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Taiwo Kareem edited this page Apr 15, 2021 · 1 revision

Django Simplify

Introduction

Django simplify provides Ruby on Rails-like command line functionalities, models and helper functions so you can focus on development and removes the pain of repeating frequent actions.

Requirements

  • Python 3.6 and above
  • Django (tested with 3.1, probably works with any version that supports Python 3)

Installation

django-simplify can be installed via pip.

$ pip install django-simplify

Then just add simplify to your INSTALLED_APPS.

Below are several example commands you can run.

$ python manage.py create_app <app_name>

Features

  • timestamp for every model
  • alphabetic filter for admin
  • model, view, template and url route generator
  • automatic import

Helper models

  • simplify.helpers.model_helper.TimeBasedModel

    • Provides the created_at and updated_at fields for timestamp
  • simplify.helpers.model_helper.NamedTimeBasedModel

    • Provides the name, created_at and updated_at fields.
  • simplify.helpers.admin_helper.AlphaNumericFilterAdmin

    • when subclassed, it allows the items to be filtered alphabetically by either A-Z or 0-9
    • Note: for this to work, you must specify values for alphanumeric_filter in the model admin.

Usage

# models.py
from simplify.helpers.model_helper import TimeBasedModel, NamedTimeBasedModel

class MyModel(TimeBasedModel):
    extra_fields = ....
# admin.py
from simplify.helpers.admin_helper import AlphaNumericFilterAdmin

class MemberAdmin(AlphaNumericFilterAdmin):
    alphanumeric_filter = ["first_name", "last_name", 'age'] # this part is what creates the filter
    list_filter = ['age']
    list_display = ['first_name', 'last_name',]

Management commands

1. create_app

  • automatically adds a urls.py file after app is created.
  • adds newly created app in the settings.py file under INSTALLED_APPS
  • creates index, edit, create and detail view and respective templates
  • adds the app route to your project's urls.py file

Usage

$ python manage.py create_app <app_name>

2. create_model

Creates a model and their respective fields. the following types maps to respective Django model fields. It will also add the app to the django admin too.

  • 121, o2o or set -> OneToOneField
  • bool -> BooleanField
  • date -> DateField
  • datetime or dt -> DateTimeField
  • dict or m2m -> ManyToManyField
  • email -> EmailField
  • file -> FileField
  • list or fk -> ForeignKey
  • float -> FloatField
  • dec -> DecimalField
  • img or image -> ImageField
  • int -> IntegerField
  • str or char -> CharField
  • txt or text -> TextField

Usage

$ python manage.py create_app <app_name> <model_name> field_name:type field_name:type ... 

an example

$ python manage.py create_app member Member first_name:text last_name:text age:int

will generate the following code in the member/models.py file

class Member(TimeBasedModel):
    first_name = models.CharField(max_length=50)
    last_name = models.CharField(max_length=50)
    age = models.IntegerField(default=0)

    def __str__(self):
        return self.first_name

note The command uses the first specified field as the __str__ default.

Specifying relationships

Specifying ForeignKey, OneToOneField or ManyToManyField is quite easy. just add an =<related_model>. See example

$ python manage.py create_app <app_name> <model_name> field_name:type=related_model

if the related model is in the same models.py file, specify it as app_name.Model

$ python manage.py create_app author Author name:char books:fk=Book # or   
$ python manage.py create_app author Author name:char books:fk=author.Book 

if in a different app. (say book model), obviously you should be able to substitute fk with m2m, o2o, 121

$ python manage.py create_app author Author name:char books:fk=book.Book 

will create the following

class Author(TimeBasedModel):
    name = models.CharField(max_length=50)
    books = models.ForeignKey('book.Book', on_delete=models.CASCADE)

    def __str__(self):
        return self.name

3. create_view

Creates a view, generate its respective template and adds the path in the urls.py file

Usage

$ python manage.py create_view <app_name> <view_name> 

example

$ python manage.py create_view member MemberDetail

Todo

  • add more helper functions
  • add documentation

Note: This is still in early development mode. might have bugs. It works fine if you write good code and follow the django style of development. Please fork the project to make contributions

Acknowledgements

I'd like to say a big thank you to God without which this wouldn't be possible. I would also like to say thanks to everyone who has and will contribute to this in the future.