Fat Model anti-pattern creating unmaintainable bloated models
6/10 MediumRails models become bloated with excessive business logic and responsibilities that don't belong there, making them thousands of lines long, difficult to test, and hard to maintain. This stems from the historical practice of moving logic from controllers to models.
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Query: “What are the most common pain points with Ruby on Rails for developers in 2025?”4/9/2026
The 'Fat Model' is probably the most common anti-pattern in the Ruby on Rails world. It's what happens when your Active Record models become bloated with responsibilities that don't belong there, making them hard to test and maintain. Models became huge, thousand-line messes that did way too many jobs.
Created: 4/9/2026Updated: 4/9/2026