Chris@0: # Redmine - project management software
Chris@0: # Copyright (C) 2006-2009  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: module Redmine
Chris@0:   class CustomFieldFormat
Chris@0:     include Redmine::I18n
Chris@0: 
Chris@0:     cattr_accessor :available
Chris@0:     @@available = {}
Chris@0: 
Chris@441:     attr_accessor :name, :order, :label, :edit_as, :class_names
Chris@0: 
Chris@0:     def initialize(name, options={})
Chris@0:       self.name = name
Chris@0:       self.label = options[:label]
Chris@0:       self.order = options[:order]
Chris@441:       self.edit_as = options[:edit_as] || name
Chris@441:       self.class_names = options[:only]
Chris@0:     end
Chris@0: 
Chris@0:     def format(value)
Chris@0:       send "format_as_#{name}", value
Chris@0:     end
Chris@0: 
Chris@0:     def format_as_date(value)
Chris@0:       begin; format_date(value.to_date); rescue; value end
Chris@0:     end
Chris@0: 
Chris@0:     def format_as_bool(value)
Chris@0:       l(value == "1" ? :general_text_Yes : :general_text_No)
Chris@0:     end
Chris@0: 
Chris@0:     ['string','text','int','float','list'].each do |name|
Chris@0:       define_method("format_as_#{name}") {|value|
Chris@0:         return value
Chris@0:       }
Chris@0:     end
Chris@441:     
Chris@441:     ['user', 'version'].each do |name|
Chris@441:       define_method("format_as_#{name}") {|value|
Chris@441:         return value.blank? ? "" : name.classify.constantize.find_by_id(value.to_i).to_s
Chris@441:       }
Chris@0:     end
Chris@0: 
Chris@0:     class << self
Chris@0:       def map(&block)
Chris@0:         yield self
Chris@0:       end
Chris@0:       
Chris@0:       # Registers a custom field format
Chris@0:       def register(custom_field_format, options={})
Chris@0:         @@available[custom_field_format.name] = custom_field_format unless @@available.keys.include?(custom_field_format.name)
Chris@0:       end
Chris@0: 
Chris@0:       def available_formats
Chris@0:         @@available.keys
Chris@0:       end
Chris@0: 
Chris@0:       def find_by_name(name)
Chris@0:         @@available[name.to_s]
Chris@0:       end
Chris@0: 
Chris@0:       def label_for(name)
Chris@0:         format = @@available[name.to_s]
Chris@0:         format.label if format
Chris@0:       end
Chris@0: 
Chris@0:       # Return an array of custom field formats which can be used in select_tag
Chris@441:       def as_select(class_name=nil)
Chris@441:         fields = @@available.values
Chris@441:         fields = fields.select {|field| field.class_names.nil? || field.class_names.include?(class_name)}
Chris@441:         fields.sort {|a,b|
Chris@0:           a.order <=> b.order
Chris@0:         }.collect {|custom_field_format|
Chris@0:           [ l(custom_field_format.label), custom_field_format.name ]
Chris@0:         }
Chris@0:       end
Chris@0: 
Chris@0:       def format_value(value, field_format)
Chris@0:         return "" unless value && !value.empty?
Chris@0: 
Chris@0:         if format_type = find_by_name(field_format)
Chris@0:           format_type.format(value)
Chris@0:         else
Chris@0:           value
Chris@0:         end
Chris@0:       end
Chris@0:     end
Chris@0:   end 
Chris@0: end