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| 1 | <?php |
| 2 | |
| 3 | /** |
| 4 | * Fluent builder for CREATE TABLE statements. |
| 5 | * |
| 6 | * This Source Code Form is subject to the terms of the Mozilla Public License, |
| 7 | * v. 2.0. If a copy of the MPL was not distributed with this file, You can |
| 8 | * obtain one at https://mozilla.org/MPL/2.0/. |
| 9 | * |
| 10 | * @package phpMyFAQ |
| 11 | * @author Thorsten Rinne <thorsten@phpmyfaq.de> |
| 12 | * @copyright 2023-2026 phpMyFAQ Team |
| 13 | * @license https://www.mozilla.org/MPL/2.0/ Mozilla Public License Version 2.0 |
| 14 | * @link https://www.phpmyfaq.de |
| 15 | * @since 2026-01-25 |
| 16 | */ |
| 17 | |
| 18 | declare(strict_types=1); |
| 19 | |
| 20 | namespace phpMyFAQ\Setup\Migration\QueryBuilder; |
| 21 | |
| 22 | use LogicException; |
| 23 | use phpMyFAQ\Database; |
| 24 | |
| 25 | class TableBuilder |
| 26 | { |
| 27 | private string $tableName = ''; |
| 28 | private bool $ifNotExists = false; |
| 29 | private DialectInterface $dialect; |
| 30 | |
| 31 | /** @var array<string, array{type: string, nullable: bool, default: string|null, extra: string|null}> */ |
| 32 | private array $columns = []; |
| 33 | |
| 34 | /** @var string[] */ |
| 35 | private array $primaryKey = []; |
| 36 | |
| 37 | /** @var array<string, array{columns: string[], unique: bool}> */ |
| 38 | private array $indexes = []; |
| 39 | |
| 40 | /** @var array<string[]> */ |
| 41 | private array $fullTextIndexes = []; |
| 42 | |
| 43 | public function __construct(?DialectInterface $dialect = null) |
| 44 | { |
| 45 | $this->dialect = $dialect ?? DialectFactory::create(); |
| 46 | } |
| 47 | |
| 48 | /** |
| 49 | * Sets the table name. |
| 50 | */ |
| 51 | public function table(string $name, bool $withPrefix = true): self |
| 52 | { |
| 53 | $this->tableName = $withPrefix ? Database::getTablePrefix() . $name : $name; |
| 54 | return $this; |
| 55 | } |
| 56 | |
| 57 | /** |
| 58 | * Adds IF NOT EXISTS clause. |
| 59 | */ |
| 60 | public function ifNotExists(): self |
| 61 | { |
| 62 | $this->ifNotExists = true; |
| 63 | return $this; |
| 64 | } |
| 65 | |
| 66 | /** |
| 67 | * Adds an INTEGER column. |
| 68 | */ |
| 69 | public function integer(string $name, bool $nullable = true, ?int $default = null): self |
| 70 | { |
| 71 | return $this->addColumn( |
| 72 | $name, |
| 73 | $this->dialect->integer(), |
| 74 | $nullable, |
| 75 | $default !== null ? (string) $default : null, |
| 76 | ); |
| 77 | } |
| 78 | |
| 79 | /** |
| 80 | * Adds a BIGINT column. |
| 81 | */ |
| 82 | public function bigInteger(string $name, bool $nullable = true, ?int $default = null): self |
| 83 | { |
| 84 | return $this->addColumn( |
| 85 | $name, |
| 86 | $this->dialect->bigInteger(), |
| 87 | $nullable, |
| 88 | $default !== null ? (string) $default : null, |
| 89 | ); |
| 90 | } |
| 91 | |
| 92 | /** |
| 93 | * Adds a SMALLINT column. |
| 94 | */ |
| 95 | public function smallInteger(string $name, bool $nullable = true, ?int $default = null): self |
| 96 | { |
| 97 | return $this->addColumn( |
| 98 | $name, |
