You can set aliases for the columns that you are selecting:
$query = 'SELECT news.id AS newsId, user.id AS userId, [OTHER FIELDS HERE] FROM news JOIN users ON news.user = user.id'
There are actually a few ways this can be done:
1: Download
You can download the latest version of jQuery and then include it in your page with a standard HTML script tag. This can be done within the master or an individual page.
HTML5
<script src="/scripts/jquery-2.1.0.min.js"></script>
HTML4
<script src="/scripts/jquery-2.1.0.min.js" type="text/javascript"></script>
2: Content Delivery Network
You can include jQuery to your site using a CDN (Content Delivery Network) such as Google's. This should help reduce page load times if the user has already visited a site using the same version from the same CDN.
<script src="//ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>
3: NuGet Package Manager
Lastly, (my preferred) use NuGet which is shipped with Visual Studio and Visual Studio Express. This is accessed from right-clicking on your project and clicking Manage NuGet Packages.
NuGet is an open source Library Package Manager that comes as a Visual Studio extension and that makes it very easy to add, remove, and update external libraries in your Visual Studio projects and websites. Beginning ASP.NET 4.5 in C# and VB.NET, WROX, 2013
Once installed, a new Folder group will appear in your Solution Explorer called Scripts
. Simply drag and drop the file you wish to include onto your page of choice.
This method is ideal for larger projects because if you choose to remove the files, or change versions later (though the package manager) if will automatically remove/update any reference to that file within your project.
The only downside to this approach is it does not use a CDN to host the file so page load time may be slightly slower the first time the user visits your site.
Performance wise, they are exactly the same (at least in SQL Server) but be aware that they are deprecating this join syntax and it's not supported by sql server2005 out of the box.
I think you are thinking of the deprecated *= and =* operators vs. "outer join".
I have just now tested the two formats given, and they work properly on a SQL Server 2008 database. In my case they yielded identical execution plans, but I couldn't confidently say that this would always be true.
Oh there are many differences you will need to consider
Views for selection:
Views for insertion/updates:
Drawbacks
You are missing a comma in your statement.
Try this:
data[data[, "Var1"]>10, ]
Or:
data[data$Var1>10, ]
Or:
subset(data, Var1>10)
As an example, try it on the built-in dataset, mtcars
data(mtcars)
mtcars[mtcars[, "mpg"]>25, ]
mpg cyl disp hp drat wt qsec vs am gear carb
Fiat 128 32.4 4 78.7 66 4.08 2.200 19.47 1 1 4 1
Honda Civic 30.4 4 75.7 52 4.93 1.615 18.52 1 1 4 2
Toyota Corolla 33.9 4 71.1 65 4.22 1.835 19.90 1 1 4 1
Fiat X1-9 27.3 4 79.0 66 4.08 1.935 18.90 1 1 4 1
Porsche 914-2 26.0 4 120.3 91 4.43 2.140 16.70 0 1 5 2
Lotus Europa 30.4 4 95.1 113 3.77 1.513 16.90 1 1 5 2
mtcars[mtcars$mpg>25, ]
mpg cyl disp hp drat wt qsec vs am gear carb
Fiat 128 32.4 4 78.7 66 4.08 2.200 19.47 1 1 4 1
Honda Civic 30.4 4 75.7 52 4.93 1.615 18.52 1 1 4 2
Toyota Corolla 33.9 4 71.1 65 4.22 1.835 19.90 1 1 4 1
Fiat X1-9 27.3 4 79.0 66 4.08 1.935 18.90 1 1 4 1
Porsche 914-2 26.0 4 120.3 91 4.43 2.140 16.70 0 1 5 2
Lotus Europa 30.4 4 95.1 113 3.77 1.513 16.90 1 1 5 2
subset(mtcars, mpg>25)
mpg cyl disp hp drat wt qsec vs am gear carb
Fiat 128 32.4 4 78.7 66 4.08 2.200 19.47 1 1 4 1
Honda Civic 30.4 4 75.7 52 4.93 1.615 18.52 1 1 4 2
Toyota Corolla 33.9 4 71.1 65 4.22 1.835 19.90 1 1 4 1
Fiat X1-9 27.3 4 79.0 66 4.08 1.935 18.90 1 1 4 1
Porsche 914-2 26.0 4 120.3 91 4.43 2.140 16.70 0 1 5 2
Lotus Europa 30.4 4 95.1 113 3.77 1.513 16.90 1 1 5 2
There is a pretty good example on https://developers.google.com/maps/documentation/javascript/examples/geocoding-simple
To shorten it up a little:
geocoder = new google.maps.Geocoder();
function codeAddress() {
//In this case it gets the address from an element on the page, but obviously you could just pass it to the method instead
var address = document.getElementById( 'address' ).value;
geocoder.geocode( { 'address' : address }, function( results, status ) {
if( status == google.maps.GeocoderStatus.OK ) {
//In this case it creates a marker, but you can get the lat and lng from the location.LatLng
map.setCenter( results[0].geometry.location );
var marker = new google.maps.Marker( {
map : map,
position: results[0].geometry.location
} );
} else {
alert( 'Geocode was not successful for the following reason: ' + status );
}
} );
}
Maybe it's the comma in your if
condition.
function answers() {
var answer=document.getElementById("mySelect");
if(answer[answer.selectedIndex].value == "To measure time.") {
alert("That's correct!");
}
}
You can also write it like this.
function answers(){
document.getElementById("mySelect").value!="To measure time."||(alert('That's correct!'))
}
Wrap your all statements in !IsPostBack
condition on page load.
protected void Page_Load(object sender, EventArgs e)
{
if(!IsPostBack)
{
// all statements
}
}
This will fix your issue.
As a rule of thumb, the safest bet towards making your document be treated properly by all web servers, proxies, and client browsers, is probably the following:
In terms of the RFC 3023 spec, which some browsers fail to implement properly, the major difference in the content types is in how clients are supposed to treat the character encoding, as follows:
For application/xml, application/xml-dtd, application/xml-external-parsed-entity, or any one of the subtypes of application/xml such as application/atom+xml, application/rss+xml or application/rdf+xml, the character encoding is determined in this order:
For text/xml, text/xml-external-parsed-entity, or a subtype like text/foo+xml, the encoding attribute of the XML declaration within the document is ignored, and the character encoding is:
Most parsers don't implement the spec; they ignore the HTTP Context-Type and just use the encoding in the document. With so many ill-formed documents out there, that's unlikely to change any time soon.
We have two commands, first is "condition_command", second is "result_command". If we need run "result_command" when "condition_command" is successful (errorlevel=0):
condition_command && result_command
If we need run "result_command" when "condition_command" is fail:
condition_command || result_command
Therefore for run "some_command" in case when we have "string" in the file "status.txt":
find "string" status.txt 1>nul && some_command
in case when we have not "string" in the file "status.txt":
find "string" status.txt 1>nul || some_command
Most devices have some form of emulated storage. if they support sd cards they are usually mounted to /sdcard
(or some variation of that name) which is usually symlinked to to a directory in /storage
like /storage/sdcard0
or /storage/0
sometimes the emulated storage is mounted to /sdcard
and the actual path is something like /storage/emulated/legacy. You should be able to use to get the downloads directory. You are best off using the api calls to get directories.
Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS);
Since the filesystems and sdcard support varies among devices.
see similar question for more info how to access downloads folder in android?
Usually the DownloadManager handles downloads and the files are then accessed by requesting the file's uri fromthe download manager using a file id to get where file was places which would usually be somewhere in the sdcard/ real or emulated since apps can only read data from certain places on the filesystem outside of their data directory like the sdcard
You can't influence neither type (tab/window) nor dimensions that way. You'll have to use JavaScript's window.open() for that.
Step 1: Install update http://httpjunkie.com/2013/340/develop-mvc-5-with-asp-net-identity-in-visual-studio-2012/.
OK, so that gets you to be able to start from a blank ASP.NET MVC project, but a lot of people want the FULL INTERNET APPLICATION as shipped with Visual Studio 2013.
So I have a step 2: http://httpjunkie.com/2013/340/develop-mvc-5-with-asp-net-identity-in-visual-studio-2012/
If you follow that tutorial on my website I follow it up with a full install of Foundation 5 and a cool Hybrid OffCanvas/Top-Bar navigation.
I originally posted the benchmarks below with the purpose of recommending numpy.corrcoef
, foolishly not realizing that the original question already uses corrcoef
and was in fact asking about higher order polynomial fits. I've added an actual solution to the polynomial r-squared question using statsmodels, and I've left the original benchmarks, which while off-topic, are potentially useful to someone.
statsmodels
has the capability to calculate the r^2
of a polynomial fit directly, here are 2 methods...
import statsmodels.api as sm
import statsmodels.formula.api as smf
# Construct the columns for the different powers of x
def get_r2_statsmodels(x, y, k=1):
xpoly = np.column_stack([x**i for i in range(k+1)])
return sm.OLS(y, xpoly).fit().rsquared
# Use the formula API and construct a formula describing the polynomial
def get_r2_statsmodels_formula(x, y, k=1):
formula = 'y ~ 1 + ' + ' + '.join('I(x**{})'.format(i) for i in range(1, k+1))
data = {'x': x, 'y': y}
return smf.ols(formula, data).fit().rsquared # or rsquared_adj
To further take advantage of statsmodels
, one should also look at the fitted model summary, which can be printed or displayed as a rich HTML table in Jupyter/IPython notebook. The results object provides access to many useful statistical metrics in addition to rsquared
.
model = sm.OLS(y, xpoly)
results = model.fit()
results.summary()
Below is my original Answer where I benchmarked various linear regression r^2 methods...
The corrcoef function used in the Question calculates the correlation coefficient, r
, only for a single linear regression, so it doesn't address the question of r^2
for higher order polynomial fits. However, for what it's worth, I've come to find that for linear regression, it is indeed the fastest and most direct method of calculating r
.
def get_r2_numpy_corrcoef(x, y):
return np.corrcoef(x, y)[0, 1]**2
These were my timeit results from comparing a bunch of methods for 1000 random (x, y) points:
r
calculation)
r
calculation)
r
calculation)
r
as an output)
The corrcoef method narrowly beats calculating the r^2 "manually" using numpy methods. It is >5X faster than the polyfit method and ~12X faster than the scipy.linregress. Just to reinforce what numpy is doing for you, it's 28X faster than pure python. I'm not well-versed in things like numba and pypy, so someone else would have to fill those gaps, but I think this is plenty convincing to me that corrcoef
is the best tool for calculating r
for a simple linear regression.
Here's my benchmarking code. I copy-pasted from a Jupyter Notebook (hard not to call it an IPython Notebook...), so I apologize if anything broke on the way. The %timeit magic command requires IPython.
import numpy as np
from scipy import stats
import statsmodels.api as sm
import math
n=1000
x = np.random.rand(1000)*10
x.sort()
y = 10 * x + (5+np.random.randn(1000)*10-5)
x_list = list(x)
y_list = list(y)
def get_r2_numpy(x, y):
slope, intercept = np.polyfit(x, y, 1)
r_squared = 1 - (sum((y - (slope * x + intercept))**2) / ((len(y) - 1) * np.var(y, ddof=1)))
return r_squared
def get_r2_scipy(x, y):
_, _, r_value, _, _ = stats.linregress(x, y)
return r_value**2
def get_r2_statsmodels(x, y):
return sm.OLS(y, sm.add_constant(x)).fit().rsquared
def get_r2_python(x_list, y_list):
n = len(x_list)
x_bar = sum(x_list)/n
y_bar = sum(y_list)/n
x_std = math.sqrt(sum([(xi-x_bar)**2 for xi in x_list])/(n-1))
y_std = math.sqrt(sum([(yi-y_bar)**2 for yi in y_list])/(n-1))
zx = [(xi-x_bar)/x_std for xi in x_list]
zy = [(yi-y_bar)/y_std for yi in y_list]
r = sum(zxi*zyi for zxi, zyi in zip(zx, zy))/(n-1)
return r**2
def get_r2_numpy_manual(x, y):
zx = (x-np.mean(x))/np.std(x, ddof=1)
zy = (y-np.mean(y))/np.std(y, ddof=1)
r = np.sum(zx*zy)/(len(x)-1)
return r**2
def get_r2_numpy_corrcoef(x, y):
return np.corrcoef(x, y)[0, 1]**2
print('Python')
%timeit get_r2_python(x_list, y_list)
print('Numpy polyfit')
%timeit get_r2_numpy(x, y)
print('Numpy Manual')
%timeit get_r2_numpy_manual(x, y)
print('Numpy corrcoef')
%timeit get_r2_numpy_corrcoef(x, y)
print('Scipy')
%timeit get_r2_scipy(x, y)
print('Statsmodels')
%timeit get_r2_statsmodels(x, y)
To view the stdout, you can start the docker container with -i
. This of course does not enable you to leave the started process and explore the container.
docker start -i containerid
Alternatively you can view the filesystem of the container at
/var/lib/docker/containers/containerid/root/
However neither of these are ideal. If you want to view logs or any persistent storage, the correct way to do so would be attaching a volume with the -v
switch when you use docker run
. This would mean you can inspect log files either on the host or attach them to another container and inspect them there.
Code Complete is the number one choice, but I'd also cite Gang of Four's Design Patterns and Craig Larman's Applying UML and Patterns.
The Timeless Way of Building, by Christopher Alexander, is another great one. Even though it's about archtecture, it's included in the bibliography of many great programming books I have already read.
Another one, from which I'm learning lots of new things, is Data Access Patterns, by Clifton Nock.
If you want to use the tokudb plugin This can happen if you have less than 5% (by default) of free space.
see the option: tokudb_fs_reserve_percent
"Best" helpdesk system is very subjective, of course, but I recommend Request Tracker (aka RT).
It has a default workflow built in, but is easily configured for alternate workflows using the "Scrips" and templates. Very extensible if you want.
Consider using the ANR-Watchdog library to accurately track and capture ANR stack traces in a high level of detail. You can then send them to your crash reporting library. I recommend using setReportMainThreadOnly()
in this scenario. You can either make the app throw a non-fatal exception of the freeze point, or make the app force quit when the ANR happens.
