大约有 40,000 项符合查询结果（耗时：0.0618秒） [XML]
What is choice_set in this Django app tutorial?
...Question too, automatically generating a field on each instance called foo_set where Foo is the model with a ForeignKey field to that model.
choice_set is a RelatedManager which can create querysets of Choice objects which relate to the Question instance, e.g. q.choice_set.all()
If you don't like ...
How to set working/current directory in Vim?
...hich will also change to the directory the current file is in, but without setting autochdir.
:cd
will change directory to your home directory (or on windows, print the current directory).
:cd -
will change the directory to the previous directory you visited.
...
How to expire session due to inactivity in Django?
...pire the session on browser close with the SESSION_EXPIRE_AT_BROWSER_CLOSE setting. Then set a timestamp in the session on every request like so.
request.session['last_activity'] = datetime.now()
and add a middleware to detect if the session is expired. something like this should handle the whole...
How to make CSS width to fill parent?
...ements all have different rendering rules.
So for:
table#bar you need to set the width to 100% otherwise it will be only be as wide as it determines it needs to be. However, if the table rows total width is greater than the width of bar it will expand to its needed width. IF i recall you can count...
Can I set max_retries for requests.request?
...
It is the underlying urllib3 library that does the retrying. To set a different maximum retry count, use alternative transport adapters:
from requests.adapters import HTTPAdapter
s = requests.Session()
s.mount('http://stackoverflow.com', HTTPAdapter(max_retries=5))
The max_retries arg...
How to use a different version of python during NPM install?
...n use --python option to npm like so:
npm install --python=python2.7
or set it to be used always:
npm config set python python2.7
Npm will in turn pass this option to node-gyp when needed.
(note: I'm the one who opened an issue on Github to have this included in the docs, as there were so man...
How do I horizontally center an absolute positioned element inside a 100% width div? [duplicate]
...of your div), the concept is the same of left attribute.
It's important to set header element to position:relative.
try this:
#logo {
background:red;
height:50px;
position:absolute;
width:50px;
left:50%;
margin-left:-25px;
}
DEMO
If you would like to not use calculations ...
Return number of rows affected by UPDATE statements
...ted by an UPDATE query in a Stored Procedure (SQL Server 2005), as a resultset. e.g.
3 Answers
...
How to take off line numbers in Vi?
...u are talking about show line number command in vi/vim
you could use
set nu
in commandline mode to turn on and
set nonu
will turn off the line number display or
set nu!
to toggle off display of line numbers
...
Can a shell script set environment variables of the calling shell? [duplicate]
I'm trying to write a shell script that, when run, will set some environment variables that will stay set in the caller's shell.
...