>>> all_ins = Ins.objects.raw("select p from ins where p like '11.%' and stat = 1")
>>>
>>> all_ins[0]
Traceback (most recent call last):
File "<console>", line 1, in <module>
File "/usr/local/lib/python2.7/site-packages/Django-1.8.7-py2.7.egg/django/db/models/query.py", line 1323, in __getitem__
return list(self)[k]
File "/usr/local/lib/python2.7/site-packages/Django-1.8.7-py2.7.egg/django/db/models/query.py", line 1284, in __iter__
query = iter(self.query)
File "/usr/local/lib/python2.7/site-packages/Django-1.8.7-py2.7.egg/django/db/models/sql/query.py", line 80, in __iter__
self._execute_query()
File "/usr/local/lib/python2.7/site-packages/Django-1.8.7-py2.7.egg/django/db/models/sql/query.py", line 98, in _execute_query
self.cursor.execute(self.sql, self.params)
File "/usr/local/lib/python2.7/site-packages/Django-1.8.7-py2.7.egg/django/db/backends/utils.py", line 64, in execute
return self.cursor.execute(sql, params)
File "/usr/local/lib/python2.7/site-packages/Django-1.8.7-py2.7.egg/django/db/backends/mysql/base.py", line 124, in execute
return self.cursor.execute(query, args)
File "build/bdist.linux-x86_64/egg/MySQLdb/cursors.py", line 159, in execute
query = query % db.literal(args)
TypeError: not enough arguments for format string
この問題の理由は、SQL ではパーセント記号がペアで表示される必要があるためです。これは問題ありません。
>>> all_ins = Ins.objects.raw("select p from ins where p like '%11.%' and stat = 1")
実際、「11.%」のあいまいクエリを実現するために、django はそれをサポートしています。p__startswith='11.'