Removing foreign_key when removing index

Error explained in issue 978 (mbleigh#978)
ndrix · Jan 20, 2020 · 4945323 · 4945323
1 parent 6055f96
commit 4945323
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/db/migrate/2_add_missing_unique_indices.rb b/db/migrate/2_add_missing_unique_indices.rb
@@ -7,7 +7,10 @@ class AddMissingUniqueIndices < ActiveRecord::Migration; end
   def self.up
     add_index ActsAsTaggableOn.tags_table, :name, unique: true
 
-    remove_index ActsAsTaggableOn.taggings_table, :tag_id if index_exists?(ActsAsTaggableOn.taggings_table, :tag_id)
+    if index_exists?(ActsAsTaggableOn.taggings_table, :tag_id)
+      remove_foreign_key :taggings, :tags
+      remove_index ActsAsTaggableOn.taggings_table, :tag_id
+    end
     remove_index ActsAsTaggableOn.taggings_table, name: 'taggings_taggable_context_idx'
     add_index ActsAsTaggableOn.taggings_table,
               [:tag_id, :taggable_id, :taggable_type, :context, :tagger_id, :tagger_type],