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Size: 1.13 KB
Versions: 25
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Stored size: 1.13 KB
Contents
# frozen_string_literal: true
module Hyrax
module Actors
# Validates that the submitted version is the most recent version in the datastore.
# Caveat: we are not detecting if the version is changed by a different process between
# the time this validator is run and when the object is saved
class OptimisticLockValidator < Actors::AbstractActor
class_attribute :version_field
self.version_field = 'version'
# @param [Hyrax::Actors::Environment] env
# @return [Boolean] true if update was successful
def update(env)
validate_lock(env, version_attribute(env.attributes)) && next_actor.update(env)
end
private
# @return [Boolean] returns true if the lock is missing or
# if it matches the current object version.
def validate_lock(env, version)
return true if version.blank? || version == env.curation_concern.etag
env.curation_concern.errors.add(:base, :conflict)
false
end
# Removes the version attribute
def version_attribute(attributes)
attributes.delete(version_field)
end
end
end
end
Version data entries
25 entries across 25 versions & 1 rubygems