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How do I perform the SQL Join equivalent in MongoDB?
...mmend specific use cases for $lookup, but at least as of 3.2 doing join is now possible with MongoDB.
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Resolve build errors due to circular dependency amongst classes
... break it by allowing the compiler to instead reserve as much space as it knows about upfront - pointers and references, for example, will always be 32 or 64 bits (depending on the architecture) and so if you replaced (either one) by a pointer or reference, things would be great. Let's say we replac...
jQuery AJAX file upload PHP
... display response from the PHP script, if any
}
});
});
And now for the server-side script, using PHP in this case.
upload.php: a PHP script that runs on the server and directs the file to the uploads directory:
<?php
if ( 0 < $_FILES['file']['error'] ) {
echo 'Er...
How to use PyCharm to debug Scrapy projects
...a good Python debugger. I want to test my Scrapy spiders using it. Anyone knows how to do that please?
10 Answers
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Elegant setup of Python logging in Django
...best way I've found so far is to initialize logging setup in settings.py - nowhere else. You can either use a configuration file or do it programmatically step-by-step - it just depends on your requirements. The key thing is that I usually add the handlers I want to the root logger, using levels and...
PDO Prepared Inserts multiple rows in single query
...bably have a loop that populates data.
With prepared inserts you need to know the fields you're inserting to, and the number of fields to create the ? placeholders to bind your parameters.
insert into table (fielda, fieldb, ... ) values (?,?...), (?,?...)....
That is basically how we want the in...
Objective-C : BOOL vs bool
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Got to know different behaviour take a look at below. NSInteger progressTime = 2;//any value NSInteger totalTime = 1;//any value BOOL success = (progressTime>=totalTime)//it is always gives NO But Once I received...
What's wrong with using $_REQUEST[]?
...ill have to sanitize this data, but it's one less thing to worry about.
Now you might wonder, why does $_REQUEST exists after all and why it is not removed. This was asked on PHP Internals as well. Citing Rasmus Lerdorf about Why does $_REQUEST exist? on PHP Internals
The more stuff like this...
Django MEDIA_URL and MEDIA_ROOT
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I've been struggling for 2 days now why my images return 404. This is the only thing I'm missing and I can't find it in Django doc. Thanks.
– tambalolo
Aug 12 '13 at 2:45
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How to compare times in Python?
...truggling to find out how to check if the current time ( datetime.datetime.now() ) is earlier, later or the same than a specified time (e.g. 8am) regardless of the date.
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