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Learn how to use the `old()` function in Laravel Blade to keep select options chosen after form submission. Follow our step-by-step guide for clear implementation.
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How to Keep Select Selected with the old() Function in Laravel Blade

When working with forms in Laravel, it's common to want the user's selections to persist after submission, especially if there are validation errors or the form needs to refresh. In this guide, we’ll explore how to keep a selected option in a <select> element using Laravel's powerful old() function facilitated through Blade templates.

The Problem

Imagine you have a search form that includes a select dropdown. You need the option the user previously selected to remain checked even after submitting the form (which could lead to a refresh or validation error). The common approach is using Laravel's old() function, but you might run into issues if it's implemented incorrectly.

Your Current Approach

You attempted to use the old() function in a loop like this:

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

However, this setup causes all options to have the same value, which leads to the last element being selected instead. So, what can be done to ensure the user's selection remains intact?

The Solution

The issue lies in how you're setting the value of each <option>. Instead of setting it to old('conta_id'), it should reflect the actual ID of each $conta.

Here’s how you can correctly implement this:

Adjusted Code

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

Breakdown of the Fix

Correct Value Assignment: Rather than setting the option's value to old('conta_id'), assign it to {{ $conta->id }}. This means each option has the correct value associated with it.

Using the old() Function Properly: In the selected condition, you still check if old('conta_id') is equal to $conta->id. If it matches, that specific option will remain selected after form submission.

What Happens Now?

With these changes:

Each dropdown option represents a distinct ID from your $contas collection.

When the form is submitted and returns a validation error, or when it simply refreshes, the selected option will correctly reflect the choice made by the user.

Conclusion

Using Laravel's old() function effectively allows better user experience by retaining form input values on refresh or validation failure. By ensuring each <option> accurately reflects its own unique value, you create a robust and user-friendly form.

Now you can implement this structure in your Laravel applications with confidence, ensuring that user selections stay persistent!

Remember, when working with forms:

Always ensure that each input has a unique value.

Leverage Laravel's validation features to provide smooth feedback to users.

Feel free to reach out in the comments below if you have any questions or need further assistance with Laravel Blade!