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Explicitly set Id with Doctrine when using “AUTO” strategy

... New solution works fine only when ALL entities have id before insert. When one entity has ID and another one does not - new solution is failing. I use this function for import all my data: function createEntity(\Doctrine\ORM\EntityManager $em, $entity, $id ...
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Can two different strings generate the same MD5 hash code?

...ile there are no such known attacks (preimage attacks) against MD5 (as of 2011), it could become possible by extending the current research on collision attacks. If these turn out to be a problem, I suggest looking at the SHA-2 series of hash functions (SHA-256, SHA-384 and SHA-512). The downside i...
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How to continue a Docker container which has exited

...r container created. -q merely suppresses other info (bedsides the id) usually output by `docker ps`. ---- note: Backtick is not a quotation sign, it has a very special meaning. Everything you type between backticks is evaluated (executed) by the shell before the main command - unix.stackexch...
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How to update column with null value

...ed Oct 6 '10 at 8:11 Daniel VassalloDaniel Vassallo 301k6666 gold badges475475 silver badges424424 bronze badges ...
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Script to kill all connections to a database (More than RESTRICTED_USER ROLLBACK)

... Such a nice answer for aggregating kill statements all together. I would use a cursor to kill each process, which of course is not efficient at all. The technique used in this answer is brilliant. – Saeed Neamati Mar 2 '14 at 6:27 ...
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How to validate a url in Python? (Malformed or not)

... Actually, I think this is the best way. from django.core.validators import URLValidator from django.core.exceptions import ValidationError val = URLValidator(verify_exists=False) try: val('http://www.google.com') except Val...
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Multiprocessing vs Threading Python [duplicate]

... There is actually a good deal of difference: eli.thegreenplace.net/2012/01/16/… – Andrew Sledge May 29 '13 at 11:36 ...
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Bootstrap modal appearing under background

...tive position this behavior will occur. Make sure the modal container and all of its parent elements are positioned the default way to fix the problem. Here are a couple ways to do this: Easiest way is to just move the modal div so it is outside any elements with special positioning. One good p...
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How to convert a normal Git repository to a bare one?

...s inside the .git directory. But I don't know if any of the files are actually changed, so if that fails, you can just do git clone --bare /path/to/repo You'll probably need to do it in a different directory to avoid a name conflict, and then you can just move it back to where you want. And yo...
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How can I convert ereg expressions to preg in PHP?

...pha-numeric, a backslash or a whitespace character. The most used are generally ~, / and #. You can also use matching brackets: preg_match('[^hello]', $str); preg_match('(^hello)', $str); preg_match('{^hello}', $str); // etc If your delimiter is found in the regular expression, you have to escap...