Skip to Main Content
Learning Flask Framework
book

Learning Flask Framework

by Matt Copperwaite, Charles Leifer
November 2015
Beginner content levelBeginner
250 pages
5h 16m
English
Packt Publishing
Content preview from Learning Flask Framework

Saving and modifying tags on posts

We have covered how to save and modify tags on our entries. One of the most common approaches to managing tags is to use a comma-separated text input, so we might list the tags as Python, Flask, Web-development. With WTForms this seems pretty straightforward, since we would just use a StringField. The fact that we are dealing with a database relationship, though, means that at some point we need to do some processing to convert between Tag models and a comma-separated string.

While there are many ways we could accomplish this, we will implement a custom field class TagField, which will encapsulate all the logic for translating between comma-separated tag names and Tag model instances.

Tip

Another option would be ...

Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

Flask Framework Cookbook - Second Edition

Flask Framework Cookbook - Second Edition

Shalabh Aggarwal
Flask Framework Cookbook

Flask Framework Cookbook

Shalabh Aggarwal

Publisher Resources

ISBN: 9781783983360Supplemental Content