rails-activerecord tutorials

Rails console returns nil for column that contains a value

Jul 14, 2026

What is the difference with find_by() from the core and the one from the FinderMethods?

Jul 11, 2026

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Want to be able to make multiple row inserts based off two different values

Jul 05, 2026

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Bizarre error in pry when testing associations

Jul 04, 2026

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Dynamic ActiveRecord finder methods chaining based on params

Jun 30, 2026

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ActiveRecord Query Chains

Jul 01, 2026

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Conditionally chaining where clauses in Rails ActiveRecord queries

Jun 30, 2026

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Paranoid an increment! counter may not be working properly

Jun 29, 2026

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Manipulating records returned in an active record scope

Jun 28, 2026

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How to check if a column is present in a table?

Jun 27, 2026

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ActiveRecord: How to include another model based on Enum?

Jun 22, 2026

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How do I create a self-referential association table rails migration

Jun 20, 2026

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Get average of attribute through 'has_many'

Jun 16, 2026

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Performing a function to check for duplicates before saving the record in the model in Rails

Jun 18, 2026

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How to use a group by clause on an ActiveRecord query using a Hstore key? [closed]

Jun 17, 2026

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How do I check if an association exists in ActiveRecord from inside a model?

Jun 15, 2026

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How can I get Rails 5 to play nicely with a primary key that has a period in it?

Jun 14, 2026

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