalue in optional_headers:
headers.setdefault( headername, defaultvalue )
That's rather hard to say - in order to really find out which one works better, you'd need to actually profile the execution times.
As a general rule of thumb, I think if you have indices on your foreign key columns, and if you're using only (or mostly) INNER JOIN conditions, then the JOIN will be slightly faster.
But as soon as you start using OUTER JOIN, or if you're lacking foreign key indexes, the IN might be quicker.
Marc
I might misunderstand, but are you trying to delete files newly ignored or do you want to ignore new modifications to these files ? In this case, the thing is working.
If you want to delete ignored files previously commited, then use
git rm –cached `git ls-files -i –exclude-standard`
git commit -m 'clean up'
You would use an MvcHtmlString
if you want to pass raw HTML to an MVC helper method and you don't want the helper method to encode the HTML.
In real life, if you are using a ORM like LINQ-to-SQL
In both cases if you don't call a ToList()
or ToArray()
then query will be executed each time it is used, so, say, you have an IQueryable<T>
and you fill 4 list boxes from it, then the query will be run against the database 4 times.
Also if you extent your query:
q.Where(x.name = "a").ToList()
Then with a IQueryable the generated SQL will contains “where name = “a”, but with a IEnumerable many more roles will be pulled back from the database, then the x.name = “a” check will be done by .NET.
Note: This answer addresses part of the problem. For a complete solution (in the form of a library), look at Paul Burke's answer.
You could use the URI to obtain document id
, and then query either MediaStore.Images.Media.EXTERNAL_CONTENT_URI
or MediaStore.Images.Media.INTERNAL_CONTENT_URI
(depending on the SD card situation).
To get document id:
// Will return "image:x*"
String wholeID = DocumentsContract.getDocumentId(uriThatYouCurrentlyHave);
// Split at colon, use second item in the array
String id = wholeID.split(":")[1];
String[] column = { MediaStore.Images.Media.DATA };
// where id is equal to
String sel = MediaStore.Images.Media._ID + "=?";
Cursor cursor = getContentResolver().
query(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
column, sel, new String[]{ id }, null);
String filePath = "";
int columnIndex = cursor.getColumnIndex(column[0]);
if (cursor.moveToFirst()) {
filePath = cursor.getString(columnIndex);
}
cursor.close();
Reference: I'm not able to find the post that this solution is taken from. I wanted to ask the original poster to contribute here. Will look some more tonight.
If you need to get the work done inside Pg:
to_json(value)
https://www.postgresql.org/docs/9.3/static/functions-json.html#FUNCTIONS-JSON-TABLE
If you are willing to use std::array
instead of built-in arrays, you may use:
std::array<int, 5> iar1 = {1,2,3,4,5};
std::array<int, 5> iar2 = {1,2,3,4,5};
if (iar1 == iar2)
Those two replaceAll
calls will always produce the same result, regardless of what x
is. However, it is important to note that the two regular expressions are not the same:
\\s
- matches single whitespace character \\s+
- matches sequence of one or more whitespace characters.In this case, it makes no difference, since you are replacing everything with an empty string (although it would be better to use \\s+
from an efficiency point of view). If you were replacing with a non-empty string, the two would behave differently.
So here is the controller code.
public IActionResult AddURLTest()
{
return ViewComponent("AddURL");
}
You can load it using JQuery load method.
