mirror of
https://github.com/silverstripe/silverstripe-framework
synced 2024-09-08 02:31:35 +02:00
Cleanup of framework's use of @package and @subpackage labels and additional of labels for classes missing packages. Moved all GridField related components to the one name. Countless spelling fixes, grammar for other comments. Link ClassName references in file headers.
404 lines
11 KiB
PHP
404 lines
11 KiB
PHP
<?php
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/**
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* This class is is responsible for adding objects to another object's has_many
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* and many_many relation, as defined by the {@link RelationList} passed to the
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* {@link GridField} constructor.
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*
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* Objects can be searched through an input field (partially matching one or
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* more fields).
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*
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* Selecting from the results will add the object to the relation.
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*
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* Often used alongside {@link GridFieldDeleteAction} for detaching existing
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* records from a relationship.
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*
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* For easier setup, have a look at a sample configuration in
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* {@link GridFieldConfig_RelationEditor}.
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*
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* @package framework
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* @subpackage fields-gridfield
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*/
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class GridFieldAddExistingAutocompleter
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implements GridField_HTMLProvider, GridField_ActionProvider, GridField_DataManipulator, GridField_URLHandler {
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/**
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* Which template to use for rendering
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*
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* @var string $itemClass
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*/
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protected $itemClass = 'GridFieldAddExistingAutocompleter';
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/**
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* The HTML fragment to write this component into
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*/
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protected $targetFragment;
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/**
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* @var SS_List
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*/
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protected $searchList;
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/**
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* Define column names which should be included in the search.
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* By default, they're searched with a {@link StartsWithFilter}.
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* To define custom filters, use the same notation as {@link DataList->filter()},
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* e.g. "Name:EndsWith".
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*
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* If multiple fields are provided, the filtering is performed non-exclusive.
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* If no fields are provided, tries to auto-detect fields from
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* {@link DataObject->searchableFields()}.
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*
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* The fields support "dot-notation" for relationships, e.g.
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* a entry called "Team.Name" will search through the names of
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* a "Team" relationship.
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*
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* @example
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* array(
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* 'Name',
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* 'Email:StartsWith',
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* 'Team.Name'
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* )
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*
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* @var Array
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*/
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protected $searchFields = array();
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/**
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* @var string SSViewer template to render the results presentation
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*/
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protected $resultsFormat = '$Title';
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/**
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* @var String Text shown on the search field, instructing what to search for.
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*/
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protected $placeholderText;
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/**
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* @var int
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*/
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protected $resultsLimit = 20;
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/**
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*
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* @param array $searchFields Which fields on the object in the list should be searched
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*/
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public function __construct($targetFragment = 'before', $searchFields = null) {
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$this->targetFragment = $targetFragment;
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$this->searchFields = (array)$searchFields;
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}
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/**
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*
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* @param GridField $gridField
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* @return string - HTML
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*/
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public function getHTMLFragments($gridField) {
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$searchState = $gridField->State->GridFieldSearchRelation;
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$dataClass = $gridField->getList()->dataClass();
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$forTemplate = new ArrayData(array());
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$forTemplate->Fields = new ArrayList();
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$searchFields = ($this->getSearchFields())
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? $this->getSearchFields()
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: $this->scaffoldSearchFields($dataClass);
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$value = $this->findSingleEntry($gridField, $searchFields, $searchState, $dataClass);
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$searchField = new TextField('gridfield_relationsearch',
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_t('GridField.RelationSearch', "Relation search"), $value);
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// Apparently the data-* needs to be double qouted for the jQuery.meta data plugin
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$searchField->setAttribute('data-search-url', '\''.Controller::join_links($gridField->Link('search').'\''));
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$searchField->setAttribute('placeholder', $this->getPlaceholderText($dataClass));
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$searchField->addExtraClass('relation-search no-change-track');
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$findAction = new GridField_FormAction($gridField, 'gridfield_relationfind',
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_t('GridField.Find', "Find"), 'find', 'find');
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$findAction->setAttribute('data-icon', 'relationfind');
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$addAction = new GridField_FormAction($gridField, 'gridfield_relationadd',
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_t('GridField.LinkExisting', "Link Existing"), 'addto', 'addto');
