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Bogus foreign key constraint fail
...neccessary to write all the drop statements in one query, eg.
SET FOREIGN_KEY_CHECKS=0;
DROP TABLE my_first_table_to_drop;
DROP TABLE my_second_table_to_drop;
SET FOREIGN_KEY_CHECKS=1;
Where the SET FOREIGN_KEY_CHECKS=1 serves as an extra security measure...
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How do you get current active/default Environment profile programmatically in Spring?
...n't need to implement EnvironmentAware. But I don't know drawbacks of this approach.
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Error 1022 - Can't write; duplicate key in table
...raints are currently in use you can use the following query:
SELECT `TABLE_SCHEMA`, `TABLE_NAME`
FROM `information_schema`.`KEY_COLUMN_USAGE`
WHERE `CONSTRAINT_NAME` IN ('iduser', 'idcategory');
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Detecting input change in jQuery?
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Docs for "input" event: whatwg.org/specs/web-apps/current-work/multipage/…
– jackocnr
Oct 14 '13 at 23:28
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Find() vs. Where().FirstOrDefault()
...lt;T>? (Rhetorical question.)
The Where and FirstOrDefault methods are applicable against multiple kinds of sequences, including List<T>, T[], Collection<T>, etc. Any sequence that implements IEnumerable<T> can use these methods. Find is available only for the List<T>. Me...
What do “branch”, “tag” and “trunk” mean in Subversion repositories?
...a development effort. It should never be named after a resource (like 'vonc_branch') but after:
a purpose 'myProject_dev' or 'myProject_Merge'
a release perimeter 'myProjetc1.0_dev'or myProject2.3_Merge' or 'myProject6..2_Patch1'...
Tag is a snapshot of files in order to easily get back to that s...
PHP function to get the subdomain of a URL
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Here's a one line solution:
array_shift((explode('.', $_SERVER['HTTP_HOST'])));
Or using your example:
array_shift((explode('.', 'en.example.com')));
EDIT: Fixed "only variables should be passed by reference" by adding double parenthesis.
EDIT 2: Star...
What happens to a detached thread when main() exits?
...), and that's well-defined, as long as it touches neither (automatic|thread_local) variables of other threads nor static objects.
This appears to be allowed to allow thread managers as static objects (note in [basic.start.term]/4 says as much, thanks to @dyp for the pointer).
Problems arise when t...
Rails: How do I create a default value for attributes in Rails activerecord's model? [duplicate]
...quivalent to x = true. You can see how that might pose a problem. It only happens with booleans because no other datatype in Ruby has a falsy value.
– Amadan
Jun 10 '13 at 0:42
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In JavaScript, why is “0” equal to false, but when tested by 'if' it is not false by itself?
... A friend of mine made f.cl.ly/items/3b0q1n0o1m142P1P340P/javascript_equality.html - the same graphs as above, but a bit easier to read.
– Lucy Bain
Dec 17 '14 at 22:50
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