Скачать или смотреть How to Query Data from Firestore Using Flask and Jinja to Display in a Web Table

Learn how to fetch data from Firestore and display it in a web table using Flask and Jinja2. This guide provides step-by-step solutions for displaying client data seamlessly.
---
This video is based on the question https://stackoverflow.com/q/73864581/ asked by the user 'Sandip Parajuli' ( https://stackoverflow.com/u/9079652/ ) and on the answer https://stackoverflow.com/a/74114209/ provided by the user 'David' ( https://stackoverflow.com/u/11594237/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: How to query data from firestore using flask and jinja and display it in Web

Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l...
The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license.

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
How to Query Data from Firestore Using Flask and Jinja to Display in a Web Table

When building a web application with data stored in Firestore, you may encounter challenges when trying to fetch and display that data correctly in a user-friendly format. In this post, we’ll cover how to retrieve client data from Firestore using Flask and Jinja2 and present it in a structured table on a webpage.

Understanding the Problem

You want to display a list of clients stored in your Firestore database on a web page. The initial setup appears correct since you can fetch all clients; however, when it comes to rendering the details within an HTML table, the data is not displayed as you expect.

Current Code Situation

You are currently fetching client data using the following code:

[[See Video to Reveal this Text or Code Snippet]]

On your HTML page, you have a setup that attempts to display the data using a Jinja loop, but it’s not rendering correctly:

[[See Video to Reveal this Text or Code Snippet]]

Solution: Updating Your Code

To fix this issue, you need to ensure you’re correctly accessing the properties of your Firestore documents. When you retrieve data from Firestore, it often comes as a DocumentSnapshot which needs to be converted into a dictionary using .to_dict().

Step-by-Step Code Update

Modify the HTML <tbody> Structure

Replace your <tbody> block with the following while ensuring you convert each client snapshot to a dictionary:

[[See Video to Reveal this Text or Code Snippet]]

Important Notes

Using .to_dict(): This method converts the DocumentSnapshot into a dictionary, allowing you to access fields directly by their names.

Alternative Access: While you can also use client_list.get("email"), it may lead to inconsistencies or issues if the field does not exist.

Conclusion

By following the above steps, you should now be able to query data from Firestore using Flask and effectively render it in a well-structured table with Jinja2. This not only enhances the user experience but also simplifies data management within your web application. If you encounter any further issues, ensure to check the browser console for any errors that may indicate what is going wrong.

Now, go ahead, update your code, fetch that data, and display it with confidence!