Note that the standard ANR reports sent to your Google Play Developer console are often not accurate enough to pinpoint the exact problem. That's why a third-party library is needed.
The following incorporates Dag Hjermann's basic data and programming, improves upon user4786271's strategy to create a "transformation function" to optimally combine the plots and data axis, and responds to baptist's note that such a function can be created within R.
#Climatogram for Oslo (1961-1990)
climate <- tibble(
Month = 1:12,
Temp = c(-4,-4,0,5,11,15,16,15,11,6,1,-3),
Precip = c(49,36,47,41,53,65,81,89,90,84,73,55))
#y1 identifies the position, relative to the y1 axis,
#the locations of the minimum and maximum of the y2 graph.
#Usually this will be the min and max of y1.
#y1<-(c(max(climate$Precip), 0))
#y1<-(c(150, 55))
y1<-(c(max(climate$Precip), min(climate$Precip)))
#y2 is the Minimum and maximum of the secondary axis data.
y2<-(c(max(climate$Temp), min(climate$Temp)))
#axis combines y1 and y2 into a dataframe used for regressions.
axis<-cbind(y1,y2)
axis<-data.frame(axis)
#Regression of Temperature to Precipitation:
T2P<-lm(formula = y1 ~ y2, data = axis)
T2P_summary <- summary(lm(formula = y1 ~ y2, data = axis))
T2P_summary
#Identifies the intercept and slope of regressing Temperature to Precipitation:
T2PInt<-T2P_summary$coefficients[1, 1]
T2PSlope<-T2P_summary$coefficients[2, 1]
#Regression of Precipitation to Temperature:
P2T<-lm(formula = y2 ~ y1, data = axis)
P2T_summary <- summary(lm(formula = y2 ~ y1, data = axis))
P2T_summary
#Identifies the intercept and slope of regressing Precipitation to Temperature:
P2TInt<-P2T_summary$coefficients[1, 1]
P2TSlope<-P2T_summary$coefficients[2, 1]
#Create Plot:
ggplot(climate, aes(Month, Precip)) +
geom_col() +
geom_line(aes(y = T2PSlope*Temp + T2PInt), color = "red") +
scale_y_continuous("Precipitation", sec.axis = sec_axis(~.*P2TSlope + P2TInt, name = "Temperature")) +
scale_x_continuous("Month", breaks = 1:12) +
theme(axis.line.y.right = element_line(color = "red"),
axis.ticks.y.right = element_line(color = "red"),
axis.text.y.right = element_text(color = "red"),
axis.title.y.right = element_text(color = "red")) +
ggtitle("Climatogram for Oslo (1961-1990)")
Most noteworthy is that a new "transformation function" works better with just two data points from the data set of each axes—usually the maximum and minimum values of each set. The resulting slopes and intercepts of the two regressions enable ggplot2 to exactly pair the plots of the minimums and maximums of each axis. As user4786271 pointed out, the two regressions transform each data set and plot to the other. One transforms the break points of the first y axis to the values of the second y axis. The second transforms the data of the secondary y axis to be "normalized" according to the first y axis. The following output shows how the axis align the minimums and maximums of each dataset:
Having the maximums and minimums match may be most appropriate; however, another benefit of this method is that the plot associated with the secondary axis can be easily shifted, if desired, by altering a programming line related to the primary axis data. The output below simply changes the minimum precipitation input in the programming line of y1 to "0", and thus aligns the minimum Temperature level with the "0" Precipitation level.
From: y1<-(c(max(climate$Precip), min(climate$Precip)))
To: y1<-(c(max(climate$Precip), 0))
Notice how the resulting new regressions and ggplot2 automatically adjusted the plot and axis to correctly align the minimum Temperature to the new "base" of the "0" Precipitation level. Likewise, one is easily able to elevate the Temperature plot so that it is more obvious. The following graph is created by simply changing the above-noted line to:
"y1<-(c(150, 55))"
The above line tells the maximum of the Temperature graph to coincide with the "150" Precipitation level, and the minimum of the temperature line to coincide with the "55" Precipitation level. Again, notice how ggplot2 and the resulting new regression outputs enable the graph to maintain correct alignment with the axis.
The above may not be a desirable output; however, it is an example of how the graph can be easily manipulated and still have correct relationships between the plots and the axis. The incorporation of Dag Hjermann's theme improves identification of the axis corresponding to the plot.
There is a sorting algorithm in the standard library, in the header <algorithm>
. It sorts inplace, so if you do the following, your original word will become sorted.
std::sort(word.begin(), word.end());
If you don't want to lose the original, make a copy first.
std::string sortedWord = word;
std::sort(sortedWord.begin(), sortedWord.end());
byte[] byteArray = new byte[102400];
base64String = Base64.encode(byteArray);
That code will encode 102400 bytes, no matter how much data you actually use in the array.
while ((bytesRead = fis.read(byteArray)) != -1)
You need to use the value of bytesRead somewhere.
Also, this may not read the whole file into the array in one go (it only reads as much as is in the I/O buffer), so your loop will probably not work, you may end up with half an image in your array.
I'd use Apache Commons IOUtils here:
Base64.encode(FileUtils.readFileToByteArray(file));
The solution for me was to update guest additions
(click Devices -> Insert Guest Additions CD image)
The first case will fail when JS is off. It's also a little bit slower since JS must be parsed first (DOM must be loaded). However JS is safer since the destination doesn't know the referer and your redirect might be tracked (referers aren't reliable in general yet this is something).
You can also use meta refresh tag. It also requires DOM to be loaded.
This function will return you image with black border try this.. hope this will help you
- (UIImage *)addBorderToImage:(UIImage *)image frameImage:(UIImage *)blackBorderImage
{
CGSize size = CGSizeMake(image.size.width,image.size.height);
UIGraphicsBeginImageContext(size);
CGPoint thumbPoint = CGPointMake(0,0);
[image drawAtPoint:thumbPoint];
UIGraphicsBeginImageContext(size);
CGImageRef imgRef = blackBorderImage.CGImage;
CGContextDrawImage(UIGraphicsGetCurrentContext(), CGRectMake(0, 0, size.width,size.height), imgRef);
UIImage *imageCopy = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
CGPoint starredPoint = CGPointMake(0, 0);
[imageCopy drawAtPoint:starredPoint];
UIImage *imageC = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return imageC;
}
You could also just create a Group Policy Preference and have it create the reg key for you. (no scripting involved)
A problem I was running into was that I was using the webpack-simple install for VueJS which didn't seem to include an Environment variable config folder. So I wasn't able to edit the env.test,development, and production.js config files. Creating them didn't help either.
Other answers weren't detailed enough for me, so I just "fiddled" with webpack.config.js. And the following worked just fine.
So to get Environment Variables to work, the webpack.config.js should have the following at the bottom:
if (process.env.NODE_ENV === 'production') {
module.exports.devtool = '#source-map'
// http://vue-loader.vuejs.org/en/workflow/production.html
module.exports.plugins = (module.exports.plugins || []).concat([
new webpack.DefinePlugin({
'process.env': {
NODE_ENV: '"production"'
}
}),
new webpack.optimize.UglifyJsPlugin({
sourceMap: true,
compress: {
warnings: false
}
}),
new webpack.LoaderOptionsPlugin({
minimize: true
})
])
}
Based on the above, in production, you would be able to get the NODE_ENV variable
mounted() {
console.log(process.env.NODE_ENV)
}
Now there may be better ways to do this, but if you want to use Environment Variables in Development you would do something like the following:
if (process.env.NODE_ENV === 'development') {
module.exports.plugins = (module.exports.plugins || []).concat([
new webpack.DefinePlugin({
'process.env': {
NODE_ENV: '"development"'
}
})
]);
}
Now if you want to add other variables with would be as simple as:
if (process.env.NODE_ENV === 'development') {
module.exports.plugins = (module.exports.plugins || []).concat([
new webpack.DefinePlugin({
'process.env': {
NODE_ENV: '"development"',
ENDPOINT: '"http://localhost:3000"',
FOO: "'BAR'"
}
})
]);
}
I should also note that you seem to need the "''" double quotes for some reason.
So, in Development, I can now access these Environment Variables:
mounted() {
console.log(process.env.ENDPOINT)
console.log(process.env.FOO)
}
Here is the whole webpack.config.js just for some context:
var path = require('path')
var webpack = require('webpack')
module.exports = {
entry: './src/main.js',
output: {
path: path.resolve(__dirname, './dist'),
publicPath: '/dist/',
filename: 'build.js'
},
module: {
rules: [
{
test: /\.css$/,
use: [
'vue-style-loader',
'css-loader'
],
}, {
test: /\.vue$/,
loader: 'vue-loader',
options: {
loaders: {
}
// other vue-loader options go here
}
},
{
test: /\.js$/,
loader: 'babel-loader',
exclude: /node_modules/
},
{
test: /\.(png|jpg|gif|svg)$/,
loader: 'file-loader',
options: {
name: '[name].[ext]?[hash]'
}
}
]
},
resolve: {
alias: {
'vue$': 'vue/dist/vue.esm.js'
},
extensions: ['*', '.js', '.vue', '.json']
},
devServer: {
historyApiFallback: true,
noInfo: true,
overlay: true
},
performance: {
hints: false
},
devtool: '#eval-source-map'
}
if (process.env.NODE_ENV === 'production') {
module.exports.devtool = '#source-map'
// http://vue-loader.vuejs.org/en/workflow/production.html
module.exports.plugins = (module.exports.plugins || []).concat([
new webpack.DefinePlugin({
'process.env': {
NODE_ENV: '"production"'
}
}),
new webpack.optimize.UglifyJsPlugin({
sourceMap: true,
compress: {
warnings: false
}
}),
new webpack.LoaderOptionsPlugin({
minimize: true
})
])
}
if (process.env.NODE_ENV === 'development') {
module.exports.plugins = (module.exports.plugins || []).concat([
new webpack.DefinePlugin({
'process.env': {
NODE_ENV: '"development"',
ENDPOINT: '"http://localhost:3000"',
FOO: "'BAR'"
}
})
]);
}
you could search with
aptitude search intl
after you can choose the right one, for example
sudo aptitude install php-intl
and finally
sudo service apache2 restart
good Luck!
basename() has a bug when processing Asian characters like Chinese.
I use this:
function get_basename($filename)
{
return preg_replace('/^.+[\\\\\\/]/', '', $filename);
}
What is the best place is your question. The best place is inside the Controller.Initialize method. MSDN writes that it is called after the constructor and before the action method. In contrary of overriding OnActionExecuting, placing your code in the Initialize method allow you to benefit of having all custom data annotation and attribute on your classes and on your properties to be localized.
For example, my localization logic come from an class that is injected to my custom controller. I have access to this object since Initialize is called after the constructor. I can do the Thread's culture assignation and not having every error message displayed correctly.
public BaseController(IRunningContext runningContext){/*...*/}
protected override void Initialize(RequestContext requestContext)
{
base.Initialize(requestContext);
var culture = runningContext.GetCulture();
Thread.CurrentThread.CurrentUICulture = culture;
Thread.CurrentThread.CurrentCulture = culture;
}
Even if your logic is not inside a class like the example I provided, you have access to the RequestContext which allow you to have the URL and HttpContext and the RouteData which you can do basically any parsing possible.
Just use another container to wrap last two divs. Don't forget to use CSS prefixes.
#productShowcaseContainer {_x000D_
display: flex;_x000D_
flex-direction: column;_x000D_
height: 600px;_x000D_
width: 580px;_x000D_
background-color: rgb(240, 240, 240);_x000D_
}_x000D_
_x000D_
#productShowcaseTitle {_x000D_
height: 100px;_x000D_
background-color: rgb(200, 200, 200);_x000D_
}_x000D_
_x000D_
#anotherContainer{_x000D_
display: flex;_x000D_
height: 100%;_x000D_
}_x000D_
_x000D_
#productShowcaseDetail {_x000D_
background-color: red;_x000D_
flex: 4;_x000D_
}_x000D_
_x000D_
#productShowcaseThumbnailContainer {_x000D_
background-color: blue;_x000D_
flex: 1;_x000D_
}
_x000D_
<div id="productShowcaseContainer">_x000D_
<div id="productShowcaseTitle">1</div>_x000D_
<div id="anotherContainer">_x000D_
<div id="productShowcaseDetail">2</div>_x000D_
<div id="productShowcaseThumbnailContainer">3</div>_x000D_
</div>_x000D_
</div>
_x000D_
This is a generic Comparator
for any kind of Comparable
object, not just String
:
package util;
import java.util.Comparator;
/**
* The Default Comparator for classes implementing Comparable.
*
* @param <E> the type of the comparable objects.
*
* @author Michael Belivanakis (michael.gr)
*/
public final class DefaultComparator<E extends Comparable<E>> implements Comparator<E>
{
@SuppressWarnings( "rawtypes" )
private static final DefaultComparator<?> INSTANCE = new DefaultComparator();
/**
* Get an instance of DefaultComparator for any type of Comparable.
*
* @param <T> the type of Comparable of interest.
*
* @return an instance of DefaultComparator for comparing instances of the requested type.
*/
public static <T extends Comparable<T>> Comparator<T> getInstance()
{
@SuppressWarnings("unchecked")
Comparator<T> result = (Comparator<T>)INSTANCE;
return result;
}
private DefaultComparator()
{
}
@Override
public int compare( E o1, E o2 )
{
if( o1 == o2 )
return 0;
if( o1 == null )
return 1;
if( o2 == null )
return -1;
return o1.compareTo( o2 );
}
}
How to use with String
:
Comparator<String> stringComparator = DefaultComparator.getInstance();
You should be able to use the variable name directly
ansible_ssh_host
Or you can go through hostvars without having to specify the host literally
by using the magic variable inventory_hostname
hostvars[inventory_hostname].ansible_ssh_host
The componentDidUpdate
signature is void::componentDidUpdate(previousProps, previousState)
. With this you will be able to test which props/state are dirty and call setState
accordingly.
componentDidUpdate(previousProps, previousState) {
if (previousProps.data !== this.props.data) {
this.setState({/*....*/})
}
}
Go to tools
>> nuget
>> console
and type:
Install-Package System.Configuration.ConfigurationManager
If you want a specific version:
Install-Package System.Configuration.ConfigurationManager -Version 4.5.0
Your ConfigurationManager
dll will now be imported and the code will begin to work.
