Use a textarea for custom fields possible values (#2472).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@2267 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/custom_field.rb

@@ -41,8 +41,6 @@ class CustomField < ActiveRecord::Base
   end
   
   def before_validation
-    # remove empty values
-    self.possible_values = self.possible_values.collect{|v| v unless v.empty?}.compact
     # make sure these fields are not searchable
     self.searchable = false if %w(int float date bool).include?(field_format)
     true
@@ -60,6 +58,15 @@ class CustomField < ActiveRecord::Base
     errors.add(:default_value, :activerecord_error_invalid) unless v.valid?
   end
   
+  # Makes possible_values accept a multiline string
+  def possible_values=(arg)
+    if arg.is_a?(Array)
+      write_attribute(:possible_values, arg.compact.collect(&:strip).select {|v| !v.blank?})
+    else
+      self.possible_values = arg.to_s.split(/[\n\r]+/)
+    end
+  end
+  
   # Returns a ORDER BY clause that can used to sort customized
   # objects by their value of the custom field.
   # Returns false, if the custom field can not be used for sorting.