$(document).ready (function(){
$("#LoadSignIn").click(function(){
$('#UserControl').load("/Home/AddURLTest");
});
});
source code link
In tomcat 7, catalina.sh has this code:
if [ "$1" = "jpda" ] ; then
if [ -z "$JPDA_TRANSPORT" ]; then
JPDA_TRANSPORT="dt_socket"
fi
if [ -z "$JPDA_ADDRESS" ]; then
JPDA_ADDRESS="8000"
fi
if [ -z "$JPDA_SUSPEND" ]; then
JPDA_SUSPEND="n"
fi
if [ -z "$JPDA_OPTS" ]; then
JPDA_OPTS="-agentlib:jdwp=transport=$JPDA_TRANSPORT,address=$JPDA_ADDRESS,server=y,suspend=$JPDA_SUSPEND"
fi
CATALINA_OPTS="$CATALINA_OPTS $JPDA_OPTS"
shift
fi
Ii implies that you can setup JPDA with:
export JPDA_TRANSPORT=dt_socket
export JPDA_ADDRESS=8000
export JPDA_SUSPEND=n
Or with:
JPDA_OPTS="-agentlib:jdwp=transport=dt_socket,address=8000,server=y,suspend=n"
And finally use:
catalina.sh jpda start
Regards
using System.Linq;
...
double total = myList.Sum(item => item.Amount);
The problem lies in:
$query = $this->db->conn->prepare('SELECT value, param FROM ws_settings WHERE name = ?');
$query->bind_param('s', $setting);
The prepare()
method can return false
and you should check for that. As for why it returns false
, perhaps the table name or column names (in SELECT
or WHERE
clause) are not correct?
Also, consider use of something like $this->db->conn->error_list
to examine errors that occurred parsing the SQL. (I'll occasionally echo the actual SQL statement strings and paste into phpMyAdmin to test, too, but there's definitely something failing there.)
Try this:
$(function () {
$('#row_dim').hide(); // this line you can avoid by adding #row_dim{display:none;} in your CSS
$('#type').change(function () {
$('#row_dim').hide();
if (this.options[this.selectedIndex].value == 'parcel') {
$('#row_dim').show();
}
});
});
Declare this in your CSS and you should be good:
* {
-moz-box-sizing: border-box;
-webkit-box-sizing: border-box;
box-sizing: border-box;
}
This solution can be implemented without using additional wrappers.
This will force the browser to calculate the width according to the "outer"-width of the div, it means the padding will be subtracted from the width.
Actually, it doesn't really work. You can find an explanation in one of the comments in the manual page: http://www.php.net/manual/en/features.file-upload.php#74692
Answer to updated question: the obvious difference is that server-side checks are reliable, client-side checks are not.
Use win APIs in your main function:
Then write another function which handles win's messages (mentioned in #1). When you receive the message WM_CREATE you have to call CreateWindow(). The class is what control is that window, for example "edit" is a text box and "button" is a.. button :). You have to specify an ID for each control (of your choice but unique among all). CreateWindow() returns a handle to that control, which needs to be memorized. When the user clicks on a control you receive the WM_COMMAND message with the ID of that control. Here you can handle that event. You might find useful SetWindowText() and GetWindowText() which allows you to set/get the text of any control.
You will need only the win32 SDK. You can get it here.
The Substring
method provides us a way to extract a particular string from the original string based on a starting position and length. If only one argument is provided, it is taken to be the starting position, and the remainder of the string is outputted.
PS > "test_string".Substring(0,4)
Test
PS > "test_string".Substring(4)
_stringPS >
But this is easier...
$s = 'Hello World is in here Hello World!'
$p = 'Hello World'
$s -match $p
And finally, to recurse through a directory selecting only the .txt files and searching for occurrence of "Hello World":
dir -rec -filter *.txt | Select-String 'Hello World'
If You can get this error even with all the correct MapRoutes in your area registration and all other basic configurations are fine.
This is the situation:
I have used below mentioned code from Jquery file to post back data and then load a view from controller action method.
$.post("/Customers/ReturnRetailOnlySales", {petKey: '<%: Model.PetKey %>'});
Above jQuery code I didn't mentioned success callback function. What was happened there is after finishing a post back scenario on action method, without routing to my expected view it came back to Jquery side and gave view not found error as above.
Then I gave a solution like below and its working without any problem.
