comments: add uniqueness constraint on votes.

2021-01-23 14:44:11 -06:00
parent 5061b0a013
commit b689c9cbed
3 changed files with 26 additions and 3 deletions
--- a/db/migrate/20210123112752_add_unique_user_id_index_to_comment_votes.rb
+++ b/db/migrate/20210123112752_add_unique_user_id_index_to_comment_votes.rb
@@ -0,0 +1,5 @@
+class AddUniqueUserIdIndexToCommentVotes < ActiveRecord::Migration[6.1]
+  def change
+    add_index :comment_votes, [:user_id, :comment_id], unique: true
+  end
+end