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<?php |
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namespace SilverStripe\CKANRegistry\Model; |
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use SilverStripe\CKANRegistry\Service\ResourcePopulatorInterface; |
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use SilverStripe\Core\Injector\Injector; |
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use SilverStripe\ORM\DataObject; |
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use SilverStripe\ORM\HasManyList; |
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/** |
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* A CKAN Resource that belongs to a DataSet/Package, as to be accessed via the CKAN API. |
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* |
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* @property string Name |
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* @property string ResourceName |
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* @property string Endpoint |
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* @property string DataSet |
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* @property string Identifier |
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* @method HasManyList Fields |
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* @method HasManyList Filters |
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*/ |
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class Resource extends DataObject |
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{ |
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private static $table_name = 'CKANResource'; |
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private static $db = [ |
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'Name' => 'Varchar', |
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'ResourceName' => 'Varchar', |
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'Endpoint' => 'Varchar', |
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'DataSet' => 'Varchar', |
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'Identifier' => 'Varchar', |
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'ItemsPerPage' => 'Int', |
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]; |
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private static $has_many = [ |
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'Fields' => ResourceField::class, |
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'Filters' => ResourceFilter::class, |
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]; |
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private static $defaults = [ |
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'ItemsPerPage' => 30, |
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]; |
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/** |
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* Whenever the CKAN resource identifier is changed we should clear any existing field and filter configurations |
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* |
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* {@inheritdoc} |
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*/ |
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public function onAfterWrite() |
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{ |
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if ($this->isChanged('Identifier')) { |
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$this->Fields()->each(function (ResourceField $field) { |
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$field->delete(); |
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}); |
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/** @var ResourcePopulatorInterface $populator */ |
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$populator = Injector::inst()->get(ResourcePopulatorInterface::class); |
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$populator->populateFields($this); |
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// Remove the existing filters and add a default text entry to search all ResourceFields |
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$this->Filters() |
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->each(function (ResourceFilter $filter) { |
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$filter->delete(); |
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}) |
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->add(ResourceFilter::create()); |
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} |
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parent::onAfterWrite(); |
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} |
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/** |
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* Whenever the CKAN resource identifier is changed, populate a new set of metadata for the new resource |
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* |
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* {@inheritdoc} |
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*/ |
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public function onBeforeWrite() |
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{ |
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if ($this->isChanged('Identifier')) { |
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/** @var ResourcePopulatorInterface $populator */ |
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$populator = Injector::inst()->get(ResourcePopulatorInterface::class); |
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$populator->populateMetadata($this); |
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} |
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parent::onBeforeWrite(); |
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} |
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/** |
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* Loads model data encapsulated as JSON in order to power front end technologies used to render that |
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* data. Includes critical info such as the CKAN site to query (e.g. which domain, datastore, etc.) |
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* but also can be extended to be used for configuring the component used to show this (e.g. React.js |
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* or Vue.js component configuration). |
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* |
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* @return string |
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*/ |
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public function getCKANClientConfig() |
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{ |
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$config = '{}'; |
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$this->extend('updateCKANClientConfig', $config); |
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return $config; |
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} |
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} |
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silverstripe /
silverstripe-ckan-registry
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