DRY CRUD Rails Generator Released

Von Pascal Zumkehr, publiziert am 06. September 2010
Tags: DRY, Open Source, Rails, Ruby

Just ready for the great new Rails 3, this open source generator for DRY and specifically extendable CRUD components removes even more duplication from your Ruby on Rails applications.

We Open the Source

After several years of Ruby on Rails development, it’s time to give something back to the community. dry_crud has its origins in a couple of projects developed here at Puzzle ITC and was now extracted and refined as a re-usable, open source component. Version 1.0.0 is fully compatible with the shiny new Rails 3.


dry_crud is a Rails generator. It generates a specifically extendable controller, views and helpers for the CRUD (create, read, update and delete) functionality of your application. Since the look and feel of these parts should be consistent throughout the entire application, you want to define it once and use it everywhere. In other words, you want to keep it all DRY (Don’t repeat yourself). Because dry_crud is a generator, you get a good foundation to start with but you are free (if not encouraged!) to modify everything to exactly fit your needs.

Don’t we already have that?

There is Rails scaffolding, Active Scaffold or Dry Scaffold. While the first one generates the same (and not really production ready) code over and over again, the latter already reduce duplication to a fair amount. Still, own views have to be reproduced for each model. This creates quite a bit of maintenance effort if you want to include a new feature, like, e.g., pagination. Based on the render_inheritable extension (released as a stand-alone Rails plugin as well), views may be ‘inherited’ to subclasses of a given controller. Therefore, the views may just be defined once and be reused for every model that requires CRUD. Thanks to the helpers included in dry_crud, the displayed forms and tables will automatically adapt to the actual model attributes. If these default views do not meet all requirements, it is possible to customize specific parts for arbitrary models. Of course, the same is true for the generated CRUD controller.


Please find more details, documentation, examples and the source code at the GitHub page of the project. The latest version is built for Rails 3. If you would like to use dry_crud with Rails 2.3, please install version 0.6.0.

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