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How to change a nullable column to not nullable in a Rails migration?
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Do you have the use the 'up'/'down' method in this migration, or can you the simple change method in the migration?
– E.E.33
Aug 30 '12 at 2:34
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Sort Go map values by keys
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Which version of MVC am I using?
... the minimum .net runtime version you can use / to the min version you can down grade your project so that the assembly still works.
– Ramu
May 18 '16 at 15:12
add a comment
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What exactly is an HTTP Entity?
...the entity.
Content-Type: text/plain # ┬ The entity is from this line down...
Content-Length: 1234 # │
# │
Hello, World! ... # ┘
And a response:
HTTP/1.1 200 OK # Not part of the entity.
Content-Length: 438 # ┬ The enti...
Is it possible to use JS to open an HTML select to show its option list? [duplicate]
...ive control, which is a reason why you might want to open the options drop down using js. If you set the opacity of the <select> to 0, when the user clicks the invisible select, the drop down of options will appear as normal.
– Chris Snyder
Jul 21 '15 at...
How do you input commandline argument in IntelliJ IDEA?
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There's an "edit configurations" item on the Run menu, and on the pull-down to the left of the two green "run" and "debug" arrows on the toolbar. In that panel, you create a configuration with the "+" button in the top left, and then you can choose the Class containing main(), add VM parameters...
How to check if an activity is the last one in the activity stack for an application?
... their mind about existing the application, you could intercept the key up/down for the Back key and the onBackPressed() method and present them with an "Are you sure?" prompt.
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Change font size of UISegmentedControl
...ther option is to apply a transform to the control. However, it will scale down everything including the control borders.
segmentedControl.transform = CGAffineTransformMakeScale(.6f, .6f);
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What's the difference between UTF-8 and UTF-8 without BOM?
... ASCII because the BOM is not ASCII, which makes some existing tools break down, and it can be impossible for users to replace such legacy tools.
It is not possible to concatenate several files together because each file now has a BOM at the beginning.
And, as others have mentioned, it is neither ...
Logging best practices [closed]
...nformation to a "flight recorder" whilst running and then when you shut it down if it had no problems then it simply deleted the file.
If, however it crashed or encountered a problem then the file was not deleted. Either if it catches the error, or the next time it runs it will notice the file, and...