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Bobson Lin 8eb56111bc feat: Dear Diary Project - 9. Processing The Form 2 years ago
..
dear_diary feat: Dear Diary Project - 4 2 years ago
entries feat: Dear Diary Project - 9. Processing The Form 2 years ago
README.md feat: Dear Diary Project - 9. Processing The Form 2 years ago
manage.py feat: Dear Diary Project - 1 2 years ago

README.md

Dear Diary Project

This is notes from course.

Create Project And App

  1. Under undestanding-django directory, create project dear_diary

    $ pipenv install
    $ pipenv shell
    $ django-admin startproject dear_diary 
    
  2. Go to dear_diary directory and create app entries

    $ cd dear_diary
    $ python manage.py startapp entries
    

App Files

  • migrations - For database versioning.
  • admin.py - Register models appearing at admin dashboard.
  • models.py - Control whats save in your database.
  • tests.py - Tests for this app
  • views.py - (Render views/Response) for url

Admin Dashboard

  1. Initialize database (Default generate db.sqlite3)

    $ python manage.py migrate
       
    Operations to perform:
        Apply all migrations: admin, auth, contenttypes, sessions
        Running migrations:
        Applying contenttypes.0001_initial... OK
        Applying auth.0001_initial... OK
        Applying admin.0001_initial... OK
        Applying admin.0002_logentry_remove_auto_add... OK
        Applying admin.0003_logentry_add_action_flag_choices... OK
        Applying contenttypes.0002_remove_content_type_name... OK
        Applying auth.0002_alter_permission_name_max_length... OK
        Applying auth.0003_alter_user_email_max_length... OK
        Applying auth.0004_alter_user_username_opts... OK
        Applying auth.0005_alter_user_last_login_null... OK
        Applying auth.0006_require_contenttypes_0002... OK
        Applying auth.0007_alter_validators_add_error_messages... OK
        Applying auth.0008_alter_user_username_max_length... OK
        Applying auth.0009_alter_user_last_name_max_length... OK
        Applying auth.0010_alter_group_name_max_length... OK
        Applying auth.0011_update_proxy_permissions... OK
        Applying sessions.0001_initial... OK
    
  2. Create superuser

    $ python manage.py createsuperuser                                              
    Username (leave blank to use 'bobson'): 
    Email address: bobson.lin@aiwill.tech
    Password: 
    Password (again): 
    Superuser created successfully.
    
  3. Run project (http://127.0.0.1:8000/admin will show admin dashboard)

    $ python manage.py runserver
    
    Watching for file changes with StatReloader
    Performing system checks...
    
    System check identified no issues (0 silenced).
    June 21, 2019 - 03:24:05
    Django version 2.2.2, using settings 'dear_diary.settings'
    Starting development server at http://127.0.0.1:8000/
    Quit the server with CONTROL-C.
    

Display Templates

  1. Create templates directory for entries app
  2. Create functions(index, add) in views.py
  3. Create entries/urls.py and adjust dear_diary/urls.py
  4. Add entries app in settings.py INSTALLED_APPS section
  1. Use name argument in django.urls.path function.
  2. In template file(*.html), add {% url '[name]' %} (eg. {% url 'add' %} for /add url)

Create Entry Model

  1. Add Entry model class in models.py
  2. Register Entry model in admin.py
  3. Run command to create migration file and do migration.
    $ python manage.py makemigrations
    Migrations for 'entries':
    entries/migrations/0001_initial.py
        - Create model Entry
    
    $ python manage.py migrate
    Operations to perform:
    Apply all migrations: admin, auth, contenttypes, entries, sessions
    Running migrations:
    Applying entries.0001_initial... OK
    
  4. Check http://127.0.0.1:8000/admin

Display Entries From Database

  1. Query entries in views.index function.
  2. Use for loop in index.html template.

Creating A Form

  1. Create EntryForm in entries/forms.py.
  2. Use EntryForm in views.add function.
  3. Use form in add.html template.

Processing The Form

  1. Use EntryForm to handle POST request.
  2. Redirect after submit form.
  3. Add CSRF token in form.