Django IntegerField

Introduction to Django IntegerField

The Integer_Example_ field is also one among the field types in Django. This Integer_Example_ type field allows covering all the Integer_Example_ values associated. So the instance considered here is int. it allows to store Integer_Example_ numbers in the database. The default value for these is a number kind of inputs, so all the inputs passed to the Integer_Example_ field needs to be of the number format. if supports a large range for values from the negative to positive values, the range is -2147483648 to 2147483647. The minValueValidators and the maxValueValidators are used here for validating the inputs used based on the input values supported by the default database which is been used. the Integer_Example_ field brings in a large amount of flexibility in operating the numeric values. Here will discuss Django IntegerField.

Syntax:

Name_of_field = models.IntegerField(**options)

The below is the syntax for Integer fields declaration, here the left-most item is the field that is actually declared. So, the name of the field will be constituted here. Next, the model’s library is referenced for extracting the Integer field. So, the model’s library has a field called IntegerField class and this IntegerField class is responsible for declaring the IntegerField. Next, the options associated to the IntegerField have also needed to be declared. So, the options like null, blank, or choices can be declared in the options section. The null options mention whether the field can be a null field or not, next the blank field mentions what should be the value of the blank field value and at last, the choices mention the range of choices which can be associated to this field.

How to Create a Django IntegerField?

The various steps to create Django IntegerField are as follows:

1. Changes in Models.py file

As mentioned in the syntax section the integer field needs to be declared in the models.py file. We can notice that the integer field is declared as the age field in the model.

models.py:

from django.db import models
from django.contrib.auth.models import User
# Model variables
# Create your models here.
class Bride(models.Model):
    Example_name = models.CharField(max_length=200,null=True)
    Example_age = models.IntegerField(null=True)
    Example_thegai = models.CharField(max_length=200,null=True)
    Example_State =  models.CharField(max_length=50,null=True)
    Example_District = models.CharField(max_length=50,null=True)
    Example_Address = models.TextField(null=True)
    Example_Phone = models.BigIntegerField(null=True)
    Example_profession = models.CharField(max_length=200,null=True)
    Example_salary = models.BigIntegerField(null=True)
    Example_Under_Graduation_Degree = models.CharField(max_length=200,null=True)
    Example_Under_Graduation_college = models.CharField(max_length=400,null=True)
    Example_Post_Graduation_Degree = models.CharField(max_length=200,null=True)
    Example_Post_Graduation_college = models.CharField(max_length=400,null=True)
    Example_Rasi = models.CharField(max_length=200,null=True)
    Example_Nakshatra = models.CharField(max_length=200,null=True)
    Image  = models.ImageField(null=True,blank=True,upload_to="img/%y")
    def __str__(self):
        return self.name

2. Changes in Settings.py file

Ensure all the values and the database connects are set properly in the settings.py file so that the project can be kicked for execution flexibly. The middleware items mentioned below have to be declared properly in the settings.py file because these middlewares are responsible for the functioning of the application while processing GET and PUT messages. Additionally, the templates used has also need to fill so that the template processing happens in the background.

Settings.py:

MIDDLEWARE = [
    'django.middleware.security.SecurityMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
]
ROOT_URLCONF = 'Matrimony.urls'
TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [Template_DIR,],
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
            ],
        },
    },
]
DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.sqlite3',
        'NAME': BASE_DIR / 'db.sqlite3',
    }
}
STATIC_URL = '/static/'
MEDIA_URL = '/images/'
STATICFILES_DIRS = [os.path.join(BASE_DIR, 'static'), ]
print(STATICFILES_DIRS)
STATIC_ROOT = os.path.join(BASE_DIR, 'static')
MEDIA_ROOT = os.path.join(BASE_DIR, 'static/images')
print(STATIC_ROOT)

3. Changes in url.py file

The Media root and document root variable need to be instantiated inside the url.py file as below. The changes for the url.py file are mentioned below.

url.py:

from django.contrib import admin
from django.urls import path
from django.conf.urls import url
from matrimony_pages import views
from django.conf import settings
from django.conf.urls.static import static
urlpatterns = [
    url(r'^$',views.Welcome_page,name='Welcome_page'),
    url(r'Mainpage/',views.Main_page,name='Main_page'),
    url(r'form/',views.form_view,name='form_view'),
    url(r"signup/", views.Sign_up_request, name="register"),
    url(r"login/", views.login_request, name="login"),
    path(r'profile//',views.profile_page,name='profile'),
    url(r'logout/',views.logout_request,name='logout'),
    url(r'reg/',views.profile_reg_user,name='reg'),
    path(r'update//',views.form_update,name='update'),
    path('admin/', admin.site.urls),
]+ static(settings.MEDIA_URL,document_root=settings.MEDIA_ROOT)

4. Create a view for the form

The integer value when submitted has to be stored and when retrieved it has to be pulled from the database. This can be achieved by means of the object created for the model. The process of doing this is explained in the below given views.py section.

