Django: How to display specific object to specific user - html

Question

I am new to django and working on a project where admin have to assign a team to manager and when ever admin assign a team to manager then it will be shown to that specific manager only.I have no idea how can i do this. Please if someone can help please help me.
here is my .html file for admin from where admin can assign team to manager.
<thead>
<tr>
<th>S No.</th>
<th>COMPANY NAME</th>
<th>TEAM MEMBER</th>
<th>EMAIL</th>
<th>ASSIGN TEAM</th>
</tr>
</thead>
<tbody>
{%for team in object%}
<tr>
<form id="form_id" method="POST" action = "{% url 'accept' %}">
{% csrf_token %}
<th scope="row"> {{ forloop.counter }}</th>
<td>{{team.company_name}}</td>
<td>{{team.team_member}}</td>
<td>{{team.email}}</td>
<td>
<select name="manager_{{manager.id}}">
{% for manager in managers %}
<option value ="{{manager.id}}">{{manager.name}}</option>
{% endfor %}
</select>
</td>
<td>
<input class="btn btn-raised btn-primary btn-round waves-effect" type="submit" value="Assign">
</td>
</tr>
{% endfor %}
here is my model for the team and manager:
class Create_Team(models.Model):
first_name = models.CharField(max_length= 50)
last_name = models.CharField(max_length= 50)
company_name = models.CharField(max_length= 100)
address = models.CharField(max_length= 1000)
state = models.CharField(max_length= 100)
city = models.CharField(max_length= 100)
status = models.CharField(max_length= 30)
class manager(models.Model):
name = models.CharField(max_length= 500)
designation = models.CharField(max_length= 500)
here is my views.py file for manager and from where the admin is accepting the request:
def accept(request):
obj= Create_Team.objects.filter(status='Accept')
managers = manager.objects.all()
if request.method == 'POST':
acc = manager()
manager_id = int(request.POST.get('manager', 1))
acc.manager = manager.objects.get(pk=manager_id)
return render(request, "admin/accept.html", {"object": obj, "managers": managers})
def superior(request):
return render(request, 'manager/index-3.html')
I want that whenever the admin will click on the assign button then that team will be displayed to that manager.Please help me.

Answer 1

There are several issues with your code.
There is no relation from the Create_Team to the manager model.
The name attribute on your <select> tags do not match the key you using to read from request.POST. manager_{{manager.id}} renders as manager_, so int(request.POST.get('manager', 1)) will always return 1.
The forms in your template do not contain the information which team you want to update.
You do not set the attribute selected on any <option>. As a consequence, the first choice will always be selected.
You are not updating any team in your view.
Let's address these issues.
1 - We fix the models by adding a ForeignKey from CreateTeam to Manager. Note that I've renamed the models, which is optional. If you decide to keep your names, adapt it accordingly.
# models.py
from django.db import models
class CreateTeam(models.Model):
first_name = models.CharField(max_length= 50)
last_name = models.CharField(max_length= 50)
company_name = models.CharField(max_length= 100)
address = models.CharField(max_length= 1000)
state = models.CharField(max_length= 100)
city = models.CharField(max_length= 100)
status = models.CharField(max_length= 30)
manager = models.ForeignKey('Manager', on_delete=models.SET_NULL, null=True, blank=True)
class Manager(models.Model):
name = models.CharField(max_length= 500)
designation = models.CharField(max_length= 500)
You have to pass two bits of information to the assign view: the id of the CreateTeam you want to assign and the id of the Manager you want to assign it to.
Note that the name attribute of form fields is the key in request.POST. These can be any string, just make sure it matches between form and view. It obviously makes life to give them an expressive name.
2 - Sending the id of the Manager is handled by the <select>. Just make sure the name attribute matching the key you use in your view.
3 - To send the id of the team, you could use a <button type="submit"> with a name and a value instead of the <input type="submit">.
<button class="btn btn-raised btn-primary btn-round waves-effect" type="submit" name="team" value="{{ team.id }}">Assign</button>
</td>
Alternatively, you could use a hidden field.
4 - Finally, you have to have to set the attribute selected on the correct <option> in your <select>. You can do that like this:
<option value="{{manager.id}}" {% if team.manager.id == manager.id %}selected{% endif %}
Here is the complete template:
<html>
<head></head>
<body>
<table>
<thead>
<tr>
<th>S No.</th>
<th>COMPANY NAME</th>
<th>TEAM MEMBER</th>
<th>EMAIL</th>
<th>ASSIGN TEAM</th>
</tr>
</thead>
<tbody>
{%for team in teams%}
<tr>
<form id="form_id" method="POST" action="{% url 'accept' %}">
{% csrf_token %}
<th scope="row"> {{ forloop.counter }}</th>
<td>{{team.company_name}}</td>
<td>{{team.team_member}}</td>
<td>{{team.email}}</td>
<td>
<select name="manager">
{% for manager in managers %}
<option value="{{manager.id}}" {% if team.manager.id == manager.id %}selected{% endif %}>{{manager.name}}</option>
{% endfor %}
</select>
</td>
<td>
<button class="btn btn-raised btn-primary btn-round waves-effect" type="submit" name="team" value="{{ team.id }}">Assign</button>
</td>
</form>
</tr>
{% endfor %}
</tbody>
</table>
</body>
</html>
5 - When receiving a POST request, you can assign the manager to the team.
That means you have to use the id values to get a CreateTeam instance and a Manager instance. Then you assign the Manager to createteam.manager and save the createteam object.
from django.shortcuts import get_object_or_404, redirect, render
from .models import CreateTeam, Manager
def accept(request):
teams = CreateTeam.objects.filter(status='Accept')
managers = Manager.objects.all()
if request.method == 'POST':
createteam_id = int(request.POST.get('team', 1))
manager_id = int(request.POST.get('manager', 1))
createteam = get_object_or_404(teams, pk=createteam_id)
createteam.manager = get_object_or_404(Manager, pk=manager_id)
createteam.save()
redirect('accept')
return render(request, "admin/accept.html", {"teams": teams, "managers": managers})
There are three things worth highlighting:
We use get_object_or_404 instead of Model.objects.get. As the name implies, it returns a 404 if no model can be found. This serves as a simple error handling for edge cases like a user manipulating the form or a manager being deleted while the user has the page open. This error handling could be improved to be more user-friendly, but it's a start.
get_object_or_404 can take a model or a queryset. We load the team instance from the filtered queryset teams. Otherwise, a user could manipulate a form and assign a manager to a team that has a status other than Accept.
After saving the team, we redirect to the accept page. This is good practice and ensures that a user can reload the page without seeing the do you want to resubmit this form dialog.
Finally, make sure that this view is really only accessible by the admin, e.g. by adding an appropriate user_passes_test decorator.