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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 <tt>:on</tt> argument to define the context where the
# validations are active. Active Record will always supply either the context of
# <tt>:create</tt> or <tt>:update</tt> 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 <tt>validate: false</tt>.
# 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 <tt>:create</tt> if
# {new_record?}[rdoc-ref:Persistence#new_record?] is +true+, and to <tt>:update</tt> if it is not.
#
# \Validations with no <tt>:on</tt> option will run no matter the context. \Validations with
# some <tt>:on</tt> 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?
protected
def default_validation_context
new_record? ? :create : :update
end
def raise_validation_error
raise(RecordInvalid.new(self))
end
def perform_validations(options = {}) # :nodoc:
options[:validate] == false || valid?(options[:context])
end
end
end
require "active_record/validations/associated"
require "active_record/validations/uniqueness"
require "active_record/validations/presence"
require "active_record/validations/absence"
require "active_record/validations/length"
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