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<?php |
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namespace LaravelFreelancerNL\Aranguent\Query; |
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use Closure; |
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use Illuminate\Database\ConnectionInterface; |
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use Illuminate\Database\Query\Processors\Processor; |
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class JoinClause extends Builder |
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{ |
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/** |
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* The type of join being performed. |
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* |
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* @var string |
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*/ |
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public $type; |
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/** |
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* The table the join clause is joining to. |
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* |
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* @var string |
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*/ |
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public $table; |
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/** |
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* The connection of the parent query builder. |
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* |
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* @var ConnectionInterface |
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*/ |
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protected $parentConnection; |
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/** |
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* The grammar of the parent query builder. |
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* |
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* @var Grammar |
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*/ |
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protected $parentGrammar; |
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/** |
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* The processor of the parent query builder. |
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* |
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* @var Processor |
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*/ |
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protected $parentProcessor; |
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/** |
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* The class name of the parent query builder. |
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* |
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* @var string |
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*/ |
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protected $parentClass; |
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/** |
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* Create a new join clause instance. |
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* |
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* @param Builder $parentQuery |
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* @param string $type |
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* @param string $table |
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* |
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* @return void |
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*/ |
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public function __construct(Builder $parentQuery, $type, $table) |
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{ |
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$this->type = $type; |
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$this->table = $table; |
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$this->parentClass = get_class($parentQuery); |
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$this->parentGrammar = $parentQuery->getGrammar(); |
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$this->parentProcessor = $parentQuery->getProcessor(); |
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$this->parentConnection = $parentQuery->getConnection(); |
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parent::__construct( |
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$this->parentConnection, |
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$this->parentGrammar, |
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$this->parentProcessor |
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); |
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} |
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/** |
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* Add an "on" clause to the join. |
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* |
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* On clauses can be chained, e.g. |
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* |
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* $join->on('contacts.user_id', '=', 'users.id') |
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* ->on('contacts.info_id', '=', 'info.id') |
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* |
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* will produce the following SQL: |
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* |
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* on `contacts`.`user_id` = `users`.`id` and `contacts`.`info_id` = `info`.`id` |
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* |
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* @param \Closure|string $first |
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* @param string|null $operator |
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* @param \Illuminate\Database\Query\Expression|string|null $second |
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* @param string $boolean |
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* |
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* @throws \InvalidArgumentException |
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* |
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* @return $this |
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*/ |
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public function on($first, $operator = null, $second = null, $boolean = 'and') |
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{ |
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if ($first instanceof Closure) { |
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return $this->whereNested($first, $boolean); |
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} |
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return $this->whereColumn($first, $operator, $second, $boolean); |
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} |
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/** |
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* Add an "or on" clause to the join. |
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* |
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* @param \Closure|string $first |
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* @param string|null $operator |
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* @param string|null $second |
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* |
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* @return JoinClause |
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*/ |
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public function orOn($first, $operator = null, $second = null) |
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{ |
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return $this->on($first, $operator, $second, 'or'); |
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} |
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/** |
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* Get a new instance of the join clause builder. |
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* |
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* @return JoinClause |
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*/ |
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public function newQuery() |
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{ |
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return new self($this->newParentQuery(), $this->type, $this->table); |
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} |
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/** |
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* Create a new query instance for sub-query. |
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* |
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* @return Builder |
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*/ |
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protected function forSubQuery() |
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{ |
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return $this->newParentQuery()->newQuery(); |
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} |
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/** |
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* Create a new parent query instance. |
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* |
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* @return Builder |
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*/ |
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protected function newParentQuery() |
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{ |
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$class = $this->parentClass; |
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return new $class($this->parentConnection, $this->parentGrammar, $this->parentProcessor); |
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} |
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} |
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LaravelFreelancerNL /
laravel-arangodb
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Let?s assume that you have a directory layout like this:
. |-- OtherDir | |-- Bar.php | `-- Foo.php `-- SomeDir `-- Foo.phpand let?s assume the following content of
Bar.php:If both files
OtherDir/Foo.phpandSomeDir/Foo.phpare loaded in the same runtime, you will see a PHP error such as the following:PHP Fatal error: Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.phpHowever, as
OtherDir/Foo.phpdoes not necessarily have to be loaded and the error is only triggered if it is loaded beforeOtherDir/Bar.php, this problem might go unnoticed for a while. In order to prevent this error from surfacing, you must import the namespace with a different alias: