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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,75 @@ | ||
| <?php | ||
|
|
||
| namespace Staudenmeir\LaravelAdjacencyList\Query\Grammars; | ||
|
|
||
| use HarryGulliford\Firebird\Query\Grammars\FirebirdGrammar as Base; | ||
| use Illuminate\Database\Query\Builder; | ||
|
|
||
| class FirebirdGrammar extends Base implements ExpressionGrammar | ||
| { | ||
| use OrdersByPath; | ||
|
|
||
| public function compileInitialPath($column, $alias) | ||
| { | ||
| return 'cast(' . $this->wrap($column) . ' as varchar(8191)) as ' . $this->wrap($alias); | ||
| } | ||
|
|
||
| public function compileRecursivePath($column, $alias, bool $reverse = false) | ||
| { | ||
| $wrappedColumn = $this->wrap($column); | ||
| $wrappedAlias = $this->wrap($alias); | ||
| $placeholder = 'cast(? as varchar(8191))'; | ||
|
|
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| return $reverse ? "($wrappedColumn || $placeholder || $wrappedAlias)" : "($wrappedAlias || $placeholder || $wrappedColumn)"; | ||
| } | ||
|
|
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| public function getRecursivePathBindings($separator) | ||
| { | ||
| return [$separator]; | ||
| } | ||
|
|
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| public function selectPathList(Builder $query, $expression, $column, $pathSeparator, $listSeparator) | ||
| { | ||
| return $query->selectRaw( | ||
| 'list(' . $this->wrap($column) . ", '$listSeparator')" | ||
| )->from($expression); | ||
| } | ||
|
|
||
| public function compilePivotColumnNullValue(string $type, int $precision, int $scale): string | ||
| { | ||
| return 'null'; | ||
| } | ||
|
|
||
| public function compileCycleDetection(string $localKey, string $path): string | ||
| { | ||
| $localKey = $this->wrap($localKey); | ||
| $path = $this->wrap($path); | ||
|
|
||
| return "position($localKey || ?, $path) > 0 or position(? || $localKey || ?, $path) > 0"; | ||
| } | ||
|
|
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| public function getCycleDetectionBindings(string $pathSeparator): array | ||
| { | ||
| return [$pathSeparator, $pathSeparator, $pathSeparator]; | ||
| } | ||
|
|
||
| public function compileCycleDetectionInitialSelect(string $column): string | ||
| { | ||
| return 'false as ' . $this->wrap($column); | ||
| } | ||
|
|
||
| public function compileCycleDetectionRecursiveSelect(string $sql, string $column): string | ||
| { | ||
| return $sql; | ||
| } | ||
|
|
||
| public function compileCycleDetectionStopConstraint(string $column): string | ||
| { | ||
| return 'not ' . $this->wrap($column); | ||
| } | ||
|
|
||
| public function supportsUnionInRecursiveExpression(): bool | ||
| { | ||
| return false; | ||
| } | ||
| } |
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