django-docs-by-ajay

Hi there, this is easy Django docs with small code snippets which is very helpful to understand whole Django :) Thanks.

project structure

[projectname]/ # main project '''personal_portfolio'''
├── [projectname]/ # subfolder '''personal_portfolio'''
│   ├── __init__.py
│   ├── settings.py
│   ├── urls.py
│   └── wsgi.py
├── [projectname]/ # this folder is for templating the project '''projects'''
│   │   [migrations] # migrations file goes inside this folder
│   │   [static] # all asstes will goes here, like imgs, css,js
│   │   [templates]
│   │     ├──project_detail.html
│   │     ├──project_index.html
│   ├──__init__.py
│   ├──admin.py
│   ├──apps.py
│   ├──models.py
│   ├──tests.py
│   ├──urls.py
│   └── views.py
├── [templates]/
│   ├──base.html # define here your layout, so you can extends it in every file.
└── manage.py

how to set mysql database to django

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.mysql',
        'NAME': 'portfolio', #database name will be here
        'USER': 'root', # user name here
        'PASSWORD': '', # password here
        'HOST': 'localhost',
        'PORT': '3306',
    }
}

manage static files

{% load static %} - first add this in top of the file <img src="{% static "my_app/example.jpg" %}" alt="My image"> - then you will get direct access to the static directory

create models and migrations

from django.db import models

class Project(models.Model): # create a function
    title = models.CharField(max_length=100) # then add fields
    description = models.TextField()
    technology = models.CharField(max_length=20)
    image = models.FilePathField(path="/img")

handel routes in django

main project

from django.contrib import admin
from django.urls import path, include

urlpatterns = [
    path('admin/', admin.site.urls),
    path("projects/", include("projects.urls")),
]

html templates

from django.urls import path
from . import views

urlpatterns = [
    path("", views.project_index, name="project_index"),
    path("/", views.project_detail, name="project_detail"),
]

html templates views

• Create your views here.

from django.shortcuts import render
from projects.models import Project

• show all portfolio page.

def project_index(request): #define the function with request
    projects = Project.objects.all() # get all data in projects
    context = {
        'projects': projects
    }
    return render(request, 'project_index.html', context) # return context as parameters to project_index.html view

• show detail portfolio

def project_detail(request, pk): #define function with request and primary key
    project = Project.objects.get(pk=pk) # here get the project data by primary key
    context = {
        'project': project
    }
    return render(request, 'project_detail.html', context) # return context as project data to the html

base layout file to extend in all project

  
    
    
    
    # load static here so you can use static assets
    {% load static %} 
    # Bootstrap CSS
    

    <title>Hello, world!</title>
  
  
    # you page content will go inside body
    {% block page_content %}{% endblock %}

    # Optional JavaScript 
    
  

if we create new app, then we have defined it in INSTALLED_APPS'''

Application definition

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'projects', #like here I have defined projects
]

once we create template layout file, then we have to give that path in DIRS -

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': ["templates"], # here add templates path, so you can extends layout file direct in any file
    },
]

got this error - Error loading MySQLdb Module 'Did you install mysqlclient or MySQL-python

-> pip install pymysql

Then, edit the init.py file in your project origin dir(the same as settings.py)

import pymysql

pymysql.install_as_MySQLdb()