Chris@0: # redMine - project management software
Chris@0: # Copyright (C) 2006  Jean-Philippe Lang
Chris@0: #
Chris@0: # This program is free software; you can redistribute it and/or
Chris@0: # modify it under the terms of the GNU General Public License
Chris@0: # as published by the Free Software Foundation; either version 2
Chris@0: # of the License, or (at your option) any later version.
Chris@0: # 
Chris@0: # This program is distributed in the hope that it will be useful,
Chris@0: # but WITHOUT ANY WARRANTY; without even the implied warranty of
Chris@0: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
Chris@0: # GNU General Public License for more details.
Chris@0: # 
Chris@0: # You should have received a copy of the GNU General Public License
Chris@0: # along with this program; if not, write to the Free Software
Chris@0: # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
Chris@0: 
Chris@0: class CustomValue < ActiveRecord::Base
Chris@0:   belongs_to :custom_field
Chris@0:   belongs_to :customized, :polymorphic => true
Chris@0: 
Chris@0:   def after_initialize
Chris@0:     if new_record? && custom_field && (customized_type.blank? || (customized && customized.new_record?))
Chris@0:       self.value ||= custom_field.default_value
Chris@0:     end
Chris@0:   end
Chris@0:   
Chris@0:   # Returns true if the boolean custom value is true
Chris@0:   def true?
Chris@0:     self.value == '1'
Chris@0:   end
Chris@0:   
Chris@0:   def editable?
Chris@0:     custom_field.editable?
Chris@0:   end
Chris@0:   
chris@37:   def visible?
chris@37:     custom_field.visible?
chris@37:   end
chris@37:   
Chris@0:   def required?
Chris@0:     custom_field.is_required?
Chris@0:   end
Chris@0:   
Chris@0:   def to_s
Chris@0:     value.to_s
Chris@0:   end
Chris@0:   
Chris@0: protected
Chris@0:   def validate
Chris@0:     if value.blank?
Chris@0:       errors.add(:value, :blank) if custom_field.is_required? and value.blank?    
Chris@0:     else
Chris@0:       errors.add(:value, :invalid) unless custom_field.regexp.blank? or value =~ Regexp.new(custom_field.regexp)
Chris@0:       errors.add(:value, :too_short, :count => custom_field.min_length) if custom_field.min_length > 0 and value.length < custom_field.min_length
Chris@0:       errors.add(:value, :too_long, :count => custom_field.max_length) if custom_field.max_length > 0 and value.length > custom_field.max_length
Chris@0:     
Chris@0:       # Format specific validations
Chris@0:       case custom_field.field_format
Chris@0:       when 'int'
Chris@0:         errors.add(:value, :not_a_number) unless value =~ /^[+-]?\d+$/	
Chris@0:       when 'float'
Chris@0:         begin; Kernel.Float(value); rescue; errors.add(:value, :invalid) end
Chris@0:       when 'date'
Chris@0:         errors.add(:value, :not_a_date) unless value =~ /^\d{4}-\d{2}-\d{2}$/
Chris@0:       when 'list'
Chris@0:         errors.add(:value, :inclusion) unless custom_field.possible_values.include?(value)
Chris@0:       end
Chris@0:     end
Chris@0:   end
Chris@0: end