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# File 'activerecord/lib/active_record/table_metadata.rb', line 29
def associated_table(table_name)
reflection = klass._reflect_on_association(table_name) || klass._reflect_on_association(table_name.singularize)
if !reflection && table_name == arel_table.name
return self
end
if reflection
association_klass = reflection.klass unless reflection.polymorphic?
elsif block_given?
association_klass = yield table_name
end
if association_klass
arel_table = association_klass.arel_table
arel_table = arel_table.alias(table_name) if arel_table.name != table_name
TableMetadata.new(association_klass, arel_table, reflection)
else
type_caster = TypeCaster::Connection.new(klass, table_name)
arel_table = Arel::Table.new(table_name, type_caster: type_caster)
TableMetadata.new(nil, arel_table, reflection)
end
end
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