使用 django 编程时如何编写表单动作

Question

我想编写表单操作以从 viwes.py 调用 newpost 函数，newpost 函数有 2 个参数是 newpost(request,myid)，但是当我尝试编写 action="{%url 'newpost' %}" 出现如下错误：

TypeError at /newpost newpost() missing 1 required positional argument: 'myid'

我怎样才能在表单动作中发送这个参数？ 请告诉我

def newpost (request,myid):
         blockedperson=[1]
         assert isinstance(request, HttpRequest)
   
         print("if1")
         print (request.POST.get('postcontent'))
         print (type(request.POST.get('postcontent')))
         while request.POST.get('postcontent'):
            print ("if2")
            if myid not in blockedperson :
                savepost=post()
                savepost.person_id= 437819147
                savepost.content=request.POST.get('postcontent')
                savepost.p_date=dt.datetime.now()
                savepost.save() 
            else :
                blocked="sorry, you are blocked, you can not share a post, for more information contact with IT on 437819147@kku.edu.sa"
                return render (request,'home.html',{'block':blocked})

         allpost=post.objects.all()
         allperson=person.objects.all()
         allstudent=student.objects.all()
         allteacher=teacher.objects.all()
         allcomp=company_rep.objects.all()

         return render (request,'home.html',{'posts':allpost , 'person':allperson,'student':allstudent,'teacher':allteacher,'comp':allcomp,'id':myid})
       

<form name="postbox" action="{%url 'newpost' %}" method="POST" align="center">
        {% csrf_token %}
        <label>shear your ideas, information, and experience...</label>
        <br />
        <textarea id="post" name="postcontent" rows="4" cols="50">

 </textarea>
        <br />
        <input  style="width: 31%;" type="submit" value="post"  name="postsubmit">
        
    </form>

这也是我的 urls 文件，如果我添加任何参数，我应该在其中更改吗？

urlpatterns = [
   
     path('' , app.views.login),
     path('newpost' , app.views.newpost,name='newpost'),
     path('signup' , app.views.signup,name='signup'),
     path('signupteacher' , app.views.signupteacher,name='signupteacher'),
     path('signupstudent' , app.views.signupstudent,name='signupstudent'),
     path('signupcompany' , app.views.signupcompany,name='signupcompany')
   
]

Answer 1

在发送 myid 时，也可以在函数中发送它

喜欢这个“{%url 'newpost' myid %}”

您的代码将如下所示：

<form name="postbox" action="{%url 'newpost' myid %}" method="POST" align="center">

参考现在，创建一个 polls/results.html 模板：来自django doc

Answer 2

在这里找到：

Django : HTML form action directing to view (or url?) with 2 arguments

在您的 html 中：

<form name="postbox" action="{%url 'newpost' %}" method="POST" align="center">
        {% csrf_token %}
        <label>shear your ideas, information, and experience...</label>
        <br />
        <textarea id="post" name="postcontent" rows="4" cols="50">

 </textarea>
        <br />
        <input  style="width: 31%;" type="submit" value="post"  name="postsubmit">
        
    </form>

您想将表单的 action 属性更改为： {%url 'newpost' myid %}

<form name="postbox" action="{%url 'newpost' myid %}" method="POST" align="center">
        {% csrf_token %}
        <label>shear your ideas, information, and experience...</label>
        <br />
        <textarea id="post" name="postcontent" rows="4" cols="50">

 </textarea>
        <br />
        <input  style="width: 31%;" type="submit" value="post"  name="postsubmit">
        
    </form>