If you are using PHP 5.3, it is because you need to set the default time zone:
date_default_timezone_set()
Here's one-liner that I came up with recently for solving this problem. It's based on the setdefault dictionary method:
my_dict = {}
my_dict[key] = my_dict.setdefault(key, 0) + 1
Strongly simplified version of max
:
def max(items, key=lambda x: x):
current = item[0]
for item in items:
if key(item) > key(current):
current = item
return current
Regarding lambda:
>>> ident = lambda x: x
>>> ident(3)
3
>>> ident(5)
5
>>> times_two = lambda x: 2*x
>>> times_two(2)
4
The documentation has been updated. My answer has substantial changes vs the accepted answer: I wanted to reflect documentation is up-to-date, and accepted answer has a few broken links.
Also, I didn't understand when the accepted answer said "it defaults to node server.js
". I think the documentation clarifies the default behavior:
npm-start
Start a package
Synopsis
npm start [-- <args>]
Description
This runs an arbitrary command specified in the package's "
start
" property of its "scripts
" object. If no "start
" property is specified on the "scripts
" object, it will runnode server.js
.
In summary, running npm start
could do one of two things:
npm start {command_name}
: Run an arbitrary command (i.e. if such command is specified in the start
property of package.json's scripts
object)npm start
: Else if no start
property exists (or no command_name
is passed): Run node server.js
, (which may not be appropriate, for example the OP doesn't have server.js
; the OP runs node
app.js
)package.json
in the directory where you run npm start
, you may see an error: npm ERR! enoent ENOENT: no such file or directory, open '.\package.json'
Make a bat file with the following in it:
copy /y C:\temp\log1k.txt C:\temp\log1k_copied.txt
However, I think there are issues if there are spaces in your directory names. Notice this was copied to the same directory, but that doesn't matter. If you want to see how it runs, make another bat file that calls the first and outputs to a log:
C:\temp\test.bat > C:\temp\test.log
(assuming the first bat file was called test.bat and was located in that directory)
First you create a MySQL table to store images, like for example:
create table testblob (
image_id tinyint(3) not null default '0',
image_type varchar(25) not null default '',
image blob not null,
image_size varchar(25) not null default '',
image_ctgy varchar(25) not null default '',
image_name varchar(50) not null default ''
);
Then you can write an image to the database like:
/***
* All of the below MySQL_ commands can be easily
* translated to MySQLi_ with the additions as commented
***/
$imgData = file_get_contents($filename);
$size = getimagesize($filename);
mysql_connect("localhost", "$username", "$password");
mysql_select_db ("$dbname");
// mysqli
// $link = mysqli_connect("localhost", $username, $password,$dbname);
$sql = sprintf("INSERT INTO testblob
(image_type, image, image_size, image_name)
VALUES
('%s', '%s', '%d', '%s')",
/***
* For all mysqli_ functions below, the syntax is:
* mysqli_whartever($link, $functionContents);
***/
mysql_real_escape_string($size['mime']),
mysql_real_escape_string($imgData),
$size[3],
mysql_real_escape_string($_FILES['userfile']['name'])
);
mysql_query($sql);
You can display an image from the database in a web page with:
$link = mysql_connect("localhost", "username", "password");
mysql_select_db("testblob");
$sql = "SELECT image FROM testblob WHERE image_id=0";
$result = mysql_query("$sql");
header("Content-type: image/jpeg");
echo mysql_result($result, 0);
mysql_close($link);
The above answer is not according to what Google Doc Referred for Location Tracking in Google api v2.
I just followed the official tutorial and ended up with this class that is fetching the current location and centring the map on it as soon as i get that.
you can extend this class to have LocationReciever to have periodic Location Update. I just executed this code on api level 7
http://developer.android.com/training/location/retrieve-current.html
Here it goes.
import android.app.Activity;
import android.app.Dialog;
import android.content.Intent;
import android.content.IntentSender;
import android.location.Location;
import android.os.Bundle;
import android.support.v4.app.DialogFragment;
import android.support.v4.app.FragmentActivity;
import android.util.Log;
import android.widget.Toast;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GooglePlayServicesClient;
import com.google.android.gms.common.GooglePlayServicesUtil;
import com.google.android.gms.location.LocationClient;
import com.google.android.gms.maps.CameraUpdate;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.GoogleMap.OnMapLongClickListener;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.LatLng;
public class MainActivity extends FragmentActivity implements
GooglePlayServicesClient.ConnectionCallbacks,
GooglePlayServicesClient.OnConnectionFailedListener{
private SupportMapFragment mapFragment;
private GoogleMap map;
private LocationClient mLocationClient;
/*
* Define a request code to send to Google Play services
* This code is returned in Activity.onActivityResult
*/
private final static int CONNECTION_FAILURE_RESOLUTION_REQUEST = 9000;
// Define a DialogFragment that displays the error dialog
public static class ErrorDialogFragment extends DialogFragment {
// Global field to contain the error dialog
private Dialog mDialog;
// Default constructor. Sets the dialog field to null
public ErrorDialogFragment() {
super();
mDialog = null;
}
// Set the dialog to display
public void setDialog(Dialog dialog) {
mDialog = dialog;
}
// Return a Dialog to the DialogFragment.
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
return mDialog;
}
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main_activity);
mLocationClient = new LocationClient(this, this, this);
mapFragment = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map));
map = mapFragment.getMap();
map.setMyLocationEnabled(true);
}
/*
* Called when the Activity becomes visible.
*/
@Override
protected void onStart() {
super.onStart();
// Connect the client.
if(isGooglePlayServicesAvailable()){
mLocationClient.connect();
}
}
/*
* Called when the Activity is no longer visible.
*/
@Override
protected void onStop() {
// Disconnecting the client invalidates it.
mLocationClient.disconnect();
super.onStop();
}
/*
* Handle results returned to the FragmentActivity
* by Google Play services
*/
@Override
protected void onActivityResult(
int requestCode, int resultCode, Intent data) {
// Decide what to do based on the original request code
switch (requestCode) {
case CONNECTION_FAILURE_RESOLUTION_REQUEST:
/*
* If the result code is Activity.RESULT_OK, try
* to connect again
*/
switch (resultCode) {
case Activity.RESULT_OK:
mLocationClient.connect();
break;
}
}
}
private boolean isGooglePlayServicesAvailable() {
// Check that Google Play services is available
int resultCode = GooglePlayServicesUtil.isGooglePlayServicesAvailable(this);
// If Google Play services is available
if (ConnectionResult.SUCCESS == resultCode) {
// In debug mode, log the status
Log.d("Location Updates", "Google Play services is available.");
return true;
} else {
// Get the error dialog from Google Play services
Dialog errorDialog = GooglePlayServicesUtil.getErrorDialog( resultCode,
this,
CONNECTION_FAILURE_RESOLUTION_REQUEST);
// If Google Play services can provide an error dialog
if (errorDialog != null) {
// Create a new DialogFragment for the error dialog
ErrorDialogFragment errorFragment = new ErrorDialogFragment();
errorFragment.setDialog(errorDialog);
errorFragment.show(getSupportFragmentManager(), "Location Updates");
}
return false;
}
}
/*
* Called by Location Services when the request to connect the
* client finishes successfully. At this point, you can
* request the current location or start periodic updates
*/
@Override
public void onConnected(Bundle dataBundle) {
// Display the connection status
Toast.makeText(this, "Connected", Toast.LENGTH_SHORT).show();
Location location = mLocationClient.getLastLocation();
LatLng latLng = new LatLng(location.getLatitude(), location.getLongitude());
CameraUpdate cameraUpdate = CameraUpdateFactory.newLatLngZoom(latLng, 17);
map.animateCamera(cameraUpdate);
}
/*
* Called by Location Services if the connection to the
* location client drops because of an error.
*/
@Override
public void onDisconnected() {
// Display the connection status
Toast.makeText(this, "Disconnected. Please re-connect.",
Toast.LENGTH_SHORT).show();
}
/*
* Called by Location Services if the attempt to
* Location Services fails.
*/
@Override
public void onConnectionFailed(ConnectionResult connectionResult) {
/*
* Google Play services can resolve some errors it detects.
* If the error has a resolution, try sending an Intent to
* start a Google Play services activity that can resolve
* error.
*/
if (connectionResult.hasResolution()) {
try {
// Start an Activity that tries to resolve the error
connectionResult.startResolutionForResult(
this,
CONNECTION_FAILURE_RESOLUTION_REQUEST);
/*
* Thrown if Google Play services canceled the original
* PendingIntent
*/
} catch (IntentSender.SendIntentException e) {
// Log the error
e.printStackTrace();
}
} else {
Toast.makeText(getApplicationContext(), "Sorry. Location services not available to you", Toast.LENGTH_LONG).show();
}
}
}
Changing Command Execute Timeout in Management Studio:
Click on Tools -> Options
Select Query Execution from tree on left side and enter command timeout in "Execute Timeout" control.
Changing Command Timeout in Server:
In the object browser tree right click on the server which give you timeout and select "Properties" from context menu.
Now in "Server Properties -....." dialog click on "Connections" page in "Select a Page" list (on left side). On the right side you will get property
Remote query timeout (in seconds, 0 = no timeout):
[up/down control]
you can set the value in up/down control.
See: How to symlink python in Homebrew?
$ brew link --overwrite python
Linking /usr/local/Cellar/python/2.7.3... 28 symlinks created
$ which python
/usr/local/bin/python
There is a built in method called UploadValues that can send HTTP POST (or any kind of HTTP methods) AND handles the construction of request body (concatenating parameters with "&" and escaping characters by url encoding) in proper form data format:
using(WebClient client = new WebClient())
{
var reqparm = new System.Collections.Specialized.NameValueCollection();
reqparm.Add("param1", "<any> kinds & of = ? strings");
reqparm.Add("param2", "escaping is already handled");
byte[] responsebytes = client.UploadValues("http://localhost", "POST", reqparm);
string responsebody = Encoding.UTF8.GetString(responsebytes);
}
Maybe you can try the following :
var i = 0;
function AjaxSendForm(url, placeholder, form, append) {
var data = $(form).serialize();
append = (append === undefined ? false : true); // whatever, it will evaluate to true or false only
$.ajax({
type: 'POST',
url: url,
data: data,
beforeSend: function() {
// setting a timeout
$(placeholder).addClass('loading');
i++;
},
success: function(data) {
if (append) {
$(placeholder).append(data);
} else {
$(placeholder).html(data);
}
},
error: function(xhr) { // if error occured
alert("Error occured.please try again");
$(placeholder).append(xhr.statusText + xhr.responseText);
$(placeholder).removeClass('loading');
},
complete: function() {
i--;
if (i <= 0) {
$(placeholder).removeClass('loading');
}
},
dataType: 'html'
});
}
This way, if the beforeSend
statement is called before the complete
statement i
will be greater than 0 so it will not remove the class. Then only the last call will be able to remove it.
I cannot test it, let me know if it works or not.
It's the number of bytes of data in the body of the request or response. The body is the part that comes after the blank line below the headers.
Note: The last line is mandatory.
If we didn't specify Access-Control-Expose-Headers, we will not get File Name in UI.
FileInfo file = new FileInfo(FILEPATH);
HttpResponseMessage response = new HttpResponseMessage(HttpStatusCode.OK);
response.Content.Headers.ContentDisposition = new ContentDispositionHeaderValue("attachment")
{
FileName = file.Name
};
response.Content.Headers.Add("Access-Control-Expose-Headers", "Content-Disposition");
I really like SCFrench's answer - I would like to point out that it can easily be modified to import the functions directly to the workspace using the assignin function. (Doing it like this reminds me a lot of Python's "import x from y" way of doing things)
function message = makefuns
assignin('base','fun1',@fun1);
assignin('base','fun2',@fun2);
message='Done importing functions to workspace';
end
function y=fun1(x)
y=x;
end
function z=fun2
z=1;
end
And then used thusly:
>> makefuns
ans =
Done importing functions to workspace
>> fun1(123)
ans =
123
>> fun2()
ans =
1
iReports Custom Fields for columns (sum, average, etc)
Right-Click on Variables and click Create Variable
Click on the new variable
a. Notice the properties on the right
Rename the variable accordingly
Change the Value Class Name to the correct Data Type
a. You can search by clicking the 3 dots
Select the correct type of calculation
Change the Expression
a. Click the little icon
b. Select the column you are looking to do the calculation for
c. Click finish
Set Initial Value Expression to 0
Set the increment type to none
Set the Reset Type (usually report)
Drag a new Text Field to stage (Usually in Last Page Footer, or Column Footer)
Select the new variable
Click finish
We have improved our answer with detail explanation.Now it's more easy to understand about extension method
Extension method: It is a mechanism through which we can extend the behavior of existing class without using the sub classing or modifying or recompiling the original class or struct.
We can extend our custom classes ,.net framework classes etc.
Extension method is actually a special kind of static method that is defined in the static class.
As DateTime
class is already taken above and hence we have not taken this class for the explanation.
Below is the example
//This is a existing Calculator class which have only one method(Add)
public class Calculator
{
public double Add(double num1, double num2)
{
return num1 + num2;
}
}
// Below is the extension class which have one extension method.
public static class Extension
{
// It is extension method and it's first parameter is a calculator class.It's behavior is going to extend.
public static double Division(this Calculator cal, double num1,double num2){
return num1 / num2;
}
}
// We have tested the extension method below.
class Program
{
static void Main(string[] args)
{
Calculator cal = new Calculator();
double add=cal.Add(10, 10);
// It is a extension method in Calculator class.
double add=cal.Division(100, 10)
}
}
On the topic of cleaning up remote branches
git branch -r | xargs -t -n 1 git branch -r --contains
This lists each remote branch followed by which remote branches their latest SHAs are within.
