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Determine what attributes were changed in Rails after_save callback?
...ls 5.1 (but is deprecated in 5.1 and has breaking changes in 5.2). You can read about the change in this pull request.
In your after_update filter on the model you can use _changed? accessor. So for example:
class SomeModel < ActiveRecord::Base
after_update :send_notification_after_change
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When restoring a backup, how do I disconnect all active connections?
...the wait time? If so, I wonder if it's a cleaner/nicer way to at least let read-only actions complete rather then end them abruptly?
– Jason
Feb 8 '18 at 16:01
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Node JS Error: ENOENT
...older. Adding a period (.) in front of the path explicitly changes this to read "start from the current working directory", but is basically the same as leaving the forward slash out completely.
./tmp/test.jpg = tmp/test.jpg
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What is the best way to find the users home directory in Java?
..., not a correct answer, this is the same one as above. Yes, I did not only read the JavaDocs, but I also tried it out on all platforms before asking this question! The answer is not so simple.
– Bruno Ranschaert
Mar 3 '09 at 17:34
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Check if a value is an object in JavaScript
... are considered to be objects. For a more detailed answer, you'll have to read up on typeof because it has a few special cases that don't necessarily make a whole lot of sense. If you're trying to differentiate between arrays and objects which are not arrays, then you definitely don't want to use ...
Purpose of returning by const value? [duplicate]
...n the standard. Should be able to create an object which cannot be copied, read or updated. For small values of "x = 4".
– user4624979
Jul 14 '15 at 17:49
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How do negated patterns work in .gitignore?
...it never even examines the path aaa/ccc. If you use the wildcard, it still reads the contents of aaa, then each entry matches the wildcard and is ignored, except aaa/ccc which gets put back in.
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When should TaskCompletionSource be used?
... @Tola As that would have created a new task running on a threadpool thread, but the code above utilizes the i/o completion thread started by BeginAccept, i.o.w.: it doesn't start a new thread.
– Frans Bouma
Nov 11 '14 at 11:47
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How to print the values of slices
...code is going produce and output like this one:
For more details, please read: https://github.com/inancgumus/prettyslice
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Good Linux (Ubuntu) SVN client [closed]
...wn my machine to the point of unusability.
– Matthew Read
Nov 30 '11 at 22:15
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