diff --git a/src/noosfero-spb/gov_user/db/migrate/20151105174601_create_institutions_organization_ratings_table.rb b/src/noosfero-spb/gov_user/db/migrate/20151105174601_create_institutions_organization_ratings_table.rb
new file mode 100644
index 0000000..6fc8a96
--- /dev/null
+++ b/src/noosfero-spb/gov_user/db/migrate/20151105174601_create_institutions_organization_ratings_table.rb
@@ -0,0 +1,12 @@
+class CreateInstitutionsOrganizationRatingsTable < ActiveRecord::Migration
+  def up
+    create_table :gov_user_plugin_institutions_organization_ratings, {:id => false, :force => true} do |t|
+      t.references :institution
+      t.references :organization_rating
+    end
+  end
+
+  def down
+    drop_table :gov_user_plugin_institutions_organization_ratings
+  end
+end
diff --git a/src/noosfero-spb/gov_user/db/migrate/20151105175611_move_institutions_relation_with_organization_ratings.rb b/src/noosfero-spb/gov_user/db/migrate/20151105175611_move_institutions_relation_with_organization_ratings.rb
new file mode 100644
index 0000000..cab4136
--- /dev/null
+++ b/src/noosfero-spb/gov_user/db/migrate/20151105175611_move_institutions_relation_with_organization_ratings.rb
@@ -0,0 +1,9 @@
+class MoveInstitutionsRelationWithOrganizationRatings < ActiveRecord::Migration
+  def up
+    execute('INSERT INTO gov_user_plugin_institutions_organization_ratings (institution_id,organization_rating_id) SELECT institution_id, id from organization_ratings where institution_id IS NOT NULL;')
+  end
+
+  def down
+    execute('DELETE FROM gov_user_plugin_institutions_organization_ratings;')
+  end
+end
diff --git a/src/noosfero-spb/gov_user/db/migrate/20151105175646_remove_old_institution_relation_from_organization_ratings.rb b/src/noosfero-spb/gov_user/db/migrate/20151105175646_remove_old_institution_relation_from_organization_ratings.rb
new file mode 100644
index 0000000..88dae34
--- /dev/null
+++ b/src/noosfero-spb/gov_user/db/migrate/20151105175646_remove_old_institution_relation_from_organization_ratings.rb
@@ -0,0 +1,10 @@
+class RemoveOldInstitutionRelationFromOrganizationRatings < ActiveRecord::Migration
+  def up
+    remove_column :organization_ratings, :institution_id
+  end
+
+  def down
+    add_column :organization_ratings, :institution_id, :integer
+    execute('UPDATE organization_ratings AS oratings SET institution_id = (SELECT institution_id FROM gov_user_plugin_institutions_organization_ratings AS g WHERE g.organization_rating_id = oratings.id);')
+  end
+end
--
libgit2 0.21.2