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Rails 3 datatypes?

Where can I find a list of data types that can be used in rails 3? (such as text, string, integer, float, date, etc.?) I keep randomly learning about new ones, but I'd love to have a list I could easily refer to. ...
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Android JSONObject - How can I loop through a flat JSON object to get each key and value

How I can get each item's key and value without knowing the key nor value beforehand? 5 Answers ...
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List vs Set vs Bag in NHibernate

What's the difference between a list, set and bag in the NHibernate mapping file? How does each relate to .NET collections? ...
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Git submodule add: “a git directory is found locally” issue

I'm actually trying to learn how to use git, including the git submodule subcommands. I already set up a server on which I can host, push and pull git repositories by using SSH. I created a main git repository "Travail" on this server in which I would like to put all my projects as submodules. ...
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What does iota of std::iota stand for?

I'm assuming the "i" is increment and the "a" is assign, but I could not figure out or find the answer. Also, it looks very similar to the non-standard itoa which I think is confusing. ...
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file_get_contents(“php://input”) or $HTTP_RAW_POST_DATA, which one is better to get the body of JSON

file_get_contents("php://input") or $HTTP_RAW_POST_DATA - which one is better to get the body of JSON request? 6 Answers...
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Batch renaming files with Bash

How can Bash rename a series of packages to remove their version numbers? I've been toying around with both expr and %% , to no avail. ...
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What is the behavior difference between return-path, reply-to and from?

On our mailing application we are sending emails with the following header: 4 Answers ...
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Ruby class types and case statements

What is the difference between 5 Answers 5 ...
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Rails how to run rake task

How do I run this rake file in terminal/console? 6 Answers 6 ...