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by NARKOZ 4006 days ago
Author could use counter cache to solve the problem.
1 comments
schneidmaster 4003 days ago
Author here. That would work for a count (so perhaps that was a poor example to choose for this post) but we also use calculated_attributes for many more complex cases (for example, querying the earliest date in 3 columns across 3 tables).
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NARKOZ 3998 days ago
There is a gem called eager_group that you might find useful.
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