"rethinkdb.errors.ReqlServerCompileError: Expected 2 arguments but found 1 in:" when trying to .update() with Python rethink

Question

我正在使用 Python 模块与 RethinkDB 合作，现在我正在尝试使用以下语句更新模型：

results = rethink.table(model + "s").filter(id=results["id"]).update(data).run(g.rdb_conn)

model 是函数前面定义的东西，在本例中它是 quote 并且 data 是 JSON 数据的字典：

{
    "channelId": "paradigmshift3d",
    "quoteId": "1",
    "quote": "Testing 123",
    "userId": "123",
    "messageId": "456"
}

根据 RethinkDB API reference 的说法，我使用的应该有效，但事实并非如此。这是完整的回溯：

Traceback (most recent call last):
  File "/usr/local/lib/python3.5/dist-packages/flask/app.py", line 2000, in __call__
    return self.wsgi_app(environ, start_response)
  File "/usr/local/lib/python3.5/dist-packages/flask/app.py", line 1991, in wsgi_app
    response = self.make_response(self.handle_exception(e))
  File "/usr/local/lib/python3.5/dist-packages/flask/app.py", line 1567, in handle_exception
    reraise(exc_type, exc_value, tb)
  File "/usr/local/lib/python3.5/dist-packages/flask/_compat.py", line 33, in reraise
    raise value
  File "/usr/local/lib/python3.5/dist-packages/flask/app.py", line 1988, in wsgi_app
    response = self.full_dispatch_request()
  File "/usr/local/lib/python3.5/dist-packages/flask/app.py", line 1641, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "/usr/local/lib/python3.5/dist-packages/flask/app.py", line 1544, in handle_user_exception
    reraise(exc_type, exc_value, tb)
  File "/usr/local/lib/python3.5/dist-packages/flask/_compat.py", line 33, in reraise
    raise value
  File "/usr/local/lib/python3.5/dist-packages/flask/app.py", line 1639, in full_dispatch_request
    rv = self.dispatch_request()
  File "/usr/local/lib/python3.5/dist-packages/flask/app.py", line 1625, in dispatch_request
    return self.view_functions[rule.endpoint](**req.view_args)
  File "/home/nate/CactusAPI/views.py", line 309, in chan_quote
    fields=fields
  File "/home/nate/CactusAPI/helpers.py", line 403, in generate_response
    ).update(data).run(g.rdb_conn)
  File "/usr/local/lib/python3.5/dist-packages/remodel/monkey.py", line 18, in remodel_run
    return run(self, c, **global_optargs)
  File "/usr/local/lib/python3.5/dist-packages/rethinkdb/ast.py", line 118, in run
    return c._start(self, **global_optargs)
  File "/usr/local/lib/python3.5/dist-packages/rethinkdb/net.py", line 620, in _start
    return self._instance.run_query(q, global_optargs.get('noreply', False))
  File "/usr/local/lib/python3.5/dist-packages/rethinkdb/net.py", line 466, in run_query
    raise res.make_error(query)
rethinkdb.errors.ReqlServerCompileError: Expected 2 arguments but found 1 in:
r.table('quotes').filter(id='92c5160a-db57-4c3b-b2b2-2704cdcfc2b7').update(r.expr({'channelId': 'paradigmshift3d', 'quoteId': '1', 'quote': 'Testing 123', 'userId': '123', 'messageId': '456'}))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

我用谷歌搜索了一下，但似乎没有 questions/issues 关于这个问题。

Answer 1

这是因为我试图用一个参数 .filter() 造成的。 .filter() 需要字典，而我只是提供 id = 92c5160a-db57-4c3b-b2b2-2704cdcfc2b7'.

我将查询更改为

rethink.table(model + "s").get(results["id"]).update(data).run(g.rdb_conn)

现在可以使用了！

"rethinkdb.errors.ReqlServerCompileError: Expected 2 arguments but found 1 in:" when trying to .update() with Python rethink

"rethinkdb.errors.ReqlServerCompileError: Expected 2 arguments but found 1 in:" when trying to .update() with Python rethink

python

rethinkdb

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