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$addAction->setAttribute('data-icon', 'chain--plus');
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// If an object is not found, disable the action
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if(!is_int($gridField->State->GridFieldAddRelation)) {
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$addAction->setReadonly(true);
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}
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$forTemplate->Fields->push($searchField);
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$forTemplate->Fields->push($findAction);
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$forTemplate->Fields->push($addAction);
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return array(
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$this->targetFragment => $forTemplate->renderWith($this->itemClass)
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);
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}
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/**
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*
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* @param GridField $gridField
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* @return array
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*/
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public function getActions($gridField) {
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return array('addto', 'find');
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}
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/**
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* Manipulate the state to either add a new relation, or doing a small search
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*
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* @param GridField $gridField
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* @param string $actionName
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* @param string $arguments
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* @param string $data
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* @return string
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*/
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public function handleAction(GridField $gridField, $actionName, $arguments, $data) {
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switch($actionName) {
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case 'addto':
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if(isset($data['relationID']) && $data['relationID']){
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$gridField->State->GridFieldAddRelation = $data['relationID'];
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}
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$gridField->State->GridFieldSearchRelation = '';
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break;
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case 'find' && isset($data['autosuggest_search']):
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$gridField->State->GridFieldSearchRelation = $data['autosuggest_search'];
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break;
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}
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}
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/**
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* If an object ID is set, add the object to the list
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*
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* @param GridField $gridField
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* @param SS_List $dataList
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* @return SS_List
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*/
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public function getManipulatedData(GridField $gridField, SS_List $dataList) {
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if(!$gridField->State->GridFieldAddRelation) {
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return $dataList;
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}
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$objectID = Convert::raw2sql($gridField->State->GridFieldAddRelation);
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if($objectID) {
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$object = DataObject::get_by_id($dataList->dataclass(), $objectID);
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if($object) {
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$dataList->add($object);
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}
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}
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$gridField->State->GridFieldAddRelation = null;
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return $dataList;
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}
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/**
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*
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* @param GridField $gridField
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* @return array
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*/
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public function getURLHandlers($gridField) {
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return array(
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'search' => 'doSearch',
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);
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}
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/**
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* Returns a json array of a search results that can be used by for example Jquery.ui.autosuggestion
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*
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* @param GridField $gridField
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* @param SS_HTTPRequest $request
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*/
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public function doSearch($gridField, $request) {
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$dataClass = $gridField->getList()->dataClass();
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$allList = $this->searchList ? $this->searchList : DataList::create($dataClass);
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$searchFields = ($this->getSearchFields())
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? $this->getSearchFields()
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: $this->scaffoldSearchFields($dataClass);
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if(!$searchFields) {
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throw new LogicException(
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sprintf('GridFieldAddExistingAutocompleter: No searchable fields could be found for class "%s"',
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$dataClass));
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}
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$params = array();
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foreach($searchFields as $searchField) {
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$name = (strpos($searchField, ':') !== FALSE) ? $searchField : "$searchField:StartsWith";
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$params[$name] = $request->getVar('gridfield_relationsearch');
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}
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$results = $allList
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->subtract($gridField->getList())
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->filterAny($params)
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->sort(strtok($searchFields[0], ':'), 'ASC')
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->limit($this->getResultsLimit());
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$json = array();
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foreach($results as $result) {
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$json[$result->ID] = SSViewer::fromString($this->resultsFormat)->process($result);
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}
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return Convert::array2json($json);
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}
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/**
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* @param String
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*/
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public function setResultsFormat($format) {
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$this->resultsFormat = $format;
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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 getResultsFormat() {
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return $this->resultsFormat;
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}
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/**
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* Sets the base list instance which will be used for the autocomplete
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* search.