| 99 | $this->dialect->smallInteger(), |
| 100 | $nullable, |
| 101 | $default !== null ? (string) $default : null, |
| 102 | ); |
| 103 | } |
| 104 | |
| 105 | /** |
| 106 | * Adds a VARCHAR column. |
| 107 | */ |
| 108 | public function varchar(string $name, int $length, bool $nullable = true, ?string $default = null): self |
| 109 | { |
| 110 | // Escape single quotes in default value per SQL string literal rules (replace ' with '') |
| 111 | $defaultVal = $default !== null ? "'" . str_replace(search: "'", replace: "''", subject: $default) . "'" : null; |
| 112 | return $this->addColumn($name, $this->dialect->varchar($length), $nullable, $defaultVal); |
| 113 | } |
| 114 | |
| 115 | /** |
| 116 | * Adds a TEXT column. |
| 117 | */ |
| 118 | public function text(string $name, bool $nullable = true): self |
| 119 | { |
| 120 | return $this->addColumn($name, $this->dialect->text(), $nullable); |
| 121 | } |
| 122 | |
| 123 | /** |
| 124 | * Adds a LONGTEXT column (or equivalent). |
| 125 | */ |
| 126 | public function longText(string $name, bool $nullable = true): self |
| 127 | { |
| 128 | return $this->addColumn($name, $this->dialect->longText(), $nullable); |
| 129 | } |
| 130 | |
| 131 | /** |
| 132 | * Adds a BLOB column (or equivalent). |
| 133 | */ |
| 134 | public function blob(string $name, bool $nullable = true): self |
| 135 | { |
| 136 | return $this->addColumn($name, $this->dialect->blob(), $nullable); |
| 137 | } |
| 138 | |
| 139 | /** |
| 140 | * Adds a BOOLEAN/TINYINT column. |
| 141 | */ |
| 142 | public function boolean(string $name, bool $nullable = true, ?bool $default = null): self |
| 143 | { |
| 144 | $defaultVal = match (true) { |
| 145 | $default === null => null, |
| 146 | $default => '1', |
| 147 | default => '0', |
| 148 | }; |
| 149 | return $this->addColumn($name, $this->dialect->boolean(), $nullable, $defaultVal); |
| 150 | } |
| 151 | |
| 152 | /** |
| 153 | * Adds a TIMESTAMP/DATETIME column. |
| 154 | */ |
| 155 | public function timestamp(string $name, bool $nullable = true, bool $defaultCurrent = false): self |
| 156 | { |
| 157 | $default = $defaultCurrent ? $this->dialect->currentTimestamp() : null; |
| 158 | return $this->addColumn($name, $this->dialect->timestamp(), $nullable, $default); |
| 159 | } |
| 160 | |
| 161 | /** |
| 162 | * Adds a DATE column. |
| 163 | */ |
| 164 | public function date(string $name, bool $nullable = true, bool $defaultCurrent = false): self |
| 165 | { |
| 166 | $default = $defaultCurrent ? $this->dialect->currentDate() : null; |
| 167 | return $this->addColumn($name, $this->dialect->date(), $nullable, $default); |
| 168 | } |
| 169 | |
| 170 | /** |
| 171 | * Adds a CHAR column. |
| 172 | */ |
| 173 | public function char(string $name, int $length, bool $nullable = true, ?string $default = null): self |
| 174 | { |
| 175 | // Escape single quotes in default value per SQL string literal rules (replace ' with '') |
| 176 | $defaultVal = $default !== null ? "'" . str_replace(search: "'", replace: "''", subject: $default) . "'" : null; |
| 177 | return $this->addColumn($name, $this->dialect->char($length), $nullable, $defaultVal); |
