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Purpose of “consider_all_requests_local” in config/environments/development.rb?
What is the purpose of this Rails config setting...
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What is the meaning of the term “free function” in C++?
While reading the documentation for boost::test, I came across the term "free function". What I understand is that a free function is any function that doesn't return anything (Its return type is void). But after reading further it seems that free functions also don't take any arguments. But I am no...
regex for matching something if it is not preceded by something else
So with regex in java, I want to write a regex that will match if and only if the pattern is not preceded by certain characters. For example:
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Escaping regex string
I want to use input from a user as a regex pattern for a search over some text. It works, but how I can handle cases where user puts characters that have meaning in regex?
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Unique constraint that allows empty values in MySQL
I have a field that stores product codes. The codes are unique, but some products simply doesn't have a code. I can't invent codes because those are providers codes.
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Insert the carriage return character in vim
I'm editing a network protocol frame stored a file in Unix ( \n newlines). I need to insert the carriage return character ( U+000D aka \r ). When I try to paste it from the clipboard ( "+p ) or type it using Ctrl + Shift + u - 000d , the linefeed is inserted ( U+000A ).
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Django fix Admin plural
How do I change some models name from "Categorys" to "Categories" on admin site in the new dev django version?
In the old version (whithout admin sites and admin models) you could just do this;
http://www.the-dig.com/blog/post/customize-plural-name-django-admin/
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Unpivot with column name
I have a table StudentMarks with columns Name, Maths, Science, English .
Data is like
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How do you create nested dict in Python?
I have 2 CSV files: 'Data' and 'Mapping':
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How can I append a string to an existing field in MySQL?
I want to update the code on all my record to what they currently are plus _standard any ideas?
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