views.py

@login_required
def profile_page(request,pk):
      context2 = {}
      Key_details = Bride.objects.get(id=pk)
      Profile_name =  Key_details.name
      Profile_Age =  Key_details.age
      Profile_Thegai =  Key_details.thegai
      Profile_state =  Key_details.State
      Profile_district =  Key_details.District
      Profile_Address =  Key_details.Address
      Profile_Phone =  Key_details.Phone
      Profile_Profession =  Key_details.profession
      Profile_Salary =  Key_details.salary
      Profile_UG =  Key_details.Under_Graduation_Degree
      Profile_UGC =  Key_details.Under_Graduation_college
      Profile_PG =  Key_details.Post_Graduation_Degree
      Profile_PGC =  Key_details.Post_Graduation_college
      Profile_UG =  Key_details.Under_Graduation_Degree
      Profile_UGC =  Key_details.Under_Graduation_college
      Profile_PG =  Key_details.Post_Graduation_Degree
      Profile_PGC =  Key_details.Post_Graduation_college
      Profile_Rasi =  Key_details.Rasi
      Profile_Nakshatra =  Key_details.Nakshatra
      Profile_Image =  Key_details.Image
      context2['Age'] = Profile_Age
      context2['name'] = Profile_name
      context2['thegai'] = Profile_Thegai
      context2['State'] = Profile_state
      context2['district'] = Profile_district
      context2['Address'] = Profile_Address
      context2['Phone'] = Profile_Phone
      context2['profession'] = Profile_Profession
      context2['Under_Graduation_Degree'] = Profile_UG
      context2['Under_Graduation_college'] = Profile_UGC
      context2['Post_Graduation_Degree'] = Profile_PG
      context2['Post_Graduation_college'] = Profile_PGC
      context2['Rasi'] = Profile_Rasi
      context2['Nakshatra'] = Profile_Nakshatra
      context2['Image'] = Profile_Image
      print(Key_details.Creator)
      print(context2)
      return  render(request,'Profilepage.html',context2)

5. Formulate an HTML file for displaying the form

Corresponding changes to the HTML pages have to be performed.

Profilepage.html

<!DOCTYPE html>
<html style="font-size: 16px;">
<head>
<title>Profile</title>
{% load static %}
<link rel="stylesheet" href="{% static 'admin/css/Formpage.css' %}" media="screen">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1" />
<!-- Script -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"> </script>
</head>
<body class="body">
<nav class='navbar'>
<div class='navbar_div'>
<a class="navbar" onclick="redirect2()" >Home </a>
<a class="navbar" onclick="redirect2()" >Contact</a>
<a class="navbar" onclick="redirect1()" >Profiles</a>
</div>
</nav>
<div class="formarea">
<br>
{% block content %}
{% if Integer %}
<img src="{{Integer.url}}"  align="right" alt="Integer" class="img-thumbnail" style="max-height:200px">
{% else %}
<img src="{% static 'admin/img/default.png' %}" align="right" alt="Integer" class="img-thumbnail" style="max-height:200px">
{% endif%}
<br></br>
<h6><strong>Name :  &nbsp&nbsp {{name}}</strong></h6>
<h6><strong>Age  :  &nbsp&nbsp {{Age}}</strong></h6>
<h6><strong>Thegai : &nbsp&nbsp {{thegai}}</strong></h6>
<h6><strong>State :  &nbsp&nbsp   {{State}}</strong></h6>
<h6><strong>district  : &nbsp&nbsp {{district}}</strong></h6>
<h6><strong>Address : &nbsp&nbsp {{Address}}</strong></h6>
<h6><strong>Phone :  &nbsp&nbsp {{Phone}}</strong></h6>
<h6><strong>profession  : &nbsp&nbsp {{profession}}</strong></h6>
<h6><strong>Under Graduation Degree : &nbsp&nbsp {{Under_Graduation_Degree}}</strong></h6>
<h6><strong>Post_Graduation_Degree : &nbsp&nbsp {{Post_Graduation_Degree}}</strong></h6>
<h6><strong>Post_Graduation_college : &nbsp&nbsp {{Post_Graduation_college}}</strong></h6>
<h6><strong>Rasi  : &nbsp&nbsp  {{Rasi}}</strong></h6>
<h6><strong>Nakshatra : &nbsp&nbsp {{Nakshatra}}</strong></h6>
{% endblock content %}
</div>
<script>
function form1() {
window.location.href = "http://127.0.0.1:8000/form";
}
function redirect1() {
window.location.href = "http://127.0.0.1:8000/Mainpage";
}
function redirect2() {
window.location.href = "http://127.0.0.1:8000/";
}
function redirect3() {
window.location.href = "http://127.0.0.1:8000/profile";
}
</script>
</body>
</html>

Output:

Conclusion

This article portrays in what way the Integer field can be docilely professed in a Django setup and the variations can be rendered to an html page with the integer value getting displayed onto the page at the needed position. The process also mentions the settings.py file changes and the other changes which are needed to render these integer fields.