| 178 | } |
| 179 | |
| 180 | /** |
| 181 | * Adds an auto-increment primary key column. |
| 182 | */ |
| 183 | public function autoIncrement(string $name = 'id'): self |
| 184 | { |
| 185 | $this->columns[$name] = [ |
| 186 | 'type' => 'AUTO_INCREMENT', |
| 187 | 'nullable' => false, |
| 188 | 'default' => null, |
| 189 | 'extra' => null, |
| 190 | ]; |
| 191 | |
| 192 | if ($this->primaryKey === []) { |
| 193 | $this->primaryKey = [$name]; |
| 194 | } |
| 195 | |
| 196 | return $this; |
| 197 | } |
| 198 | |
| 199 | /** |
| 200 | * Sets the primary key column(s). |
| 201 | * |
| 202 | * @param string|string[] $columns |
| 203 | */ |
| 204 | public function primaryKey(string|array $columns): self |
| 205 | { |
| 206 | $this->primaryKey = (array) $columns; |
| 207 | return $this; |
| 208 | } |
| 209 | |
| 210 | /** |
| 211 | * Adds an index. |
| 212 | * |
| 213 | * @param string|string[] $columns |
| 214 | */ |
| 215 | public function index(string $name, string|array $columns): self |
| 216 | { |
| 217 | $this->indexes[$name] = [ |
| 218 | 'columns' => (array) $columns, |
| 219 | 'unique' => false, |
| 220 | ]; |
| 221 | return $this; |
| 222 | } |
| 223 | |
| 224 | /** |
| 225 | * Adds a FULLTEXT index (MySQL only, ignored for other dialects). |
| 226 | * |
| 227 | * @param string|string[] $columns |
| 228 | */ |
| 229 | public function fullTextIndex(string|array $columns): self |
| 230 | { |
| 231 | $this->fullTextIndexes[] = (array) $columns; |
| 232 | return $this; |
| 233 | } |
| 234 | |
| 235 | /** |
| 236 | * Adds a unique index. |
| 237 | * |
| 238 | * @param string|string[] $columns |
| 239 | */ |
| 240 | public function uniqueIndex(string $name, string|array $columns): self |
| 241 | { |
| 242 | $this->indexes[$name] = [ |
| 243 | 'columns' => (array) $columns, |
| 244 | 'unique' => true, |
| 245 | ]; |
| 246 | return $this; |
| 247 | } |
| 248 | |
| 249 | /** |
| 250 | * Builds the CREATE TABLE statement. |
| 251 | */ |
| 252 | public function build(): string |
| 253 | { |
| 254 | if ($this->tableName === '') { |
| 255 | throw new LogicException('Table name not set: call table() before build()'); |
| 256 | } |
| 257 | |
| 258 | $parts = []; |
| 259 | |
| 260 | foreach ($this->columns as $name => $def) { |
| 261 | if ($def['type'] === 'AUTO_INCREMENT') { |
| 262 | $parts[] = $this->dialect->autoIncrement($name); |
| 263 | continue; |
| 264 | } |
| 265 | |
| 266 | $col = "{$name} {$def['type']}"; |
| 267 | if (!$def['nullable']) { |
| 268 | $col .= ' NOT NULL'; |
| 269 | } |
| 270 | |
| 271 | if ($def['nullable'] && $def['default'] === null) { |
| 272 | $col .= ' NULL'; |
| 273 | } |
| 274 | |
| 275 | if ($def['default'] !== null) { |
| 276 | $col .= ' DEFAULT ' . $def['default']; |
| 277 | } |
| 278 | |
| 279 | $parts[] = $col; |
| 280 | } |
| 281 | |
| 282 | // Add primary key if set and not already added via autoIncrement |
| 283 | // For SQLite and MySQL, autoIncrement() already includes PRIMARY KEY, so skip explicit PRIMARY KEY |
| 284 | $hasAutoIncrement = false; |
| 285 | foreach ($this->columns as $def) { |
