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<?php |
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namespace AlgoWeb\PODataLaravel\Query; |
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use AlgoWeb\PODataLaravel\Enums\ActionVerb; |
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use Illuminate\Database\Eloquent\Relations\Relation; |
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use POData\Providers\Metadata\ResourceProperty; |
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use POData\Providers\Metadata\ResourceSet; |
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use POData\UriProcessor\QueryProcessor\Expression\Parser\IExpressionProvider; |
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use POData\UriProcessor\QueryProcessor\ExpressionParser\FilterInfo; |
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use POData\UriProcessor\QueryProcessor\OrderByParser\InternalOrderByInfo; |
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use POData\UriProcessor\QueryProcessor\SkipTokenParser\SkipTokenInfo; |
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use POData\UriProcessor\ResourcePathProcessor\SegmentParser\KeyDescriptor; |
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use POData\Providers\Query\IQueryProvider; |
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use POData\Providers\Expression\MySQLExpressionProvider; |
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use POData\Providers\Query\QueryType; |
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use POData\Providers\Query\QueryResult; |
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use POData\Providers\Expression\PHPExpressionProvider; |
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use \POData\Common\ODataException; |
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use AlgoWeb\PODataLaravel\Interfaces\AuthInterface; |
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use AlgoWeb\PODataLaravel\Auth\NullAuthProvider; |
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use Illuminate\Support\Facades\App; |
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use Illuminate\Database\Eloquent\Model; |
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use Symfony\Component\Process\Exception\InvalidArgumentException; |
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class LaravelQuery implements IQueryProvider |
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{ |
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protected $expression; |
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protected $auth; |
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protected $reader; |
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public $queryProviderClassName; |
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private $verbMap = []; |
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public function __construct(AuthInterface $auth = null) |
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{ |
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/* MySQLExpressionProvider();*/ |
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$this->expression = new LaravelExpressionProvider(); //PHPExpressionProvider('expression'); |
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$this->queryProviderClassName = get_class($this); |
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$this->auth = isset($auth) ? $auth : new NullAuthProvider(); |
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$this->reader = new LaravelReadQuery($this->auth); |
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$this->verbMap['create'] = ActionVerb::CREATE(); |
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$this->verbMap['update'] = ActionVerb::UPDATE(); |
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$this->verbMap['delete'] = ActionVerb::DELETE(); |
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} |
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/** |
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* Indicates if the QueryProvider can handle ordered paging, this means respecting order, skip, and top parameters |
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* If the query provider can not handle ordered paging, it must return the entire result set and POData will |
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* perform the ordering and paging |
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* |
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* @return Boolean True if the query provider can handle ordered paging, false if POData should perform the paging |
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*/ |
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public function handlesOrderedPaging() |
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{ |
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return true; |
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} |
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/** |
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* Gets the expression provider used by to compile OData expressions into expression used by this query provider. |
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* |
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* @return \POData\Providers\Expression\IExpressionProvider |
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*/ |
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public function getExpressionProvider() |
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{ |
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return $this->expression; |
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} |
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/** |
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* Gets the LaravelReadQuery instance used to handle read queries (repetitious, nyet?) |
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* |
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* @return LaravelReadQuery |
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*/ |
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public function getReader() |
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{ |
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return $this->reader; |
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} |
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/** |
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* Gets collection of entities belongs to an entity set |
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* IE: http://host/EntitySet |
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* http://host/EntitySet?$skip=10&$top=5&filter=Prop gt Value |
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* |
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* @param QueryType $queryType indicates if this is a query for a count, entities, or entities with a count |
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* @param ResourceSet $resourceSet The entity set containing the entities to fetch |
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* @param FilterInfo $filterInfo represents the $filter parameter of the OData query. NULL if no $filter specified |
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* @param null|InternalOrderByInfo $orderBy sorted order if we want to get the data in some specific order |
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* @param int $top number of records which need to be retrieved |
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* @param int $skip number of records which need to be skipped |
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* @param SkipTokenInfo|null $skipToken value indicating what records to skip |
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* @param Model|Relation|null $sourceEntityInstance Starting point of query |
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* |
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* @return QueryResult |
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*/ |
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public function getResourceSet( |
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QueryType $queryType, |
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ResourceSet $resourceSet, |
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$filterInfo = null, |
