Second-hand recycling website developed by PHP provides after-sales service evaluation function

The second-hand recycling website developed by PHP provides after-sales service evaluation function

With the continuous expansion of the second-hand trading market, the importance of second-hand recycling websites has become increasingly prominent. In order to provide a better user experience, second-hand recycling websites not only need to provide convenient and fast second-hand item transaction services, but also need to provide after-sales service evaluation functions. This article will introduce how to use PHP to develop a second-hand recycling website and add an after-sales service evaluation function.

First of all, we need to build a basic second-hand recycling website. To simplify the development process, we use the PHP framework Laravel to build the website. Create a Laravel project named "Recycle" and create a model named "Item" to represent used items.

The command to create the "Item" model is as follows:

php artisan make:model Item

Next, we need to create a table named "items" in the database to store information about second-hand items. In Laravel, database migration is a way of managing the structure of the database. We create a database migration named "create_items_table" using the following command:

php artisan make:migration create_items_table --create=items

Open the generated migration file and we can define the fields of the "items" table:

use IlluminateSupportFacadesSchema;
use IlluminateDatabaseSchemaBlueprint;
use IlluminateDatabaseMigrationsMigration;

class CreateItemsTable extends Migration
{
    public function up()
    {
        Schema::create('items', function (Blueprint $table) {
            $table->bigIncrements('id');
            $table->string('name');
            $table->text('description');
            // 在此处添加其他字段
            $table->timestamps();
        });
    }

    public function down()
    {
        Schema::dropIfExists('items');
    }
}

Next, run the following Command to execute database migration:

php artisan migrate

At this point, we have created a simple second-hand recycling website. Now, we need to add the function of after-sales service evaluation.

First, we add a field named "rating" to the "items" table to store users' evaluations of after-sales service. Update the database migration file as follows:

use IlluminateSupportFacadesSchema;
use IlluminateDatabaseSchemaBlueprint;
use IlluminateDatabaseMigrationsMigration;

class CreateItemsTable extends Migration
{
    public function up()
    {
        Schema::create('items', function (Blueprint $table) {
            $table->bigIncrements('id');
            $table->string('name');
            $table->text('description');
            $table->integer('rating')->nullable(); // 添加评价字段
            $table->timestamps();
        });
    }

    public function down()
    {
        Schema::dropIfExists('items');
    }
}

Next, update the "Item" model and add a "rate()" method to evaluate the after-sales service:

namespace App;

use IlluminateDatabaseEloquentModel;

class Item extends Model
{
    protected $fillable = ['name', 'description', 'rating'];

    // 添加评价方法
    public function rate($rating)
    {
        $this->rating = $rating;
        $this->save();
    }
}

Now, we can control Evaluate the after-sales service in the device. Suppose we have a controller named "ItemController" in which the "rate()" method accepts request parameters and saves the rating to the database:

namespace AppHttpControllers;

use AppItem;
use IlluminateHttpRequest;

class ItemController extends Controller
{
    public function rate(Request $request, Item $item)
    {
        $item->rate($request->input('rating'));
        return response()->json(['message' => '评价成功']);
    }
}

Finally, we need to add a rating to the front-end web page box, after the user evaluates the after-sales service, submit the evaluation to the "rate()" method. The following is a simple front-end example:

<form action="/items/{{ $item->id }}/rate" method="post">
    @csrf
    <input type="text" name="rating" placeholder="评价">
    <button type="submit">提交评价</button>
</form>

So far, we have successfully implemented a second-hand recycling website developed using PHP and added an after-sales service evaluation function. Users can evaluate the after-sales service on the website and save the evaluation to the database. Through the above sample code, we can use PHP to develop a fully functional second-hand recycling website to provide users with a better user experience.

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