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rails - Devise - Handling - devise_error_messages

...error_messsages! method is just a stub (though it contains implementation) and that we're supposed to override/replace it. It would have been nice if this was pointed out somewhere in the wiki, which is why i guess there are a few people like us that have been guessing. So I'm going to try reopenin...
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Difference Between One-to-Many, Many-to-One and Many-to-Many?

... so this is probably a trivial question but I'm having trouble visualizing and understanding the differences and when to use each. I'm also a little unclear as to how concepts like uni-directional and bi-directional mappings affect the one-to-many/many-to-many relationships. I'm using Hibernate righ...
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How to calculate number of days between two dates

...dates taking from Date Picker control. I have selected start date 2/2/2012 and end date 2/7/2012. I have written following code for that. ...
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What does ellipsize mean in android?

I've added an EditText to my layout, and added a hint, and made it centered horizontally. 9 Answers ...
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In Java, what is the best way to determine the size of an object?

...f data, but I want to make sure that I don't read in too many rows of data and cause OutOfMemoryError s. Each row translates into an object. Is there an easy way to find out the size of that object programmatically? Is there a reference that defines how large primitive types and object reference...
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Convert a PHP object to an associative array

... )), ) Typecasting this way will not do deep casting of the object graph and you need to apply the null bytes (as explained in the manual quote) to access any non-public attributes. So this works best when casting StdClass objects or objects with only public properties. For quick and dirty (what y...
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What is the best open XML parser for C++? [duplicate]

... How about RapidXML? RapidXML is a very fast and small XML DOM parser written in C++. It is aimed primarily at embedded environments, computer games, or any other applications where available memory or CPU processing power comes at a premium. RapidXML is licensed under ...
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Disable mouse scroll wheel zoom on embedded Google Maps

...st solution to this problem yet! We been facing this issue for a long time and this makes for a nice and pretty clean reusable fix! – Diego Paladino Aug 5 '14 at 5:47 11 ...
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jQuery AJAX file upload PHP

...e browser) sends the form data to the server, then a script on the server handles the upload. Here's an example using PHP. Your HTML is fine, but update your JS jQuery script to look like this: $('#upload').on('click', function() { var file_data = $('#sortpicture').prop('files')[0]; var...
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How to run Django's test database only in memory?

... if 'test' in sys.argv: DATABASES['default'] = {'ENGINE': 'sqlite3'} And finally in Django 1.3 and 1.4: if 'test' in sys.argv: DATABASES['default'] = {'ENGINE': 'django.db.backends.sqlite3'} (The full path to the backend isn't strictly necessary with Django 1.3, but makes the setting fo...