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