Creating a Rails query from a hash of user input

Posted by Jamie on Stack Overflow See other posts from Stack Overflow or by Jamie
Published on 2014-06-10T09:26:36Z Indexed on 2014/06/12 15:25 UTC
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I'm attempting to create a fairly complex search engine for a project using a variable number of search criteria. The user input is sorted into an array of hashes. The hashes contain the following information:

{
    :column => "",
    :value => "",
    :operator => "", # Such as: =, !=, <, >, etc.
    :and_or => "", # Two possible values: "and" and "or"
}

How can I loop through this array and use the information in these hashes to make an ActiveRecord WHERE query?

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