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<?php |
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namespace SilverStripe\CKANRegistry\Model; |
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use InvalidArgumentException; |
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use SilverStripe\Core\Injector\Injector; |
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use SilverStripe\Forms\DropdownField; |
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use SilverStripe\Forms\FormField; |
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use SilverStripe\Forms\HiddenField; |
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use SilverStripe\Forms\ListboxField; |
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use SilverStripe\Forms\TextField; |
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use SilverStripe\i18n\i18n; |
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use SilverStripe\ORM\DataObject; |
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use SilverStripe\ORM\ValidationResult; |
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/** |
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* Represents a filter for a data resource, which accepts user inputted data and generates a query string (?key=value) |
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* to use in a request against a CKAN API for that particular resource in order to filter the results shown in a |
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* representation of that data. |
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*/ |
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class ResourceFilter extends DataObject |
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{ |
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/** |
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* Types of FormFields that a filter could display as on the user facing side. Generally a list of |
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* {@see SilverStripe\Forms\FormField} mapped to human readable identifiers such as would be passed to a |
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* {@see DropDownField} as the source constructor parameter |
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* |
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* @config |
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* @var array |
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*/ |
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private static $filter_types = [ |
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TextField::class => 'Text', |
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DropdownField::class => 'Select one from list', |
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]; |
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private static $table_name = 'CKANFilter'; |
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private static $db = [ |
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'Name' => 'Varchar', |
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'Type' => 'Varchar', |
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'AllFields' => 'Boolean', |
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'TypeOptions' => 'Text', |
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]; |
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private static $has_one = [ |
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'FilterFor' => Resource::class, |
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]; |
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private static $many_many = [ |
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'FilterFields' => ResourceField::class, |
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]; |
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public function getCMSFields() |
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{ |
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$fields = parent::getCMSFields(); |
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$typeTitle = $fields->dataFieldByName('Type')->Title(); |
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$fields->replaceField('Type', DropdownField::create( |
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'Type', |
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$typeTitle, |
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$this->config()->get('filter_types') |
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)); |
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$fields->replaceField('TypeOptions', HiddenField::create('TypeOptions')); |
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$fields->push(ListboxField::create( |
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'FilterFields', |
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'Columns to search', |
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$this->FilterFor()->Fields()->map('ID', 'ReadableName') |
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)); |
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$fields->removeByName('FilterForID'); |
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return $fields; |
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} |
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public function forTemplate() |
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{ |
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$options = json_decode($this->TypeOptions, true); |
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$field = Injector::inst()->createWithArgs($this->Type, $options); |
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if ($field instanceof FormField) { |
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throw new InvalidArgumentException("$this->Type is not a FormField"); |
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} |
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return $field; |
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} |
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} |
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silverstripe /
silverstripe-ckan-registry
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