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Contents
# frozen_string_literal: true
module ActiveRecord #:nodoc:
module ConnectionAdapters #:nodoc:
module OracleEnhanced #:nodoc:
module Lob #:nodoc:
extend ActiveSupport::Concern
included do
class_attribute :custom_create_method, :custom_update_method, :custom_delete_method
# After setting large objects to empty, select the OCI8::LOB
# and write back the data.
before_update :record_changed_lobs
after_update :enhanced_write_lobs
end
module ClassMethods
def lob_columns
columns.select do |column|
column.sql_type_metadata.sql_type =~ /LOB$/
end
end
end
private
def enhanced_write_lobs
if self.class.connection.is_a?(ConnectionAdapters::OracleEnhancedAdapter) &&
!(self.class.custom_create_method || self.class.custom_update_method)
self.class.connection.write_lobs(self.class.table_name, self.class, attributes, @changed_lob_columns)
end
end
def record_changed_lobs
@changed_lob_columns = self.class.lob_columns.select do |col|
self.will_save_change_to_attribute?(col.name) && !self.class.readonly_attributes.to_a.include?(col.name)
end
end
end
end
end
end
ActiveSupport.on_load(:active_record) do
ActiveRecord::Base.send(:include, ActiveRecord::ConnectionAdapters::OracleEnhanced::Lob)
end
Version data entries
20 entries across 20 versions & 1 rubygems