[python] What is the easiest way to clear a database from the CLI with manage.py in Django?

I am using Django to build a website with MySQL. Now as I am learning so I need to change the Model very often so I want that all tables get cleared and new table get created.

But syncdb doesn't touch existing tables. Is there any better way to handle this problem?

This question is related to python mysql django django-1.3

The answer is


Quickest (drops and creates all tables including data):

./manage.py reset appname | ./manage.py dbshell

Caution:

  • Might not work on Windows correctly.
  • Might keep some old tables in the db

I think Django docs explicitly mention that if the intent is to start from an empty DB again (which seems to be OP's intent), then just drop and re-create the database and re-run migrate (instead of using flush):

If you would rather start from an empty database and re-run all migrations, you should drop and recreate the database and then run migrate instead.

So for OP's case, we just need to:

  1. Drop the database from MySQL
  2. Recreate the database
  3. Run python manage.py migrate

You can use the Django-Truncate library to delete all data of a table without destroying the table structure.

Example:

  1. First, install django-turncate using your terminal/command line:
pip install django-truncate
  1. Add "django_truncate" to your INSTALLED_APPS in the settings.py file:
INSTALLED_APPS = [
    ...
    'django_truncate',
]
  1. Use this command in your terminal to delete all data of the table from the app.
python manage.py truncate --apps app_name --models table_name

Using Django Extensions, running:

./manage.py reset_db

Will clear the database tables, then running:

./manage.py syncdb

Will recreate them (south may ask you to migrate things).


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What is the easiest way to clear a database from the CLI with manage.py in Django?