Adds support for multiselect custom fields (#1189).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@8721 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/query.rb

@@ -57,7 +57,7 @@ class QueryCustomFieldColumn < QueryColumn
   def initialize(custom_field)
     self.name = "cf_#{custom_field.id}".to_sym
     self.sortable = custom_field.order_statement || false
-    if %w(list date bool int).include?(custom_field.field_format)
+    if %w(list date bool int).include?(custom_field.field_format) && !custom_field.multiple?
       self.groupable = custom_field.order_statement
     end
     self.groupable ||= false
@@ -73,8 +73,8 @@ class QueryCustomFieldColumn < QueryColumn
   end
 
   def value(issue)
-    cv = issue.custom_values.detect {|v| v.custom_field_id == @cf.id}
-    cv && @cf.cast_value(cv.value)
+    cv = issue.custom_values.select {|v| v.custom_field_id == @cf.id}.collect {|v| @cf.cast_value(v.value)}
+    cv.size > 1 ? cv : cv.first
   end
 
   def css_classes
@@ -694,7 +694,13 @@ class Query < ActiveRecord::Base
         value.push User.current.id.to_s
       end
     end
-    "#{Issue.table_name}.id IN (SELECT #{Issue.table_name}.id FROM #{Issue.table_name} LEFT OUTER JOIN #{db_table} ON #{db_table}.customized_type='Issue' AND #{db_table}.customized_id=#{Issue.table_name}.id AND #{db_table}.custom_field_id=#{custom_field_id} WHERE " +
+    not_in = nil
+    if operator == '!'
+      # Makes ! operator work for custom fields with multiple values
+      operator = '='
+      not_in = 'NOT'
+    end
+    "#{Issue.table_name}.id #{not_in} IN (SELECT #{Issue.table_name}.id FROM #{Issue.table_name} LEFT OUTER JOIN #{db_table} ON #{db_table}.customized_type='Issue' AND #{db_table}.customized_id=#{Issue.table_name}.id AND #{db_table}.custom_field_id=#{custom_field_id} WHERE " +
       sql_for_field(field, operator, value, db_table, db_field, true) + ')'
   end