opensourcepos/app/Models/PluginConfig.php

<?php

namespace App\Models;

use CodeIgniter\Model;

class PluginConfig extends Model
{
    protected $table = 'plugin_config';
    protected $primaryKey = 'key';
    protected $useAutoIncrement = false;
    protected $useSoftDeletes = false;
    protected $allowedFields = [
        'key',
        'value'
    ];

    public function exists(string $key): bool
    {
        $builder = $this->db->table('plugin_config');
        $builder->where('key', $key);

        return ($builder->get()->getNumRows() === 1);
    }

    public function getValue(string $key): ?string
    {
        $builder = $this->db->table('plugin_config');
        $query = $builder->getWhere(['key' => $key], 1);

        if ($query->getNumRows() === 1) {
            return $query->getRow()->value;
        }

        return null;
    }

    public function setValue(string $key, string $value): bool
    {
        $builder = $this->db->table('plugin_config');

        if ($this->exists($key)) {
            return $builder->update(['value' => $value], ['key' => $key]);
        }

        return $builder->insert(['key' => $key, 'value' => $value]);
    }

    public function getPluginSettings(string $pluginId): array
    {
        $builder = $this->db->table('plugin_config');
        $builder->like('key', $pluginId . '_', 'after')
                ->notLike('key', $pluginId . '__', 'after');
        $query = $builder->get();

        $settings = [];
        $prefix = $pluginId . '_';
        foreach ($query->getResult() as $row) {
            $key = str_starts_with($row->key, $prefix)
                ? substr($row->key, strlen($prefix))
                : $row->key;
            $settings[$key] = $row->value;
        }

        return $settings;
    }

    public function deleteKey(string $key): bool
    {
        $builder = $this->db->table('plugin_config');
        return $builder->delete(['key' => $key]);
    }

    public function deleteAllStartingWith(string $prefix): bool
    {
        $builder = $this->db->table('plugin_config');
        $builder->like('key', $prefix, 'after');
        return $builder->delete();
    }

    public function batchSave(array $data): bool
    {
        $this->db->transBegin();

        foreach ($data as $key => $value) {
            if (!$this->setValue($key, $value)) {
                $this->db->transRollback();
                return false;
            }
        }

        $this->db->transCommit();
        return true;
    }

    public function getAll(): array
    {
        $builder = $this->db->table('plugin_config');
        $query = $builder->get();

        $configs = [];
        foreach ($query->getResult() as $row) {
            $configs[$row->key] = $row->value;
        }

        return $configs;
    }
}