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Django admin: how to sort by one of the custom list_display fields that has no database field
...ustom manager for Customer which includes the number of orders aggregated, and then setting admin_order_field to that aggregate, ie
from django.db import models
class CustomerManager(models.Manager):
def get_query_set(self):
return super(CustomerManager, self).get_query_set().annotat...
format statement in a string resource file
...t markers - %[POSITION]$[TYPE] (where [POSITION] is the attribute position and [TYPE] is the variable type), rather than the short versions, for example %s or %d.
Quote from Android Docs: String Formatting and Styling:
<string name="welcome_messages">Hello, %1$s! You have %2$d new messages....
Case insensitive regex in JavaScript
I want to extract a query string from my URL using JavaScript, and I want to do a case insensitive comparison for the query string name. Here is what I am doing:
...
Get all keys of an NSDictionary as an NSArray
...
And if you want to get all keys and values, here's what you do:
for (NSString *key in dictionary) {
id value = dictionary[key];
NSLog(@"Value: %@ for key: %@", value, key);
}
...
Pip install Matplotlib error with virtualenv
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Building Matplotlib requires libpng (and freetype, as well) which isn't a python library, so pip doesn't handle installing it (or freetype).
You'll need to install something along the lines of libpng-devel and freetype-devel (or whatever the equivalent is for...
Case-INsensitive Dictionary with string key-type in C#
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This seemed related, but I didn't understand it properly: c# Dictionary: making the Key case-insensitive through declarations
It is indeed related. The solution is to tell the dictionary instance not to use the standard string compare method (which is case sensiti...
Can you have additional .gitignore per directory within a single repo?
...an you create a .gitignore file in a directory that only applies to files (and directories) within that directory?
3 Answer...
React.js: Identifying different inputs with one onChange handler
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I suggest sticking to standard HTML attributes like name on input Elements to identify your inputs. Also, you don't need to keep "total" as a separate value in state because it is composable by adding other values in your state:
var Hello = React.c...
Assign variables to child template in {% include %} tag Django
...ote that if you want to render the template only with the given variables (and doesn't inherit the parent context) you can add the "only" option: {% include "path/to/template.html" with form=form only }}
– gonz
Apr 1 '15 at 15:07
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How to get full path of a file?
... @J0hnG4lt: that's because you installed coreutils with homebrew and changed your PATH to point to the unprefixed binaries. Installing coreutils, leaving PATH alone, and using "greadlink" would work as well.
– Tim Smith
Jul 25 '14 at 20:43
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