@@ -2,13 +2,13 @@ module HasDetails def self.included(base) base.extend(ClassMethods) end - - # HasDetails allows you to store a large amount of (optional) attributes for any model's instance in a - # serialized column. It takes care of adding convenience methods to your model, and verifies that the + + # HasDetails allows you to store a large amount of (optional) attributes for any model's instance in a + # serialized column. It takes care of adding convenience methods to your model, and verifies that the # value being assigned is indeed (one of) the type(s) required for that attribute. - # + # # Example: - # + # # class User << ActiveRecord::Base # has_details :column => :extended_attributes, # :firstname => String, @@ -16,49 +16,50 @@ module HasDetails # :birthday => Date, # :gender => [:male, :female] # end - # + # # john = User.find(1) # john.birthday = 5.years.ago # john.gender # => :male module ClassMethods - + # Configuration options are: # # * +column+ - Specifies the column name to use for storing the serialized attributes. This column will automatically be set to serialize in Rails. The default value is :details. - # + # # The rest of the configuration options is the set of attributes that will be saved in the +column+. Valid formats are: # * +:field => ClassName+ (values assigned to +field+ must be of class +ClassName+) # * +:field => [:symbol, :othersymbol]+ (values assigned to +field+ must be included in the array given) def has_details(options = {}) configuration = { :column => :details} configuration.update(options) if options.is_a?(Hash) - + column = configuration[:column] + raise(ArgumentError, "You must be supply at least one field in the configuration hash") unless configuration.keys.size > 0 -# raise(Exception, "A #{configuration[:column]} column must be present in the database for this plugin.") unless columns.include?(:details) - - serialize configuration[:column], Hash - + raise(Exception, "A #{column.inspect} column must be present in the database for this plugin.") unless column_names.include?(column.to_s) + + serialize column, Hash + configuration.each do |f,t| + unless f == :column + exception_code = t.is_a?(Array) ? "raise \"Assigned value must be one of #{t.inspect}\" unless #{t.inspect}.include?(val)" : \ + "raise \"Assigned value must be a #{t.inspect}\" unless val.is_a?(#{t.inspect})" + + class_eval <<-EOV + def #{f} + self.#{column.to_s} ||= {} + self.#{column.to_s}[:#{f}] + end - exception_code = t.is_a?(Array) ? "raise \"Assigned value must be one of #{t.inspect}\" unless #{t.inspect}.include?(val)" : \ - "raise \"Assigned value must be a #{t.inspect}\" unless val.is_a?(#{t.inspect})" - - class_eval <<-EOV - def #{f} - self.details ||= {} - self.details[:#{f}] - end - - def #{f}=(val) - #{exception_code} + def #{f}=(val) + #{exception_code} - self.details ||= {} - self.details[:#{f}] = val - end - EOV + self.#{column.to_s} ||= {} + self.#{column.to_s}[:#{f}] = val + end + EOV + end end - end end lib/has_details.rb 4922107a7980d0bbcbc94412a9e2cc13c5c7764a Samuel Esposito samuel.esposito@gmail.com http://github.com/marten/has_details/commit/33d423a5867793fea90a68766133f5edb233deae 33d423a5867793fea90a68766133f5edb233deae 2008-11-24T02:48:12-08:00 2008-11-24T02:48:12-08:00 Use column name option e5d9ac3ab59d81f2421874c2b3b77c68ce1267fd Samuel Esposito samuel.esposito@gmail.com