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PHP session lost after redirect

...the session forward. Make sure your file extension is .php (it happens!) Now, these are the most common mistakes, but if they didn't do the trick, the problem is most likely to do with your hosting company. If everything works on localhost but not on your remote/testing server, then this is most l...
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form_for with nested resources

...s way works, but you can end up with extra routes that you probably don't know about. It's better to be explicit. – cdunn2001 Jun 28 '14 at 19:13 ...
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How do I test if a string is empty in Objective-C?

... Let me know if I'm wrong, but I think you could also omit == 0 part and add a negation in front: ![string length]. Seems more clean. – damirstuhec Aug 31 '14 at 20:29 ...
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Error: “dictionary update sequence element #0 has length 1; 2 is required” on Django 1.4

... Just ran into this problem. I don't know if it's the same thing that hit your code, but for me the root cause was because I forgot to put name= on the last argument of the url (or path in Django 2.0+) function call. For instance, the following functions throw t...
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Finding all objects that have a given property inside a collection [duplicate]

... (1) it's nice to know how it's implemented (2) it's usually not worth bringing in a whole extra library just for a simple method like this. – David Z Feb 26 '09 at 1:00 ...
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Close iOS Keyboard by touching anywhere using Swift

I have been looking all over for this but I can't seem to find it. I know how to dismiss the keyboard using Objective-C but I have no idea how to do that using Swift ? Does anyone know? ...
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Calling closure assigned to object property directly

... I know this is old, but I think Traits nicely handle this problem if you are using PHP 5.4+ First, create a trait that makes properties callable: trait CallableProperty { public function __call($method, $args) { if...
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pip broke. how to fix DistributionNotFound error?

...ich probably caused me this headache. I think this is how you should do it nowadays.. $ sudo apt-get install python-pip python-dev build-essential $ sudo pip install --upgrade pip $ sudo pip install --upgrade virtualenv ...
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Efficient way to insert a number into a sorted array of numbers?

... How does the First Method compare now that Chrome uses TimSort? From TimSort Wikipedia: "In the best case, which occurs when the input is already sorted, [TimSort] runs in linear time". – poshest Feb 5 at 11:40 ...
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How do I log a Python error with debug information?

...pplication does logging some other way – not using the logging module? Now, traceback could be used here. import traceback def log_traceback(ex, ex_traceback=None): if ex_traceback is None: ex_traceback = ex.__traceback__ tb_lines = [ line.rstrip('\n') for line in ...