This is useful to discern which remote branches have been merged but not deleted, and which haven't been merged and thus are decaying.
If you're using 'tig' (its like gitk but terminal based) then you can
tig origin/feature/someones-decaying-feature
to see a branch's commit history without having to git checkout
This seems to work.
{{ form.fields.email.initial }}
date -d '1 hour ago' '+%Y-%m-%d'
The output would be 2015-06-14
.
Make sure you have downloaded Support Repository to use support library dependency in build.gradle.
If these all are there already installed sync your project with gradle once using the button available.
You will have to use cookie to store the value across page refresh. You can use any one of the many javascript based cookie libraries to simplify the cookie access, like this one
If you want to support only html5 then you can think of Storage api like localStorage/sessionStorage
Ex: using localStorage and cookies library
var mode = getStoredValue('myPageMode');
function buttonClick(mode) {
mode = mode;
storeValue('myPageMode', mode);
}
function storeValue(key, value) {
if (localStorage) {
localStorage.setItem(key, value);
} else {
$.cookies.set(key, value);
}
}
function getStoredValue(key) {
if (localStorage) {
return localStorage.getItem(key);
} else {
return $.cookies.get(key);
}
}
https://jsfiddle.net/co1z0qg0/141/
<input type="text">
<script>
$('input').on('keyup', function() {
var val = parseInt($(this).val()),
max = 100;
val = isNaN(val) ? 0 : Math.max(Math.min(val, max), 0);
$(this).val(val);
});
</script>
or better
https://jsfiddle.net/co1z0qg0/142/
<input type="number" max="100">
<script>
$(function() {
$('input[type="number"]').on('keyup', function() {
var el = $(this),
val = Math.max((0, el.val())),
max = parseInt(el.attr('max'));
el.val(isNaN(max) ? val : Math.min(max, val));
});
});
</script>
<style>
input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
-webkit-appearance: none;
margin: 0;
}
input[type="number"] {
-moz-appearance: textfield;
}
</style>
There's always the hardware route. Purchase two USB to serial converters, and connect them via a NULL modem.
Pro tips: 1) Windows may assign new COM ports to the adapters after every device sleep or reboot. 2) The market leaders in chips for USB to serial are Prolific and FTDI. Both companies are battling knockoffs, and may be blocked in future official Windows drivers. The Linux drivers however work fine with the clones.
With the Entity Framework most of the time SaveChanges()
is sufficient. This creates a transaction, or enlists in any ambient transaction, and does all the necessary work in that transaction.
Sometimes though the SaveChanges(false) + AcceptAllChanges()
pairing is useful.
The most useful place for this is in situations where you want to do a distributed transaction across two different Contexts.
I.e. something like this (bad):
using (TransactionScope scope = new TransactionScope())
{
//Do something with context1
//Do something with context2
//Save and discard changes
context1.SaveChanges();
//Save and discard changes
context2.SaveChanges();
//if we get here things are looking good.
scope.Complete();
}
If context1.SaveChanges()
succeeds but context2.SaveChanges()
fails the whole distributed transaction is aborted. But unfortunately the Entity Framework has already discarded the changes on context1
, so you can't replay or effectively log the failure.
But if you change your code to look like this:
using (TransactionScope scope = new TransactionScope())
{
//Do something with context1
//Do something with context2
//Save Changes but don't discard yet
context1.SaveChanges(false);
//Save Changes but don't discard yet
context2.SaveChanges(false);
//if we get here things are looking good.
scope.Complete();
context1.AcceptAllChanges();
context2.AcceptAllChanges();
}
While the call to SaveChanges(false)
sends the necessary commands to the database, the context itself is not changed, so you can do it again if necessary, or you can interrogate the ObjectStateManager
if you want.
This means if the transaction actually throws an exception you can compensate, by either re-trying or logging state of each contexts ObjectStateManager
somewhere.
Given this data:
Col1 Col2 Col3
A X 1
A Y 2
A Y 3
B X 0
B Y 3
B Z 1
This query:
SELECT Col1, Col2, Col3 FROM data GROUP BY Col1, Col2, Col3
Would result in exactly the same table.
However, this query:
SELECT Col1, Col2 FROM data GROUP BY Col1, Col2
Would result in:
Col1 Col2
A X
A Y
B X
B Y
B Z
Now, a query:
SELECT Col1, Col2, Col3 FROM data GROUP BY Col1, Col2
Would create a problem: the line with A, Y is the result of grouping the two lines
A Y 2
A Y 3
So, which value should be in Col3, '2' or '3'?
Normally you would use a GROUP BY
to calculate e.g. a sum:
SELECT Col1, Col2, SUM(Col3) FROM data GROUP BY Col1, Col2
So in the line, we had a problem with we now get (2+3) = 5.
Grouping by all your columns in your select is effectively the same as using DISTINCT, and it is preferable to use the DISTINCT keyword word readability in this case.
So instead of
SELECT Col1, Col2, Col3 FROM data GROUP BY Col1, Col2, Col3
use
SELECT DISTINCT Col1, Col2, Col3 FROM data
Most Markdown parsers don't support tables without headers. That means the separation line for headers is mandatory.
PHP Markdown Extra "second line contains a mandatory separator line between the headers and the content"
RDiscount Uses PHP Markdown Extra syntax.
simple_tables
and multiline_tables
extensions)If you're able to change the CSS of the HTML output you can however leverage the :empty
pseudo class to hide an empty header and make it look like there is no header at all.
Another way using jQuery:
var exists = false;
$('#yourSelect option').each(function(){
if (this.value == yourValue) {
exists = true;
}
});
Just for fun (new lambda functions):
static std::list<string> some_list;
vector<string> s;
s.push_back("a");
s.push_back("b");
s.push_back("c");
for_each( s.begin(), s.end(), [=](string str)
{
some_list.push_back(str);
}
);
for_each( some_list.begin(), some_list.end(), [](string ss) { cout << ss; } );
Although doing a simple loop is recommended :-)
You could also use
SELECT * from Results WHERE date < NOW() - INTERVAL 30 DAY;
If you are using Netbeans, goto Dependencies and manually install artifact. Locate your downloaded .jar file and its done. clean build will solve any issues.
Eclipse can't work out what you want to run and since you've not run anything before, it can't try re-running that either.
Instead of clicking the green 'run' button, click the dropdown next to it and chose Run Configurations. On the Android tab, make sure it's set to your project. In the Target tab, set the tick box and options as appropriate to target your device. Then click Run. Keep an eye on your Console tab in Eclipse - that'll let you know what's going on. Once you've got your run configuration set, you can just hit the green 'run' button next time.
Sometimes getting everything to talk to your device can be problematic to begin with. Consider using an AVD (i.e. an emulator) as alternative, at least to begin with if you have problems. You can easily create one from the menu Window -> Android Virtual Device Manager within Eclipse.
To view the progress of your project being installed and started on your device, check the console. It's a panel within Eclipse with the tabs Problems/Javadoc/Declaration/Console/LogCat etc. It may be minimised - check the tray in the bottom right. Or just use Window/Show View/Console from the menu to make it come to the front. There are two consoles, Android and DDMS - there is a dropdown by its icon where you can switch.
not found on the java.library.path: /usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib
The native lib is expected in one of the following locations
/usr/java/packages/lib/amd64
/usr/lib64
/lib64
/lib
/usr/lib
and not in
tomcat/lib
The files in tomcat/lib
are all jar
file and are added by tomcat to the classpath
so that they are available to your application.
The native lib is needed by tomcat to perform better on the platform it is installed on and thus cannot be a jar
, for linux it could be a .so
file, for windows it could be a .dll
file.
Just download the native library for your platform and place it in the one of the locations tomcat is expecting it to be.
Note that you are not required to have this lib for development/test purposes. Tomcat runs just fine without it.
org.apache.catalina.startup.Catalina start INFO: Server startup in 2882 ms
EDIT
The output you are getting is very normal, it's just some logging outputs from tomcat, the line right above indicates that the server correctly started and is ready for operating.
If you are troubling with running your servlet then after the run on sever
command eclipse opens a browser window (embeded (default) or external, depends on your config). If nothing shows on the browser, then check the url bar of the browser to see whether your servlet was requested or not.
It should be something like that
http://localhost:8080/<your-context-name>/<your-servlet-name>
EDIT 2
Try to call your servlet using the following url
http://localhost:8080/com.filecounter/FileCounter
Also each web project has a web.xml, you can find it in your project under WebContent\WEB-INF
.
It is better to configure your servlets there using servlet-name
servlet-class
and url-mapping
. It could look like that:
<servlet>
<description></description>
<display-name>File counter - My first servlet</display-name>
<servlet-name>file_counter</servlet-name>
<servlet-class>com.filecounter.FileCounter</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>file_counter</servlet-name>
<url-pattern>/FileFounter</url-pattern>
</servlet-mapping>
In eclipse dynamic web project the default context name is the same as your project name.
http://localhost:8080/<your-context-name>/FileCounter
will work too.
According to the nature of Java language, I suppose people do not actually require a Pair
, an interface is usually what they need. Here is an example:
interface Pair<L, R> {
public L getL();
public R getR();
}
So, when people want to return two values they can do the following:
... //Calcuate the return value
final Integer v1 = result1;
final String v2 = result2;
return new Pair<Integer, String>(){
Integer getL(){ return v1; }
String getR(){ return v2; }
}
This is a pretty lightweight solution, and it answers the question "What is the semantic of a Pair<L,R>
?". The answer is, this is an interface build with two (may be different) types, and it has methods to return each of them. It is up to you to add further semantic to it. For example, if you are using Position and REALLY want to indicate it in you code, you can define PositionX
and PositionY
that contains Integer
, to make up a Pair<PositionX,PositionY>
. If JSR 308 is available, you may also use Pair<@PositionX Integer, @PositionY Ingeger>
to simplify that.
EDIT:
One thing I should indicate here is that the above definition explicitly relates the type parameter name and the method name. This is an answer to those argues that a Pair
is lack of semantic information. Actually, the method getL
means "give me the element that correspond to the type of type parameter L", which do means something.
EDIT: Here is a simple utility class that can make life easier:
class Pairs {
static <L,R> Pair<L,R> makePair(final L l, final R r){
return new Pair<L,R>(){
public L getL() { return l; }
public R getR() { return r; }
};
}
}
usage:
return Pairs.makePair(new Integer(100), "123");
In C++, variable length arrays are not legal. G++ allows this as an "extension" (because C allows it), so in G++ (without being -pedantic
about following the C++ standard), you can do:
int n = 10;
double a[n]; // Legal in g++ (with extensions), illegal in proper C++
If you want a "variable length array" (better called a "dynamically sized array" in C++, since proper variable length arrays aren't allowed), you either have to dynamically allocate memory yourself:
int n = 10;
double* a = new double[n]; // Don't forget to delete [] a; when you're done!
Or, better yet, use a standard container:
int n = 10;
std::vector<double> a(n); // Don't forget to #include <vector>
If you still want a proper array, you can use a constant, not a variable, when creating it:
const int n = 10;
double a[n]; // now valid, since n isn't a variable (it's a compile time constant)
Similarly, if you want to get the size from a function in C++11, you can use a constexpr
:
constexpr int n()
{
return 10;
}
double a[n()]; // n() is a compile time constant expression
As is described in this GitHub issue the build actually happens in /tmp/docker-12345
, so a relative path like ../relative-add/some-file
is relative to /tmp/docker-12345
. It would thus search for /tmp/relative-add/some-file
, which is also shown in the error message.*
It is not allowed to include files from outside the build directory, so this results in the "Forbidden path" message."
For large datasets a faster solution is required.
Making use of 'Text to Columns' functionality provides a fast solution.
Example based on column F, starting range at 25 to LastRow
Sub ConvTxt2Nr()
Dim SelectR As Range
Dim sht As Worksheet
Dim LastRow As Long
Set sht = ThisWorkbook.Sheets("DumpDB")
LastRow = sht.Cells(sht.Rows.Count, "F").End(xlUp).Row
Set SelectR = ThisWorkbook.Sheets("DumpDB").Range("F25:F" & LastRow)
SelectR.TextToColumns Destination:=Range("F25"), DataType:=xlDelimited, _
TextQualifier:=xlDoubleQuote, ConsecutiveDelimiter:=False, Tab:=True, _
Semicolon:=False, Comma:=False, Space:=False, Other:=False, FieldInfo _
:=Array(1, 1), TrailingMinusNumbers:=True
End Sub
Well... All of these are super complicated.
