Fat Models – A Django Code Organization Strategy | Hacker News
Fat models are slightly better than having that crud in your views, but they're still an antipattern. Models should describe the relationships between entities in your business, not be the junk drawer for stuff that doesn't go anywhere else.Fat models are already a code smell, but passing the request object to your model should really set off alarm bells. You've now made it extremely messy to use
Separation of business logic and data access in django
I am writing a project in Django and I see that 80% of the code is in the file models.py. This code is confusing and, after a certain time, I cease to understand what is really happening. Here is what bothers me: I find it ugly that my model level (which was supposed to be responsible only for the work with data from a database) is also sending email, walking on API to other services, etc. Also, I
Exceptions - Django REST framework
exceptions.py Exceptions Exceptions… allow error handling to be organized cleanly in a central or high-level place within the program structure. — Doug Hellmann, Python Exception Handling Techniques Exception handling in REST framework views REST framework's views handle various exceptions, and deal with returning appropriate error responses. The handled exceptions are: Subclasses of APIException
フォームやフィールドのバリデーション — Django 1.4 documentation
フォームのバリデーションは、データのクリーニングを行ったときに実行されます。 この挙動をカスタマイズしたければ、目的に応じていくつかの手法から選択するこ とになります。フォームの処理では、 3 つのデータクリーニング過程があります。 これらの過程は通常、フォームの is_valid() メソッドを呼び出したときに実 行されます。データのクリーニングとバリデーションをトリガする要素は他にもあ ります (errors 属性へのアクセスや、 full_clean() の呼び出し) が、 通常は直接用いることはありません。 一般に、データクリーニングのメソッドは、処理中のデータに何らかの問題がある 場合、 ValidationError 例外を送出し、その際 ValidationError のコン ストラクタにエラーメッセージを渡すことになっています。 ValidationError を送出しない
https://bitbucket.org/psagers/django-auth-ldap/raw/1570522648e77b1db471fd33a047870fe8b1af7f/django_auth_ldap/backend.py
# Copyright (c) 2009, Peter Sagerson # All rights reserved. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions are met: # # - Redistributions of source code must retain the above copyright notice, this # list of conditions and the following disclaimer. # # - Redistributions in binary form must reproduce the ab
Pagination - Django REST framework
pagination.py Pagination Django provides a few classes that help you manage paginated data – that is, data that’s split across several pages, with “Previous/Next” links. — Django documentation REST framework includes support for customizable pagination styles. This allows you to modify how large result sets are split into individual pages of data. The pagination API can support either: Pagination
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