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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | namespace App\Infrastructure\Shared\Query; |
| 6 | |
| 7 | use App\Domain\Shared\Query\GridQuerySpecification; |
| 8 | use Yiisoft\Db\Connection\ConnectionInterface; |
| 9 | use Yiisoft\Db\Query\Query; |
| 10 | |
| 11 | class GridQueryBuilder |
| 12 | { |
| 13 | public function __construct( |
| 14 | private ConnectionInterface $db |
| 15 | ) {} |
| 16 | |
| 17 | /** |
| 18 | * Checks whether a database table exists in the current connection schema. |
| 19 | */ |
| 20 | public function tableExists(string $tableName): bool |
| 21 | { |
| 22 | $rawName = str_replace(['{{%', '}}', '`'], '', $tableName); |
| 23 | $schema = $this->db->getSchema(); |
| 24 | return $schema->getTableSchema($rawName) !== null; |
| 25 | } |
| 26 | |
| 27 | /** |
| 28 | * Executes a database-engine agnostic query with pagination, per-column filtering, and sorting using Yii3 Query builder. |
| 29 | * Compatible across MySQL, PostgreSQL, SQLite, SQL Server, and Oracle. |
| 30 | * |
| 31 | * @param string $tableName Primary table name (e.g. '{{%hosts_records}}' or 'c01_menu_records') |
| 32 | * @param GridQuerySpecification $spec Specification containing pagination, sorting, and filters |
| 33 | * @param string $defaultSortField Default column to sort by if none specified |
| 34 | * @param string $defaultSortDirection Default sort direction ('ASC' or 'DESC') |
| 35 | * @return array{items: array<int, array<string, mixed>>, totalCount: int, tableExists?: bool, tableName?: string} |
| 36 | */ |
| 37 | public function fetchData( |
| 38 | string $tableName, |
| 39 | GridQuerySpecification $spec, |
| 40 | string $defaultSortField = 'created_at', |
| 41 | string $defaultSortDirection = 'DESC' |
| 42 | ): array { |
| 43 | $rawName = str_replace(['{{%', '}}', '`'], '', $tableName); |
| 44 | |
| 45 | if (!$this->tableExists($tableName)) { |
| 46 | return [ |
| 47 | 'items' => [], |
| 48 | 'totalCount' => 0, |
| 49 | 'tableExists' => false, |
| 50 | 'tableName' => $rawName, |
| 51 | ]; |
| 52 | } |
| 53 | |
| 54 | $allowedColumns = $spec->getAllowedColumns(); |
| 55 | $query = (new Query($this->db))->from($tableName); |
| 56 | |
| 57 | // Apply per-column search filters in a multi-db safe way |
| 58 | foreach ($spec->getFilters() as $column => $searchTerm) { |
| 59 | $sqlColumn = $allowedColumns[$column] ?? $column; |
| 60 | $query->andWhere(['like', $sqlColumn, $searchTerm]); |
| 61 | } |
| 62 | |
| 63 | // Count total matching records before applying pagination (using a cloned query instance) |
| 64 | $countQuery = clone $query; |
| 65 | $totalCount = (int) $countQuery->count(); |
| 66 | |
| 67 | // Apply sorting |
| 68 | $sortField = $spec->getSortField(); |
| 69 | $sortDirection = $spec->getSortDirection() === 'DESC' ? SORT_DESC : SORT_ASC; |
| 70 | |
| 71 | if ($sortField !== null && isset($allowedColumns[$sortField])) { |
| 72 | $orderByColumn = $allowedColumns[$sortField]; |
| 73 | $query->orderBy([$orderByColumn => $sortDirection]); |
| 74 | } else { |
| 75 | $defaultCol = $allowedColumns[$defaultSortField] ?? $defaultSortField; |
| 76 | $defaultDir = $defaultSortDirection === 'DESC' ? SORT_DESC : SORT_ASC; |
| 77 | $query->orderBy([$defaultCol => $defaultDir]); |
| 78 | } |
| 79 | |
| 80 | // Apply engine-agnostic LIMIT & OFFSET |
| 81 | /** @var array<int, array<string, mixed>> $items */ |
| 82 | $items = $query->limit($spec->getPageSize()) |
| 83 | ->offset($spec->getOffset()) |
| 84 | ->all(); |
| 85 | |
| 86 | return [ |
| 87 | 'items' => $items, |
| 88 | 'totalCount' => $totalCount, |
| 89 | 'tableExists' => true, |
| 90 | 'tableName' => $rawName, |
| 91 | ]; |
| 92 | } |
| 93 | } |