If you have modernizr, it's a no-brainer.
ev = Modernizr.touch ? 'touchstart' : 'click';
$('#menu').on(ev, '[href="#open-menu"]', function(){
//winning
});
You may use any of following ways:
private static final int RETURN_COUNT = 2;
private static final int VALUE_A = 0;
private static final int VALUE_B = 1;
private static final String A = "a";
private static final String B = "b";
1) Using Array
private static String[] methodWithArrayResult() {
//...
return new String[]{"valueA", "valueB"};
}
private static void usingArrayResultTest() {
String[] result = methodWithArrayResult();
System.out.println();
System.out.println("A = " + result[VALUE_A]);
System.out.println("B = " + result[VALUE_B]);
}
2) Using ArrayList
private static List<String> methodWithListResult() {
//...
return Arrays.asList("valueA", "valueB");
}
private static void usingListResultTest() {
List<String> result = methodWithListResult();
System.out.println();
System.out.println("A = " + result.get(VALUE_A));
System.out.println("B = " + result.get(VALUE_B));
}
3) Using HashMap
private static Map<String, String> methodWithMapResult() {
Map<String, String> result = new HashMap<>(RETURN_COUNT);
result.put(A, "valueA");
result.put(B, "valueB");
//...
return result;
}
private static void usingMapResultTest() {
Map<String, String> result = methodWithMapResult();
System.out.println();
System.out.println("A = " + result.get(A));
System.out.println("B = " + result.get(B));
}
4) Using your custom container class
private static class MyContainer<M,N> {
private final M first;
private final N second;
public MyContainer(M first, N second) {
this.first = first;
this.second = second;
}
public M getFirst() {
return first;
}
public N getSecond() {
return second;
}
// + hashcode, equals, toString if need
}
private static MyContainer<String, String> methodWithContainerResult() {
//...
return new MyContainer("valueA", "valueB");
}
private static void usingContainerResultTest() {
MyContainer<String, String> result = methodWithContainerResult();
System.out.println();
System.out.println("A = " + result.getFirst());
System.out.println("B = " + result.getSecond());
}
5) Using AbstractMap.simpleEntry
private static AbstractMap.SimpleEntry<String, String> methodWithAbstractMapSimpleEntryResult() {
//...
return new AbstractMap.SimpleEntry<>("valueA", "valueB");
}
private static void usingAbstractMapSimpleResultTest() {
AbstractMap.SimpleEntry<String, String> result = methodWithAbstractMapSimpleEntryResult();
System.out.println();
System.out.println("A = " + result.getKey());
System.out.println("B = " + result.getValue());
}
6) Using Pair of Apache Commons
private static Pair<String, String> methodWithPairResult() {
//...
return new ImmutablePair<>("valueA", "valueB");
}
private static void usingPairResultTest() {
Pair<String, String> result = methodWithPairResult();
System.out.println();
System.out.println("A = " + result.getKey());
System.out.println("B = " + result.getValue());
}
Below is an adaptation of previous code for using under PyQt5 and Matplotlib 2.0. There are a number of small changes: structure of PyQt submodules, other submodule from matplotlib, deprecated method has been replaced...
import sys
from PyQt5.QtWidgets import QDialog, QApplication, QPushButton, QVBoxLayout
from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg as FigureCanvas
from matplotlib.backends.backend_qt5agg import NavigationToolbar2QT as NavigationToolbar
import matplotlib.pyplot as plt
import random
class Window(QDialog):
def __init__(self, parent=None):
super(Window, self).__init__(parent)
# a figure instance to plot on
self.figure = plt.figure()
# this is the Canvas Widget that displays the `figure`
# it takes the `figure` instance as a parameter to __init__
self.canvas = FigureCanvas(self.figure)
# this is the Navigation widget
# it takes the Canvas widget and a parent
self.toolbar = NavigationToolbar(self.canvas, self)
# Just some button connected to `plot` method
self.button = QPushButton('Plot')
self.button.clicked.connect(self.plot)
# set the layout
layout = QVBoxLayout()
layout.addWidget(self.toolbar)
layout.addWidget(self.canvas)
layout.addWidget(self.button)
self.setLayout(layout)
def plot(self):
''' plot some random stuff '''
# random data
data = [random.random() for i in range(10)]
# instead of ax.hold(False)
self.figure.clear()
# create an axis
ax = self.figure.add_subplot(111)
# discards the old graph
# ax.hold(False) # deprecated, see above
# plot data
ax.plot(data, '*-')
# refresh canvas
self.canvas.draw()
if __name__ == '__main__':
app = QApplication(sys.argv)
main = Window()
main.show()
sys.exit(app.exec_())
Something along the lines of this?
<asp:TextBox id="txtUsername" runat="server" />
<asp:RegularExpressionValidator
id="RegularExpressionValidator1"
runat="server"
ErrorMessage="Field not valid!"
ControlToValidate="txtUsername"
ValidationExpression="[0-9a-zA-Z]{6,}" />
Date.js has a lot of helpful date parsing methods.
require("datejs")
(new Date()).toString("yyyyMMdd")
When a query takes that long, I would advice to run it asynchronously and use a callback function for when it's complete.
I don't have much experience with ASP.NET, but maybe you can use AJAX for this asynchronous behavior.
Typically a web page should load in mere seconds, not minutes. Don't keep your users waiting for so long!
Reflection, basically, i.e.
myObject.GetType().GetProperty(property).SetValue(myObject, "Bob", null);
or there are libraries to help both in terms of convenience and performance; for example with FastMember:
var wrapped = ObjectAccessor.Create(obj);
wrapped[property] = "Bob";
(which also has the advantage of not needing to know in advance whether it is a field vs a property)
spell_list = ["Tuesday", "Wednesday", "February", "November", "Annual", "Calendar", "Solstice"]
index=spell_list.index("Annual")
print(index)
While INT_MAX
is probably the safest bet, WebKit apparently uses doubles internally and thus allows very large numbers (to a certain precision). LLONG_MAX
e.g. works fine (at least in 64-Bit Chromium and WebkitGTK), but will be rounded to 9223372036854776000.
(Although you should consider carefully whether you really, really need this many z indices…).
This will return TRUE
for #VALUE!
errors (ERROR.TYPE = 3) and FALSE
for anything else.
=IF(ISERROR(A1),ERROR.TYPE(A1)=3)
Try to disable the engine
option in your .htaccess file:
php_flag engine off
Use the synaptic packet manager in order to install yacc / lex. If you are feeling more comfortable doing this on the console just do:
sudo apt-get install bison flex
There are some very nice articles on the net on how to get started with those tools. I found the article from CodeProject to be quite good and helpful (see here). But you should just try and search for "introduction to lex", there are plenty of good articles showing up.
raise
without any arguments is a special use of python syntax. It means get the exception and re-raise it. If this usage it could have been called reraise
.
raise
From The Python Language Reference:
If no expressions are present, raise re-raises the last exception that was active in the current scope.
If raise
is used alone without any argument is strictly used for reraise-ing. If done in the situation that is not at a reraise of another exception, the following error is shown:
RuntimeError: No active exception to reraise
$ cd Desktop
$ openssl x509 -in aps_development.cer -inform der -out PushChatCert.pem
One possibility is to delete to cookie you are looking for the expiration date from and rewrite it. Then you'll know the expiration date.
The script containing variables can be executed imported using bash. Consider the script-variable.sh
#!/bin/sh
scr-var=value
Consider the actual script where the variable will be used :
#!/bin/sh
bash path/to/script-variable.sh
echo "$scr-var"
Well, there is an array type in recent Postgres versions (not 100% about PG 7.4). You can even index them, using a GIN or GIST index. The syntaxes are:
create table foo (
bar int[] default '{}'
);
select * from foo where bar && array[1] -- equivalent to bar && '{1}'::int[]
create index on foo using gin (bar); -- allows to use an index in the above query
But as the prior answer suggests, it will be better to normalize properly.
See the RETURNING clause of the INSERT statement. Basically, the INSERT doubles as a query and gives you back the value that was inserted.
>>> s = pd.Series([1,2,3,4,np.NaN,5,np.NaN])
>>> s[~s.isnull()]
0 1
1 2
2 3
3 4
5 5
update or even better approach as @DSM suggested in comments, using pandas.Series.dropna()
:
>>> s.dropna()
0 1
1 2
2 3
3 4
5 5
If you have cloned HTTPS instead of SSH and facing issue with username and password prompt on pull, push and fetch. You can solve this problem simply for UBUNTU
Step 1: move to root directory
cd ~/
create a file .git-credentials
Add this content to that file with you usename
password
and githosting URL
https://user:[email protected]
Then execute the command
git config --global credential.helper store
Now you will be able to pull push and fetch all details from your repo without any hassle.
Flipped structure might no longer be a map but rather a multimap, thus in the flip_map example above not all elements from B will necessarily appear in the resulting data structure.
This should work:
$(this).find('option:selected').text();
Try adding scrolling="no"
attribute like below:
<iframe frameborder="0" scrolling="no" style="height:380px;width:6000px;border:none;" src='https://yoururl'></iframe>
_x000D_
You want the non-locale-aware floatval
function:
float floatval ( mixed $var ) - Gets the float value of a string.
Example:
$string = '122.34343The';
$float = floatval($string);
echo $float; // 122.34343
#include <stdio.h>
#include <string.h>
int main() {
char src[] = "SexDrugsRocknroll";
char dest[5] = { 0 }; // 4 chars + terminator */
int len = strlen(src);
int i = 0;
while (i*4 < len) {
strncpy(dest, src+(i*4), 4);
i++;
printf("loop %d : %s\n", i, dest);
}
}
Using IntelliJ Idea:
1) Invalidate Caches, and 2) right click on resources, New Resources directory, type = raw 3) build
note in step 2: I was concerned that simply adding a raw directory wouldn't be enough...
I was getting the same issue and found that OpenSSH service was not running and it was causing the issue. After starting the SSH service it worked.
To check if SSH service is running or not:
ssh localhost
To start the service, if OpenSSH is already installed:
sudo /etc/init.d/ssh start
There is no straightforward way to do this. All you can do is check with the package manager (rpm, dpkg) or probe some likely locations for the files you want. Or you could try to connect to a likely port (5432) and see if you get a PostgreSQL protocol response. But none of this is going to be very robust. You might want to review your requirements.
I used friedmud's answer. I looked into this for a while, and it seems to be a good way to get started. This solution also has a well defined method of adding compiler flags. I answered again, because I made changes to make it work in my environment, Ubuntu and g++. More working examples are the best teacher, sometimes.
appname := myapp
CXX := g++
CXXFLAGS := -Wall -g
srcfiles := $(shell find . -maxdepth 1 -name "*.cpp")
objects := $(patsubst %.cpp, %.o, $(srcfiles))
all: $(appname)
$(appname): $(objects)
$(CXX) $(CXXFLAGS) $(LDFLAGS) -o $(appname) $(objects) $(LDLIBS)
depend: .depend
.depend: $(srcfiles)
rm -f ./.depend
$(CXX) $(CXXFLAGS) -MM $^>>./.depend;
clean:
rm -f $(objects)
dist-clean: clean
rm -f *~ .depend
include .depend
Makefiles seem to be very complex. I was using one, but it was generating an error related to not linking in g++ libraries. This configuration solved that problem.
This is just a sample code, but it may help you get on your way:
Public Sub testIt()
Workbooks("Workbook2").Activate
ActiveWorkbook.Sheets("Sheet2").Activate
ActiveSheet.Range("B3").Select
ActiveCell.EntireRow.Insert
End Sub
I am assuming that you can open the book (called Workbook2
in the example).
I think (but I'm not sure) you can squash all this in a single line of code:
Workbooks("Workbook2").Sheets("Sheet2").Range("B3").EntireRow.Insert
This way you won't need to activate the workbook (or sheet or cell)... Obviously, the book has to be open.
I had some dealings with the select \ multi-select this is what did the trick for me
<select name="mySelect" multiple="multiple">
<option>Foo</option>
<option>Bar</option>
<option>Foo Bar</option>
<option>Bar Foo</option>
</select>
I found one by Julian Bucknall on his blog here - http://www.boyet.com/Articles/PriorityQueueCSharp3.html
We modified it slightly so that low-priority items on the queue would eventually 'bubble-up' to the top over time, so they wouldn't suffer starvation.
With Spring boot , the spring.config.location does work,just provide comma separated properties files.
see the below code
@PropertySource(ignoreResourceNotFound=true,value="classpath:jdbc-${spring.profiles.active}.properties")
public class DBConfig{
@Value("${jdbc.host}")
private String jdbcHostName;
}
}
one can put the default version of jdbc.properties inside application. The external versions can be set lie this.
java -jar target/myapp.jar --spring.config.location=classpath:file:///C:/Apps/springtest/jdbc.properties,classpath:file:///C:/Apps/springtest/jdbc-dev.properties
Based on profile value set using spring.profiles.active property, the value of jdbc.host will be picked up. So when (on windows)
set spring.profiles.active=dev
jdbc.host will take value from jdbc-dev.properties.
for
set spring.profiles.active=default
jdbc.host will take value from jdbc.properties.
I wrote the following function. It replaces the following:
Single quote ['] with a slash and a single quote [\'].
Backslash [\] with two backslashes [\\]
function escapePhpString($target) {
$replacements = array(
"'" => '\\\'',
"\\" => '\\\\'
);
return strtr($target, $replacements);
}
You can modify it to add or remove character replacements in the $replacements array. For example, to replace \r\n, it becomes "\r\n" => "\r\n" and "\n" => "\n".
/**
* With new line replacements too
*/
function escapePhpString($target) {
$replacements = array(
"'" => '\\\'',
"\\" => '\\\\',
"\r\n" => "\\r\\n",
"\n" => "\\n"
);
return strtr($target, $replacements);
}
The neat feature about strtr is that it will prefer long replacements.
Example, "Cool\r\nFeature" will escape \r\n rather than escaping \n along.
That depends. If said file is publicly available via your HTTP server or servlet container you can simply redirect to via response.sendRedirect()
.
If it's not, you'll need to manually copy it to response output stream:
OutputStream out = response.getOutputStream();
FileInputStream in = new FileInputStream(my_file);
byte[] buffer = new byte[4096];
int length;
while ((length = in.read(buffer)) > 0){
out.write(buffer, 0, length);
}
in.close();
out.flush();
You'll need to handle the appropriate exceptions, of course.
SELECT so.name,so.modify_date
FROM sys.objects as so
INNER JOIN INFORMATION_SCHEMA.TABLES as ist
ON ist.TABLE_NAME=so.name where ist.TABLE_TYPE='BASE TABLE' AND
TABLE_CATALOG='DbName' order by so.modify_date desc;
this is help to get table modify with table name
Use the password_verify() function
if (password_vertify($inputpassword, $row['password'])) {
print "Logged in";
else {
print "Password Incorrect";
}
Rather than mess with the encode and decode methods I find it easier to specify the encoding when opening the file. The io
module (added in Python 2.6) provides an io.open
function, which has an encoding parameter.
Use the open method from the io
module.
>>>import io
>>>f = io.open("test", mode="r", encoding="utf-8")
Then after calling f's read() function, an encoded Unicode object is returned.
>>>f.read()
u'Capit\xe1l\n\n'
Note that in Python 3, the io.open
function is an alias for the built-in open
function. The built-in open function only supports the encoding argument in Python 3, not Python 2.