$.post("/Customers/ReturnRetailOnlySales", {petKey: '<%: Model.PetKey %>'},
function (data) {
var url = Sys.Url.route('PetDetail', { action: "ReturnRetailOnlySalesItems", controller: "Customers",petKey: '<%: Model.PetKey %>'});
window.location = url;});
Note: I sent my request inside the success callback function to my expected views action method.Then view engine found a relevant area's view file and load correctly.
I have collected the following functionality from some other threads and it works for me in Ubuntu.
import os
import socket
import multiprocessing
import subprocess
import os
def pinger(job_q, results_q):
"""
Do Ping
:param job_q:
:param results_q:
:return:
"""
DEVNULL = open(os.devnull, 'w')
while True:
ip = job_q.get()
if ip is None:
break
try:
subprocess.check_call(['ping', '-c1', ip],
stdout=DEVNULL)
results_q.put(ip)
except:
pass
def get_my_ip():
"""
Find my IP address
:return:
"""
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.connect(("8.8.8.8", 80))
ip = s.getsockname()[0]
s.close()
return ip
def map_network(pool_size=255):
"""
Maps the network
:param pool_size: amount of parallel ping processes
:return: list of valid ip addresses
"""
ip_list = list()
# get my IP and compose a base like 192.168.1.xxx
ip_parts = get_my_ip().split('.')
base_ip = ip_parts[0] + '.' + ip_parts[1] + '.' + ip_parts[2] + '.'
# prepare the jobs queue
jobs = multiprocessing.Queue()
results = multiprocessing.Queue()
pool = [multiprocessing.Process(target=pinger, args=(jobs, results)) for i in range(pool_size)]
for p in pool:
p.start()
# cue hte ping processes
for i in range(1, 255):
jobs.put(base_ip + '{0}'.format(i))
for p in pool:
jobs.put(None)
for p in pool:
p.join()
# collect he results
while not results.empty():
ip = results.get()
ip_list.append(ip)
return ip_list
if __name__ == '__main__':
print('Mapping...')
lst = map_network()
print(lst)
You should stick to the NSInteger
data types when possible. So you'd create the number like that:
NSInteger myValue = 1;
NSNumber *number = [NSNumber numberWithInteger: myValue];
Decoding works with the integerValue
method then:
NSInteger value = [number integerValue];
I combined the answer above with certbot SSL cert and CORS access-control-allow-headers and got it working so I thought I would share the results.
Apache httpd.conf added to the bottom of the file:
LoadModule proxy_module modules/mod_proxy.so
LoadModule proxy_http_module modules/mod_proxy_http.so
Apache VirtualHost settings (doc root for PHP is under Apache and SSL with Certbot, while node.js/socket.io site runs on port 3000 - and uses SSL cert from Apache) Also notice the node.js site uses the proxy for the folder /nodejs, socket.io, and ws (websockets):
<IfModule mod_ssl.c>
<VirtualHost *:443>
ServerName www.example.com
ServerAlias www.example.com
DocumentRoot /var/html/www.example.com
ErrorLog /var/html/log/error.log
CustomLog /var/html/log/requests.log combined
SSLCertificateFile /etc/letsencrypt/live/www.example.com/fullchain.pem
SSLCertificateKeyFile /etc/letsencrypt/live/www.example.com/privkey.pem
Include /etc/letsencrypt/options-ssl-apache.conf
RewriteEngine On
RewriteCond %{REQUEST_URI} ^socket.io [NC]
RewriteCond %{QUERY_STRING} transport=websocket [NC]
RewriteRule /{.*} ws://localhost:3000/$1 [P,L]
RewriteCond %{HTTP:Connection} Upgrade [NC]
RewriteRule /(.*) ws://localhost:3000/$1 [P,L]
ProxyPass /nodejs http://localhost:3000/
ProxyPassReverse /nodejs http://localhost:3000/
ProxyPass /socket.io http://localhost:3000/socket.io
ProxyPassReverse /socket.io http://localhost:3000/socket.io
ProxyPass /socket.io ws://localhost:3000/socket.io
ProxyPassReverse /socket.io ws://localhost:3000/socket.io
</VirtualHost>
</IfModule>
Then my node.js app (app.js):
var express = require('express');
var app = express();
app.use(function(req, res, next) {
res.header("Access-Control-Allow-Origin", "*");
