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Gist 8717191

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Aallyraza
Last edited Jan 30, 2014
Created on Jan 30, 2014

This example demonstrates a Rails server log and controller code handling a collection creation request. It shows a POST request to `/collections` that fails to save image URLs because the `images` parameter is not permitted, despite being listed in `collection_params`. The log reveals an ActiveRecord transaction that inserts only the collection name, followed by a redirect. The code uses the Rails `params.require` and `permit` API, while the model declares `attr_accessor :images`, indicating the parameter is accepted but not persisted. The visualization highlights the gap between the intended input and the actual database operation.

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