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Explicitly set Id with Doctrine when using “AUTO” strategy
...ion: 1452 Cannot add or update a child row: a foreign key constraint fails errors. Downvoted
– ioleo
Sep 13 '14 at 11:53
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Enabling WiFi on Android Emulator
...s a
simulated Wi-Fi access point ("AndroidWifi"), and Android
automatically connects to it.
More Information:
https://developer.android.com/studio/run/emulator.html#wifi
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Why do some claim that Java's implementation of generics is bad?
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Sorry, why is the last line a compile error? I'm messing around with it in Eclipse & can't get it to fail there - if I add enough stuff for the rest of it to compile.
– oconnor0
Feb 4 '10 at 21:44
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PostgreSQL create table if not exists
...ot always work: gist.github.com/igilfanov/4df5e90d8a88d653132746a223639f45 ERROR: relation "foo" already exists
– igilfanov
Aug 16 '17 at 12:53
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Enable binary mode while restoring a Database from an SQL dump
...ng to restore a Database from a dumpfile in MySQL, but I get the following error:
16 Answers
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Regular Expression for alphanumeric and underscores
...o or more of the given characters
$ : end of string
If you don't want to allow empty strings, use + instead of *.
As others have pointed out, some regex languages have a shorthand form for [a-zA-Z0-9_]. In the .NET regex language, you can turn on ECMAScript behavior and use \w as a shorthand (y...
calculating the difference in months between two dates
...d I copied the code which you wrote above, but I am receiving compile time error. Error 1 Operator '-' cannot be applied to operands of type 'NodaTime.LocalDate' and 'NodaTime.LocalDate'. I know this post from 5 years, did any thing changed from that time , which make the this code not working?
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How do I concatenate or merge arrays in Swift?
...ith Sequence's flatMap(_:) method
Swift provides a flatMap(_:) method for all types that conform to Sequence protocol (including Array). flatMap(_:) has the following declaration:
Returns an array containing the concatenated results of calling the given transformation with each element of this ...
How to play ringtone/alarm sound in Android
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I still get an error - Failed to open ringtone content://settings/system/alarm_alert
– Pritesh Desai
Feb 10 '13 at 19:19
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Determine if 2 lists have the same elements, regardless of order? [duplicate]
... helper function. Note that it will be quite slow (O(n²)) and should generally not be used outside of the esoteric case of unhashable and unsortable elements.
def equal_ignore_order(a, b):
""" Use only when elements are neither hashable nor sortable! """
unmatched = list(b)
for element...