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<?php |
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namespace SilverStripe\CKANRegistry\Model\ResourceFilter; |
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use InvalidArgumentException; |
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use SilverStripe\CKANRegistry\Forms\PresentedOptionsField; |
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use SilverStripe\CKANRegistry\Model\ResourceFilter; |
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use SilverStripe\Forms\DropdownField; |
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use SilverStripe\Forms\FieldList; |
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/** |
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* Provides a single select option for CKAN resources to be filtered by |
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*/ |
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class Dropdown extends ResourceFilter |
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{ |
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private static $db = [ |
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'Options' => 'Text', // JSON blob |
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]; |
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private static $table_name = 'CKANFilter_Dropdown'; |
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private static $singular_name = 'Dropdown'; |
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protected $fieldType = DropdownField::class; |
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public function getCMSFields() |
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{ |
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$this->beforeUpdateCMSFields(function (FieldList $fields) { |
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$fields->addFieldToTab('Root.Main', PresentedOptionsField::create( |
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'Options', |
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$this->FilterFor, |
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_t(__CLASS__ . '.OPTIONS', 'Presented options') |
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)); |
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}); |
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return parent::getCMSFields(); |
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} |
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public function getClientConfig() |
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{ |
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$config = parent::getClientConfig(); |
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try { |
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$config['options'] = $this->getConfiguredOptions(); |
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} catch (InvalidArgumentException $e) { |
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$config['options'] = []; |
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} |
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return $config; |
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} |
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/** |
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* Get the options that have been configured for this dropdown by the CMS author. ie. parse the "Options" value |
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* |
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* @throws InvalidArgumentException When the configured "selectType" is unknown |
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*/ |
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protected function getConfiguredOptions() |
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{ |
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$spec = json_decode($this->Options, true) ?: []; |
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if (!isset($spec['selectType'])) { |
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return []; |
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} |
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$selectType = (int) $spec['selectType']; |
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if ($selectType === PresentedOptionsField::SELECT_TYPE_ALL) { |
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return $spec['selections']; |
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} |
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if ($selectType === PresentedOptionsField::SELECT_TYPE_CUSTOM) { |
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return $spec['customOptions']; |
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} |
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throw new InvalidArgumentException('Unknown "selectType" is configured for ' . static::class); |
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} |
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} |
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silverstripe /
silverstripe-ckan-registry
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