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Django: How do I add arbitrary html attributes to input fields on a form?
... earlier to modify 3 fields: ``` for field_name in ['image', 'image_small', 'image_mobile']: field = self.fields.get(field_name) field.widget.attrs['data-file'] = 'file' ```
– Stuart Axon
Jun 6 '14 at 11:59
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No Exception while type casting with a null in java
...{ ... }
then it would make a difference if you type
foo((String) null) vs. foo(null)
b) if you intend to use your IDE to generate code; for example I am typically writing unit tests like:
@Test(expected=NullPointerException.class)
public testCtorWithNullWhatever() {
new MyClassUnderTest((...
What's the deal with a leading underscore in PHP class methods?
... { to give it some extra weight.
I've never heard of developers prefacing all their methods with underscores, so I can't begin to explain what causes that.
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Specify sudo password for Ansible
...
For example, you might have a playbook something like this:
- hosts: all
vars_files:
- secret
tasks:
- name: Do something as sudo
service: name=nginx state=restarted
sudo: yes
Here we are including a file called secret which will contain our sudo password.
We will...
What are the benefits of learning Vim? [closed]
...years, more or less. If there's something I've never gotten used to during all this time, it's these annoying and almost unconscious constant micro-interruptions I experience while coding, due to some of the most common code editing tasks. Things like a simple copy & paste from a different line (or ...
How to detect iPhone 5 (widescreen devices)?
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First of all, you shouldn't rebuild all your views to fit a new screen, nor use different views for different screen sizes.
Use the auto-resizing capabilities of iOS, so your views can adjust, and adapt any screen size.
That's not v...
Understanding typedefs for function pointers in C
...es' code which had typedefs for pointers to functions with arguments. I recall that it took me a while to get around to such a definition while trying to understand a numerical algorithm written in C a while ago. So, could you share your tips and thoughts on how to write good typedefs for pointers t...
What causes “Unable to access jarfile” error?
...ws, using cygwin. So cygwin uses different paths than windows /cygdrive/c/ vs C:\ I fixed this by using realpath --relative-to=$(pwd) path/to/jarfile So it will always enforce a relative path iso using /cygdrive/c/.../path/to/jarfile
– Rik
Jun 14 '16 at 9:42
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Best way to use Google's hosted jQuery, but fall back to my hosted library on Google fail
...the very least, the browser would have to delay execution to occur sequentially.
– gapple
Jun 24 '09 at 20:16
42
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How to import a Python class that is in a directory above?
...on __file__ to find out the parent directory (a couple of os.path.dirname calls will do;-), then (if that directory is not already on sys.path) prepend temporarily insert said dir at the very start of sys.path, __import__, remove said dir again -- messy work indeed, but, "when you must, you must" (a...