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How to change a nullable column to not nullable in a Rails migration?
...and set it to be nullable. Now I want to change it to be not nullable. How do I go about doing this assuming there are null rows in that database? I'm ok with setting those columns to Time.now if they're currently null.
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Is there a constraint that restricts my generic method to numeric types?
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C# does not support this. Hejlsberg has described the reasons for not implementing the feature in an interview with Bruce Eckel:
And it's not clear that the added complexity is worth the small yield that you get. If somethin...
pass post data with window.location.href
When using window.location.href, I'd like to pass POST data to the new page I'm opening. is this possible using JavaScript and jQuery?
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How to remove a field completely from a MongoDB document?
Suppose this is a document. How do I remove " words " completely from all the documents in this collection? I want all documents to be without " words ":
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text-overflow: ellipsis not working
...test</span>
Addendum
If you want an overview of techniques to do line clamping (Multiline Overflow Ellipses), look at this CSS-Tricks page: https://css-tricks.com/line-clampin/
Addendum2 (May 2019)
As this link claims, Firefox 68 will support -webkit-line-clamp (!)
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Feedback on using Google App Engine? [closed]
Looking to do a very small, quick 'n dirty side project. I like the fact that the Google App Engine is running on Python with Django built right in - gives me an excuse to try that platform... but my question is this:
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Looping a video with AVFoundation AVPlayer?
...= AVPlayerActionAtItemEndNone;
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(playerItemDidReachEnd:)
name:AVPlayerItemDidPlayToEndTimeNotification
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How and why do I set up a C# build machine? [closed]
...team on a C# project. I've proposed setting up a build machine which will do nightly builds and tests of the project, because I understand that this is a Good Thing. Trouble is, we don't have a whole lot of budget here, so I have to justify the expense to the powers that be. So I want to know:
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How do you force Visual Studio to regenerate the .designer files for aspx/ascx files?
...available in the right-click context menu for as(c/p)x files. When this is done you should see that you now have a *.Designer.cs file available and your controls within the Design HTML will be available for your control.
PS: This should not be done in debug mode, as not everything is "recompiled" w...
What exactly does the “u” do? “git push -u origin master” vs “git push origin master”
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The key is "argument-less git-pull". When you do a git pull from a branch, without specifying a source remote or branch, git looks at the branch.<name>.merge setting to know where to pull from. git push -u sets this information for the branch you're pushing.
To se...