Edit: Previously this answer recommended the codecs module. The codecs module can cause problems when mixing read()
and readline()
, so this answer now recommends the io module instead.
Use the open method from the codecs module.
>>>import codecs
>>>f = codecs.open("test", "r", "utf-8")
Then after calling f's read() function, an encoded Unicode object is returned.
>>>f.read()
u'Capit\xe1l\n\n'
If you know the encoding of a file, using the codecs package is going to be much less confusing.
See the (quite) recent answer on the matplotlib repository, in which the following solution is suggested:
If you want to set the xticklabels:
ax.set_xticks([1,4,5])
ax.set_xticklabels([1,4,5], fontsize=12)
If you want to only increase the fontsize of the xticklabels, using the default values and locations (which is something I personally often need and find very handy):
ax.tick_params(axis="x", labelsize=12)
To do it all at once:
plt.setp(ax.get_xticklabels(), fontsize=12, fontweight="bold",
horizontalalignment="left")`
I couldn't find a rationale by the original developers this quickly, but I can give you an educated guess based on a few years of Git experience.
No, not every branch is something you want to push to the outside world. It might represent a private experiment.
Moreover, where should git push
send all the branches? Git can work with multiple remotes and you may want to have different sets of branches on each. E.g. a central project GitHub repo may have release branches; a GitHub fork may have topic branches for review; and a local Git server may have branches containing local configuration. If git push
would push all branches to the remote that the current branch tracks, this kind of scheme would be easy to screw up.
<form>
syn<input type="checkbox" name="checkfield" id="g01-01" />
</form>
js:
$('#g01-01').on('change',function(){
var _val = $(this).is(':checked') ? 'checked' : 'unchecked';
alert(_val);
});
I feed a 514 dimensional real-valued input to a Sequential
model in Keras.
My model is constructed in following way :
predictivemodel = Sequential()
predictivemodel.add(Dense(514, input_dim=514, W_regularizer=WeightRegularizer(l1=0.000001,l2=0.000001), init='normal'))
predictivemodel.add(Dense(257, W_regularizer=WeightRegularizer(l1=0.000001,l2=0.000001), init='normal'))
predictivemodel.compile(loss='mean_squared_error', optimizer='adam', metrics=['accuracy'])
When I print model.summary()
I get following result:
Layer (type) Output Shape Param # Connected to
================================================================
dense_1 (Dense) (None, 514) 264710 dense_input_1[0][0]
________________________________________________________________
activation_1 (None, 514) 0 dense_1[0][0]
________________________________________________________________
dense_2 (Dense) (None, 257) 132355 activation_1[0][0]
================================================================
Total params: 397065
________________________________________________________________
For the dense_1 layer , number of params is 264710. This is obtained as : 514 (input values) * 514 (neurons in the first layer) + 514 (bias values)
For dense_2 layer, number of params is 132355. This is obtained as : 514 (input values) * 257 (neurons in the second layer) + 257 (bias values for neurons in the second layer)
Simple:
>>> import string
>>> string.ascii_letters
'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
>>> import random
>>> random.choice(string.ascii_letters)
'j'
string.ascii_letters
returns a string containing the lower case and upper case letters according to the current locale.
random.choice
returns a single, random element from a sequence.
If you wrote it like this then it would matter :
for(i=0; i<5; i=j++) {
printf("%d",i);
}
Would iterate once more than if written like this :
for(i=0; i<5; i=++j) {
printf("%d",i);
}
"The list are variables/paramaters that is pre-defined as comma separated lists". Do you mean that your query is actually
UPDATE tab1 SET budgpost_gr1=
CASE WHEN (budgpost in ('1001,1012,50055')) THEN 'BP_GR_A'
WHEN (budgpost in ('5,10,98,0')) THEN 'BP_GR_B'
WHEN (budgpost in ('11,876,7976,67465'))
ELSE 'Missing' END`
If so, you need a function to take a string and parse it into a list of numbers.
create type tab_num is table of number;
create or replace function f_str_to_nums (i_str in varchar2) return tab_num is
v_tab_num tab_num := tab_num();
v_start number := 1;
v_end number;
v_delim VARCHAR2(1) := ',';
v_cnt number(1) := 1;
begin
v_end := instr(i_str||v_delim,v_delim,1, v_start);
WHILE v_end > 0 LOOP
v_cnt := v_cnt + 1;
v_tab_num.extend;
v_tab_num(v_tab_num.count) :=
substr(i_str,v_start,v_end-v_start);
v_start := v_end + 1;
v_end := instr(i_str||v_delim,v_delim,v_start);
END LOOP;
RETURN v_tab_num;
end;
/
Then you can use the function like so:
select column_id,
case when column_id in
(select column_value from table(f_str_to_nums('1,2,3,4'))) then 'red'
else 'blue' end
from user_tab_columns
where table_name = 'EMP'
I solved it with library PHP_PDO , because my hosting provider didn't accept my requirement for installation of PDO driver to apache server.
If I correctly got what you want:
$rules = ['Fno' => 'digits_between:2,5', 'Lno' => 'numeric|min:2'];
or
$rules = ['Fno' => 'numeric|min:2|max:5', 'Lno' => 'numeric|min:2'];
For all the available rules: http://laravel.com/docs/4.2/validation#available-validation-rules
digits_between :min,max
The field under validation must have a length between the given min and max.
numeric
The field under validation must have a numeric value.
max:value
The field under validation must be less than or equal to a maximum value. Strings, numerics, and files are evaluated in the same fashion as the size rule.
min:value
The field under validation must have a minimum value. Strings, numerics, and files are evaluated in the same fashion as the size rule.
Reading and writing from and to a file can be blocked by your OS depending on the file's permission attributes.
If you are trying to read from the file, then I recommend using File's setReadable method to set it to true, or, this code for instance:
String arbitrary_path = "C:/Users/Username/Blah.txt";
byte[] data_of_file;
File f = new File(arbitrary_path);
f.setReadable(true);
data_of_file = Files.readAllBytes(f);
f.setReadable(false); // do this if you want to prevent un-knowledgeable
//programmers from accessing your file.
If you are trying to write to the file, then I recommend using File's setWritable method to set it to true, or, this code for instance:
String arbitrary_path = "C:/Users/Username/Blah.txt";
byte[] data_of_file = { (byte) 0x00, (byte) 0xFF, (byte) 0xEE };
File f = new File(arbitrary_path);
f.setWritable(true);
Files.write(f, byte_array);
f.setWritable(false); // do this if you want to prevent un-knowledgeable
//programmers from changing your file (for security.)
select *
from YourTable
where ','+replace(col, ' ', '')+',' like '%,Cat,%'
In case anyone was still looking and came across this SO post like I did.
<input type="submit" name="open" value="Open">
<input type="submit" name="close" value="Close">
def contact():
if "open" in request.form:
pass
elif "close" in request.form:
pass
return render_template('contact.html')
Simple, concise, and it works. Don't even need to instantiate a form object.
You've got the right idea, so here's how to go ahead: the onclick
handlers run on the client side, in the browser, so you cannot call a PHP function directly. Instead, you need to add a JavaScript function that (as you mentioned) uses AJAX to call a PHP script and retrieve the data. Using jQuery, you can do something like this:
<script type="text/javascript">
function recp(id) {
$('#myStyle').load('data.php?id=' + id);
}
</script>
<a href="#" onClick="recp('1')" > One </a>
<a href="#" onClick="recp('2')" > Two </a>
<a href="#" onClick="recp('3')" > Three </a>
<div id='myStyle'>
</div>
Then you put your PHP code into a separate file: (I've called it data.php
in the above example)
<?php
require ('myConnect.php');
$id = $_GET['id'];
$results = mysql_query("SELECT para FROM content WHERE para_ID='$id'");
if( mysql_num_rows($results) > 0 )
{
$row = mysql_fetch_array( $results );
echo $row['para'];
}
?>
In Python, to represent the absence of a value, you can use the None value (types.NoneType.None) for objects and "" (or len() == 0) for strings. Therefore:
if yourObject is None: # if yourObject == None:
...
if yourString == "": # if yourString.len() == 0:
...
Regarding the difference between "==" and "is", testing for object identity using "==" should be sufficient. However, since the operation "is" is defined as the object identity operation, it is probably more correct to use it, rather than "==". Not sure if there is even a speed difference.
Anyway, you can have a look at:
In more complicated build scenarios, it is common to break compilation into stages, with compilation and assembly happening first (output to object files), and linking object files into a final executable or library afterward--this prevents having to recompile all object files when their source files haven't changed. That's why including the linking flag -lm
isn't working when you put it in CFLAGS
(CFLAGS
is used in the compilation stage).
The convention for libraries to be linked is to place them in either LOADLIBES
or LDLIBS
(GNU make includes both, but your mileage may vary):
LDLIBS=-lm
This should allow you to continue using the built-in rules rather than having to write your own linking rule. For other makes, there should be a flag to output built-in rules (for GNU make, this is -p
). If your version of make does not have a built-in rule for linking (or if it does not have a placeholder for -l
directives), you'll need to write your own:
client.o: client.c
$(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c -o $@ $<
client: client.o
$(CC) $(LDFLAGS) $(TARGET_ARCH) $^ $(LOADLIBES) $(LDLIBS) -o $@
require 5.013002; # or better: use Syntax::Construct qw(/r);
print "bla: ", $myvar =~ s/a/b/r, "\n";
See perl5132delta:
The substitution operator now supports a
/r
option that copies the input variable, carries out the substitution on the copy and returns the result. The original remains unmodified.
my $old = 'cat';
my $new = $old =~ s/cat/dog/r;
# $old is 'cat' and $new is 'dog'
You can create a single function that calls both of those, and then use it in the event.
function myFunction(){
pay();
cls();
}
And then, for the button:
<input id="btn" type="button" value="click" onclick="myFunction();"/>
@user544079
Even though it is very old and irrelevant now, I am replying to help people like me! it should be like this:
<form method="post" action="mailto:$emailID?subject=$MySubject &message= $MyMessageText">
Here $emailID, $MySubject, $MyMessageText are variables which you assign from a FORM or a DATABASE Table or just you can assign values in your code itself. Alternatively you can put the code like this (normally it is not used):
<form method="post" action="mailto:[email protected]?subject=New Registration Alert &message= New Registration requires your approval">
JAXB is a reliable choice as it does xml to java classes mapping smoothely. But there are other frameworks available, here is one such:
One-liner solution:
The following code uses object URLs, which is much more efficient than data URL for viewing large images (A data URL is a huge string containing all of the file data, whereas an object URL, is just a short string referencing the file data in-memory):
<img id="blah" alt="your image" width="100" height="100" />_x000D_
_x000D_
<input type="file" _x000D_
onchange="document.getElementById('blah').src = window.URL.createObjectURL(this.files[0])">
_x000D_
Generated URL will be like:
blob:http%3A//localhost/7514bc74-65d4-4cf0-a0df-3de016824345
A brute force approach:
.gitmodules
file in the supermodule to point to the new submodule url,supermodule/.gitmodules
,.gitmodules
file are reflected in the clone),git submodule update --init path-to-submodule
on the submodule,et voilà! The submodule in the new clone of the supermodule is properly configured!
use g++
instead of gcc
.
1) Open your terminal and type
npm install -g http-server
2) Go to the root folder that you want to serve you files and type:
http-server ./
3)
Read the output of the terminal, something kinda http://localhost:8080
will appear.
Everything on there will be allowed to be got. Example:
background: url('http://localhost:8080/waw.png')
;
1-firstly, drop the foreign key constraint after that drop the tables.
2-you can drop all foreign key via executing the following query:
DECLARE @SQL varchar(4000)=''
SELECT @SQL =
@SQL + 'ALTER TABLE ' + s.name+'.'+t.name + ' DROP CONSTRAINT [' + RTRIM(f.name) +'];' + CHAR(13)
FROM sys.Tables t
INNER JOIN sys.foreign_keys f ON f.parent_object_id = t.object_id
INNER JOIN sys.schemas s ON s.schema_id = f.schema_id
--EXEC (@SQL)
PRINT @SQL
if you execute the printed results @SQL, the foreign keys will be dropped.
.catch(error => { throw error})
is a no-op. It results in unhandled rejection in route handler.
As explained in this answer, Express doesn't support promises, all rejections should be handled manually:
router.get("/emailfetch", authCheck, async (req, res, next) => {
try {
//listing messages in users mailbox
let emailFetch = await gmaiLHelper.getEmails(req.user._doc.profile_id , '/messages', req.user.accessToken)
emailFetch = emailFetch.data
res.send(emailFetch)
} catch (err) {
next(err);
}
})
This is really helpful if you want to create a multimap without resorting to the Google Guava library for its implementation of MultiMap
.
For example, suppose you want to store a list of students who enrolled for a particular subject.
The normal solution for this using JDK library is:
Map<String,List<String>> studentListSubjectWise = new TreeMap<>();
List<String>lis = studentListSubjectWise.get("a");
if(lis == null) {
lis = new ArrayList<>();
}
lis.add("John");
//continue....
Since it have some boilerplate code, people tend to use Guava Mutltimap
.
Using Map.computeIfAbsent, we can write in a single line without guava Multimap as follows.
studentListSubjectWise.computeIfAbsent("a", (x -> new ArrayList<>())).add("John");
Stuart Marks & Brian Goetz did a good talk about this https://www.youtube.com/watch?v=9uTVXxJjuco
This solution worked for me:
Using a parent element like:
.parent-div {
display:flex;
flex-direction: column-reverse;
}
In my case I didn't have to change the css of the elements that I needed to switch.
Reverting the revert will do the trick
For example,
If abcdef
is your commit and ghijkl
is the commit you have when you reverted the commit abcdef
, then run:
git revert ghijkl
This will revert the revert
I got this error, hope this will help someone:
const firstName = 'Joe';
const lastName = 'Blogs';
const wholeName = firstName + ' ' lastName + '.';
The problem was that I was missing a plus (+) between the empty space and lastName. This is a super simplified example: I was concatenating about 9 different parts so it was hard to spot the error.