res.header("Access-Control-Allow-Headers", "X-Requested-With");
res.header("Access-Control-Allow-Headers", "Content-Type");
res.header("Access-Control-Allow-Methods", "PUT, GET, POST, DELETE, OPTIONS");
next();
});
var http = require('http').Server(app);
var io = require('socket.io')(http);
http.listen({host:'0.0.0.0',port:3000});
I force a ip4 listener, but that is optional - you can substitute:
http.listen(3000);
node.js app (app.js) code continues with:
io.of('/nodejs').on('connection', function(socket) {
//optional settings:
io.set('heartbeat timeout', 3000);
io.set('heartbeat interval', 1000);
//listener for when a user is added
socket.on('add user', function(data) {
socket.join('AnyRoomName');
socket.broadcast.emit('user joined', data);
});
//listener for when a user leaves
socket.on('remove user', function(data) {
socket.leave('AnyRoomName');
socket.broadcast.emit('user left', data);
});
//sample listener for any other function
socket.on('named-event', function(data) {
//code....
socket.broadcast.emit('named-event-broadcast', data);
});
// add more listeners as needed... use different named-events...
});
finally, on the client side (created as nodejs.js):
//notice the /nodejs path
var socket = io.connect('https://www.example.com/nodejs');
//listener for user joined
socket.on('user joined', function(data) {
// code... data shows who joined...
});
//listener for user left
socket.on('user left', function(data) {
// code... data shows who left...
});
// sample listener for any function:
socket.on('named-event-broadcast', function(data) {
// this receives the broadcast data (I use json then parse and execute code)
console.log('data1=' + data.data1);
console.log('data2=' + data.data2);
});
// sample send broadcast json data for user joined:
socket.emit('user joined', {
'userid': 'userid-value',
'username':'username-value'
});
// sample send broadcast json data for user left
//(I added the following with an event listener for 'beforeunload'):
// socket.emit('user joined', {
// 'userid': 'userid-value',
// 'username':'username-value'
// });
// sample send broadcast json data for any named-event:
socket.emit('named-event', {
'data1': 'value1',
'data2':'value2'
});
In this example when the JS loads, it will emit to the socket a "named-event" sending the data in JSON to the node.js/socket.io server.
Using the io and socket on the server under path /nodejs (connected by client), receives the data an then resends it as a broadcast. Any other users in the socket would receive the data with their listener "named-event-broadcast". Note that the sender does not receive their own broadcast.
Are you running a real-time antivirus scanner by any chance ? If so, you could try (temporarily) disabling it to see if that is what is accessing the file you are trying to delete. (Chris' suggestion to use Sysinternals process explorer is a good one).
First, Set :
ALTER TABLE person ALTER COLUMN phone DROP NOT NULL;
To get rid of the fixed height property you can set it to the default value:
height: auto;
The JSONP comes to mind:
JSONP or "JSON with padding" is a complement to the base JSON data format, a usage pattern that allows a page to request and more meaningfully use JSON from a server other than the primary server. JSONP is an alternative to a more recent method called Cross-Origin Resource Sharing.
I see two possibilities for what you are trying to do:
You want your webpage, running on a server, to find the file on the computer that you originally designed it?
You want it to fetch it from the pc that is viewing at the page?
Option 1 just doesn't make sense :)
Option 2 would be a security hole, the browser prohibits a web page (served from the web) from loading content on the viewer's machine.
Kyle Hudson told you what you need to do, but that is so basic that I find it hard to believe this is all you want to do.
