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django admin - add custom form fields that are not part of the model
...e:
class MyModel(models.model):
field1 = models.CharField(max_length=10)
field2 = models.CharField(max_length=10)
def combined_fields(self):
return '{} {}'.format(self.field1, self.field2)
Then in the admin you can add the combined_fields() as a readonly field:
class MyMode...
What is the difference between server side cookie and client side cookie?
... from the server:
HTTP/1.1 200 OK
Content-type: text/html
Set-Cookie: foo=10
Set-Cookie: bar=20; Expires=Fri, 30 Sep 2011 11:48:00 GMT
... rest of the response
Here two cookies foo=10 and bar=20 are stored on the browser. The second one will expire on 30 September.
In each subsequent request th...
Get original URL referer with PHP?
...owLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\...
Is there a more elegant way of adding an item to a Dictionary safely?
...
answered Jul 24 '09 at 13:10
Jon SkeetJon Skeet
1211k772772 gold badges85588558 silver badges88218821 bronze badges
...
Why use Ruby's attr_accessor, attr_reader and attr_writer?
...attributes, such as: attr_accessor :a, :b
– Andrew_1510
Jan 22 '14 at 6:55
2
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String concatenation does not work in SQLite
...
answered Aug 25 '10 at 17:54
codaddictcodaddict
394k7777 gold badges473473 silver badges507507 bronze badges
...
How do I use Assert to verify that an exception has been thrown?
...se)
– Ruben Bartelink
Jun 25 '09 at 10:48
29
This attribute gets the job done and is a built-in f...
Maximum length for MD5 input/output
...
answered Aug 3 '10 at 7:46
Daniel VassalloDaniel Vassallo
301k6666 gold badges475475 silver badges424424 bronze badges
...
How to get first N elements of a list in C#?
...
I believe this answer is useful even now, 10 years and many C# versions later. For the specific case where you have a list. Especially if you are skipping many items. E.g. you have a list of one million items, and you want a slice of 5 of them, far into the list. Get...
What is the max size of localStorage values?
...lly as an improvement on cookies, providing much greater storage capacity (10 MB per origin in Google Chrome(https://plus.google.com/u/0/+FrancoisBeaufort/posts/S5Q9HqDB8bh), Mozilla Firefox, and Opera; 10 MB per storage area in Internet Explorer) and better programmatic interfaces.
And also quoti...