activerecord Examples and Free Source Code

Trying to add multiple entry to a particar database active records on rails with a single post reque...

arrays ruby-on-rails activerecord activemodel

Rails : Get multiple column values for single record...

ruby-on-rails ruby-on-rails-4 activerecord

Rails nested attributes: require at least two records...

ruby-on-rails validation activerecord associations

Rails: has_many through not returning results...

ruby-on-rails ruby activerecord ruby-on-rails-5

(Rails 6 specific) How to validate a date for future events only?...

ruby-on-rails ruby date activerecord ruby-on-rails-6

Ruby on Rails ActiveRecord. How to prevent taking a collection from the database after the build met...

ruby-on-rails activerecord collections build rails-activerecord

GROUP BY and COUNT using ActiveRecord...

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Foreign key nil when creating multiple nested associations in Rails...

ruby-on-rails ruby activerecord

Fake an active record model without db...

ruby testing activerecord rubygems

Create a table structure for related records that supports easy use in controller actions...

ruby-on-rails ruby activerecord database-design associations

Check whether array in JSONB column includes any of the values in another array...

ruby-on-rails postgresql activerecord

Grouping by week/month/etc & ActiveRecord?...

ruby-on-rails activerecord grouping

How to clean modified associations on an active record transaction rollback?...

ruby-on-rails activerecord transactions

Rails: what does schema.rb do?...

ruby-on-rails activerecord

upgrading rails issue (Could not find gem 'rails (~> 5.2.8, >= 5.2.8.15)' in rubygems ...

ruby-on-rails activerecord

uninitialized constant ActiveRecord...

ruby-on-rails ruby activerecord

implementing find_or_create_by when find involves single attribute but create involves multiple attr...

ruby-on-rails activerecord

find_by_sql to something that returns an activeRecords relation...

ruby-on-rails activerecord

ActiveRecord\MysqliAdapter not found...

php mysql codeigniter activerecord phpactiverecord

Rails 5 db migration: how to fix ActiveRecord::ConcurrentMigrationError...

ruby postgresql activerecord ruby-on-rails-5

Best practice for similar repeated queries using ActiveRecord...

ruby-on-rails ruby activerecord

Grouping WHERE clauses in Codeigniter...

php mysql codeigniter activerecord

Why i am getting this error in Factory: must be exist card? how can i solved it?...

ruby-on-rails activerecord factory-bot

Ruby on Rails - Get all associated records of a table...

ruby-on-rails ruby postgresql activerecord

Active Record Could not find table...

ruby activerecord

Eager loading with relations causes touch option not to work...

ruby-on-rails activerecord

ActiveRecord, has_many :through, and Polymorphic Associations...

ruby-on-rails activerecord polymorphic-associations

Why can rails create record by passing realted record, but not related record's id?...

ruby-on-rails validation activerecord

How to use a checkbox to modify a value from each object of a model using a nested form...

ruby ruby-on-rails-4 activerecord erb nested-forms

how to check if has_one exists without loading associated model...

ruby-on-rails activerecord ruby-on-rails-6