[Laravel] Integrating a Model with a database in Laravel.

Trong bài này thì mình tìm hiểu các sử dụng model trong laravel để thực hiện select hoặc insert trong Laravel bằng model.

Contents

1) Set up the connection with a database.

1.1) SQLite.

Cập nhật trong .env
DB_CONNECTION=sqlite

Tiếp đến bạn kiểm tra: config/database.php

The database_path('database.sqlite') function in Laravel is a helper that returns the full path to the database directory in your Laravel project, with database.sqlite appended.

database_path('database.sqlite')

Return:

/var/www/my_project/database/database.sqlite

2) Set up the migration to create a table in the database.

Bạn cần gõ 1 command:

php artisan make:migration create_table_changing_nim_config

Tiếp đến bạn tạo các column:

<?php

use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\Schema;

return new class extends Migration
{
    /**
     * Run the migrations.
     */
    public function up(): void
    {
        Schema::create('table_changing_nim_config', function (Blueprint $table) {
            $table->id();
            $table->string('environment');
            $table->string('pool');
            $table->json('stable_config'); // JSON column to store an object
            $table->datetime('expire_at_time');
            $table->timestamps();
        });
    }

    /**
     * Reverse the migrations.
     */
    public function down(): void
    {
        Schema::dropIfExists('table_changing_nim_config');
    }
};

stable_config sẽ là dạng lưu array
expire_at_time sẽ là dạng datetime

sau đó bạn run:

php artisan migrate

Nếu bạn muốn rollback lại DB bạn có thể run câu lệnh:

php artisan migrate:rollback

3) Define the Model database.

Bạn sử dụng command:

php artisan make:model ChangingNimConfig

sau khi gõ command này bạn sẽ thấy 1 file được tạo ra:

Bạn sẽ khai báo thêm các khai báo như là $table, $primaryKey, $fillable là các column

vì data insert vào stable_config đang array nên mình có thêm:

    protected $casts = [
        'stable_config' => 'array', // Cast stable_config as an array
    ];

4) Declare the model and apply it in the controller.

Đầu tiên chúng ta khai bao sử dụng Model:

Tiếp đến trong handler:

            // Check the response status
            if ($response->getStatusCode() === 201 || $response->getStatusCode() === 200) {
                $changingNIMConfig = new ChangingNIMConfig();
                $changingNIMConfig->environment = $environment;
                $changingNIMConfig->pool = $pool;
                $changingNIMConfig->stable_config = $argocdYaml;
                $dt = Carbon::now();
                $changingNIMConfig->expire_at_time = $dt->addDays(1);
                $changingNIMConfig->save();
                //https://www.youtube.com/watch?v=xCbCEDg_qv8

                 // Redirect with success message
                return redirect()->route('pools_environment', ['environment' => $environment])
                    ->with('success', 'YAML file pushed to Bitbucket successfully!');
            } else {

Sau khi chạy lệnh kiểm tra thấy có dữ liệu trong DB là ok

Delete record database with laravel:

$changingScaleObjectK8s = ChangingScaleObjectK8s::where('environment', $environment)
    ->where('namespace', $envConfig['namespace'])
    ->get(); // This returns a collection

Đầu tiên là bạn sẽ get 1 list nào đó trong database.
để xóa các records thì bạn cần 1 loop:

$changingScaleObjectK8s = ChangingScaleObjectK8s::where('environment', $environment)
    ->where('namespace', $envConfig['namespace'])
    ->get(); // This returns a collection

foreach ($changingScaleObjectK8s as $scaleObject) {
    // Process each $scaleObject as needed, then delete it
    $scaleObject->delete();
}

Hoặc bạn có thể directly delete thông qua query:

ChangingScaleObjectK8s::where('environment', $environment)
    ->where('namespace', $envConfig['namespace'])
    ->delete(); // This deletes all matching records directly