Lines
90.90%
10 / 11
Functions and Methods
75.00%
3 / 4
Classes and Traits
0.00%
0 / 1
| Name | Lines | Functions and Methods | CRAP | Classes and Traits | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| MySqlGrammar | 90.90% | 10 / 11 | 75.00% | 3 / 4 | 9.06 | 0.00% | 0 / 1 | |||
| wrap | 100.00% | 1 / 1 | 100.00% | 1 / 1 | 1 | |||||
| compileEmptyInsert | 100.00% | 1 / 1 | 100.00% | 1 / 1 | 1 | |||||
| compileOffset | 80.00% | 4 / 5 | 0.00% | 0 / 1 | 3.07 | |||||
| compileLock | 100.00% | 4 / 4 | 100.00% | 1 / 1 | 4 | |||||
| 1 | <?php | |
| 2 | ||
| 3 | declare(strict_types=1); | |
| 4 | ||
| 5 | namespace BlueprintAU\Radiant\Database\Grammars; | |
| 6 | ||
| 7 | use BlueprintAU\Radiant\Database\Query\Enums\LockType; | |
| 8 | use BlueprintAU\Radiant\Database\Query\QueryBuilder; | |
| 9 | ||
| 10 | /** | |
| 11 | * The MySQL dialect of the SQL Grammar. | |
| 12 | * | |
| 13 | * Identifiers are quoted with backticks (embedded backticks doubled). Plain | |
| 14 | * `INSERT ... RETURNING` is not supported, so {@see usesReturning()} stays | |
| 15 | * false and `insertGetId()` falls back to `lastInsertId()` via | |
| 16 | * {@see compileInsertForId()}'s `returnsKey` flag. Row locks render as | |
| 17 | * `for update` and `lock in share mode`; an offset without a limit is padded | |
| 18 | * with the unsigned-bigint maximum so the offset is accepted. | |
| 19 | */ | |
| 20 | final class MySqlGrammar extends Grammar | |
| 21 | { | |
| 22 | /** | |
| 23 | * Wrap an identifier in MySQL backticks. | |
| 24 | * | |
| 25 | * @param string $value | |
| 26 | * @return string | |
| 27 | */ | |
| 28 | protected function wrap(string $value): string | |
| 29 | { | |
| 30 | return '`' . str_replace('`', '``', $value) . '`'; | |
| 31 | } | |
| 32 | ||
| 33 | /** | |
| 34 | * Compile the empty-row insert — the one-row `VALUES ()` fallback. | |
| 35 | * | |
| 36 | * MySQL has no `INSERT ... DEFAULT VALUES` form; it accepts the one-row | |
| 37 | * `VALUES ()` and applies the column defaults. | |
| 38 | * | |
| 39 | * @param QueryBuilder $builder | |
| 40 | * @return string | |
| 41 | */ | |
| 42 | #[\Override] | |
| 43 | protected function compileEmptyInsert(QueryBuilder $builder): string | |
| 44 | { | |
| 45 | return "INSERT INTO {$this->wrapFromTable($builder)} () VALUES ()"; | |
| 46 | } | |
| 47 | ||
| 48 | /** | |
| 49 | * Compile the offset clause, padding a bare offset with the max limit. | |
| 50 | * | |
| 51 | * @param QueryBuilder $builder | |
| 52 | * @return string | |
| 53 | */ | |
| 54 | protected function compileOffset(QueryBuilder $builder): string | |
| 55 | { | |
| 56 | if ($builder->getOffset() === null) { | |
| 57 | return ''; | |
| 58 | } | |
| 59 | if ($builder->getLimit() === null) { | |
| 60 | return 'LIMIT 18446744073709551615 OFFSET ' . $builder->getOffset(); | |
| 61 | } | |
| 62 | return 'OFFSET ' . $builder->getOffset(); | |
| 63 | } | |
| 64 | ||
| 65 | /** | |
| 66 | * Compile the row lock for MySQL. | |
| 67 | * | |
| 68 | * @param QueryBuilder $builder | |
| 69 | * @return string | |
| 70 | */ | |
| 71 | protected function compileLock(QueryBuilder $builder): string | |
| 72 | { | |
| 73 | return match ($builder->getLock()) { | |
| 74 | null => '', | |
| 75 | LockType::Update => 'FOR UPDATE', | |
| 76 | LockType::Shared => 'LOCK IN SHARE MODE', | |
| 77 | }; | |
| 78 | } | |
| 79 | } |