module ActiveRecord # = Active Record \RecordInvalid # # Raised by {ActiveRecord::Base#save!}[rdoc-ref:Persistence#save!] and # {ActiveRecord::Base#create!}[rdoc-ref:Persistence::ClassMethods#create!] when the record is invalid. # Use the #record method to retrieve the record which did not validate. # # begin # complex_operation_that_internally_calls_save! # rescue ActiveRecord::RecordInvalid => invalid # puts invalid.record.errors # end class RecordInvalid < ActiveRecordError attr_reader :record def initialize(record = nil) if record @record = record errors = @record.errors.full_messages.join(", ") message = I18n.t(:"#{@record.class.i18n_scope}.errors.messages.record_invalid", errors: errors, default: :"errors.messages.record_invalid") else message = "Record invalid" end super(message) end end # = Active Record \Validations # # Active Record includes the majority of its validations from ActiveModel::Validations # all of which accept the :on argument to define the context where the # validations are active. Active Record will always supply either the context of # :create or :update dependent on whether the model is a # {new_record?}[rdoc-ref:Persistence#new_record?]. module Validations extend ActiveSupport::Concern include ActiveModel::Validations # The validation process on save can be skipped by passing validate: false. # The regular {ActiveRecord::Base#save}[rdoc-ref:Persistence#save] method is replaced # with this when the validations module is mixed in, which it is by default. def save(options = {}) perform_validations(options) ? super : false end # Attempts to save the record just like {ActiveRecord::Base#save}[rdoc-ref:Base#save] but # will raise an ActiveRecord::RecordInvalid exception instead of returning +false+ if the record is not valid. def save!(options = {}) perform_validations(options) ? super : raise_validation_error end # Runs all the validations within the specified context. Returns +true+ if # no errors are found, +false+ otherwise. # # Aliased as #validate. # # If the argument is +false+ (default is +nil+), the context is set to :create if # {new_record?}[rdoc-ref:Persistence#new_record?] is +true+, and to :update if it is not. # # \Validations with no :on option will run no matter the context. \Validations with # some :on option will only run in the specified context. def valid?(context = nil) context ||= default_validation_context output = super(context) errors.empty? && output end alias_method :validate, :valid? private def default_validation_context new_record? ? :create : :update end def raise_validation_error raise(RecordInvalid.new(self)) end def perform_validations(options = {}) options[:validate] == false || valid?(options[:context]) end end end require_relative "validations/associated" require_relative "validations/uniqueness" require_relative "validations/presence" require_relative "validations/absence" require_relative "validations/length"