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module Shamu
module Services
# Helper methods useful for services that interact with {ActiveRecord::Base}
# models.
module ActiveRecord
private
# @!visibility public
#
# Watch for ActiveRecord::RecordNotFound errors and rethrow as a
# {Shamu::NotFoundError}.
def wrap_not_found( &block )
yield
rescue ::ActiveRecord::RecordNotFound
raise Shamu::NotFoundError
end
# @!visibility public
#
# Wrap all the changes to any ActiveRecord resource in a transaction.
# @param [Hash] options to pass to
# ActiveRecord::Transactions.transaction.
# @yieldreturn [Result] the validation sources for the transaction. See
# {Service#with_result}.
# @return [Result]
def with_transaction( options = {}, &block )
result = nil
::ActiveRecord::Base.transaction options do
result = yield
raise ::ActiveRecord::Rollback if result && !result.valid?
end
result
end
# @!visibility public
#
# Apply the filters specified in `list_scope` to the `relation`.
#
# @param [ActiveRecord::Relation] relation to filter.
# @param [Entities::ListScope] list_scope to apply.
# @return [ActiveRecord::Relation] the scoped relation.
def scope_relation( relation, list_scope )
return unless relation
if relation.respond_to?( :by_list_scope )
relation.by_list_scope( list_scope )
else
fail "Can't scope a #{ relation.klass }. Add `scope :by_list_scope, ->(list_scope) { ... }` or include Shamu::Entities::ActiveRecord." # rubocop:disable Metrics/LineLength
end
end
end
end
end
Version data entries
7 entries across 7 versions & 1 rubygems