Here is a function provides you more options to set min of special chars, min of upper chars, min of lower chars and min of number
function randomPassword(len = 8, minUpper = 0, minLower = 0, minNumber = -1, minSpecial = -1) {
let chars = String.fromCharCode(...Array(127).keys()).slice(33),//chars
A2Z = String.fromCharCode(...Array(91).keys()).slice(65),//A-Z
a2z = String.fromCharCode(...Array(123).keys()).slice(97),//a-z
zero2nine = String.fromCharCode(...Array(58).keys()).slice(48),//0-9
specials = chars.replace(/\w/g, '')
if (minSpecial < 0) chars = zero2nine + A2Z + a2z
if (minNumber < 0) chars = chars.replace(zero2nine, '')
let minRequired = minSpecial + minUpper + minLower + minNumber
let rs = [].concat(
Array.from({length: minSpecial ? minSpecial : 0}, () => specials[Math.floor(Math.random() * specials.length)]),
Array.from({length: minUpper ? minUpper : 0}, () => A2Z[Math.floor(Math.random() * A2Z.length)]),
Array.from({length: minLower ? minLower : 0}, () => a2z[Math.floor(Math.random() * a2z.length)]),
Array.from({length: minNumber ? minNumber : 0}, () => zero2nine[Math.floor(Math.random() * zero2nine.length)]),
Array.from({length: Math.max(len, minRequired) - (minRequired ? minRequired : 0)}, () => chars[Math.floor(Math.random() * chars.length)]),
)
return rs.sort(() => Math.random() > Math.random()).join('')
}
randomPassword(12, 1, 1, -1, -1)// -> DDYxdVcvIyLgeB
randomPassword(12, 1, 1, 1, -1)// -> KYXTbKf9vpMu0
randomPassword(12, 1, 1, 1, 1)// -> hj|9)V5YKb=7
This is my solution using only CSS (Jsfiddle: http://jsfiddle.net/xykPT/).
div.options > label > input {_x000D_
visibility: hidden;_x000D_
}_x000D_
_x000D_
div.options > label {_x000D_
display: block;_x000D_
margin: 0 0 0 -10px;_x000D_
padding: 0 0 20px 0; _x000D_
height: 20px;_x000D_
width: 150px;_x000D_
}_x000D_
_x000D_
div.options > label > img {_x000D_
display: inline-block;_x000D_
padding: 0px;_x000D_
height:30px;_x000D_
width:30px;_x000D_
background: none;_x000D_
}_x000D_
_x000D_
div.options > label > input:checked +img { _x000D_
background: url(http://cdn1.iconfinder.com/data/icons/onebit/PNG/onebit_34.png);_x000D_
background-repeat: no-repeat;_x000D_
background-position:center center;_x000D_
background-size:30px 30px;_x000D_
}
_x000D_
<div class="options">_x000D_
<label title="item1">_x000D_
<input type="radio" name="foo" value="0" /> _x000D_
Item 1_x000D_
<img />_x000D_
</label>_x000D_
<label title="item2">_x000D_
<input type="radio" name="foo" value="1" />_x000D_
Item 2_x000D_
<img />_x000D_
</label> _x000D_
<label title="item3">_x000D_
<input type="radio" name="foo" value="2" />_x000D_
Item 3_x000D_
<img />_x000D_
</label>_x000D_
</div>
_x000D_
Just put this line :
builder.setAutoCancel(true);
And the full code is :
NotificationCompat.Builder builder = new NotificationCompat.Builder(this);
builder.setSmallIcon(android.R.drawable.ic_dialog_alert);
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse("https://www.google.co.in/"));
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, 0);
builder.setContentIntent(pendingIntent);
builder.setLargeIcon(BitmapFactory.decodeResource(getResources(), R.mipmap.misti_ic));
builder.setContentTitle("Notifications Title");
builder.setContentText("Your notification content here.");
builder.setSubText("Tap to view the website.");
Toast.makeText(getApplicationContext(), "The notification has been created!!", Toast.LENGTH_LONG).show();
NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
builder.setAutoCancel(true);
// Will display the notification in the notification bar
notificationManager.notify(1, builder.build());
You can do this with the hex codec. ie:
>>> s='000000000000484240FA063DE5D0B744ADBED63A81FAEA390000C8428640A43D5005BD44'
>>> s.decode('hex')
'\x00\x00\x00\x00\x00\x00HB@\xfa\x06=\xe5\xd0\xb7D\xad\xbe\xd6:\x81\xfa\xea9\x00\x00\xc8B\x86@\xa4=P\x05\xbdD'
In Turkish language, mb_convert_encoding or any other charset conversion did not work.
