'model_type in Django template

I am learning Django from a book called Web Development with Django. In one of the activities there is a tag in one of the templates as below:

{% block title %}
{% if instance %}
Editing {{ model_type }} {{ instance }}
{% else %}
New {{ model_type }}
{% endif %}
{% endblock %}

What is the model_type? I have never seen this tag before. It is not in any of the view.py functions or anywhere else.

Solution 1:^[1]

Django works on MVT^[javapoint] design pattern, so whether instances,querysets must be passed through view, whether hardcoded or fetching from any Model.

model_type is not any inbuilt property or anyting, they are passed through views.

Consider 1st example (Things are hardcoded):

Create a project and create an application home, through python manage.py startapp home. create templates folder for html files inside app at the path home/templates/home/index.html, this means template namespacing^[django-doc]

Note: You don't need to give templates in APP_DIRS in settings.py, they are only given when we place all the templates from all apps, in outside folder, same for static.

index.html

<body>
    <h2>Name : {{name}}</h2>
    <h2>Technology : {{technology}}</h2>
</body>

views.py

from django.shortcuts import render


def home(request):
    context = {
        'name': 'reza',
        'technology': 'django'
    }
    return render(request, 'home/index.html', context)

urls.py

from django.urls import path
urlpatterns = [
    path('home/', views.home, name='home')
]

In above example, things are hardcoded but we generally use in loops.

Consider 2nd example (data is from database):

In this example, I have created a model and data will come dynamically.

models.py

from django.db import models


class StudentDetail(models.Model):
    name = models.CharField(max_length=100)
    email = models.EmailField(max_length=200)
    total_marks = models.PositiveIntegerField()

    class Meta:
        ordering = ['name']

    def __str__(self):
        return f"Record of {self.name} was added."

Now, register it in admin.py to see in the admin interface.

admin.py

from django.contrib import admin
from .models import StudentDetail

@admin.register(StudentDetail)
class StudentDetailAdmin(admin.ModelAdmin):
    list_display = ['id', 'name', 'email', 'total_marks']

Now, run python manage.py makemigrations, then run python manage.py migrate.

Now, create superuser to add some data manually, by python manage.py createsuperuser.

Then, add 3 or 4 records in database through admin interface.

Now, make your views to retrieve objects dynamically.

views.py

from django.shortcuts import render
from .models import StudentDetail


def home(request):
    all_students = StudentDetail.objects.all()
    context = {
        'all_students': all_students

    }
    return render(request, 'home/index.html', context)

index.html

<body>
    <table border='3px' cellpadding='1px' cellspacing='5px' style='text-align:center;'>
        <thead>
            <tr>
                <th>Name</th>
                <th>Email</th>
                <th>Total Marks</th>
            </tr>
        </thead>
        <tbody>
            {% for student in all_students  %}
            <tr>
                <td>{{student.name}}</td>
                <td>{{student.email}}</td>
                <td>{{student.total_marks}}</td>
            </tr>
            {% endfor %}
        </tbody>
    </table>    
</body>

In the above way, work is done, I'll recommend you to directly read and learn everything from django-doc. At first level starts with topic-guides, and also see how the documentation is organized.

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Solution	Source
Solution 1	Sunderam Dubey

'model_type in Django template

Solution 1:[1]

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Solution 1:^[1]