43 lines
1.5 KiB
Markdown
43 lines
1.5 KiB
Markdown
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# activerecord-import
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activerecord-import is a library for bulk inserting data using ActiveRecord. By default with ActiveRecord, in order to insert multiple records you have to perform individual save operations on each model, like so:
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10.times do |i|
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Book.create! :name => "book #{i}"
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end
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This may work fine if all you have is 10 records, but if you have hundreds, thousands, or millions of records it can turn into a nightmare. This is where activerecord-import comes into play. Here's the equivalent behaviour using the #import method:
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books = []
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10.times{ |i| books << Book.new(:name => "book #{i}") }
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Book.import books
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Pretty slick, eh?
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Maybe, just maybe you're thinking, why do I have do instantiate ActiveRecord objects? Will that perform validations? What if I don't want validations? What if I want to take advantage of features like MySQL's on duplicate key update? Well, activerecord-import handles all of these cases and more!
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For more documentation on the matter you can refer to two places:
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1. activerecord-import github wiki: http://wiki.github.com/zdennis/activerecord-import/
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1. the tests in the code base
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Note: the tests have been updated since the previous version of ar-extensions to provide better readability and easier maintenance.
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# LICENSE
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This is licensed under the ruby license.
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# Author
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Zach Dennis (zach.dennis@gmail.com)
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# Contributor
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* Blythe Dunham
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* Gabe da Silveira
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* Henry Work
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* James Herdman
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* Marcus Crafter
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* Thibaud Guillaume-Gentil
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* Mark Van Holstyn
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