python - 类型错误:()得到了意外的关键字参数

我在弄清楚我的函数editMenuItem()从哪里获取未知关键字参数restaurant_id时遇到麻烦。我已经搜索了类似的问题，但找不到解决方案。如果有人有任何建议，我将不胜感激。

    Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/flask/app.py", line 1836, in __call__
    return self.wsgi_app(environ, start_response)
  File "/usr/lib/python2.7/dist-packages/flask/app.py", line 1820, in wsgi_app
    response = self.make_response(self.handle_exception(e))
  File "/usr/lib/python2.7/dist-packages/flask/app.py", line 1403, in handle_exception
    reraise(exc_type, exc_value, tb)
  File "/usr/lib/python2.7/dist-packages/flask/app.py", line 1817, in wsgi_app
    response = self.full_dispatch_request()
  File "/usr/lib/python2.7/dist-packages/flask/app.py", line 1477, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "/usr/lib/python2.7/dist-packages/flask/app.py", line 1381, in handle_user_exception
    reraise(exc_type, exc_value, tb)
  File "/usr/lib/python2.7/dist-packages/flask/app.py", line 1475, in full_dispatch_request
    rv = self.dispatch_request()
  File "/usr/lib/python2.7/dist-packages/flask/app.py", line 1461, in dispatch_request
    return self.view_functions[rule.endpoint](**req.view_args)
TypeError: editMenuItem() got an unexpected keyword argument 'restaurant_id'

editMenuItem()

### Edit a menu item. ###
@app.route('/restaurant/<int:restaurant_id>/menu/<int:menuitem_id>/edit/',
            methods=['GET', 'POST'])
def editMenuItem(menuitem_id):
    menuitem = session.query(MenuItem).filter_by(id=menuitem_id).one()
    if request.method == 'POST':
        if request.form['newname']:
            menuitem.name = request.form['newname']
        if request.form['newdescription']:
            menuitem.description = request.form['newdescription']
        if request.form['newprice']:
            menuitem.description = request.form['newprice']
        session.add(menuitem)
        session.commit()
        return redirect(url_for('showMenu', restaurant_id=menuitem.restaurant_id))
    else:
        return render_template('editMenuItem.html', menuitem=menuitem)

Relevant html

{% extends "base.html" %}
{% block content %}
<div class="row">
  <div class="six columns">
    <form action="{{ url_for('editMenuItem', menuitem_id = menuitem.id) }}" method="post">
      <div class="six columns">
        <div class="six columns">
          Menu Item ID : {{ menuitem.id  }}
          <br>
          Menu Item Name : {{ menuitem.name }}
          <br>
          Menu Item Description : {{ menuitem.description }}
          <br>
          Menu ITem Price : {{ menuitem.price }}
          <br>
        </div>
        <br>
        <div class="six columns">
          <div class="six columns">
            <label for="newItemName">New item name</label>
            <input type="text" id="newname" class="form" name="newname" placeholder="Enter new name here">
            <br>
          </div>
          <div class="six columns">
            <label for="newItemDescription">New item Description</label>
            <input type="text" id="newdescription" class="form" name="newdescription" placeholder="Enter new description here">
            <br>
          </div>
          <div class="six columns">
            <label for="newItemPrice">New item Price</label>
            <input type="text" id="newprice" class="form" name="newprice" placeholder="Enter new price here">
            <br>
          </div>
        </div>
        <div class="six columns">
          <button type="submit" class="button">Edit</button>
          <a href="{{ url_for('showMenu') }}" class="button">Cancel</a>
          <br>
        </div>
      </div>
    </form>
  </div>
</div>
{% endblock %}

我不确定此关键字参数来自何处，因为不必给出restaurant_id即可使我的函数正常工作。我在这里做错了什么？谢谢。

最佳答案

感谢Wombatz提示，我能够通过更改editMenuItem函数并更改必要的模板来解决此问题。

更新功能：

### Edit a menu item. ###
@app.route('/restaurant/<int:restaurant_id>/menu/<int:menuitem_id>/edit/',
            methods=['GET', 'POST'])
def editMenuItem(menuitem_id, restaurant_id):
    menuitem = session.query(MenuItem).filter_by(id=menuitem_id).one()
    restaurant = session.query(Restaurant).filter_by(id=restaurant_id).one()
    if request.method == 'POST':
        if request.form['newname']:
            menuitem.name = request.form['newname']
        if request.form['newdescription']:
            menuitem.description = request.form['newdescription']
        if request.form['newprice']:
            menuitem.description = request.form['newprice']
        session.add(menuitem)
        session.commit()
        return redirect(url_for('showMenu', restaurant_id=menuitem.restaurant_id))
    else:
        return render_template('editMenuItem.html', menuitem=menuitem, restaurant=restaurant)

更新的模板：

<form action="{{ url_for('editMenuItem', menuitem_id = menuitem.id, restaurant_id = restaurant.id) }}" method="post">

<a href="{{ url_for('showMenu', restaurant_id=menuitem.restaurant_id) }}" class="button">Cancel</a>

我是刚接触此网站的人，所以不确定是否可以“支持”您的评论Wombatz，但感谢您的提示。