And also urlencode did not work because of space char converted to + char. It must be %20 for percent encoding.
This one worked!
$url = rawurlencode($url);
$url = str_replace("%3A", ":", $url);
$url = str_replace("%2F", "/", $url);
$data = file_get_contents($url);
Another solution, without regard to security (I also think it is better to keep the credentials in another file or in a database) is to encrypt the password with gpg and insert it in the script.
I use a password-less gpg key pair that I keep in a usb. (Note: When you export this key pair don't use --armor, export them in binary format).
First encrypt your password:
EDIT: Put a space before this command, so it is not recorded by the bash history.
echo -n "pAssw0rd" | gpg --armor --no-default-keyring --keyring /media/usb/key.pub --recipient [email protected] --encrypt
That will be print out the gpg encrypted password in the standart output. Copy the whole message and add this to the script:
password=$(gpg --batch --quiet --no-default-keyring --secret-keyring /media/usb/key.priv --decrypt <<EOF
-----BEGIN PGP MESSAGE-----
hQEMA0CjbyauRLJ8AQgAkZT5gK8TrdH6cZEy+Ufl0PObGZJ1YEbshacZb88RlRB9
h2z+s/Bso5HQxNd5tzkwulvhmoGu6K6hpMXM3mbYl07jHF4qr+oWijDkdjHBVcn5
0mkpYO1riUf0HXIYnvCZq/4k/ajGZRm8EdDy2JIWuwiidQ18irp07UUNO+AB9mq8
5VXUjUN3tLTexg4sLZDKFYGRi4fyVrYKGsi0i5AEHKwn5SmTb3f1pa5yXbv68eYE
lCVfy51rBbG87UTycZ3gFQjf1UkNVbp0WV+RPEM9JR7dgR+9I8bKCuKLFLnGaqvc
beA3A6eMpzXQqsAg6GGo3PW6fMHqe1ZCvidi6e4a/dJDAbHq0XWp93qcwygnWeQW
Ozr1hr5mCa+QkUSymxiUrRncRhyqSP0ok5j4rjwSJu9vmHTEUapiyQMQaEIF2e2S
/NIWGg==
=uriR
-----END PGP MESSAGE-----
EOF)
In this way only if the usb is mounted in the system the password can be decrypted. Of course you can also import the keys into the system (less secure, or no security at all) or you can protect the private key with password (so it can not be automated).
This should cover all cases:
function empty( val ) {
// test results
//---------------
// [] true, empty array
// {} true, empty object
// null true
// undefined true
// "" true, empty string
// '' true, empty string
// 0 false, number
// true false, boolean
// false false, boolean
// Date false
// function false
if (val === undefined)
return true;
if (typeof (val) == 'function' || typeof (val) == 'number' || typeof (val) == 'boolean' || Object.prototype.toString.call(val) === '[object Date]')
return false;
if (val == null || val.length === 0) // null or 0 length array
return true;
if (typeof (val) == "object") {
// empty object
var r = true;
for (var f in val)
r = false;
return r;
}
return false;
}
You can use git commit -i
for most cases but in case it doesn't work
You need to do git commit -m "your_merge_message"
. During a merge conflict you cannot merge one single file so you need to
git add your_file.txt
)git commit -m "your_merge_message"
do url_raw.cast_to_raw()
support in oracle 6
try this
ArrayList<Datapoint > searchList = new ArrayList<Datapoint >();
String search = "a";
int searchListLength = searchList.size();
for (int i = 0; i < searchListLength; i++) {
if (searchList.get(i).getName().contains(search)) {
//Do whatever you want here
}
}
In case you want to utilize .then() which has a subtle difference in comparison with .done() :
return $.post(url, payload)
.then(
function (result, textStatus, jqXHR) {
return result;
},
function (jqXHR, textStatus, errorThrown) {
return console.error(errorThrown);
});
IMDB themselves seem to distribute data, but only in text files:
http://www.imdb.com/interfaces
there are several APIs around this that you can Google. Screen scraping is explicitly forbidden. A official API seems to be in the works, but has been that for years already.
