def filter_objs_count(self, curs):
cond = self._cond_by_filter_params()
q = Select(self.obj_class.table, columns=[Columns.COUNT_ALL], cond=cond)
curs.execute(*q.glue())
count_dict = fetchone_dict(curs)
_, count = count_dict.popitem()
return int(count)
def test_nested_select(self):
nested = Select('service_set_descr', columns=['name'], cond=Eq('name', 'registration ru'))
c, p = nested.glue()
self.assertEqual(c, 'SELECT "name" FROM "service_set_descr" WHERE "name" = %s')
self.assertEqual(p, ['registration ru'])
scoped_cond = Scoped(nested)
c, p = scoped_cond.glue()
self.assertEqual(c, '(SELECT "name" FROM "service_set_descr" WHERE "name" = %s)')
self.assertEqual(p, ['registration ru'])
cond_eq = Eq('service_set_descr_id', Scoped(nested))
c, p = cond_eq.glue()
self.assertEqual(c, '"service_set_descr_id" = (SELECT "name" FROM "service_set_descr" WHERE "name" = %s)')
self.assertEqual(p, ['registration ru'])
nested = Select('service_set', columns=['service_type_id'], cond=cond_eq)
c, p = nested.glue()
self.assertEqual(c, 'SELECT "service_type_id" FROM "service_set" WHERE "service_set_descr_id" = (SELECT "name" FROM "service_set_descr" WHERE "name" = %s)')
self.assertEqual(p, ['registration ru'])
in_cond = In('id', nested)
c, p = in_cond.glue()
self.assertEqual(c, '''"id" IN (SELECT "service_type_id" FROM "service_set" WHERE "service_set_descr_id" = (SELECT "name" FROM "service_set_descr" WHERE "name" = %s))''')
self.assertEqual(p, ['registration ru'])
any_cond = Any('id', nested)
c, p = any_cond.glue()
self.assertEqual(c, '''%s = ANY (SELECT "service_type_id" FROM "service_set" WHERE "service_set_descr_id" = (SELECT "name" FROM "service_set_descr" WHERE "name" = %s))''')
self.assertEqual(p, ['id', 'registration ru'])
def get_last_applied(self, curs=None):
if not self.is_table_exist(curs):
return None
else:
q = Select(self.table, order_by=['-id'], limit=1)
curs.execute(*q.glue())
result = wrapper.fetchall_dicts(curs)
return result[0]['name'] if len(result) else None
def is_table_exist(self, curs):
q = Select('pg_tables', cond=Eq('tablename', self.table))
curs.execute(*q.glue())
return len(curs.fetchall()) > 0