# File lib/active_record/connection_adapters/mysql2_adapter.rb, line 25 def extract_default(default) if sql_type =~ %rblob/ || type == :text if default.blank? return null ? nil : '' else raise ArgumentError, "#{type} columns cannot have a default value: #{default.inspect}" end elsif missing_default_forged_as_empty_string?(default) nil else super end end
# File lib/active_record/connection_adapters/mysql2_adapter.rb, line 39 def has_default? return false if sql_type =~ %rblob/ || type == :text # mysql forbids defaults on blob and text columns super end