Finally my issue got resolved. I was importing the project as "Existing project into workspace". This was completely wrong. After that I selected "Existing Maven project" and after that some few hiccups and all errors were removed. In this process I got to learn so many things in Maven which are important for a new comer in Maven project.
$address = str_replace(" ", "+", $address);
$json = file_get_contents("http://maps.google.com/maps/api/geocode/json?address=$address&sensor=false®ion=$region");
$json = json_decode($json);
$lat = $json->{'results'}[0]->{'geometry'}->{'location'}->{'lat'};
$long = $json->{'results'}[0]->{'geometry'}->{'location'}->{'lng'};
Suppose you have a project called "TestProject" on Eclipse and your workspace folder is located at E:/eclipse/workspace. When you build an Eclipse project, your classpath is then e:/eclipse/workspace/TestProject
. When you try to read "staedteliste.txt", you're trying to access the file at e:/eclipse/workspace/TestProject/staedteliste.txt
.
If you want to have a separate folder for your project, then create the Files folder under TestProject and then access the file with (the relative path) /Files/staedteliste.txt
. If you put the file under the src folder, then you have to access it using /src/staedteliste.txt
. A Files folder inside the src folder would be /src/Files/staedteliste.txt
Instead of using the the relative path you can use the absolute one by adding e:/eclipse/workspace/
at the beginning, but using the relative path is better because you can move the project without worrying about refactoring as long as the project folder structure is the same.
Nothing worked and finally got it working using resource @Here and Here; Just remember for OSX Mavericks (10.9) should use PHP 5.4.17 or Stable PHP 5.4.22 source to compile mcrypt. Php Source 5.4.22 here
When you are only dealing with a single table anyway, the biggest practical difference I have found is that DataSet has a "HasChanges" method but DataTable does not. Both have a "GetChanges" however, so you can use that and test for null.
C does not really have multi-dimensional arrays, but there are several ways to simulate them. The way to pass such arrays to a function depends on the way used to simulate the multiple dimensions:
1) Use an array of arrays. This can only be used if your array bounds are fully determined at compile time, or if your compiler supports VLA's:
#define ROWS 4
#define COLS 5
void func(int array[ROWS][COLS])
{
int i, j;
for (i=0; i<ROWS; i++)
{
for (j=0; j<COLS; j++)
{
array[i][j] = i*j;
}
}
}
void func_vla(int rows, int cols, int array[rows][cols])
{
int i, j;
for (i=0; i<rows; i++)
{
for (j=0; j<cols; j++)
{
array[i][j] = i*j;
}
}
}
int main()
{
int x[ROWS][COLS];
func(x);
func_vla(ROWS, COLS, x);
}
2) Use a (dynamically allocated) array of pointers to (dynamically allocated) arrays. This is used mostly when the array bounds are not known until runtime.
