Files
has_aux_table/lib/aux_table/auto_join_queries.rb
2025-07-15 03:50:34 +00:00

105 lines
3.1 KiB
Ruby

# typed: false
# frozen_string_literal: true
module HasAuxTable
module QueryExtensions
extend T::Sig
# Split conditions into main table and aux table conditions
def split_conditions(conditions, aux_config)
main_conditions = {}
aux_conditions = {}
conditions.each do |key, value|
if aux_config.is_aux_column?(key)
aux_conditions[key] = value
else
main_conditions[key] = value
end
end
[main_conditions, aux_conditions]
end
sig do
params(
on: T.any(ActiveRecord::Relation, T.class_of(ActiveRecord::Base)),
aux_config: AuxTableConfig,
with_bind_attribute: T::Boolean
).void
end
def setup_query_extensions!(on, aux_config, with_bind_attribute: true)
association_name = aux_config.aux_association_name
on.define_singleton_method(:where) do |*args|
if args.first.is_a?(Hash)
relation = self.eager_load(association_name)
self.apply_split_conditions!(relation, args)
self.setup_query_extensions!(relation, aux_config)
relation
else
super(*args)
end
end
all_method = on.method(:all)
on.define_singleton_method(:all) do
all_method.call.eager_load(association_name)
end
unscoped_method = on.method(:unscoped)
on.define_singleton_method(:unscoped) do
relation = unscoped_method.call
self.setup_query_extensions!(relation, aux_config)
relation
end
if with_bind_attribute
bind_attribute_method = on.method(:bind_attribute)
on.define_singleton_method(:bind_attribute) do |name, value, &block|
if aux_config.is_aux_column?(name)
aux_config.aux_bind_attribute(name, value, &block)
else
bind_attribute_method.call(name, value, &block)
end
end
end
on.define_singleton_method(:find_by) do |*args|
relation = self.eager_load(association_name)
self.apply_split_conditions!(relation, args)
relation.first
end
on.define_singleton_method(:apply_split_conditions!) do |relation, args|
conditions = args.first
main_conditions, aux_conditions =
self.split_conditions(conditions, aux_config)
relation.where!(main_conditions) if main_conditions.any?
if aux_conditions.any?
relation.where!(association_name => aux_conditions)
end
end
on.define_singleton_method(:find) do |*args|
self.eager_load(association_name).find(*args)
end
on.define_singleton_method(:exists?) do |*args|
conditions = args.first || {}
main_conditions, aux_conditions =
self.split_conditions(conditions, aux_config)
puts "checking with conditions: #{main_conditions} / #{aux_conditions}"
relation = self.select("1").joins(association_name)
relation.where!(main_conditions) if main_conditions.any?
if aux_conditions.any?
relation.where!(association_name => aux_conditions)
end
relation.first.present?
end
end
end
end