mirror of
https://github.com/mastodon/mastodon.git
synced 2024-08-20 21:08:15 -07:00
51 lines
1.6 KiB
Ruby
51 lines
1.6 KiB
Ruby
# frozen_string_literal: true
|
|
|
|
# Fix an issue with `LIMIT` ocurring on the left side of a `UNION` causing syntax errors.
|
|
# See https://github.com/rails/rails/issues/40181
|
|
|
|
# The fix has been merged in ActiveRecord: https://github.com/rails/rails/pull/51549
|
|
# TODO: drop this when available in ActiveRecord
|
|
|
|
# rubocop:disable all -- This is a mostly vendored file
|
|
|
|
module Arel
|
|
module Visitors
|
|
class ToSql
|
|
private
|
|
|
|
def infix_value_with_paren(o, collector, value, suppress_parens = false)
|
|
collector << "( " unless suppress_parens
|
|
collector = if o.left.class == o.class
|
|
infix_value_with_paren(o.left, collector, value, true)
|
|
else
|
|
select_parentheses o.left, collector, false # Changed from `visit o.left, collector`
|
|
end
|
|
collector << value
|
|
collector = if o.right.class == o.class
|
|
infix_value_with_paren(o.right, collector, value, true)
|
|
else
|
|
select_parentheses o.right, collector, false # Changed from `visit o.right, collector`
|
|
end
|
|
collector << " )" unless suppress_parens
|
|
collector
|
|
end
|
|
|
|
def select_parentheses(o, collector, always_wrap_selects = true)
|
|
if o.is_a?(Nodes::SelectStatement) && (always_wrap_selects || require_parentheses?(o))
|
|
collector << "("
|
|
visit o, collector
|
|
collector << ")"
|
|
collector
|
|
else
|
|
visit o, collector
|
|
end
|
|
end
|
|
|
|
def require_parentheses?(o)
|
|
!o.orders.empty? || o.limit || o.offset
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
# rubocop:enable all
|