| 286 | if ($def['type'] !== 'AUTO_INCREMENT') { |
| 287 | continue; |
| 288 | } |
| 289 | |
| 290 | $hasAutoIncrement = true; |
| 291 | break; |
| 292 | } |
| 293 | |
| 294 | $dialectType = $this->dialect->getType(); |
| 295 | $autoIncrementIncludesPk = in_array($dialectType, ['sqlite3', 'mysqli', 'pdo_mysql'], strict: true); |
| 296 | if ($this->primaryKey !== [] && !($hasAutoIncrement && $autoIncrementIncludesPk)) { |
| 297 | $pkColumns = implode(', ', $this->primaryKey); |
| 298 | $parts[] = "PRIMARY KEY ({$pkColumns})"; |
| 299 | } |
| 300 | |
| 301 | // Add inline indexes only for MySQL (MySQL supports this, other databases don't) |
| 302 | $isMysql = in_array($this->dialect->getType(), ['mysqli', 'pdo_mysql'], strict: true); |
| 303 | if ($isMysql) { |
| 304 | foreach ($this->fullTextIndexes as $ftColumns) { |
| 305 | $columnList = implode(',', $ftColumns); |
| 306 | $parts[] = "FULLTEXT ({$columnList})"; |
| 307 | } |
| 308 | |
| 309 | foreach ($this->indexes as $indexName => $indexDef) { |
| 310 | $columnList = implode(', ', $indexDef['columns']); |
| 311 | $indexType = $indexDef['unique'] ? 'UNIQUE INDEX' : 'INDEX'; |
| 312 | $parts[] = "{$indexType} {$indexName} ({$columnList})"; |
| 313 | } |
| 314 | } |
| 315 | |
| 316 | $columnDefs = implode(",\n ", $parts); |
| 317 | $prefix = $this->dialect->createTablePrefix($this->tableName, $this->ifNotExists); |
| 318 | $suffix = $this->dialect->createTableSuffix(); |
| 319 | |
| 320 | $sql = "{$prefix} (\n {$columnDefs}\n)"; |
| 321 | if ($suffix !== '') { |
| 322 | $sql .= ' ' . $suffix; |
| 323 | } |
| 324 | |
| 325 | return $sql; |
| 326 | } |
| 327 | |
| 328 | /** |
| 329 | * Returns separate CREATE INDEX statements. |
| 330 | * For MySQL, returns empty array since indexes are inlined in CREATE TABLE. |
| 331 | * |
| 332 | * @return string[] |
| 333 | */ |
| 334 | public function buildIndexStatements(): array |
| 335 | { |
| 336 | if ($this->tableName === '') { |
| 337 | throw new LogicException('Table name not set: call table() before buildIndexStatements()'); |
| 338 | } |
| 339 | |
| 340 | // MySQL already has indexes inlined in CREATE TABLE, so no separate statements needed |
| 341 | $isMysql = in_array($this->dialect->getType(), ['mysqli', 'pdo_mysql'], strict: true); |
| 342 | if ($isMysql) { |
| 343 | return []; |
| 344 | } |
| 345 | |
| 346 | $statements = []; |
| 347 | foreach ($this->indexes as $indexName => $indexDef) { |
| 348 | $statements[] = $this->dialect->createIndex( |
| 349 | $indexName, |
| 350 | $this->tableName, |
| 351 | $indexDef['columns'], |
| 352 | $this->ifNotExists, |
| 353 | ); |
| 354 | } |
| 355 | return $statements; |
| 356 | } |
| 357 | |
| 358 | private function addColumn( |
| 359 | string $name, |
| 360 | string $type, |
| 361 | bool $nullable, |
| 362 | ?string $default = null, |
| 363 | ?string $extra = null, |
| 364 | ): self { |
| 365 | $this->columns[$name] = [ |
| 366 | 'type' => $type, |
| 367 | 'nullable' => $nullable, |
| 368 | 'default' => $default, |
| 369 | 'extra' => $extra, |
| 370 | ]; |
| 371 | return $this; |
| 372 | } |
| 373 | } |