module ActiveRecord::Persistence::ClassMethods
Public Instance Methods
delta_attributes(*args)
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# File lib/delta_attributes3_2/main.rb, line 49 def delta_attributes(*args) @_delta_attributes ||= Set.new return @_delta_attributes if args.empty? args.each do |attribute| if self.columns_hash[attribute.to_s].blank? logger.warn("#{self.to_s} model doesn't have attribute with name '#{attribute}' or you have pending migrations.") next end if self.columns_hash[attribute.to_s] && !self.columns_hash[attribute.to_s].number? raise InvalidDeltaColumn.new("Delta attributes only work with number attributes, column `#{attribute}` is not a number.") end @_delta_attributes.add(attribute) end end