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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...
How can I use Timer (formerly NSTimer) in Swift?
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You can declare Var timer: NSTimer! initially and use it whenever needed!
– Nigilan
Sep 1 '15 at 7:38
1
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VS 2010 Test Runner error “The agent process was stopped while the test was running.”
... exception occurs in a finalizer on a type, and that finalizer runs before all the tests has finished, Visual Studio will give the error I was facing; without any further explanation, and on random tests.
– driis
May 25 '10 at 14:14
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How to add title to subplots in Matplotlib?
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A shorthand answer assuming
import matplotlib.pyplot as plt:
plt.gca().set_title('title')
as in:
plt.subplot(221)
plt.gca().set_title('title')
plt.subplot(222)
etc...
Then there is no need for superfluous variables.
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Can mustache iterate a top-level array?
...ered Apr 4 '12 at 15:15
Dan JordanDan Jordan
1,83011 gold badge1212 silver badges66 bronze badges
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Binding a WPF ComboBox to a custom list
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You set the DisplayMemberPath and the SelectedValuePath to "Name", so I assume that you have a class PhoneBookEntry with a public property Name.
Have you set the DataContext to your ConnectionViewModel object?
I copied you code and made some minor modif...
Get file name from URL
... In version commons-io 2.2 at least you still need to manually handle URLs with parameters. E.g. "example.com/file.xml?date=2010-10-20"
– Luke Quinane
Aug 13 '13 at 5:14
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How to parse JSON in Scala using standard Scala classes?
...n in the rest of the for loop I use the fact that generators (using <-) and value definitions (using =) will make use of the unapply methods.
(Older answer edited away - check edit history if you're curious)
share
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How to get all properties values of a JavaScript Object (without knowing the keys)?
... for you:
for (var key in obj) {
if (Object.prototype.hasOwnProperty.call(obj, key)) {
var val = obj[key];
// use val
}
}
The nested if makes sure that you don't enumerate over properties in the prototype chain of the object (which is the behaviour you almost certainly wan...
Difference between variable declaration syntaxes in Javascript (including global variables)?
...here are a couple of differences, though in practical terms they're not usually big ones.
There's a fourth way, and as of ES2015 (ES6) there's two more. I've added the fourth way at the end, but inserted the ES2015 ways after #1 (you'll see why), so we have:
var a = 0; // 1
let a = 0; // 1...