User group is not creating?

Question

Here I made a form for taking the group name from the user and then tried to create group name with that name entered by user but it is not giving me the expected result.It is neither throwing any error nor saving the data in the database. When i used group_name = request.POST['name'] instead of cleaned_data it throws:

django.utils.datastructures.MultiValueDictKeyError: 'name'

What I am doing wrong here ?

forms.py

class AddUserGroupForm(forms.Form):
    name = forms.CharField(max_length=255)

views.py

def add_user_groups(request):
    form = AddUserGroupForm()
    #group_name = request.POST['name']
    #print(group_name,'group_name')
    if form.is_valid():
        group_name = form.cleaned_data['name']
        permissions = request.POST.getlist('user_permissions')
        new_group = Group.objects.create(name=group_name)
        new_group.permissions.add(permissions)
        messages.success(request,'New group added.')
        return redirect('organization:view_groups')
    return render(request,'organization/add_user_groups.html',{'user_permissions':user_permissions,'form':form})

template

<form action="{% url 'organization:add_user_group' %}" method="post">
                    {% csrf_token %}
    <label> Group Name : </label>
       <input type="text" class="form-control required" placeholder="Enter 
            group name" name="name">
                    <label>Permissions:</label>
                    {% for permission in user_permissions %}
                        <input name="user_permissions" type="checkbox" id="permission-{{permission.id}}"
                          value="{{permission.id}}">
                        <label for="permission-{{permission.id}}"> {{permission.name}}</label>


                    </div>
                    {% endfor %}                               
<button type="submit" class="btn btn-info">Submit</button>
         </div>
</form>

Yugandhar Chaudhari · Accepted Answer · 2019-09-20T06:04:10.980

0

Because your cleaned_data is empty for
form = AddUserGroupForm() if you want to access the data

do form = AddUserGroupForm(request.POST)

so that data will be cleaned according to POST request and call is_valid() on it.

If you wish add validation add it in clean method of form class see here

It should be like this

def add_user_groups(request):
  if request.method == 'POST':
    form = AddUserGroupForm(request.POST)
    #group_name = request.POST['name']
    #print(group_name,'group_name')
    if form.is_valid():
        group_name = form.cleaned_data['name']
        permissions = request.POST.getlist('user_permissions')
        new_group = Group.objects.create(name=group_name)
        new_group.permissions.add(permissions)
        messages.success(request,'New group added.')
        return redirect('organization:view_groups')
  else:
        #empty form for get request
        form = AddUserGroupForm()
  return render(request,'organization/add_user_groups.html',{'user_permissions':user_permissions,'form':form})

edited Sep 20 '19 at 06:04

answered Sep 20 '19 at 06:00

Yugandhar Chaudhari

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now i got problem while adding permissions to the group it is throwing `unhashable type: 'list'` – Hello Sep 20 '19 at 06:04
which line you are getting this ? – Yugandhar Chaudhari Sep 20 '19 at 06:05
`new_group.permissions.add(permissions)` here – Hello Sep 20 '19 at 06:05
First create permission by `Permission.objects.create()` from the list you are getting then add the permission it should be `Permission` instance – Yugandhar Chaudhari Sep 20 '19 at 06:07
1

`new_group.permissions.set(permissions)` worked instead of `add` – Hello Sep 20 '19 at 06:13

User group is not creating?

1 Answers1