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In Django, how do I check if a user is in a certain group?
...add(group) # user is now in the "Editor" group
then user.groups.all() returns [<Group: Editor>].
Alternatively, and more directly, you can check if a a user is in a group by:
if django_user.groups.filter(name = groupname).exists():
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Note that groupname can also be the ac...
How to customize the background/border colors of a grouped table view cell?
...later UITableViewCell now has a backgroundColor property that makes this really easy (especially in combination with the [UIColor colorWithPatternImage:] initializer). But I'll leave the 2.0 version of the answer here for anyone that needs it…
It's harder than it really should be. Here's how I ...
Execute the setInterval function without delay the first time
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It's simplest to just call the function yourself directly the first time:
foo();
setInterval(foo, delay);
However there are good reasons to avoid setInterval - in particular in some circumstances a whole load of setInterval events can arrive imm...
Concept of void pointer in C programming
...ith explicit metainformation, like the int b in your example or the format string in the printf family of functions.
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Putty: Getting Server refused our key Error
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OK, there was a small typo in my key. Apparently when pasting to file the first letter was cut off and it started with sh-rsa instead of ssh-rsa.
nrathathaus - your answer was very helpful, thanks a lot, this answer is credited to you :) I di...
What should my Objective-C singleton look like? [closed]
My singleton accessor method is usually some variant of:
26 Answers
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Apply CSS style attribute dynamically in Angular JS
... attribute, and conditional/scope styles into an ng-style attribute. Also, string keys are not necessary. For hyphen-delimited CSS keys, use camelcase.
<div ng-style="{backgroundColor: data.backgroundCol}" style="width:20px; height:20px; margin-top:10px; border:solid 1px black;"></div>...
How do I get the full url of the page I am on in C#
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I usually use Request.Url.ToString() to get the full url (including querystring), no concatenation required.
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What are the benefits to marking a field as `readonly` in C#?
...ass. In my opinion, that's a benefit worth having (at the small expense of extra language complexity as doofledorfer mentions in the comments).
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App Inventor 2 中的响应式设计 · App Inventor 2 中文网
...een width as 600 and the button width as 300. As a result, you have the extra resolution to work with in your app design for the tablet.
It’s also possible to take mixed approaches. These can be more confusing and less useful, and we recommend that you use them only in special circumstances. ...