Solving the Issue of Persistent Forms in Symfony 6

Discover how to create a reusable form in Symfony 6 that appears on every page without redundancy. Learn the essential modifications to make your form submit correctly.
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This video is based on the question https://stackoverflow.com/q/75928741/ asked by the user 'seba66500' ( https://stackoverflow.com/u/19692841/ ) and on the answer https://stackoverflow.com/a/75929584/ provided by the user 'seba66500' ( https://stackoverflow.com/u/19692841/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Create a Persistent Form in Symfony 6

Creating a consistent user experience across your website often requires repeating elements, such as forms. However, if you're using Symfony 6 and want a search form to appear on every page without duplicating code, you might encounter some hiccups. Let’s break down how to effectively create a form that appears on your navigation bar on each page without rewriting it in every controller.

The Problem

You may have a scenario where you want a search form to be displayed on every page of your Symfony application, ideally in the navigation bar. The traditional approach would require you to duplicate the form code in every route, leading to increased maintenance effort.

In this case, you attempted to create a function that generates the form dynamically and include it in your base.html.twig file. However, upon submission, the expected actions did not get executed, which led to a frustrating page refresh without redirection to the search results.

Understanding the Existing Code

To get a clearer picture, let's look at your existing code:

base.html.twig

This file is supposed to include the search form across all pages:

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

The searchForm Function

This method is intended to handle the form's creation and submission:

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

The Twig Template for the Form

The corresponding Twig template for rendering the form looks like this:

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

searchResults Function

This function handles the display of the search results once the form is submitted:

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

The Solution

Thanks to community feedback, specifically Cerad's comment, you're now equipped to resolve the form submission issue. Here are the steps to modify your code accordingly:

Step 1: Update the searchForm Function

You need to associate this function with a route so that Symfony knows how to handle requests for the form itself. Add the following annotation at the top of your searchForm function:

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

Step 2: Modify the Form Action in the Twig Template

You need to update the template where the form is defined. This change instructs your form to submit its data to the correct route (the search results route), using a GET method. Update this line:

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

Conclusion

By implementing these changes, you should now have a fully functional search form that appears on every page of your Symfony 6 application without redundant code. This approach keeps your codebase clean, enhances maintainability, and improves user experience.

Happy coding! If you need any further assistance, don't hesitate to reach out for support!

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