1. Tell me about this book, the explanation is very detailed, and the content selection is enough to get started with Django.
2. A few points to note when studying this book:
<1>If you want to follow the code of this book, you must install: Django version 1.10.1 (of course you can also play the new version of Django2, some parts in the middle need to be solved by yourself) and the following:
sudo pip3 install django==1.10.1
sudo pip3 install pytz
sudo pip3 install django-password-reset
sudo pip3 install redis
sudo pip3 install Markdown
sudo pip3 install Pillow
sudo pip3 install sorl-thumbnail
sudo pip3 install django-braces
sudo pip3 install awesome-slugify
<2> The source code download address of this book: https://github.com/qiwsir/DjangoPracticeProject
Let's talk about the source code: if it is installed according to <1>, there will be basically no problem with the imported package, because this project is developed for Django1.10.
where the basics are wrong
>1 login.html
in source code
<p style="margin-top:10px">Forgot your password? <a href="{% url 'pwd_reset' %}">reset password</a></p>
</div>
改为如下：
<p style="margin-top:10px">Forgot your password? <a href="{% url 'pwd_reset:password_reset_recover' %}">reset password</a></p>
</div>
>2 This error is a database problem error: when creating a many-to-one relationship, you need to add on_delete=models.CASCADE to the second parameter of Foreign. This is a cascading delete in the primary and foreign relationship keys , that is, when deleting When the data of the main table is deleted, the data from the table is also deleted along with it.
models in the account application
user = models.OneToOneField(User, unique=True, on_delete=models.CASCADE)
user = models.OneToOneField(User, unique=True, on_delete=models.CASCADE)
models in the article app
user = models.ForeignKey(User, related_name='article_column', on_delete=models.CASCADE)
author = models.ForeignKey(User, related_name="tag", on_delete=models.CASCADE)
models in a blog application
author = models.ForeignKey(User, related_name='blog_posts', on_delete=models.CASCADE)
models in the course application
user = models.ForeignKey(User, related_name='lesson_user', on_delete=models.CASCADE)
course = models.ForeignKey(Course, related_name='lesson', on_delete=models.CASCADE)
models in the image app
user = models.ForeignKey(User, related_name="images", on_delete=models.CASCADE)
<3> After modification, run python manage.py makemigrations to create a data table
Run python manage.py migrate to create the database
<4> According to the above modification, the source code can be run
Python manage.py runserver
Of course, if you want to enter the background management, you need to create a super administrator yourself
python manage.py createsuperuser