ActiveRecord::Associations::ClassMethods
Ruby on Rails 8.0.0 Module ActiveRecord::Associations::ClassMethods activerecord/lib/active_record/associations.rb Active Record Associations Associations are a set of macro-like class methods for tying objects together through foreign keys. They express relationships like “Project has one Project Manager†or “Project belongs to a Portfolioâ€. Each macro adds a number of methods to the class which
ActiveRecord::Validations::ClassMethods
# File activerecord/lib/active_record/validations/absence.rb, line 20 def validates_absence_of(*attr_names) validates_with AbsenceValidator, _merge_attributes(attr_names) end Validates whether the associated object or objects are all valid. Works with any kind of association. class Book < ActiveRecord::Base has_many :pages belongs_to :library validates_associated :pages, :library end WARNING: This
ActiveRecord::ConnectionAdapters::ConnectionPool
Ruby on Rails 8.0.1 Class ActiveRecord::ConnectionAdapters::ConnectionPool < Object activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb activerecord/lib/active_record/connection_adapters/abstract/connection_pool/queue.rb activerecord/lib/active_record/connection_adapters/abstract/connection_pool/reaper.rb activerecord/lib/active_record/connection_adapters/abstract/query_
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