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We sometimes say "✂️ newline after `private`" in a code review (e.g. https://github.com/rails/rails/pull/18546#discussion_r23188776, https://github.com/rails/rails/pull/34832#discussion_r244847195). Now `Layout/EmptyLinesAroundAccessModifier` cop have new enforced style `EnforcedStyle: only_before` (https://github.com/rubocop-hq/rubocop/pull/7059). That cop and enforced style will reduce the our code review cost.
92 lines
3.3 KiB
Ruby
92 lines
3.3 KiB
Ruby
# frozen_string_literal: true
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module ActiveRecord
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# = Active Record \RecordInvalid
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#
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# Raised by {ActiveRecord::Base#save!}[rdoc-ref:Persistence#save!] and
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# {ActiveRecord::Base#create!}[rdoc-ref:Persistence::ClassMethods#create!] when the record is invalid.
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# Use the #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 = nil)
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if record
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@record = record
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errors = @record.errors.full_messages.join(", ")
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message = I18n.t(:"#{@record.class.i18n_scope}.errors.messages.record_invalid", errors: errors, default: :"errors.messages.record_invalid")
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else
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message = "Record invalid"
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end
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super(message)
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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 ActiveModel::Validations
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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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# {new_record?}[rdoc-ref:Persistence#new_record?].
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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 {ActiveRecord::Base#save}[rdoc-ref:Persistence#save] method is replaced
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# with this when the validations 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 {ActiveRecord::Base#save}[rdoc-ref:Base#save] but
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# will raise an ActiveRecord::RecordInvalid 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_validation_error
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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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# {new_record?}[rdoc-ref:Persistence#new_record?] 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 ||= default_validation_context
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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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private
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def default_validation_context
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new_record? ? :create : :update
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end
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def raise_validation_error
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raise(RecordInvalid.new(self))
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end
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def perform_validations(options = {})
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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/absence"
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require "active_record/validations/length"
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