大约有 40,000 项符合查询结果（耗时：0.0509秒） [XML]
Django: multiple models in one template using forms [closed]
...d and b_valid and c_valid:
a = formA.save()
b = formB.save(commit=False)
c = formC.save(commit=False)
b.foreignkeytoA = a
b.save()
c.foreignkeytoB = b
c.save()
Here are the docs for custom validation.
...
Automatic Preferred Max Layout Width is not available on iOS versions prior to 8.0
...nes set to anything but 1 if your deployment target is set to 7.1. This is completely reproducible with new single-view project.
Steps to Reproduce:
Create a new single-view, objective-c project
Set the Deployment Target to 7.1
Open the project's storyboard
Drop a label onto the provided view co...
What is the difference between Int and Integer?
...t least the range [ - 2^29,
2^29 - 1].
from the Haskell report: http://www.haskell.org/onlinereport/basic.html#numbers
share
|
improve this answer
|
follow
...
How to detect the device orientation using CSS media queries?
...tion:landscape) { … }
The CSS definition of a media query is at http://www.w3.org/TR/css3-mediaqueries/#orientation
share
|
improve this answer
|
follow
|
...
Direct casting vs 'as' operator?
Consider the following code:
17 Answers
17
...
Revert a range of commits in git
...revert -n B D
git commit -m "Revert commits B and D"
Reference: https://www.kernel.org/pub/software/scm/git/docs/git-revert.html
Thanks Honza Haering for the correction
share
|
improve this answ...
How to trigger a build only if changes happen on particular set of files
...egexes to determine whether to skip building based on whether files in the commit match the excluded region regex.
Unfortunately, the stock Git plugin does not have a "included region" feature at this time (1.15). However, someone posted patches on GitHub that work on Jenkins and Hudson that implem...
Should I use multiplication or division?
Here's a silly fun question:
25 Answers
25
...
Mocking Extension Methods with Moq
...bjectProperty, val);
}
For a more complete example, check out http://www.rhyous.com/2016/08/11/unit-testing-calls-to-complex-extension-methods/
share
|
improve this answer
|
...
Why are iframes considered dangerous and a security risk?
...
iframe is also vulnerable to Cross Frame Scripting:
https://www.owasp.org/index.php/Cross_Frame_Scripting
share
|
improve this answer
|
follow
...