Python Django表单无效

我试图在Django中发布表单中的数据，但当我单击submit时，它不会进入帖子。我已经用Django写了一些帖子，它们工作得很好。在这里，第一次呈现模板时，它会进入NO POST，这是正确的。但是，当提交表单时，它会说无效

url.py

forms.py

模板

---

我知道一些用户告诉我，我不应该这样使用django，我这样做是有原因的，请避免评论，因为这不是现在的问题。谢谢

问题在于初始化

表单_limit

，该表单是在不读取请求参数的情况下创建的。请尝试：

if request.method == 'POST':
    form_limit = LimitQueryForm(request.POST)
    ...
else:
    form_limit = LimitQueryForm()

供参考：

清洁剂

def viewtraps(request):
    # ... db connections        
    form_limit = LimitQueryForm(request.POST or None) #<--- this was your typo
    if form_limit.is_valid():
        limit = "VALID"
        dictionary = RequestContext(request, {"buffer_data": b, "form_limit": form_limit, "limit": limit})
        return render_to_response("viewtraps.html", dictionary)
    else:
        limit = "NOT VALID"
        dictionary = RequestContext(request, {"buffer_data": b, "form_limit": form_limit, "limit": limit})
        return render_to_response("viewtraps.html", dictionary)

    dictionary = RequestContext(request, {"buffer_data": b, "form_limit": form_limit, "limit": limit})
    return render_to_response("viewtraps.html", dictionary)

def视窗（请求）：
# ... 数据库连接
form_limit=LimitQueryForm（request.POST或None）#
form_limit.errors
说什么？你是说如果我把它放在这里，我会得到什么<代码>{%csrf\u令牌%}{{form\u limit.errors}}{{form\u limit}}Aceptar

或检查调试器窗口。。。表单上有一个字段，说明有哪些错误。最可能的原因是表单限制是表单的新实例，没有传入任何值。我如何检查调试器？？什么是新实例？这取决于您使用的IDE，大多数IDE都有设置断点和查看值的方法。

<form action="/services/traps/view/" method="post">{% csrf_token %}
    {{ form_limit }}   
    <button type="submit" value="btn_limit_val" name="btn_limit_name">Aceptar</button>    
</form> 

def viewtraps(request):

    connect_mysql = mdb.connect(*)
    cursorMYSQL = connect_mysql.cursor(mdb.cursors.DictCursor)
    cursorMYSQL.execute("""select eventname,eventid,trapoid,enterprise,community,hostname,agentip,category,severity,uptime,traptime,formatline,timestamp from snmptt order by id desc limit 500""")
    b = cursorMYSQL.fetchall()
    connect_mysql.close()

    form_limit = LimitQueryForm()

    if request.method == 'POST':

        if form_limit.is_valid():

            limit = "VALID"

            dictionary = RequestContext(request, {"buffer_data": b, "form_limit": form_limit, "limit": limit})
            return render_to_response("viewtraps.html", dictionary)

        else:

            limit = "NOT VALID"

            dictionary = RequestContext(request, {"buffer_data": b, "form_limit": form_limit, "limit": limit})
            return render_to_response("viewtraps.html", dictionary)

    else:   

        limit = "NO POST"

        dictionary = RequestContext(request, {"buffer_data": b, "form_limit": form_limit, "limit": limit})
        return render_to_response("viewtraps.html", dictionary)

if request.method == 'POST':
    form_limit = LimitQueryForm(request.POST)
    ...
else:
    form_limit = LimitQueryForm()

def viewtraps(request):
    # ... db connections        
    form_limit = LimitQueryForm(request.POST or None) #<--- this was your typo
    if form_limit.is_valid():
        limit = "VALID"
        dictionary = RequestContext(request, {"buffer_data": b, "form_limit": form_limit, "limit": limit})
        return render_to_response("viewtraps.html", dictionary)
    else:
        limit = "NOT VALID"
        dictionary = RequestContext(request, {"buffer_data": b, "form_limit": form_limit, "limit": limit})
        return render_to_response("viewtraps.html", dictionary)

    dictionary = RequestContext(request, {"buffer_data": b, "form_limit": form_limit, "limit": limit})
    return render_to_response("viewtraps.html", dictionary)