void func(int** array, int rows, int cols)
{
int i, j;
for (i=0; i<rows; i++)
{
for (j=0; j<cols; j++)
{
array[i][j] = i*j;
}
}
}
int main()
{
int rows, cols, i;
int **x;
/* obtain values for rows & cols */
/* allocate the array */
x = malloc(rows * sizeof *x);
for (i=0; i<rows; i++)
{
x[i] = malloc(cols * sizeof *x[i]);
}
/* use the array */
func(x, rows, cols);
/* deallocate the array */
for (i=0; i<rows; i++)
{
free(x[i]);
}
free(x);
}
3) Use a 1-dimensional array and fixup the indices. This can be used with both statically allocated (fixed-size) and dynamically allocated arrays:
void func(int* array, int rows, int cols)
{
int i, j;
for (i=0; i<rows; i++)
{
for (j=0; j<cols; j++)
{
array[i*cols+j]=i*j;
}
}
}
int main()
{
int rows, cols;
int *x;
/* obtain values for rows & cols */
/* allocate the array */
x = malloc(rows * cols * sizeof *x);
/* use the array */
func(x, rows, cols);
/* deallocate the array */
free(x);
}
4) Use a dynamically allocated VLA. One advantage of this over option 2 is that there is a single memory allocation; another is that less memory is needed because the array of pointers is not required.
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
extern void func_vla(int rows, int cols, int array[rows][cols]);
extern void get_rows_cols(int *rows, int *cols);
extern void dump_array(const char *tag, int rows, int cols, int array[rows][cols]);
void func_vla(int rows, int cols, int array[rows][cols])
{
for (int i = 0; i < rows; i++)
{
for (int j = 0; j < cols; j++)
{
array[i][j] = (i + 1) * (j + 1);
}
}
}
int main(void)
{
int rows, cols;
get_rows_cols(&rows, &cols);
int (*array)[cols] = malloc(rows * cols * sizeof(array[0][0]));
/* error check omitted */
func_vla(rows, cols, array);
dump_array("After initialization", rows, cols, array);
free(array);
return 0;
}
void dump_array(const char *tag, int rows, int cols, int array[rows][cols])
{
printf("%s (%dx%d):\n", tag, rows, cols);
for (int i = 0; i < rows; i++)
{
for (int j = 0; j < cols; j++)
printf("%4d", array[i][j]);
putchar('\n');
}
}
void get_rows_cols(int *rows, int *cols)
{
srand(time(0)); // Only acceptable because it is called once
*rows = 5 + rand() % 10;
*cols = 3 + rand() % 12;
}
I would recommend this solution. You need to inherit and override method run
.
import sys
import os
from signal import SIGTERM
from abc import ABCMeta, abstractmethod
class Daemon(object):
__metaclass__ = ABCMeta
def __init__(self, pidfile):
self._pidfile = pidfile
@abstractmethod
def run(self):
pass
def _daemonize(self):
# decouple threads
pid = os.fork()
# stop first thread
if pid > 0:
sys.exit(0)
# write pid into a pidfile
with open(self._pidfile, 'w') as f:
print >> f, os.getpid()
def start(self):
# if daemon is started throw an error
if os.path.exists(self._pidfile):
raise Exception("Daemon is already started")
# create and switch to daemon thread
self._daemonize()
# run the body of the daemon
self.run()
def stop(self):
# check the pidfile existing
if os.path.exists(self._pidfile):
# read pid from the file
with open(self._pidfile, 'r') as f:
pid = int(f.read().strip())
# remove the pidfile
os.remove(self._pidfile)
# kill daemon
os.kill(pid, SIGTERM)
else:
raise Exception("Daemon is not started")
def restart(self):
self.stop()
self.start()
You can make the file accessible via a web server then you can use curl or lynx
Brackets are used around identifiers, so your code will look for the field %'%
in the Header
table. You want to use a string insteaed. To put an apostrophe in a string literal you use double apostrophes.
SELECT *
FROM Header WHERE userID LIKE '%''%'
I have answered on this.
In my case, the problem was because of
Video Downloader professional
andAdBlock
In short, this problem occurs due to some google chrome plugins