DataMapper is an Object Relational Mapper written in Ruby. The goal is to create an ORM which is fast, thread-safe and feature rich.
To learn a little more about this project and why you should be interested,
read the Why Datamapper? page.
Recent News
DataMapper 1.2.0 released
DataMapper 1.2.0 is here!
Read more
Help
If you're having trouble, don't forget to check the documentation, which has both references and step by step tutorials.
</div>Issues
If you're still having trouble, or you think you came across something you think might be a bug, let us know.
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News
- DataMapper 1.2.0 released
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DataMapper 1.2.0 is here!
- DataMapper 1.1.0 released
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DataMapper 1.1.0 is here!
- DataMapper 1.0.2 released
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DataMapper 1.0.2 is here!
- DataMapper 1.0 released
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DataMapper 1.0 is here! There are changes to be aware of so please, read on.
- DataMapper 1.0.0 rc3 released
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Includes several bugs fixes for issues found in rc2, as well as a few other tickets in the queue.
- DataMapper 1.0.0 rc2 released
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We are starting a public RC process now to make sure the installation process is solid and that the API is stable before 1.0 is released at RailsConf.
- DataMapper 0.10.2 is Released
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New Set Operations, bug fixes and more specs round out this solid release.
- DataMapper at RubyEnRails Amsterdam 2009
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Presentation on DataMapper by dbussink
- DataMapper 0.10 is Released
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After 11 months of work, over 1250 commits and 140 tickets fixed 0.10 is ready
- DataMapper Presented at RailsConf 2008
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A warm reception for a very cool ORM
- DataMapper 0.9 is Released
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And you thought that The Great Refactoring was for naught
- DataMapper Presented at MWRC 2008
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Presentation on DataMapper by Wycats
- Spotlight on... Laziness
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The Fastest Code Is No Code
- Spotlight on... Composite Keys
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When a Primary Key Just Isn't Enough
- The Great Refactoring
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Change is afoot