mirror of
https://github.com/discourse/discourse.git
synced 2024-11-24 11:33:06 +08:00
30990006a9
This reduces chances of errors where consumers of strings mutate inputs and reduces memory usage of the app. Test suite passes now, but there may be some stuff left, so we will run a few sites on a branch prior to merging
27 lines
611 B
Ruby
27 lines
611 B
Ruby
# frozen_string_literal: true
|
|
|
|
class AddPostImageIndexes < ActiveRecord::Migration[5.2]
|
|
def change
|
|
|
|
%w{
|
|
large_images
|
|
broken_images
|
|
downloaded_images
|
|
}.each do |field|
|
|
|
|
execute <<~SQL
|
|
DELETE FROM post_custom_fields f
|
|
WHERE name = '#{field}' AND id > (
|
|
SELECT MIN(f2.id) FROM post_custom_fields f2
|
|
WHERE f2.post_id = f.post_id AND f2.name = f.name
|
|
)
|
|
SQL
|
|
|
|
add_index :post_custom_fields, [:post_id],
|
|
name: "post_custom_field_#{field}_idx",
|
|
unique: true,
|
|
where: "name = '#{field}'"
|
|
end
|
|
end
|
|
end
|