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rails--rails/activerecord/lib/arel/crud.rb
ignacio chiazzo 989d53ba3b Use nested queries when doing DELETE and GROUP_BY and HAVINAG clauses present.
MySQL does not support GROUP_BY and HAVING on UPDATE, we need to use a Subquery.

Co-authored-by: Rafael Mendonça França <rafael@franca.dev>
2021-11-01 21:39:20 -04:00

48 lines
1.1 KiB
Ruby

# frozen_string_literal: true
module Arel # :nodoc: all
###
# FIXME hopefully we can remove this
module Crud
def compile_insert(values)
im = create_insert
im.insert values
im
end
def create_insert
InsertManager.new
end
def compile_update(
values,
key = nil,
having_clause = nil,
group_values_columns = []
)
um = UpdateManager.new(source)
um.set(values)
um.take(limit)
um.offset(offset)
um.order(*orders)
um.wheres = constraints
um.key = key
um.group(group_values_columns) unless group_values_columns.empty?
um.having(having_clause) unless having_clause.nil?
um
end
def compile_delete(key = nil, having_clause = nil, group_values_columns = [])
dm = DeleteManager.new(source)
dm.take(limit)
dm.offset(offset)
dm.order(*orders)
dm.wheres = constraints
dm.key = key
dm.group(group_values_columns) unless group_values_columns.empty?
dm.having(having_clause) unless having_clause.nil?
dm
end
end
end