cli.py 文件源码

def markdown_db_migrate():
    '''Perform a migration of the app long descriptions from HTML to
    Markdown for existing database records'''
    with app.app_context():
        query = 'SELECT id, long_description FROM "app";'
        query_result = db.engine.execute(query)
        old_descriptions = query_result.fetchall()
        for old_desc in old_descriptions:
            if old_desc.long_description:
                new_description = html2text(old_desc.long_description)
                query = text('''
                           UPDATE app SET long_description=:long_description
                           WHERE id=:id''')
                db.engine.execute(query, long_description = new_description, id = old_desc.id)