Django (4) - configure and view templates

Use basic view

Outline

In Django, the view is a web request to respond
is a view of a python function defined in views.py file.
is defined views:
Example: writing myApp \ views.py in

from django.shortcuts import render
# Create your views here.
from django.http import HttpResponse
def index(request):
return HttpResponse("Sunck is a good man")

Configuring url

Method One: path method:
urls.py modify files in the project directory:

from django.contrib import admin
from django.urls import path, include
urlpatterns = [
path('admin/', admin.site.urls),
path('', include('myApp.urls')),
]

urls.py file created in the application catalog myApp:

from django.urls import path, include
from . import views
urlpatterns = [
path('',views.index),
]

Method two: url method:
urls.py modify files in the project directory:

from django.contrib import admin
from django.conf.urls import url,include
urlpatterns = [
url(r'^admin/', admin.site.urls),
url(r'^', include('myApp.urls')),
]

urls.py file created in the application catalog myApp:

from django.conf.urls import url
from . import views
urlpatterns = [
url(r'^$', views.index),
]

The basic use of templates

Outline

Templates are HTML pages can be filled according to the data transfer from the view
create a template:
create templates directory, create a template corresponding to the directory of the project (project / templates / myApp) in the directory
template path configuration:
Modify 'DIRS' under TEMPLATES under settings.py file 'DIRS': [os.path.join (BASE_DIR, 'templates')],
is defined grades.html and students.html template:
create grades.html with students.html template files in \ myApp \ templates directory
Template Syntax:
{{output value can be a variable, or may be an object, attributes}}
{%}% executed code segment
http://127.0.0.1:8000/grades
write grades.html template:

<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport"
content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Class Information</title>
</head>
<body>
<h1>Class List</h1>
<ul>
<!--[python04, python05, python06]-->
{%for grade in grades%}
<li>
<a href="#">{{grade.gname}}</a>
</li>
{%endfor%}
</ul>
</body>
</html>

Define a view: myApp \views.py

from .models import Grades
def grades(request):
# Template to fetch data
gradesList = Grades.objects.all()
# To pass data to the template, and then render the page, the rendered page returned to the browser
return render(request, 'myApp/grades.html', {"grades": gradesList})

Configuring url: myApp \urls.py

urlpatterns = [
url(r'^$', views.index),
url(r'^(\d+)/(\d+)$', views.detail),
url(r'^grades/', views.grades)
]

Page orientation to http://127.0.0.1:8000/students
template write students.html

<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport"
content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Students page</title>
</head>
<body>
<h1>Student Information List</h1>
<ul>
{%for student in students%}
<li>
{{student.sname}}--{{student.scontend}}
</li>
{%endfor%}
</ul>
</body>
</html>

Define a view: myApp \views.py

from .models import Students
def students(request):
studentsList = Students.objects.all()
return render(request, 'myApp/students.html', {"students": studentsList})

Configuring url: myApp \urls.py

urlpatterns = [
url(r'^$', views.index),
url(r'^(\d+)/(\d+)$', views.detail),
url(r'^grades/', views.grades),
url(r'^students/', views.students),
]

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