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$orderBy = null, |
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$top = null, |
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$skip = null, |
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$skipToken = null, |
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$sourceEntityInstance = null |
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) { |
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return $this->getReader()->getResourceSet( |
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$queryType, |
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$resourceSet, |
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$filterInfo, |
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$orderBy, |
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$top, |
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$skip, |
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$skipToken, |
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$sourceEntityInstance |
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); |
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} |
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/** |
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* Gets an entity instance from an entity set identified by a key |
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* IE: http://host/EntitySet(1L) |
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* http://host/EntitySet(KeyA=2L,KeyB='someValue') |
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* |
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* @param ResourceSet $resourceSet The entity set containing the entity to fetch |
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* @param KeyDescriptor $keyDescriptor The key identifying the entity to fetch |
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* |
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* @return object|null Returns entity instance if found else null |
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*/ |
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public function getResourceFromResourceSet( |
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ResourceSet $resourceSet, |
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KeyDescriptor $keyDescriptor = null |
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) { |
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return $this->getReader()->getResourceFromResourceSet($resourceSet, $keyDescriptor); |
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} |
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/** |
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* Get related resource set for a resource |
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* IE: http://host/EntitySet(1L)/NavigationPropertyToCollection |
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* http://host/EntitySet?$expand=NavigationPropertyToCollection |
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* |
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* @param QueryType $queryType indicates if this is a query for a count, entities, or entities with a count |
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* @param ResourceSet $sourceResourceSet The entity set containing the source entity |
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* @param object $sourceEntityInstance The source entity instance |
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* @param ResourceSet $targetResourceSet The resource set of containing the target of the navigation property |
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* @param ResourceProperty $targetProperty The navigation property to retrieve |
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* @param FilterInfo $filter represents the $filter parameter of the OData query. NULL if no $filter specified |
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* @param mixed $orderBy sorted order if we want to get the data in some specific order |
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* @param int $top number of records which need to be retrieved |
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* @param int $skip number of records which need to be skipped |
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* @param SkipTokenInfo|null $skipToken value indicating what records to skip |
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* |
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* @return QueryResult |
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* |
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*/ |
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public function getRelatedResourceSet( |
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QueryType $queryType, |
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ResourceSet $sourceResourceSet, |
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$sourceEntityInstance, |
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ResourceSet $targetResourceSet, |
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ResourceProperty $targetProperty, |
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$filter = null, |
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$orderBy = null, |
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$top = null, |
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$skip = null, |
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$skipToken = null |
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) { |
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return $this->getReader()->getRelatedResourceSet( |
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$queryType, |
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$sourceResourceSet, |
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$sourceEntityInstance, |
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$targetResourceSet, |
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$targetProperty, |
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$filter, |
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$orderBy, |
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$top, |
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$skip, |
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$skipToken |
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); |
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} |
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/** |
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* Gets a related entity instance from an entity set identified by a key |
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* IE: http://host/EntitySet(1L)/NavigationPropertyToCollection(33) |
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* |
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* @param ResourceSet $sourceResourceSet The entity set containing the source entity |
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* @param object $sourceEntityInstance The source entity instance. |
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* @param ResourceSet $targetResourceSet The entity set containing the entity to fetch |
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* @param ResourceProperty $targetProperty The metadata of the target property. |
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* @param KeyDescriptor $keyDescriptor The key identifying the entity to fetch |
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* |
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* @return object|null Returns entity instance if found else null |
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*/ |
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public function getResourceFromRelatedResourceSet( |
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ResourceSet $sourceResourceSet, |
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$sourceEntityInstance, |
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ResourceSet $targetResourceSet, |
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ResourceProperty $targetProperty, |
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KeyDescriptor $keyDescriptor |
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) { |
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return $this->getReader()->getResourceFromRelatedResourceSet( |
