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In a Django form, how do I make a field readonly (or disabled) so that it cannot be edited?
...’s initial data.
With Django 1.8 and earlier, to disable entry on the widget and prevent malicious POST hacks you must scrub the input in addition to setting the readonly attribute on the form field:
class ItemForm(ModelForm):
def __init__(self, *args, **kwargs):
super(ItemForm, sel...
Why do you need to put #!/bin/bash at the beginning of a script file?
.../bin/perl or #!/bin/perl5.
PS:
The exclamation mark (!) is affectionately called "bang". The shell comment symbol (#) is sometimes called "hash".
PPS:
Remember - under *nix, associating a suffix with a file type is merely a convention, not a "rule". An executable can be a binary program, any one...
Does reading an entire file leave the file handle open?
...e, in an expression, and becomes inaccessible immediately after the read() call returns.
This means that the file object is garbage. The only remaining question is "When will the garbage collector collect the file object?".
in CPython, which uses a reference counter, this kind of garbage is notic...
What's the difference between an inverted index and a plain old index?
...hey arise. My question was: "why did the people who named inverted indexes call them inverted when we have a long standing tradition which calls them just plain indexes? For example, indexes at the end of books, as you point out, are actually inverted. Going by historical perspective, the indexes at...
C fopen vs open
... that case it's even better to use pread instead of a seek/read pair (1 syscall instead of 2).
– Patrick Schlüter
May 5 '10 at 13:16
2
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How can I add an element after another element?
...
try using the after() method:
$('#bla').after('<div id="space"></div>');
Documentation
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How do I view the full content of a text or varchar(MAX) column in SQL Server 2008 Management Studio
...uld actually be a varchar(MAX) column, but whoever set this database up did not do it that way.)
10 Answers
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Is there common street addresses database design for all addresses of the world? [closed]
...t to query and dynamic to store all street addresses of the world which is identifying just by one id Thanks a lot
12 Ans...
What is the difference between the Eclipse Package Explorer and the Eclipse Project Explorer?
It seems to me these two views are virtually identical, especially since Galileo. Is this true, or am I missing out on some features of one or the other?
...
Confused about Service vs Factory
...ns that there is only one instance of a given service per injector.
Basically the difference between the service and factory is as follows:
app.service('myService', function() {
// service is just a constructor function
// that will be called with 'new'
this.sayHello = function(name) {
...