views

making simple functional view

in my_app folder inside views.py add

# index() ==> Hello World
def index(request):
	return HttpResponse("Hello World")

and import HttpResponse form django.shortcuts with adding it to first line like below

from django.shortcuts import render,HttpResponse

[!INFO] what it do? we get client request and then we response with text hello_world, note that we use HttpResponse so we can use text to answer client and request is what we get from client

urls

add simple url

first import your view like this

from my_app.views import index

go to config or your project folder inside of url.py file route to home like this

# my_site.com/ ==> index() 
urlpatterns = [
	path('',index),
]

[!INFO] urls are used to route requests to views for checking witch view we call we use urlpatterns list

[!info] its better to add / to end of path , example: about or about/ both fire same view

dynamic routing

when we want to load pages base on variables we send variables from urls ==> views/functions and it will produce our page base on variables

Example : we send name of person in url and it say hello to them

for this first we want to get person name from url

send variable from urls

first we send variable to view we want (we can first make url or view it doesn't matter)


from my_app.views import hello

# path ('adreess_you_want/<type_of_variable:variable>/',name_of_view)
# my_site.com/hellome/first_name ==> hello(first_name) 
urlpatterns = [
	path('hellome/<str:first_name>',hello),
]

receive variable in views

inside views.py we add this

def hello(request,first_name):
	return HttpResponse(f"Hello {first_name}")

using templates

inside views.py we use render function like this

app level template

def hello(request):
	return render(request,"my_project/home.html")

inline variables

def hello(request):
	return render(request,"my_project/home.html",{'my_var':'bar' })

context

def hello(request):
	context:{
		movies:["avatar,matrix,spider-man"]
	}
	return render(request,"my_project/home.html",context)

url variables ???

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