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$sourceResourceSet, |
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$sourceEntityInstance, |
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$targetResourceSet, |
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$targetProperty, |
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$keyDescriptor |
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); |
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} |
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/** |
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* Get related resource for a resource |
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* IE: http://host/EntitySet(1L)/NavigationPropertyToSingleEntity |
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* http://host/EntitySet?$expand=NavigationPropertyToSingleEntity |
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* |
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* @param ResourceSet $sourceResourceSet The entity set containing the source entity |
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* @param object $sourceEntityInstance The source entity instance. |
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* @param ResourceSet $targetResourceSet The entity set containing the entity pointed to by the navigation property |
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* @param ResourceProperty $targetProperty The navigation property to fetch |
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* |
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* @return object|null The related resource if found else null |
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*/ |
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public function getRelatedResourceReference( |
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ResourceSet $sourceResourceSet, |
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$sourceEntityInstance, |
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ResourceSet $targetResourceSet, |
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ResourceProperty $targetProperty |
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) { |
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$result = $this->getReader()->getRelatedResourceReference( |
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$sourceResourceSet, |
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$sourceEntityInstance, |
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$targetResourceSet, |
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$targetProperty |
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); |
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return $result; |
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} |
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/** |
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* Updates a resource |
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* |
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* @param ResourceSet $sourceResourceSet The entity set containing the source entity |
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* @param object $sourceEntityInstance The source entity instance |
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* @param KeyDescriptor $keyDescriptor The key identifying the entity to fetch |
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* @param object $data The New data for the entity instance. |
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* @param bool $shouldUpdate Should undefined values be updated or reset to default |
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* |
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* @return object|null The new resource value if it is assignable or throw exception for null. |
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*/ |
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public function updateResource( |
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ResourceSet $sourceResourceSet, |
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$sourceEntityInstance, |
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KeyDescriptor $keyDescriptor, |
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$data, |
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$shouldUpdate = false |
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) { |
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$verb = 'update'; |
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return $this->createUpdateCoreWrapper($sourceResourceSet, $sourceEntityInstance, $data, $verb); |
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} |
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/** |
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* Delete resource from a resource set. |
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* @param ResourceSet|null $sourceResourceSet |
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* @param object $sourceEntityInstance |
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* |
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* return bool true if resources sucessfully deteled, otherwise false. |
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*/ |
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public function deleteResource( |
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ResourceSet $sourceResourceSet, |
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$sourceEntityInstance |
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) { |
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$verb = 'delete'; |
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if (!($sourceEntityInstance instanceof Model)) { |
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throw new InvalidArgumentException('Source entity must be an Eloquent model.'); |
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} |
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$class = $sourceResourceSet->getResourceType()->getInstanceType()->getName(); |
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$id = $sourceEntityInstance->getKey(); |
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$name = $sourceEntityInstance->getKeyName(); |
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$data = [$name => $id]; |
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$data = $this->createUpdateDeleteCore($sourceEntityInstance, $data, $class, $verb); |
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$success = isset($data['id']); |
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if ($success) { |
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return true; |
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} |
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throw new ODataException('Target model not successfully deleted', 422); |
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} |
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/** |
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* @param ResourceSet $resourceSet The entity set containing the entity to fetch |
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* @param object $sourceEntityInstance The source entity instance |
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* @param object $data The New data for the entity instance. |
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* |
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* returns object|null returns the newly created model if sucessful or null if model creation failed. |
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*/ |
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public function createResourceforResourceSet( |
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ResourceSet $resourceSet, |
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$sourceEntityInstance, |
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$data |
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) { |
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$verb = 'create'; |
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return $this->createUpdateCoreWrapper($resourceSet, $sourceEntityInstance, $data, $verb); |
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} |
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/** |
