activerecord Examples and Free Source Code

Sortable UUIDs and overriding ActiveRecord::Base...

ruby-on-rails postgresql ruby-on-rails-4 activerecord uuid

Why isn't order() taking effect on papertrail version associations?...

ruby-on-rails postgresql activerecord paper-trail-gem

Joining two models with many-to-many relationship in Rails...

ruby-on-rails ruby activerecord many-to-many object-relational-model

$this->db->last_query() returns NULL in Codeigniter 4. How to get query SQL?...

php codeigniter activerecord codeigniter-4

Get only records created today in laravel...

mysql date activerecord where-clause laravel-5.1

CodeIgniter4: How to get executed MySQL queries between sending an HTTP request and receiving an HTT...

php codeigniter activerecord codeigniter-4

how to get last query in codeigniter 4?...

php codeigniter activerecord query-builder codeigniter-4

Model Validation in Rails to test if a number can be nil or some positive integer...

ruby-on-rails validation activerecord

My Ruby on Rails active record validation error does not persist when I re-render the same view...

ruby-on-rails activerecord error-handling carrierwave

Find all records which have a count of an association greater than zero...

sql ruby-on-rails ruby-on-rails-3 activerecord

Return element of jsonb field with activerecord select...

ruby-on-rails activerecord jsonb

How to fetch fetch one column lazily with a jOOQ active record...

java postgresql activerecord lazy-loading jooq

Validate uniqueness of a field within a belongs_to, has_many relationship...

ruby-on-rails ruby-on-rails-3 activerecord

How can I avoid unnecessary loading of Associated model while creating it?...

ruby-on-rails ruby activerecord associations

How can I dump an ActiveModel record as an INSERT SQL statement?...

ruby-on-rails activerecord ruby-on-rails-7 arel

Rails attr_readonly doesn't work...

ruby-on-rails activerecord

Multiple joins with count and having with ActiveRecord...

ruby-on-rails activerecord rails-activerecord

Rails Query group and pluck to Return Array of IDs grouped by another attribute?...

ruby-on-rails activerecord

batch destroy all in rails active record...

ruby-on-rails activerecord

Rails 5: Add belongs_to association with custom name to model, and migration...

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How to localize validation error messages for deeply nested attributes in Ruby on Rails?...

ruby-on-rails ruby validation activerecord

Rails API: Cannot whitelist JSON field attribute...

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

rails each_with_index cache...

ruby-on-rails caching activerecord actionview

best database strategy for a client-based website (Ruby on Rails)...

ruby-on-rails ruby database activerecord

Efficient way to find a record based on many columns...

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

Rails ActiveRecord::LogSubscriber not outputting verbose query logs...

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

Does Ruby on Rails have a way to import an existing database schema?...

ruby-on-rails ruby database activerecord

Database configuration does not specify adapter (Sinatra + Heroku + Activerecord)...

activerecord heroku sinatra

Passing parameters to raw SQL queries inside ruby on rails...

sql ruby-on-rails ruby postgresql activerecord

Is it possible to inner join across multiple databases in Rails?...

ruby-on-rails postgresql join activerecord