diff options
Diffstat (limited to 'db/migrate/20150425164647_remove_duplicate_tags.rb')
| -rw-r--r-- | db/migrate/20150425164647_remove_duplicate_tags.rb | 18 |
1 files changed, 0 insertions, 18 deletions
diff --git a/db/migrate/20150425164647_remove_duplicate_tags.rb b/db/migrate/20150425164647_remove_duplicate_tags.rb deleted file mode 100644 index 5165eb65695..00000000000 --- a/db/migrate/20150425164647_remove_duplicate_tags.rb +++ /dev/null @@ -1,18 +0,0 @@ -# rubocop:disable all -class RemoveDuplicateTags < ActiveRecord::Migration[4.2] - def up - select_all("SELECT name, COUNT(id) as cnt FROM tags GROUP BY name HAVING COUNT(id) > 1").each do |tag| - tag_name = quote_string(tag["name"]) - duplicate_ids = select_all("SELECT id FROM tags WHERE name = '#{tag_name}'").map{|tag| tag["id"]} - origin_tag_id = duplicate_ids.first - duplicate_ids.delete origin_tag_id - - execute("UPDATE taggings SET tag_id = #{origin_tag_id} WHERE tag_id IN(#{duplicate_ids.join(",")})") - execute("DELETE FROM tags WHERE id IN(#{duplicate_ids.join(",")})") - end - end - - def down - - end -end |