Cast value to string in validates_uniqueness_of if the column is of text type

This fixes an error for postgresql where "text_column = 100" fails in version 8.3

Signed-off-by: Michael Koziarski <michael@koziarski.com>

1 files changed, 7 insertions, 1 deletions

diff --git a/activerecord/lib/active_record/validations.rb b/activerecord/lib/active_record/validations.rb
index b957ee3b9e..52f674847e 100755
--- a/activerecord/lib/active_record/validations.rb
+++ b/activerecord/lib/active_record/validations.rb
@@ -625,7 +625,13 @@ module ActiveRecord
           # class (which has a database table to query from).
           finder_class = class_hierarchy.detect { |klass| !klass.abstract_class? }
 
-          if value.nil? || (configuration[:case_sensitive] || !finder_class.columns_hash[attr_name.to_s].text?)
+          is_text_column = finder_class.columns_hash[attr_name.to_s].text?
+
+          if !value.nil? && is_text_column
+            value = value.to_s
+          end
+
+          if value.nil? || (configuration[:case_sensitive] || !is_text_column)
             condition_sql = "#{record.class.quoted_table_name}.#{attr_name} #{attribute_condition(value)}"
             condition_params = [value]
           else