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Float vs Decimal in ActiveRecord
...ation defines floats in binary format. Basically, it stores sign, fraction and exponent to represent a Float. It's like a scientific notation for binary (something like +1.43*10^2). Because of that, it is impossible to store fractions and decimals in Float exactly.
That's why there is a Decimal for...
How to add multiple objects to ManyToMany relationship at once in Django ?
...mber of arguments, not a list of them.
add(obj1, obj2, obj3, ...)
To expand that list into arguments, use *
add(*[obj1, obj2, obj3])
Addendum:
Django does not call obj.save() for each item but uses bulk_create(), instead.
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convert from Color to brush
... );
now, if you need it in XAML, you COULD make a custom value converter and use that in a binding
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How to add additional fields to form before submit?
Is there a way to use javascript and JQuery to add some additional fields to be sent from a HTTP form using POST?
6 Answers...
Styling text input caret
...e caret of a focused <input type='text'/> . Specifically, the color and thickness.
5 Answers
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Installing Latest version of git in ubuntu
...a
sudo apt-get update
sudo apt-get install git
If add-apt-repository command is not found, install it first with
sudo apt-get install software-properties-common python-software-properties
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NuGet for solutions with multiple projects
... > Library Package Manager > Manage NuGet Packages for Solution...
And if you go to the Installed packages area you can 'Manage' a single package across every project in the solution.
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How can I set the Sender's address in Jenkins?
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Using Ubuntu 12.04, local exim4 and Jenkins 1.565.1, installed from the external repo, I had to set this in order to make mail delivery work.
– Max Hohenegger
Aug 21 '14 at 8:39
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What is the ellipsis (…) for in this method signature?
...tOfStrings is an array of String.
So you could save the compiler some work and pass an array:
String[] argsVar = {"first", "second"};
obj.PrintWithEllipsis(argsVar);
For varargs methods, a sequence parameter is treated as being an array of the same type. So if two signatures differ only in that o...
How can I catch a “catchable fatal error” on PHP type hinting?
...otes) that is not derived from Exception but Error; it's still a Throwable and can be handled with a normal try-catch block. see https://wiki.php.net/rfc/throwable-interface
E.g.
<?php
class ClassA {
public function method_a (ClassB $b) { echo 'method_a: ', get_class($b), PHP_EOL; }
}
class C...