Django learning---models module and database migration of Day1-app application

    On the basis of the first three summaries, a stu application app is recreated here, and the models module is analyzed and the code is organized

content

• Creation of stu
• Configuration of models in stu
• data migration
• perform migration

Creation of stu

For the detailed method, see the creation of myapp in the previous article. It is exactly the same as myapp, but it is a different application, side by side with each other, with different names.

Configuration of models in stu

That is, it is equivalent to creating a class under the models module and defining different methods under the class
from django.db import models

class Student(models.Model):

s_name = models.CharField(max_length=20)
s_gender = models.BooleanField()

class Meta:
    db_table = 'stu'

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database migration

1. The name of the database has been defined in the previous settings
2. Principle: Generate database files
3. Generate migration files
Command : python manage.py makemigrations

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Perform database migration

1. On the basis of the previous step, execute the following command to migrate files.
2. Principle: Migrate data to the database
3. Complete the migration task
Command : python manage.py migrate