Need to create a drop down list in laravel, and insert the results in a new database
Stefan Bogdanescu
Founder & Senior Architect · 2026-06-29
# Mastering Dynamic Dropdowns in Laravel: Populating and Saving Data
Welcome to the world of Laravel development! As you begin building applications, one of the most fundamental tasks you’ll encounter is handling user input and dynamically populating data from your database. This guide will walk you through exactly how to implement your requirement—creating a dropdown list populated from the `users` table, displaying the selection, and saving that choice to a separate table—using core Laravel concepts.
We will tackle this by breaking down the process into three main parts: setting up the data flow (Controller), presenting the interface (View), and handling the persistence (Database interaction).
## Prerequisites: The Eloquent Foundation
Before diving into the code, ensure you have established your database structure and Eloquent Models. For this example, we assume you have two models: `User` and `SelectedUser`.
**Models Setup:**
* **`User` Model:** Represents the users in your main table.
* **`SelectedUser` Model:** Represents the linking/selection table.
The key to making this work smoothly is leveraging Eloquent relationships, which is a cornerstone of efficient data handling in Laravel. You can find excellent deep dives into mastering these relationships on the official **[laravelcompany.com](https://laravelcompany.com)** documentation.
## Step 1: The Controller Logic (Handling Data Retrieval and Submission)
The controller acts as the intermediary between your database and your view. It must handle two primary tasks: fetching the list of available users and processing the form submission.
In your `UserController`, you will need a method to fetch all users and another method to handle the POST request from the form.
```php
validate([
'selected_user_id' => 'required|integer',
]);
// 3. Retrieve the selected user ID from the request
$userId = $request->input('selected_user_id');
// 4. Insert the selection into the selected_users table
\App\Models\SelectedUser::create([
'user_id' => $userId,
// You might add other relevant fields here
]);
return redirect()->route('selection')->with('success', 'User selection saved successfully!');
}
}
```
## Step 2: The View Implementation (The Dropdown)
In your Blade view (`user_selection.blade.php`), we will use a standard HTML `