Summa summarum: if you get "SyntaxError: missing ; before statement", don't look at what is wrong with the the semicolon (;) symbols in your code, look for an error in syntax on that line.
I resolved this by adding a new source folder and putting my java file inside that folder. "source folder" is not just any folder i believe. its some special folder type for java/eclipse and can be added in eclipse by right-click on project -> properties -> Java buld path -> Source and add a folder
I'll assume that Time
and Product
are columns in a DataFrame
, df
is an instance of DataFrame
, and that other variables are scalar values:
For now, you'll have to reference the DataFrame
instance:
k1 = df.loc[(df.Product == p_id) & (df.Time >= start_time) & (df.Time < end_time), ['Time', 'Product']]
The parentheses are also necessary, because of the precedence of the &
operator vs. the comparison operators. The &
operator is actually an overloaded bitwise operator which has the same precedence as arithmetic operators which in turn have a higher precedence than comparison operators.
In pandas
0.13 a new experimental DataFrame.query()
method will be available. It's extremely similar to subset modulo the select
argument:
With query()
you'd do it like this:
df[['Time', 'Product']].query('Product == p_id and Month < mn and Year == yr')
Here's a simple example:
In [9]: df = DataFrame({'gender': np.random.choice(['m', 'f'], size=10), 'price': poisson(100, size=10)})
In [10]: df
Out[10]:
gender price
0 m 89
1 f 123
2 f 100
3 m 104
4 m 98
5 m 103
6 f 100
7 f 109
8 f 95
9 m 87
In [11]: df.query('gender == "m" and price < 100')
Out[11]:
gender price
0 m 89
4 m 98
9 m 87
The final query that you're interested will even be able to take advantage of chained comparisons, like this:
k1 = df[['Time', 'Product']].query('Product == p_id and start_time <= Time < end_time')
The reason this question still often arises is because, as you mentioned, somewhere somehow someone presumed as important wrote that the RFC states domain names without subdomain in front of them are not valid. If you read the RFC carefully, however, you'll find that this is not exactly what it says. In fact, RFC 1912 states:
Don't go overboard with CNAMEs. Use them when renaming hosts, but plan to get rid of them (and inform your users).
Some DNS hosts provide a way to get CNAME-like functionality at the zone apex (the root domain level, for the naked domain name) using a custom record type. Such records include, for example:
For each provider, the setup is similar: point the ALIAS or ANAME entry for your apex domain to example.domain.com, just as you would with a CNAME record. Depending on the DNS provider, an empty or @ Name value identifies the zone apex.
ALIAS or ANAME or @ example.domain.com.
If your DNS provider does not support such a record-type, and you are unable to switch to one that does, you will need to use subdomain redirection, which is not that hard, depending on the protocol or server software that needs to do it.
I strongly disagree with the statement that it's done only by "amateur admins" or such ideas. It's a simple "What does the name and its service need to do?" deal, and then to adapt your DNS config to serve those wishes; If your main services are web and e-mail, I don' t see any VALID reason why dropping the CNAMEs for-good would be problematic. After all, who would prefer @subdomain.domain.org over @domain.org ? Who needs "www" if you're already set with the protocol itself? It's illogical to assume that use of a root-domainname would be invalid.
For generating the publish output provide one more parameter. msbuild example.sln /p:publishprofile=profilename /p:deployonbuild=true /p:configuration=debug/or any
If a proper encryption method was used, it's not going to be possible to easily retrieve them.
Just reset them with new passwords.
Edit: The string looks like it is using PASSWORD()
:
UPDATE user SET password = PASSWORD("newpassword");
Some of you might find this useful. Just copy paste it to your page and you will get a sequence in which events are fired in the Chrome console (Ctrl + Shift + I).
$(document).on('pagebeforecreate',function(){console.log('pagebeforecreate');});
$(document).on('pagecreate',function(){console.log('pagecreate');});
$(document).on('pageinit',function(){console.log('pageinit');});
$(document).on('pagebeforehide',function(){console.log('pagebeforehide');});
$(document).on('pagebeforeshow',function(){console.log('pagebeforeshow');});
$(document).on('pageremove',function(){console.log('pageremove');});
$(document).on('pageshow',function(){console.log('pageshow');});
$(document).on('pagehide',function(){console.log('pagehide');});
$(window).load(function () {console.log("window loaded");});
$(window).unload(function () {console.log("window unloaded");});
$(function () {console.log('document ready');});
You are not going see unload in the console as it is fired when the page is being unloaded (when you move away from the page). Use it like this:
$(window).unload(function () { debugger; console.log("window unloaded");});
And you will see what I mean.
I have a similar case. I need to install openssl via brew and then use pip to install mitmproxy. I get the same complaint from brew link --force
. Following is the solution I reached: (without force link by brew)
LDFLAGS=-L/usr/local/opt/openssl/lib
CPPFLAGS=-I/usr/local/opt/openssl/include
PKG_CONFIG_PATH=/usr/local/opt/openssl/lib/pkgconfig
pip install mitmproxy
This does not address the question straightforwardly. I leave the one-liner in case anyone uses pip and requires the openssl lib.
Note: the /usr/local/opt/openssl/lib
paths are obtained by brew info openssl
You could make a little Tkinter app:
import Tkinter as tk
def onKeyPress(event):
text.insert('end', 'You pressed %s\n' % (event.char, ))
root = tk.Tk()
root.geometry('300x200')
text = tk.Text(root, background='black', foreground='white', font=('Comic Sans MS', 12))
text.pack()
root.bind('<KeyPress>', onKeyPress)
root.mainloop()
I think the short answer is no. For a more generic case in n
dimensions, I came up with this:
# For 2-dimensional data, 4 values
a = np.array([[0, 1, 2], [3, 2, 1]])
z = np.zeros(list(a.shape) + [4])
z[list(np.indices(z.shape[:-1])) + [a]] = 1
I am wondering if there is a better solution -- I don't like that I have to create those lists in the last two lines. Anyway, I did some measurements with timeit
and it seems that the numpy
-based (indices
/arange
) and the iterative versions perform about the same.
I just ran into this problem this morning and seemed very strange since my application was working fine up until today. I was getting the exact same "The Google Play services resources were not found..." message.
I tried opening the regular Google Maps application to see if I could get my location, but it wouldn't find it. Even after waiting 5 minutes, which is more than enough time to normally get a location from even the service provider via cell tower. So I checked Location Services.
Anyway, the problem turned out to be that on my S3 under Location Services -> Google Location Services. It was not checked. The other two location options were checked (VZW Location Services and Standalone GPS Services), but the last one, Google Location Services was not. After turning that on, the regular Google Maps could find my location and my application could find my location and the problem went away.
The error message pops up due to:
mMap.setMyLocationEnabled(true);
when Google Location Services is not enabled.
After doing some more testing it looks like if the current location is null (cannot be determined from all sources) then you will get this error when trying to turn on setMyLocationEnabled.
I had a similar encoding issue. I used the normalize() method. I was getting a Unicode error using the pandas .to_html() method when exporting my data frame to an .html file in another directory. I ended up doing this and it worked...
import unicodedata
The dataframe object can be whatever you like, let's call it table...
table = pd.DataFrame(data,columns=['Name','Team','OVR / POT'])
table.index+= 1
encode table data so that we can export it to out .html file in templates folder(this can be whatever location you wish :))
#this is where the magic happens
html_data=unicodedata.normalize('NFKD',table.to_html()).encode('ascii','ignore')
export normalized string to html file
file = open("templates/home.html","w")
file.write(html_data)
file.close()
Reference: unicodedata documentation
I once had the same problem, and then I searched and found this and it worked for me:
I had got some of the boxes unchecked, so I checked them again, then it worked. Just go to
Windows > Preferences > Java > Editor > Content Assist > Advanced
and check the boxes which you want .
What I believe is this:
Cohesion refers to the degree to which the elements of a module/class belong together, it is suggested that the related code should be close to each other, so we should strive for high cohesion and bind all related code together as close as possible. It has to do with the elements within the module/class.
Coupling refers to the degree to which the different modules/classes depend on each other, it is suggested that all modules should be independent as far as possible, that's why low coupling. It has to do with the elements among different modules/classes.
To visualize the whole picture will be helpful:
The screenshot was taken from Coursera.
In each class that you need to inherit from, you can run a loop of each class that needs init'd upon initiation of the child class...an example that can copied might be better understood...
class Female_Grandparent:
def __init__(self):
self.grandma_name = 'Grandma'
class Male_Grandparent:
def __init__(self):
self.grandpa_name = 'Grandpa'
class Parent(Female_Grandparent, Male_Grandparent):
def __init__(self):
Female_Grandparent.__init__(self)
Male_Grandparent.__init__(self)
self.parent_name = 'Parent Class'
class Child(Parent):
def __init__(self):
Parent.__init__(self)
#---------------------------------------------------------------------------------------#
for cls in Parent.__bases__: # This block grabs the classes of the child
cls.__init__(self) # class (which is named 'Parent' in this case),
# and iterates through them, initiating each one.
# The result is that each parent, of each child,
# is automatically handled upon initiation of the
# dependent class. WOOT WOOT! :D
#---------------------------------------------------------------------------------------#
g = Female_Grandparent()
print g.grandma_name
p = Parent()
print p.grandma_name
child = Child()
print child.grandma_name
This should be the code you need to hide the address bar:
window.addEventListener("load",function() {
setTimeout(function(){
// This hides the address bar:
window.scrollTo(0, 1);
}, 0);
});
Also nice looking Pokedex by the way! Hope this helps!
For Python >= 2.7, use subprocess.check_output()
.
http://docs.python.org/2/library/subprocess.html#subprocess.check_output
I always avoid changing prototype method and adding library so this is my solution:
Using reduce Array prototype method is sufficient
// + operator for casting to Number
items.reduce((a, b) => +a + +b.price, 0);
You may define your enum
like so and use cast where needed
public enum MyEnum
{
VariablePeriods = 1,
FixedPeriods = 2
}
Usage
public class Entity
{
public MyEnum Property { get; set; }
}
var returnedFromDB = 1;
var entity = new Entity();
entity.Property = (MyEnum)returnedFromDB;
Enumerate basically gives you an index to work with in the for loop. So:
for i,a in enumerate([4, 5, 6, 7]):
print i, ": ", a
Would print:
0: 4
1: 5
2: 6
3: 7
For the record (and others searching like I was), you can do it in MySQL like this:
UPDATE first_table, second_table
SET first_table.color = second_table.color
WHERE first_table.id = second_table.foreign_id
Selenium does it for you. Or at least it tries its best. Sometimes it falls short, and you must help it a little bit. The usual solution is Implicit Wait
which solves most of the problems.
If you really know what you're doing, and why you're doing it, you could try to write a generic method which would check whether the page is completely loaded. However, it can't be done for every web and for every situation.
Related question: Selenium WebDriver : Wait for complex page with JavaScript(JS) to load, see my answer there.
Shorter version: You'll never be sure.
The "normal" load is easy - document.readyState
. This one is implemented by Selenium, of course. The problematic thing are asynchronous requests, AJAX, because you can never tell whether it's done for good or not. Most of today's webpages have scripts that run forever and poll the server all the time.
The various things you could do are under the link above. Or, like 95% of other people, use Implicit Wait
implicity and Explicit Wait
+ ExpectedConditions
where needed.
E.g. after a click, some element on the page should become visible and you need to wait for it:
WebDriverWait wait = new WebDriverWait(driver, 10); // you can reuse this one
WebElement elem = driver.findElement(By.id("myInvisibleElement"));
elem.click();
wait.until(ExpectedConditions.visibilityOf(elem));
This is for Phonegap 3.0.x to 3.3.x. For PhoneGap 3.4.0 and higher see below.
Found part of the answer here, at Phonegap documentation. The full process is the following:
Open a command line window, and go to /path/to/your/project/platforms/android/cordova.
Run build --release
. This creates an unsigned release APK at /path/to/your/project/platforms/android/bin folder, called YourAppName-release-unsigned.apk.
Sign and align the APK using the instructions at android developer official docs.
Thanks to @LaurieClark for the link (http://iphonedevlog.wordpress.com/2013/08/16/using-phonegap-3-0-cli-on-mac-osx-10-to-build-ios-and-android-projects/), and the blogger who post it, because it put me on the track.
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
babel-polyfill allows you to use the full set of ES6 features beyond syntax changes. This includes features such as new built-in objects like Promises and WeakMap, as well as new static methods like Array.from or Object.assign.
Without babel-polyfill, babel only allows you to use features like arrow functions, destructuring, default arguments, and other syntax-specific features introduced in ES6.
https://www.quora.com/What-does-babel-polyfill-do
https://hackernoon.com/polyfills-everything-you-ever-wanted-to-know-or-maybe-a-bit-less-7c8de164e423
const url = new URL(window.location);
url.hash = '';
history.replaceState(null, document.title, url);
Compare <
and >
just as usual, but anything involving =
should use a +
prefix. Like so:
var x = new Date('2013-05-23');
var y = new Date('2013-05-23');
// less than, greater than is fine:
x < y; => false
x > y; => false
x === y; => false, oops!
// anything involving '=' should use the '+' prefix
// it will then compare the dates' millisecond values
+x <= +y; => true
+x >= +y; => true
+x === +y; => true
I have a similar table styled like so:
<table style="width:100%; table-layout:fixed">
<tr>
<td style="width: 150px">Hello, World!</td>
<td>
<div>
<pre style="margin:0; overflow:scroll">My preformatted content</pre>
</div>
</td>
</tr>
</table>
Just as a matter of completeness, and because we're talking Oracle, this could do it as well:
declare
begin
for sel in (
select table2.code, table2.desc
from table1
join table2 on table1.value = table2.desc
where table1.updatetype = 'blah'
) loop
update table1
set table1.value = sel.code
where table1.updatetype = 'blah' and table1.value = sel.desc;
end loop;
end;
/
Lets get the answer 10 – 12 in binary form using 8 bits: What we will really do is 10 + (-12)
We need to get the compliment part of 12 to subtract it from 10. 12 in binary is 00001100. 10 in binary is 00001010.
