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Define css class in django Forms
...can create a custom filter "addcss" in "my_app/templatetags/myfilters.py"
from django import template
register = template.Library()
@register.filter(name='addcss')
def addcss(value, arg):
css_classes = value.field.widget.attrs.get('class', '').split(' ')
if css_classes and arg not in css_...
socket.io and session?
I'm using express framework. I want to reach session data from socket.io. I tried express dynamicHelpers with client.listener.server.dynamicViewHelpers data, but i can't get session data. Is there a simple way to do this? Please see the code
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What are the pros and cons of both Jade and EJS for Node.js templating? [closed]
...h EJS. I don't have to do all the conversion when receiving HTML templates from my designer friend. All I have to do is to replace the dynamic parts with variables passed from ExpressJS. Stuff that make me crazy when using Jade are solved in EJS
<div class="<%= isAdmin? 'admin': '' %> user...
How to prune local tracking branches that do not exist on remote anymore
...merged master | egrep -v '^\s*\*?\s*master$' | xargs git branch -d. Output from git v2.10.1 will display "* master" when master is checked out. I get rid of master both with or without an asterisk.
– Esteban
May 16 '17 at 19:12
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Why is there “data” and “newtype” in Haskell? [duplicate]
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From application point of view, since newtype is a new name of an existing type, it is used to implement multiple instances of a class for that same underlying type. Now compiler won't complain if you attempt to define instan...
Get Slightly Lighter and Darker Color from UIColor
...ibility, these methods should be implemented as an UIColor category. Also, from @Riley's idea, it may be a better idea to make the color proprtionally darker or lighter instead of adding or subtracting constant values. As @jrturton pointed out, it's not necessary to manipulate the RGB components; it...
How does virtual inheritance solve the “diamond” (multiple inheritance) ambiguity?
...w.
So B::A and C::A are the same and so there can be no ambiguous calls from D. If you don't use virtual inheritance you have the second diagram above. And any call to a member of A then becomes ambiguous and you need to specify which path you want to take.
Wikipedia has another good rundown a...
When is finally run if you throw an exception from the catch block?
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from how I interpret his example he is attempting to do a try catch finally within another try block. NOT a try catch within a try catch finally
– Matthew Pigram
Feb 6 '14 at 23:07
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Solr vs. ElasticSearch [closed]
...ch provides an insightful analysis/comparison and explains why he switched from Solr to ElasticSeach, despite being a happy Solr user already - he summarizes this as follows:
Solr may be the weapon of choice when building standard search
applications, but Elasticsearch takes it to the next...
C# naming convention for constants?
... cOns3 = 3;
public static readonly int CONS4 = 4;
}
// Call constants from anywhere
// Since the class has a unique and recognizable name, Upper Case might lose its charm
private void DoSomething(){
var getCons1 = Constant.Cons1;
var getCons2 = Constant.coNs2;
var getCons3 = Constant.cOns3;
var...