7: Working with Images

Activity 11: Implementing the Recipe Cover Image Upload Function

Solution

1. Add the cover_image attribute to the User model in models/recipe.py:

   cover_image = db.Column(db.String(100), default=None)

   The cover_image attribute will contain the image filename as a string, with a maximum length of 100 characters.

2. Use the flask db migrate command to generate a database table update script:

   flask db migrate

   You will see that a new column, 'recipe.cover_image', has been detected:

   INFO  [alembic.runtime.migration] Context impl PostgresqlImpl.
   INFO  [alembic.runtime.migration] Will assume transactional DDL.
   INFO  [alembic.autogenerate.compare] Detected added column 'recipe.cover_image'
     Generating /TrainingByPackt/Python-API-Development-Fundamentals/Lesson07/smilecook/migrations/versions/91c7dc71b826_.py ... done

3. Check the script at /migrations/versions/xxxxxxxxxx_.py:

   """empty message...