tortoise / tortoise/tortoise-orm

Error caused by %

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Description

DEBUG:tortoise.db_client:UPDATE `order` SET `type`=%s WHERE `type`=17 AND (CAST(`result` AS CHAR) LIKE '%****%' OR CAST(`result` AS CHAR) LIKE '%----%'): [16]
ERROR:telethon.client.updates:Unhandled exception on handler
Traceback (most recent call last):
  File "/usr/local/lib/python3.8/dist-packages/telethon/client/updates.py", line 570, in _dispatch_update
    await callback(event)
  File "x.py", line 615, in handler
    await query(event)
  File "x.py", line 306, in query
    await Order.filter(Q(type=17) & (Q(result__contains='****') | Q(result__contains='----'))).update(type=16)
  File "/usr/local/lib/python3.8/dist-packages/tortoise/queryset.py", line 1111, in _execute
    return (await self._db.execute_query(str(self.query), self.values))[0]
  File "/usr/local/lib/python3.8/dist-packages/tortoise/backends/mysql/client.py", line 44, in translate_exceptions_
    return await func(self, *args)
  File "/usr/local/lib/python3.8/dist-packages/tortoise/backends/mysql/client.py", line 199, in execute_query
    await cursor.execute(query, values)
  File "/usr/local/lib/python3.8/dist-packages/aiomysql/cursors.py", line 237, in execute
    query = query % self._escape_args(args, conn)

The initial suspicion is caused by contains, how can I solve this problem

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with tortoise/backends/mysql/client.py and the execute_query path shown in the traceback, then inspect tortoise/queryset.py where the SQL and values are passed to the backend. Reproduce the filter using Q(result__contains=...) and verify that MySQL executes the generated LIKE query without the formatting error while preserving the intended wildcard patterns.

Written by the indexing model from the issue text.

Assessment

Tech stack
mysql, python
Domain
database
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
30/100

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