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How to debug PDO database queries?
...ring, try it myself on the database, and tweak it until I fixed the error, then put that back into the code.
18 Answers
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Mongoose (mongodb) batch insert?
...sage:
var rawDocuments = [/* ... */];
Book.insertMany(rawDocuments)
.then(function(mongooseDocuments) {
/* ... */
})
.catch(function(err) {
/* Error handling */
});
Or
Book.insertMany(rawDocuments, function (err, mongooseDocuments) { /* Your callback function......
Singular or plural controller and helper names in Rails
...Rails expects that the identifiers I define as a singular in one place are then used in their plural forms in other places. For example, I might want to define something like this in config/routes.rb:
resource :dashboard, :only => [:show]
and then I want a controller DashboardController to d...
Properties file in python (similar to Java Properties)
...e as well. You could rename your myconfig.properties file to myconfig.py. Then just import your file, like this
import myconfig
and access the properties directly
print myconfig.propertyName1
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How do you create a daemon in Python?
...ython-daemon library. You can install it by:
pip install python-daemon
Then just start it with ./howdy.py start, and stop it with ./howdy.py stop.
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How do I use Assert.Throws to assert the type of the exception?
...assertion will fail. However if an exception of the correct type is thrown then you can now assert on the actual exception that you've saved in the variable.
By using this pattern you can assert on other things than the exception message, e.g. in the case of ArgumentException and derivatives, you c...
How to check that a string is an int, but not a double, etc.?
...pe_digit($integer); // false
If your input might be of type int, then combine ctype_digit with is_int.
If you care about negative numbers, then you'll need to check the input for a preceding -, and if so, call ctype_digit on a substr of the input string. Something like this would do it:
...
How does Go update third-party packages?
...
Since the question mentioned third-party libraries and not all packages then you probably want to fall back to using wildcards.
A use case being: I just want to update all my packages that are obtained from the Github VCS, then you would just say:
go get -u github.com/... // ('...' being the ...
How to change the status bar color in Android?
...width="match_parent"
android:layout_height="wrap_content" />
then i made this method:
public void setStatusBarColor(View statusBar,int color){
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
Window w = getWindow();
w.setFlags(WindowManager.Layo...
How do I duplicate a whole line in Emacs?
...
Place cursor on line, if not at beginning do a CTRL-A, then:
CTRL-K
CTRL-K
CTRL-Y
CTRL-Y
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