boursecu_server/app/Http/Controllers/Admin/ConstController.php

<?php

namespace App\Http\Controllers\Admin;

use App\Http\Controllers\Controller;
use App\Http\Controllers\SuperController;
use App\Models\Cnt;
use Illuminate\Http\Request;

class ConstController extends SuperController
{
    public function __construct()
    {
        parent::__construct(Cnt::class, [], ['*'], null, null, ['key']);
    }

    public function store(Request $request)
    {
        $request->merge($this->syncValueJson($request->all()));

        return parent::store($request);
    }

    public function update(Request $request, $id)
    {
        $request->merge($this->syncValueJson($request->all()));

        return parent::update($request, $id);
    }

    public function showValue($key)
    {
        $query = Cnt::where('key', $key)->orderByDesc('id');
        $columns = ['id', 'value', 'title_fa'];
        if (Cnt::hasValueJsonColumn()) {
            $columns[] = 'value_json';
        }
        $cnt = $query->first($columns);
        if (! $cnt) {
            return response()->json(null);
        }

        $value = $cnt->value;
        if (
            ($value === null || $value === '')
            && Cnt::hasValueJsonColumn()
            && is_array($cnt->value_json)
        ) {
            $value = json_encode($cnt->value_json, JSON_UNESCAPED_UNICODE);
        }

        return response()->json([
            'id' => $cnt->id,
            'value' => $value,
            'title_fa' => $cnt->title_fa,
        ]);
    }

    /**
     * ستون value_json را با JSON ذخیره‌شده در value همگام می‌کند.
     */
    private function syncValueJson(array $data): array
    {
        if (! Cnt::hasValueJsonColumn() || ! array_key_exists('value', $data)) {
            return $data;
        }

        $raw = $data['value'];
        if (is_array($raw)) {
            $data['value_json'] = $raw;
            $data['value'] = json_encode($raw, JSON_UNESCAPED_UNICODE);

            return $data;
        }

        if (is_string($raw) && $raw !== '') {
            $decoded = json_decode($raw, true);
            if (is_array($decoded)) {
                $data['value_json'] = $decoded;
            }
        }

        return $data;
    }
}