To get the compliment part of 12 we just reverse all the bits then add 1. 12 in binary reversed is 11110011. This is also the Inverse code (one's complement). Now we need to add one, which is now 11110100.
So 11110100 is the compliment of 12! Easy when you think of it this way.
Now you can solve the above question of 10 - 12 in binary form.
00001010
11110100
-----------------
11111110
#include <iostream>
#include <fstream>
using namespace std;
void main()
{
ifstream in_stream; // fstream command to initiate "in_stream" as a command.
char filename[31]; // variable for "filename".
cout << "Enter file name to open :: "; // asks user for input for "filename".
cin.getline(filename, 30); // this gets the line from input for "filename".
in_stream.open(filename); // this in_stream (fstream) the "filename" to open.
if (in_stream.fail())
{
cout << "Could not open file to read.""\n"; // if the open file fails.
return;
}
//.....the rest of the text goes beneath......
}
I am not sure if this helps but I had the same problem.
You are using springSecurityFilterChain with CSRF protection. That means you have to send a token when you send a form via POST request. Try to add the next input to your form:
<input type="hidden" name="${_csrf.parameterName}" value="${_csrf.token}"/>
We can also use logging to print data on the console.
Example:
import logging
from flask import Flask
app = Flask(__name__)
@app.route('/print')
def printMsg():
app.logger.warning('testing warning log')
app.logger.error('testing error log')
app.logger.info('testing info log')
return "Check your console"
if __name__ == '__main__':
app.run(debug=True)
Also possible like this
<button type="submit" class="icon-search icon-large"></button>
You can use upstream headers (named starting with $http_) and additional custom headers. For example:
add_header X-Upstream-01 $http_x_upstream_01;
add_header X-Hdr-01 txt01;
next, go to console and make request with user's header:
curl -H "X-Upstream-01: HEADER1" -I http://localhost:11443/
the response contains X-Hdr-01, seted by server and X-Upstream-01, seted by client:
HTTP/1.1 200 OK
Server: nginx/1.8.0
Date: Mon, 30 Nov 2015 23:54:30 GMT
Content-Type: text/html;charset=UTF-8
Connection: keep-alive
X-Hdr-01: txt01
X-Upstream-01: HEADER1
The QueryString collection is used to retrieve the variable values in the HTTP query string.
The HTTP query string is specified by the values following the question mark (?), like this:
Link with a query string
The line above generates a variable named txt with the value "this is a query string test".
Query strings are also generated by form submission, or by a user typing a query into the address bar of the browser.
And see this sample : http://www.codeproject.com/Articles/5876/Passing-variables-between-pages-using-QueryString
refer this : http://www.dotnetperls.com/querystring
you can collect More details in google .
If your using AppCompat and ActionBarActivity, then use this
getSupportActionBar().hide();
All right, after Jeffrey L Whitledge said that there was no performance difference (as of 1997), I went and tested it. I ran this small benchmark:
public class Main {
private static final int NUM_TESTS = 100;
private static int ITERATIONS = 1000000;
// time counters
private static long inTime = 0L;
private static long aroundTime = 0L;
public static void main(String[] args) {
for (int i = 0; i < NUM_TESTS; i++) {
test();
ITERATIONS += 1; // so the tests don't always return the same number
}
System.out.println("Inside loop: " + (inTime/1000000.0) + " ms.");
System.out.println("Around loop: " + (aroundTime/1000000.0) + " ms.");
}
public static void test() {
aroundTime += testAround();
inTime += testIn();
}
public static long testIn() {
long start = System.nanoTime();
Integer i = tryInLoop();
long ret = System.nanoTime() - start;
System.out.println(i); // don't optimize it away
return ret;
}
public static long testAround() {
long start = System.nanoTime();
Integer i = tryAroundLoop();
long ret = System.nanoTime() - start;
System.out.println(i); // don't optimize it away
return ret;
}
public static Integer tryInLoop() {
int count = 0;
for (int i = 0; i < ITERATIONS; i++) {
try {
count = Integer.parseInt(Integer.toString(count)) + 1;
} catch (NumberFormatException ex) {
return null;
}
}
return count;
}
public static Integer tryAroundLoop() {
int count = 0;
try {
for (int i = 0; i < ITERATIONS; i++) {
count = Integer.parseInt(Integer.toString(count)) + 1;
}
return count;
} catch (NumberFormatException ex) {
return null;
}
}
}
I checked the resulting bytecode using javap to make sure that nothing got inlined.
The results showed that, assuming insignificant JIT optimizations, Jeffrey is correct; there is absolutely no performance difference on Java 6, Sun client VM (I did not have access to other versions). The total time difference is on the order of a few milliseconds over the entire test.
Therefore, the only consideration is what looks cleanest. I find that the second way is ugly, so I will stick to either the first way or Ray Hayes's way.
The code is okay but you are in the wrong directory. You must run these commands inside your rails project-directory.
The normal way to get there from scratch is:
$ rails new PROJECT_NAME
$ cd PROJECT_NAME
$ rails generate model ad \
name:string \
description:text \
price:decimal \
seller_id:integer \
email:string img_url:string
Here is the real life example
@Html.Grid(Model).Columns(columns =>
{
columns.Add()
.Encoded(false)
.Sanitized(false)
.SetWidth(10)
.Titled(string.Empty)
.RenderValueAs(x => @Html.ActionLink("Edit", "UserDetails", "Membership", null, null, "discount", new { @id = @x.Id }, new { @target = "_blank" }));
}).WithPaging(200).EmptyText("There Are No Items To Display")
And the target page has TABS
<ul id="myTab" class="nav nav-tabs" role="tablist">
<li class="active"><a href="#discount" role="tab" data-toggle="tab">Discount</a></li>
</ul>
object-fit
property does the magic. On JsFiddle.
CSS
.image {
width: 160px;
height: 160px;
}
.object-fit_fill {
object-fit: fill
}
.object-fit_contain {
object-fit: contain
}
.object-fit_cover {
object-fit: cover
}
.object-fit_none {
object-fit: none
}
.object-fit_scale-down {
object-fit: scale-down
}
HTML
<div class="original-image">
<p>original image</p>
<img src="http://lorempixel.com/500/200">
</div>
<div class="image">
<p>object-fit: fill</p>
<img class="object-fit_fill" src="http://lorempixel.com/500/200">
</div>
<div class="image">
<p>object-fit: contain</p>
<img class="object-fit_contain" src="http://lorempixel.com/500/200">
</div>
<div class="image">
<p>object-fit: cover</p>
<img class="object-fit_cover" src="http://lorempixel.com/500/200">
</div>
<div class="image">
<p>object-fit: none</p>
<img class="object-fit_none" src="http://lorempixel.com/500/200">
</div>
<div class="image">
<p>object-fit: scale-down</p>
<img class="object-fit_scale-down" src="http://lorempixel.com/500/200">
</div>
Result
Backup
..PLAIN
for Format USE INSERT COMMANDS
Use Column Inserts
if you want column names in your inserts.Backup
buttonHere's my improvement: added parseInt. for some weird reason it didn't work without it.
// usage: jQuery('#my_div1').hasVerticalScrollBar();
// Credit: http://stackoverflow.com/questions/4814398/how-can-i-check-if-a-scrollbar-is-visible
(function($) {
$.fn.hasVerticalScrollBar = function() {
return this.get(0) ? parseInt( this.get(0).scrollHeight ) > parseInt( this.innerHeight() ) : false;
};
})(jQuery);
try this, applies only to iPhone and iPod so you're not making everything turn blue on chrome or firefox mobile;
/iP/i.test(navigator.userAgent) && $('*').css('cursor', 'pointer');
basically, on iOS, things aren't "clickable" by default -- they're "touchable" (pfffff) so you make them "clickable" by giving them a pointer cursor. makes total sense, right??
If you save color code in the colors.xml which is under the values folder,then you should call the following:
root.setBackgroundColor(getResources().getColor(R.color.name));
name
means you declare in the <color/>
tag.
Like this:
$date = '08/04/2010 22:15:00';
echo date('h:i A', strtotime($date));
Result:
10:15 PM
More Info:
There are two important notes.
array.concat()
does not work using Angular 1.4.4 and jQuery 3.2.1 (this is my environment).array.slice(0)
is an object. So if you do something like newArray1 = oldArray.slice(0); newArray2 = oldArray.slice(0)
, the two new arrays will reference to just 1 array and changing one will affect the other.Alternatively, using newArray1 = JSON.parse(JSON.stringify(old array))
will only copy the value, thus it creates a new array each time.
This is still an issue in VS Community 2015 and 2017 when building either console or windows apps. If the project is created with precompiled headers, the precompiled headers are apparently loaded before any of the #includes, so even if the #define _USE_MATH_DEFINES is the first line, it won't compile. #including math.h instead of cmath does not make a difference.
The only solutions I can find are either to start from an empty project (for simple console or embedded system apps) or to add /Y- to the command line arguments, which turns off the loading of precompiled headers.
For information on disabling precompiled headers, see for example https://msdn.microsoft.com/en-us/library/1hy7a92h.aspx
It would be nice if MS would change/fix this. I teach introductory programming courses at a large university, and explaining this to newbies never sinks in until they've made the mistake and struggled with it for an afternoon or so.
If you want to use names, try a namedtuple:
from collections import namedtuple
Pair = namedtuple("Pair", ["first", "second"])
pairs = [Pair("a", 1), Pair("b", 2), Pair("c", 3)]
for pair in pairs:
print("First = {}, second = {}".format(pair.first, pair.second))
To get the key IDs (8 bytes, 16 hex digits), this is the command which worked for me in GPG 1.4.16, 2.1.18 and 2.2.19:
gpg --list-packets <key.asc | awk '$1=="keyid:"{print$2}'
To get some more information (in addition to the key ID):
gpg --list-packets <key.asc
To get even more information:
gpg --list-packets -vvv --debug 0x2 <key.asc
The command
gpg --dry-run --import <key.asc
also works in all 3 versions, but in GPG 1.4.16 it prints only a short (4 bytes, 8 hex digits) key ID, so it's less secure to identify keys.
Some commands in other answers (e.g. gpg --show-keys
, gpg --with-fingerprint
, gpg --import --import-options show-only
) don't work in some of the 3 GPG versions above, thus they are not portable when targeting multiple versions of GPG.
In Spyder one can configure the IPython console for each Python file to clear all variables before each execution in the Menu Run -> Configuration -> General settings -> Remove all variables before execution
.
You will need to read the bytes
from that File
into a byte[]
and put that object into your JSONObject
.
You should also have a look at the following posts :
Hope this helps.
I had same problem.then i set globally map variable e.g var map= null and then for display map i check
if(map==null)then map=new L.Map('idopenstreet').setView();
By this solution your map will be initialize only first time after that map will be fill by L.Map then it will not be null. so no error will be there like map container already initialize.
you should just be able to call it by typing in the file name. You may have to call ./a.exe as the current directory is usually not on the path for security reasons.
EDIT: Use this Solution here: https://stackoverflow.com/a/20559175/2033223 Works perfect!
First of, thank for your solution @luizfelipetx
I changed your solution a little bit. This works for me:
public static String getRealPathFromDocumentUri(Context context, Uri uri){
String filePath = "";
Pattern p = Pattern.compile("(\\d+)$");
Matcher m = p.matcher(uri.toString());
if (!m.find()) {
Log.e(ImageConverter.class.getSimpleName(), "ID for requested image not found: " + uri.toString());
return filePath;
}
String imgId = m.group();
String[] column = { MediaStore.Images.Media.DATA };
String sel = MediaStore.Images.Media._ID + "=?";
Cursor cursor = context.getContentResolver().query(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
column, sel, new String[]{ imgId }, null);
int columnIndex = cursor.getColumnIndex(column[0]);
if (cursor.moveToFirst()) {
filePath = cursor.getString(columnIndex);
}
cursor.close();
return filePath;
}
Note: So we got documents and image, depending, if the image comes from 'recents', 'gallery' or what ever. So I extract the image ID first before looking it up.
I had similar problems. I removed the property="og:image:secure_url" and now it will scrub with just og:image. Sometimes, less is more
// copy /tmp/abc.txt to /tmp/abc.txt (target path)
// username and password of 10.1.1.2 is "username" and "password"
sshpass -p "password" scp /tmp/abc.txt [email protected]:/tmp/abc.txt
// install sshpass (ubuntu)
sudo apt-get install sshpass
Can I see your User class? This is just using restrictions below. I don't see why Restrictions would be really any different than Examples (I think null fields get ignored by default in examples though).
getCurrentSession().createCriteria(User.class)
.setProjection( Projections.distinct( Projections.projectionList()
.add( Projections.property("name"), "name")
.add( Projections.property("city"), "city")))
.add( Restrictions.eq("city", "TEST")))
.setResultTransformer(Transformers.aliasToBean(User.class))
.list();
I've never used the alaistToBean, but I just read about it. You could also just loop over the results..
List<Object> rows = criteria.list();
for(Object r: rows){
Object[] row = (Object[]) r;
Type t = ((<Type>) row[0]);
}
If you have to you can manually populate User yourself that way.
Its sort of hard to look into the issue without some more information to diagnose the issue.
Assuming you're using SQL Server, use DATEPART with dw:
SELECT date_created
FROM your_table
WHERE DATEPART(dw, date_created) NOT IN (1, 7);
EDIT: I should point out that the actual numeric value returned by DATEPART(dw) is determined by the value set by using SET DATEFIRST:
http://msdn.microsoft.com/en-us/library/ms181598.aspx
Update the data ... change button titles..whatever stuff you have to update..
then just call
[self.view setNeedsDisplay];
For reading full response in Angular you should add the observe option:
{ observe: 'response' }
return this.http.get(`${environment.serverUrl}/api/posts/${postId}/comments/?page=${page}&size=${size}`, { observe: 'response' });