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| 1 | <?php |
| 2 | |
| 3 | namespace BuyerKiosk\Support; |
| 4 | |
| 5 | use \PDO; |
| 6 | use \PDOException; |
| 7 | |
| 8 | /** |
| 9 | * CategoryManager - Manager class for support categories |
| 10 | * |
| 11 | * Handles category retrieval, article counts, and management |
| 12 | * operations for the knowledge base system. |
| 13 | */ |
| 14 | class CategoryManager |
| 15 | { |
| 16 | /** |
| 17 | * @var PDO Database connection |
| 18 | */ |
| 19 | private $db; |
| 20 | |
| 21 | /** |
| 22 | * Constructor |
| 23 | * |
| 24 | * @param PDO $db Database connection (kiosk_buykiosk) |
| 25 | */ |
| 26 | public function __construct(PDO $db) |
| 27 | { |
| 28 | $this->db = $db; |
| 29 | } |
| 30 | |
| 31 | /** |
| 32 | * Get all categories |
| 33 | * |
| 34 | * @param bool $activeOnly Whether to return only active categories |
| 35 | * @return array Array of Category objects |
| 36 | */ |
| 37 | public function getAll(bool $activeOnly = false): array |
| 38 | { |
| 39 | return Category::getAll($this->db, $activeOnly); |
| 40 | } |
| 41 | |
| 42 | /** |
| 43 | * Get category by ID |
| 44 | * |
| 45 | * @param int $id Category ID |
| 46 | * @return Category|null Category object or null if not found |
| 47 | */ |
| 48 | public function getById(int $id): ?Category |
| 49 | { |
| 50 | return Category::getById($this->db, $id); |
| 51 | } |
| 52 | |
| 53 | /** |
| 54 | * Get category by slug |
| 55 | * |
| 56 | * @param string $slug Category slug |
| 57 | * @return Category|null Category object or null if not found |
| 58 | */ |
| 59 | public function getBySlug(string $slug): ?Category |
| 60 | { |
| 61 | try { |
| 62 | $stmt = $this->db->prepare(" |
| 63 | SELECT * FROM support_categories |
| 64 | WHERE slug = :slug AND is_active = 1 |
| 65 | "); |
| 66 | $stmt->execute([':slug' => $slug]); |
| 67 | |
| 68 | $row = $stmt->fetch(PDO::FETCH_ASSOC); |
| 69 | if (!$row) { |
| 70 | return null; |
| 71 | } |
| 72 | |
| 73 | return Category::fromArray($row); |
| 74 | } catch (PDOException $e) { |
| 75 | error_log("CategoryManager::getBySlug error: " . $e->getMessage()); |
| 76 | return null; |
| 77 | } |
| 78 | } |
| 79 | |
| 80 | /** |
| 81 | * Get article count for a category |
| 82 | * |
| 83 | * @param int $categoryId Category ID |
| 84 | * @return int Number of articles in category |
| 85 | */ |
| 86 | public function getArticleCount(int $categoryId): int |
| 87 | { |
| 88 | try { |
| 89 | $stmt = $this->db->prepare(" |
| 90 | SELECT COUNT(*) as cnt |
| 91 | FROM support_articles |
| 92 | WHERE category_id = :categoryId |
| 93 | "); |
| 94 | $stmt->execute([':categoryId' => $categoryId]); |
| 95 | $result = $stmt->fetch(PDO::FETCH_ASSOC); |
| 96 | |
| 97 | return (int) $result['cnt']; |
| 98 | } catch (PDOException $e) { |
| 99 | error_log("CategoryManager::getArticleCount error: " . $e->getMessage()); |
| 100 | return 0; |
| 101 | } |
| 102 | } |
| 103 | |
| 104 | /** |
| 105 | * Get categories with article counts |
| 106 | * |
| 107 | * Returns all active categories with the count of published articles in each |
| 108 | * |
| 109 | * @return array Array of category data with articleCount |
| 110 | */ |
| 111 | public function getCategoriesWithCounts(): array |
| 112 | { |
| 113 | try { |
| 114 | $stmt = $this->db->query(" |
| 115 | SELECT |
| 116 | c.*, |
| 117 | COUNT(a.id) as articleCount |
| 118 | FROM support_categories c |
| 119 | LEFT JOIN support_articles a ON c.id = a.category_id AND a.status = 'published' |
| 120 | WHERE c.is_active = 1 |
| 121 | GROUP BY c.id |
| 122 | ORDER BY c.sort_order ASC, c.name ASC |
| 123 | "); |
| 124 | |
| 125 | $rows = $stmt->fetchAll(PDO::FETCH_ASSOC); |
| 126 | $categories = []; |
| 127 | |
| 128 | foreach ($rows as $row) { |
| 129 | $category = Category::fromArray($row); |
| 130 | $categoryData = $category->toArray(); |
| 131 | $categoryData['articleCount'] = (int) $row['articleCount']; |
| 132 | $categories[] = $categoryData; |
| 133 | } |
| 134 | |
| 135 | return $categories; |
| 136 | } catch (PDOException $e) { |
| 137 | error_log("CategoryManager::getCategoriesWithCounts error: " . $e->getMessage()); |
| 138 | return []; |
| 139 | } |
| 140 | } |
| 141 | |
| 142 | /** |
| 143 | * Check if slug exists |
| 144 | * |
| 145 | * @param string $slug Category slug to check |
| 146 | * @param int|null $excludeId Optional category ID to exclude from check |
| 147 | * @return bool True if slug exists |
| 148 | */ |
| 149 | public function slugExists(string $slug, ?int $excludeId = null): bool |
| 150 | { |
| 151 | try { |
| 152 | $sql = "SELECT COUNT(*) as cnt FROM support_categories WHERE slug = :slug"; |
| 153 | $params = [':slug' => $slug]; |
| 154 | |
| 155 | if ($excludeId !== null) { |
| 156 | $sql .= " AND id != :excludeId"; |
| 157 | $params[':excludeId'] = $excludeId; |
| 158 | } |
| 159 | |
| 160 | $stmt = $this->db->prepare($sql); |
| 161 | $stmt->execute($params); |
| 162 | $result = $stmt->fetch(PDO::FETCH_ASSOC); |
| 163 | |
| 164 | return $result['cnt'] > 0; |
| 165 | } catch (PDOException $e) { |
| 166 | error_log("CategoryManager::slugExists error: " . $e->getMessage()); |
| 167 | return false; |
| 168 | } |
| 169 | } |
| 170 | } |