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Rails: How do I create a default value for attributes in Rails activerecord's model? [duplicate]
I want to create a default value for an attribute by defining it in ActiveRecord. By default everytime the record is created, I want to have a default value for attribute :status . I tried to do this:
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What are advantages of Artificial Neural Networks over Support Vector Machines? [closed]
ANN (Artificial Neural Networks) and SVM (Support Vector Machines) are two popular strategies for supervised machine learning and classification. It's not often clear which method is better for a particular project, and I'm certain the answer is always "it depends." Often, a combination of both alon...
How to store Node.js deployment settings/configuration files?
I have been working on a few Node apps, and I've been looking for a good pattern of storing deployment-related settings. In the Django world (where I come from), the common practise would be to have a settings.py file containing the standard settings (timezone, etc), and then a local_settings.py ...
What is CMake equivalent of 'configure --prefix=DIR && make all install '?
I do cmake . && make all install . This works, but installs to /usr/local .
7 Answers
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What is the maximum length of a URL in different browsers?
What is the maximum length of a URL in different browsers? Does it differ among browsers?
18 Answers
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“java.lang.OutOfMemoryError : unable to create new native Thread”
We are getting "java.lang.OutOfMemoryError : unable to create new native Thread " on 8GB RAM VM after 32k threads (ps -eLF| grep -c java)
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Access lapply index names inside FUN
Is there a way to get the list index name in my lapply() function?
12 Answers
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What is the difference between POST and GET? [duplicate]
I've only recently been getting involved with PHP/AJAX/jQuery and it seems to me that an important part of these technologies is that of POST and GET .
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How to hide a in a menu with CSS?
I've realized that Chrome, it seems, will not allow me to hide <option> in a <select> . Firefox will.
13 Ans...
Why does HTML think “chucknorris” is a color?
How come certain random strings produce colors when entered as background colors in HTML? For example:
9 Answers
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