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* @param $sourceEntityInstance |
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* @param $data |
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* @param $class |
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* @param string $verb |
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* @return array|mixed |
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* @throws ODataException |
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* @throws \POData\Common\InvalidOperationException |
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*/ |
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private function createUpdateDeleteCore($sourceEntityInstance, $data, $class, $verb) |
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{ |
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$raw = App::make('metadataControllers'); |
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$map = $raw->getMetadata(); |
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if (!array_key_exists($class, $map)) { |
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throw new \POData\Common\InvalidOperationException('Controller mapping missing for class '.$class.'.'); |
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} |
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$goal = $raw->getMapping($class, $verb); |
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if (null == $goal) { |
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throw new \POData\Common\InvalidOperationException( |
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'Controller mapping missing for '.$verb.' verb on class '.$class.'.' |
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); |
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} |
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assert($data != null, "Data must not be null"); |
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if (is_object($data)) { |
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$data = (array) $data; |
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} |
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if (!is_array($data)) { |
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throw \POData\Common\ODataException::createPreConditionFailedError( |
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'Data not resolvable to key-value array.' |
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); |
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} |
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$controlClass = $goal['controller']; |
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$method = $goal['method']; |
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$paramList = $goal['parameters']; |
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$controller = App::make($controlClass); |
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$parms = $this->createUpdateDeleteProcessInput($sourceEntityInstance, $data, $paramList); |
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unset($data); |
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$result = call_user_func_array(array($controller, $method), $parms); |
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return $this->createUpdateDeleteProcessOutput($result); |
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} |
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344
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/** |
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* Puts an entity instance to entity set identified by a key. |
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* |
347
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* @param ResourceSet $resourceSet The entity set containing the entity to update |
348
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* @param KeyDescriptor $keyDescriptor The key identifying the entity to update |
349
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* @param $data |
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* |
351
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* @return bool|null Returns result of executing query |
352
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*/ |
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public function putResource( |
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ResourceSet $resourceSet, |
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1 |
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KeyDescriptor $keyDescriptor, |
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$data |
357
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|
) { |
358
|
1 |
|
// TODO: Implement putResource() method. |
359
|
|
|
return true; |
360
|
|
|
} |
361
|
|
|
|
362
|
|
|
/** |
363
|
|
|
* @param ResourceSet $sourceResourceSet |
364
|
|
|
* @param $sourceEntityInstance |
365
|
|
|
* @param $data |
366
|
|
|
* @param $verb |
367
|
|
|
* @return mixed |
368
|
|
|
* @throws ODataException |
369
|
|
|
* @throws \POData\Common\InvalidOperationException |
370
|
3 |
|
*/ |
371
|
|
|
private function createUpdateCoreWrapper(ResourceSet $sourceResourceSet, $sourceEntityInstance, $data, $verb) |
372
|
3 |
|
{ |
373
|
3 |
|
$lastWord = 'update' == $verb ? 'updated' : 'created'; |
374
|
|
|
if (!(null == $sourceEntityInstance || $sourceEntityInstance instanceof Model)) { |
375
|
3 |
|
throw new InvalidArgumentException('Source entity must either be null or an Eloquent model.'); |
376
|
|
|
} |
377
|
|
|
|
378
|
3 |
|
$class = $sourceResourceSet->getResourceType()->getInstanceType()->getName(); |
379
|
3 |
|
if (!$this->auth->canAuth($this->verbMap[$verb], $class, $sourceEntityInstance)) { |
380
|
|
|
throw new ODataException("Access denied", 403); |
381
|
|
|
} |
382
|
|
|
|
383
|
|
|
$data = $this->createUpdateDeleteCore($sourceEntityInstance, $data, $class, $verb); |
384
|
|
|
|
385
|
3 |
|
$success = isset($data['id']); |
386
|
|
|
|
387
|
|
|
if ($success) { |
388
|
3 |
|
try { |
389
|
2 |
|
return $class::findOrFail($data['id']); |
390
|
2 |
|
} catch (\Exception $e) { |
391
|
3 |
|
throw new ODataException($e->getMessage(), 500); |
392
|
|
|
} |
393
|
|
|
} |
394
|
|
|
throw new ODataException('Target model not successfully '.$lastWord, 422); |
395
|
|
|
} |
396
|
|
|
|
397
|
3 |
|
/** |
398
|
3 |
|
* @param $sourceEntityInstance |
399
|
3 |
|
* @param $data |
400
|
3 |
|
* @param $paramList |
401
|
3 |
|
* @return array |
402
|
|
|
*/ |
403
|
3 |
|
private function createUpdateDeleteProcessInput($sourceEntityInstance, $data, $paramList) |
404
|
3 |
|
{ |
405
|
3 |
|
$parms = []; |
406
|
3 |
|
|
407
|
2 |
|
foreach ($paramList as $spec) { |
408
|
2 |
|
$varType = isset($spec['type']) ? $spec['type'] : null; |
409
|
2 |
|
$varName = $spec['name']; |
410
|
2 |
|
if (null == $varType) { |
411
|
2 |
|
$parms[] = $sourceEntityInstance->$varName; |
412
|
|
|
continue; |
413
|
|
|
} |
414
|
|
|
// TODO: Give this smarts and actively pick up instantiation details |
415
|
2 |
|
$var = new $varType(); |
416
|
|
|
if ($spec['isRequest']) { |
417
|
|
|
$var->setMethod('POST'); |
418
|
3 |
|
$var->request = new \Symfony\Component\HttpFoundation\ParameterBag($data); |
419
|
3 |
|
} |
420
|
|
|
$parms[] = $var; |
421
|
3 |
|
} |
422
|
|
|
return $parms; |
423
|
3 |
|
} |
424
|
|
|
|
425
|
|
|
/** |
426
|
3 |
|
* @param $result |
427
|
3 |
|
* @return array|mixed |
428
|
3 |
|
* @throws ODataException |
429
|
3 |
|
*/ |
430
|
|
|
private function createUpdateDeleteProcessOutput($result) |
431
|
3 |
|
{ |
432
|
|
|
if (!($result instanceof \Illuminate\Http\JsonResponse)) { |
433
|
|
|
throw ODataException::createInternalServerError('Controller response not well-formed json.'); |
434
|
3 |
|
} |
435
|
|
|
$outData = $result->getData(); |
436
|
|
|
if (is_object($outData)) { |
437
|
|
|
$outData = (array)$outData; |
438
|
|
|
} |
439
|
3 |
|
|
440
|
|
|
if (!is_array($outData)) { |
441
|
|
|
throw ODataException::createInternalServerError('Controller response does not have an array.'); |
442
|
|
|
} |
443
|
|
|
if (!(key_exists('id', $outData) && key_exists('status', $outData) && key_exists('errors', $outData))) { |
444
|
|
|
throw ODataException::createInternalServerError( |
445
|
|
|
'Controller response array missing at least one of id, status and/or errors fields.' |
446
|
|
|
); |
447
|
|
|
} |
448
|
|
|
return $outData; |
449
|
|
|
} |
450
|
|
|
} |
451
|
|
|
|