/Let-s-Start-With-Djanog-A-Beginners-Guide-

Let's Start With Django, A Beginners Guide

Django follows MVT architecture, MVT - Model View Template Concept

1. Install django

	a. pip install django==2.2
	b. django-admin startproject <projectname> .
	c. python manage.py runserver
	d. python manage.py startapp <appname>

2. Start new project

	 Step : 1	Step : 2	Step : 3            	Step : 4
	app/views.py --> app/urls.py --> project/url.py --> project/settings.py
	
	views.py :
		
		from django.shortcut import render
		from django.http import HttpResponse
		
		Def index(request):
			Return HttpResponse("Welcome to django")
			
		
	urls.py:
	
		from django.urls import path
		from .import views
		
		urlspatterns = [
			Path('',view.index)
		]
		
	project urls.py:
	
		from django.contrib import admin
		from django.urls import path,include
		
		urlpatterns=[
			path('admin/',admin.site.urls),
			path('',include('myapp.urls')),
		]
		
	settings.py : 
	
		INSTALLED_APPS = [
			---------------------,
			---------------------,
			---------------------,
			---------------------,
			' <appname> ',
		]
		
		
3. Connecting With Database (MODEL)

	1. model.py --> views.py --> urls.py --> project/urls.py --> settings.py 
	

		model.py :
		
			from django.db import models
			
			class Student(models.Model):
			
				name = models.CharField(max_length=25)    \\
				course = models.CharField(max_length=25)   \\
	
	
		views.py :
			
			from django.shortcuts import render
			from .models import Student
			from django.views.generic import CreateView,ListView,DetailView,DeleteView,UpdateView

			 
			class StudentAdd(CreateView):              \\
				model = Student                         \\
				fields = ['name','course']              \\
				success_url = '/'                       \\
				                                      \\
			class StudentList(ListView):                \\
				model = Student                          \\
			
			class StudentDetails(DetailView):
				model = Student
			
			class StudentUpdate(UpdateView):
				model = Student
				fields = ['name','course']
				success_url = '/'
			
			class StudentDelete(DeleteView):
				model = Student
				success_url = '/'
				
			
		urls.py :
		
			from django.urls import path
			from.views import StudentAdd,StudentDetails,StudentList,StudentUpdate,StudentDelete
			
			urlpattern = [
			
				path('add/',StudentAdd.as_view()),
				path('list/',StudentList.as_view()),
				path('<int:pk>',StudentDetails.as_view()),
				path('update/<pk>',StudentUpdate.as_view()),
				path('delete/<pk>',StudentDelete.as_view()),
			]
			
			
		project/urls.py :
			
			from django.contrib importadmin
			from django.urls importpath, include
			
			urlpatterns = [
				path('admin/',admin.site.urls),
				path('', include('student.urls')),
			]
			
			
		project/settings.py :
		
			INSTALLED_APPS=[
				'django.contrib.admin',
				'django.contrib.auth',
				'django.contrib.contenttypes',
				'django.contrib.sessions',
				'django.contrib.messages',
				'django.contrib.staticfiles',
				'student',
			]
			
			
	2. create new directory "template" --> 

		inside "template" create new directory (directory name = app name) -->

			inside new directory --> write html files
			
			
				Student_form.html
				
				Student_list.html              -               (list all records)
				
				Student_details.html        -         (to get a particular record)
				
				Student_Confirm_delete.html
			
	
			
			
	3. Migrate 

		!--cmd --!   #in terminal
		
				python manage.py makemigrations
				
				-->
				
					python manage.py migrate
				
					-->
				
						python manage.py runserver
						
						
						
						
4. Admin creation and connection

	1. admin.py 
	

		from django.contrib import admin
		from .models import Student
		
		#Register your model shere.
		
		class StudentAdmin(admin.ModelAdmin):
			list_display = ('name','course')
			search_fields = ('name','course')
		
		admin.site.register(Student,StudentAdmin)
	
	
			
		§ !--cmd--!     #in terminal
		
	
			python manage.py createsuperuser
			
				-->
				
					python manage.py runserver

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