November 2015
Beginner
250 pages
5h 16m
English
Content preview from Learning Flask FrameworkBecome 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,
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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.
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.