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*
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* @param SS_List $list
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*/
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public function setSearchList(SS_List $list) {
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$this->searchList = $list;
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}
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/**
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* @param Array
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*/
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public function setSearchFields($fields) {
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$this->searchFields = $fields;
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return $this;
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}
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/**
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* @return Array
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*/
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public function getSearchFields() {
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return $this->searchFields;
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}
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/**
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* Detect searchable fields and searchable relations.
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* Falls back to {@link DataObject->summaryFields()} if
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* no custom search fields are defined.
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*
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* @param String the class name
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* @return Array|null names of the searchable fields
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*/
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public function scaffoldSearchFields($dataClass) {
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$obj = singleton($dataClass);
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$fields = null;
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if($fieldSpecs = $obj->searchableFields()) {
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$customSearchableFields = $obj->stat('searchable_fields');
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foreach($fieldSpecs as $name => $spec) {
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if(is_array($spec) && array_key_exists('filter', $spec)) {
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// The searchableFields() spec defaults to PartialMatch,
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// so we need to check the original setting.
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// If the field is defined $searchable_fields = array('MyField'),
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// then default to StartsWith filter, which makes more sense in this context.
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if(!$customSearchableFields || array_search($name, $customSearchableFields)) {
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$filter = 'StartsWith';
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} else {
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$filter = preg_replace('/Filter$/', '', $spec['filter']);
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}
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$fields[] = "{$name}:{$filter}";
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} else {
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$fields[] = $name;
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}
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}
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}
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if (is_null($fields)) {
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if ($obj->hasDatabaseField('Title')) {
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$fields = array('Title');
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} elseif ($obj->hasDatabaseField('Name')) {
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$fields = array('Name');
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}
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}
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return $fields;
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}
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/**
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* @param String The class of the object being searched for
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* @return String
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*/
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public function getPlaceholderText($dataClass) {
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$searchFields = ($this->getSearchFields())
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? $this->getSearchFields()
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: $this->scaffoldSearchFields($dataClass);
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if($this->placeholderText) {
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return $this->placeholderText;
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} else {
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$labels = array();
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if($searchFields) foreach($searchFields as $searchField) {
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$label = singleton($dataClass)->fieldLabel($searchField);
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if($label) $labels[] = $label;
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}
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if($labels) {
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return _t(
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'GridField.PlaceHolderWithLabels',
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'Find {type} by {name}',
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array('type' => singleton($dataClass)->plural_name(), 'name' => implode(', ', $labels))
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);
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} else {
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return _t(
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'GridField.PlaceHolder', 'Find {type}',
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array('type' => singleton($dataClass)->plural_name())
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);
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}
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}
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}
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/**
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* @param String
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*/
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public function setPlaceholderText($text) {
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$this->placeholderText = $text;
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}
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/**
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* Gets the maximum number of autocomplete results to display.
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*
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* @return int
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*/
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public function getResultsLimit() {
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return $this->resultsLimit;
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}
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/**
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* @param int $limit
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*/
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public function setResultsLimit($limit) {
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$this->resultsLimit = $limit;
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}
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/**
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* This will provide a StartsWith search that only returns a value if we are
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* matching ONE object only. We wouldn't want to attach used any object to
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* the list.
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*
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* @param GridField $gridField
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* @param string $field
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* @param string $searchTerm
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* @param string $dataclass
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* @return string
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*/
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protected function findSingleEntry($gridField, $field, $searchTerm, $dataclass) {
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$fullList = DataList::create($dataclass);
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$searchTerm = Convert::raw2sql($searchTerm);
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if(!$searchTerm) {
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return;
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}
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$existingList = clone $gridField->getList();
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$searchResults = $fullList->subtract($existingList->limit(0))->filter($field.':StartsWith', $searchTerm);
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// If more than one, skip
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if($searchResults->count() != 1) {
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return '';
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}
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$gridField->State->GridFieldAddRelation = $searchResults->first()->ID;
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return $searchResults->first()->$field;
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}
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}
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