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<?php |
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namespace Firesphere\SolrSearch\Helpers; |
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use Exception; |
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use SilverStripe\Core\ClassInfo; |
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use SilverStripe\ORM\DataObject; |
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use SilverStripe\ORM\FieldType\DBField; |
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use SilverStripe\ORM\SS_List; |
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use SilverStripe\View\ArrayData; |
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class DataResolver |
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{ |
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protected $component; |
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protected $columns = []; |
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protected $columnName = ''; |
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public function __construct($component, $columns = []) |
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{ |
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if (!is_array($columns)) { |
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$columns = array_filter(explode('.', $columns)); |
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} |
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$this->columns = $columns; |
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$this->component = $component; |
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$this->columnName = $this->columns ? array_shift($this->columns) : null; |
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} |
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/** |
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* @param DataObject|ArrayData|SS_List $obj |
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* @param array|string $columns |
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* |
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* @return mixed |
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* @throws Exception |
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*/ |
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public static function identify($obj, $columns = []) |
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{ |
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$instance = new self($obj, $columns); |
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if ($obj instanceof DataObject) { |
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return $instance->resolveDataObject(); |
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} |
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if ($obj instanceof ArrayData) { |
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return $instance->resolveArrayData(); |
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} |
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if ($obj instanceof SS_List) { |
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return $instance->resolveList(); |
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} |
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if ($obj instanceof DBField) { |
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return $instance->resolveField(); |
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} |
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throw new Exception(sprintf('Class: %s, is not supported.', ClassInfo::shortName($obj))); |
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} |
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/** |
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* @param DataObject|ArrayData|SS_List $component |
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* @param array $columns |
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* |
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* @return void |
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* @throws Exception |
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*/ |
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protected function cannotIdentifyException($component, $columns = []) |
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{ |
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throw new Exception( |
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sprintf( |
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'Cannot identify, "%s" from class "%s"', |
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implode('.', $columns), |
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ClassInfo::shortName($component) |
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) |
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); |
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} |
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/** |
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* Resolves a Single field in the database. |
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* @return mixed |
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* @throws Exception |
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*/ |
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protected function resolveField() |
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{ |
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if ($this->columnName) { |
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$method = $this->columnName; |
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if (!method_exists($this->component, $method)) { |
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throw new Exception( |
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sprintf('Method, "%s" not found on "%s"', $method, ClassInfo::shortName($this->component)) |
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); |
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} |
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$value = $this->component->$method(); |
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} else { |
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$value = $this->component->getValue(); |
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} |
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if (!$this->columns) { |
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return $value; |
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} |
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$this->cannotIdentifyException($this->component, $this->columns); |
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} |
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/** |
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* Resolves a DataObject value |
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* @return mixed |
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* @throws Exception |
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*/ |
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protected function resolveDataObject() |
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{ |
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if (empty($this->columnName)) { |
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return $this->component->toMap(); |
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} |
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// Inspect component for element $relation |
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if ($this->component->hasMethod($this->columnName)) { |
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$relation = $this->columnName; |
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return self::identify($this->component->$relation(), $this->columns); |
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} |
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// Inspect component has attribute |
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if ($this->component->hasField($this->columnName)) { |
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$data = $this->component->{$this->columnName}; |
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$dbObject = $this->component->dbObject($this->columnName); |
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if ($dbObject) { |
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$dbObject->setValue($data); |
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return self::identify($dbObject, $this->columns); |
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} |
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return $data; |
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} |
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$this->cannotIdentifyException($this->component, [$this->columnName]); |
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} |
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/** |
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* Resolves an ArrayData value |
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* @return mixed |
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* @throws Exception |
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*/ |
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public function resolveArrayData() |
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{ |
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if (empty($this->columnName)) { |
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return $this->component->toMap(); |
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} |
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// Inspect component has attribute |
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if ($this->component->hasField($this->columnName) && empty($this->columns)) { |
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return $this->component->{$this->columnName}; |
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} |
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$this->cannotIdentifyException($this->component, array_merge([$this->columnName], $this->columns)); |
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} |
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/** |
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* Resolves a DataList values |
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* @return array|mixed |
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* @throws Exception |
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*/ |
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public function resolveList() |
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{ |
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if (empty($this->columnName)) { |
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return $this->component->toNestedArray(); |
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} |
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// Inspect $component for element $relation |
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if ($this->component->hasMethod($this->columnName)) { |
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$relation = $this->columnName; |
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return self::identify($this->component->$relation(), $this->columns); |
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} |
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$data = []; |
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array_unshift($this->columns, $this->columnName); |
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foreach ($this->component as $component) { |
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$data[] = self::identify($component, $this->columns); |
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} |
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return $data; |
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} |
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} |
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Firesphere /
silverstripe-solr-search
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