71 lines
2.1 KiB
Ruby
71 lines
2.1 KiB
Ruby
# frozen_string_literal: true
|
|
|
|
class DisallowMultiLevelsThemeComponents < ActiveRecord::Migration[5.2]
|
|
def up
|
|
@handled = []
|
|
top_parents = DB.query("
|
|
SELECT parent_theme_id, child_theme_id
|
|
FROM child_themes
|
|
WHERE parent_theme_id NOT IN (SELECT child_theme_id FROM child_themes)
|
|
")
|
|
|
|
top_parents.each do |top_parent|
|
|
migrate_child(top_parent, top_parent)
|
|
end
|
|
|
|
if @handled.size > 0
|
|
execute("
|
|
DELETE FROM child_themes
|
|
WHERE parent_theme_id NOT IN (#{top_parents.map(&:parent_theme_id).join(", ")})
|
|
")
|
|
end
|
|
|
|
execute("
|
|
UPDATE themes
|
|
SET user_selectable = false
|
|
FROM child_themes
|
|
WHERE themes.id = child_themes.child_theme_id
|
|
AND themes.user_selectable = true
|
|
")
|
|
|
|
default = DB.query_single("SELECT value FROM site_settings WHERE name = 'default_theme_id'").first
|
|
if default
|
|
default_child = DB.query("SELECT 1 AS one FROM child_themes WHERE child_theme_id = ?", default.to_i).present?
|
|
execute("DELETE FROM site_settings WHERE name = 'default_theme_id'") if default_child
|
|
end
|
|
end
|
|
|
|
def down
|
|
raise ActiveRecord::IrreversibleMigration
|
|
end
|
|
|
|
private
|
|
|
|
def migrate_child(parent, top_parent)
|
|
unless already_exists?(top_parent.parent_theme_id, parent.child_theme_id)
|
|
execute("
|
|
INSERT INTO child_themes (parent_theme_id, child_theme_id, created_at, updated_at)
|
|
VALUES (#{top_parent.parent_theme_id}, #{parent.child_theme_id}, now(), now())
|
|
")
|
|
end
|
|
|
|
@handled << [top_parent.parent_theme_id, parent.parent_theme_id, parent.child_theme_id]
|
|
|
|
children = DB.query("
|
|
SELECT parent_theme_id, child_theme_id
|
|
FROM child_themes
|
|
WHERE parent_theme_id = :child", child: parent.child_theme_id
|
|
)
|
|
|
|
children.each do |child|
|
|
unless @handled.include?([top_parent.parent_theme_id, child.parent_theme_id, child.child_theme_id])
|
|
migrate_child(child, top_parent)
|
|
end
|
|
end
|
|
end
|
|
|
|
def already_exists?(parent, child)
|
|
DB.query("SELECT 1 AS one FROM child_themes WHERE child_theme_id = :child AND parent_theme_id = :parent", child: child, parent: parent).present?
|
|
end
|
|
end
|