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<?php |
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namespace SilverStripe\CKANRegistry\Forms; |
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use InvalidArgumentException; |
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use SilverStripe\Forms\FormField; |
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use SilverStripe\ORM\DataObjectInterface; |
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class ResourceLocatorField extends FormField |
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{ |
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/** |
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* The default CKAN endpoint to be used in a default isn't provided on construction |
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* @see ResourceLocatorField::$defaultEndpoint |
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* |
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* @config |
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* @var string |
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*/ |
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private static $default_endpoint = 'https://catalogue.data.govt.nz/'; |
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/** |
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* The default CKAN endpoint to be used in this field. This will allow consumers of the field to only provide |
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* package or dataset IDs and still work. If not set the configured default will instead be used. |
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* |
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* @var string|null |
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*/ |
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protected $defaultEndpoint; |
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/** |
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* Set a site name that can be used to refer to the CKAN endpoint. By default this will be "a CKAN website". |
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* |
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* @var string|null |
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*/ |
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protected $siteName = null; |
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/** |
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* The name of the subfield to save the endpoint value of this field into |
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* |
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* @var string |
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*/ |
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protected $endpointFieldName = 'Endpoint'; |
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/** |
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* The name of the subfield to save the dataset value of this field into |
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* |
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* @var string |
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*/ |
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protected $datasetFieldName = 'DataSet'; |
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/** |
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* The name of the subfield to save the resource value of this field into |
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* |
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* @var string |
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*/ |
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protected $resourceFieldName = 'Resource'; |
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/** |
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* @param string $name |
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* @param string $title |
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* @param string $value |
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* @param string $defaultEndpoint |
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*/ |
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public function __construct($name, $title = null, $value = null, $defaultEndpoint = null) |
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{ |
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parent::__construct($name, $title, $value); |
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$this->setDefaultEndpoint($defaultEndpoint); |
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// Set a default description |
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$this->setDescription(_t( |
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__CLASS__ . '.DESCRIPTION', |
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'Connect to a data source from {site}. Once added and saved you can configure the appearance and add search' |
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. ' filters.', |
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[ 'site' => $this->getSiteName() ] |
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)); |
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$this->addExtraClass('ckan-resource-locator__container'); |
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} |
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public function getSchemaDataDefaults() |
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{ |
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$schemaData = parent::getSchemaDataDefaults(); |
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$schemaData['defaultEndpoint'] = $this->getDefaultEndpoint(); |
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return $schemaData; |
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} |
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public function setSubmittedValue($value, $data = null) |
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{ |
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return $this->setValue(json_decode($value, true)); |
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} |
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public function saveInto(DataObjectInterface $dataObject) |
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{ |
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// Duplicate existing logic where the field is skipped given there's no name on this field. |
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if (!$this->name) { |
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return; |
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} |
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// Find what we're actually saving into |
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$child = $this->getSaveTarget($dataObject); |
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if (!$child || !$child instanceof DataObjectInterface) { |
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throw new InvalidArgumentException('Could not determine where to save the value of ' . __CLASS__); |
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} |
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// Pull the value that'll be null or an associative array of our specification |
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$value = $this->Value(); |
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$child->setCastedField($this->getEndpointFieldName(), $value ? $value['endpoint'] : null); |
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$child->setCastedField($this->getDatasetFieldName(), $value ? $value['dataset'] : null); |
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$child->setCastedField($this->getResourceFieldName(), $value ? $value['resource'] : null); |
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} |
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/** |
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* Provide the object that this field actually saves into. |
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* By default this is a relation access with __get. Eg. given $dataObject is a page; $page->CKANResource where |
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* "CKANResource" is the name of this field. |
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* |
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* @param DataObjectInterface $dataObject |
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* @return mixed |
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*/ |
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public function getSaveTarget(DataObjectInterface $dataObject) |
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{ |
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$target = $dataObject->{$this->name}; |
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$this->extend('updateSaveTarget', $target); |
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return $target; |
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} |
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/** |
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* @see ResourceLocatorField::$defaultEndpoint |
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* @return string |
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*/ |
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public function getDefaultEndpoint() |
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{ |
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if (!$this->defaultEndpoint) { |
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return self::config()->get('default_endpoint'); |
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} |
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return $this->defaultEndpoint; |
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} |
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/** |
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* @see ResourceLocatorField::$defaultEndpoint |
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* @param string $defaultEndpoint |
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* @return $this |
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*/ |
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public function setDefaultEndpoint($defaultEndpoint) |
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{ |
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$this->defaultEndpoint = $defaultEndpoint; |
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return $this; |
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} |
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/** |
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* @return null|string |
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*/ |
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public function getSiteName() |
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{ |
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// Allow empty site names |
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if ($this->siteName === null) { |
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return _t(__CLASS__ . '.GENERIC_SITE_NAME', 'a CKAN website'); |
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} |
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return $this->siteName; |
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} |
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/** |
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* @param null|string $siteName |
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* @return $this |
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*/ |
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public function setSiteName($siteName) |
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{ |
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$this->siteName = $siteName; |
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return $this; |
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} |
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/** |
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* @return string |
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*/ |
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public function getEndpointFieldName() |
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{ |
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return $this->endpointFieldName; |
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} |
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/** |
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* @param string $endpointFieldName |
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* @return $this |
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*/ |
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public function setEndpointFieldName($endpointFieldName) |
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{ |
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$this->endpointFieldName = $endpointFieldName; |
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return $this; |
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} |
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/** |
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* @return string |
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*/ |
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public function getDatasetFieldName() |
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{ |
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return $this->datasetFieldName; |
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} |
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/** |
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* @param string $datasetFieldName |
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* @return $this |
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*/ |
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public function setDatasetFieldName($datasetFieldName) |
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{ |
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$this->datasetFieldName = $datasetFieldName; |
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return $this; |
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} |
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/** |
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* @return string |
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*/ |
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public function getResourceFieldName() |
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{ |
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return $this->resourceFieldName; |
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} |
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/** |
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* @param string $resourceFieldName |
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* @return $this |
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*/ |
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public function setResourceFieldName($resourceFieldName) |
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{ |
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$this->resourceFieldName = $resourceFieldName; |
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return $this; |
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} |
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} |
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silverstripe /
silverstripe-ckan-registry
