Файл: framework/forms/gridfield/GridFieldAddExistingAutocompleter.php
Строк: 312
<?php
/**
* This class is is responsible for adding objects to another object's has_many
* and many_many relation, as defined by the {@link RelationList} passed to the
* {@link GridField} constructor.
*
* Objects can be searched through an input field (partially matching one or
* more fields).
*
* Selecting from the results will add the object to the relation.
*
* Often used alongside {@link GridFieldDeleteAction} for detaching existing
* records from a relationship.
*
* For easier setup, have a look at a sample configuration in
* {@link GridFieldConfig_RelationEditor}.
*
* @package forms
* @subpackage fields-gridfield
*/
class GridFieldAddExistingAutocompleter
implements GridField_HTMLProvider, GridField_ActionProvider, GridField_DataManipulator, GridField_URLHandler {
/**
* Which template to use for rendering
*
* @var string $itemClass
*/
protected $itemClass = 'GridFieldAddExistingAutocompleter';
/**
* The HTML fragment to write this component into
*/
protected $targetFragment;
/**
* @var SS_List
*/
protected $searchList;
/**
* Define column names which should be included in the search.
* By default, they're searched with a {@link StartsWithFilter}.
* To define custom filters, use the same notation as {@link DataList->filter()},
* e.g. "Name:EndsWith".
*
* If multiple fields are provided, the filtering is performed non-exclusive.
* If no fields are provided, tries to auto-detect fields from
* {@link DataObject->searchableFields()}.
*
* The fields support "dot-notation" for relationships, e.g.
* a entry called "Team.Name" will search through the names of
* a "Team" relationship.
*
* @example
* array(
* 'Name',
* 'Email:StartsWith',
* 'Team.Name'
* )
*
* @var Array
*/
protected $searchFields = array();
/**
* @var string SSViewer template to render the results presentation
*/
protected $resultsFormat = '$Title';
/**
* @var String Text shown on the search field, instructing what to search for.
*/
protected $placeholderText;
/**
* @var int
*/
protected $resultsLimit = 20;
/**
*
* @param array $searchFields Which fields on the object in the list should be searched
*/
public function __construct($targetFragment = 'before', $searchFields = null) {
$this->targetFragment = $targetFragment;
$this->searchFields = (array)$searchFields;
}
/**
*
* @param GridField $gridField
* @return string - HTML
*/
public function getHTMLFragments($gridField) {
$dataClass = $gridField->getList()->dataClass();
$forTemplate = new ArrayData(array());
$forTemplate->Fields = new ArrayList();
$searchField = new TextField('gridfield_relationsearch', _t('GridField.RelationSearch', "Relation search"));
$searchField->setAttribute('data-search-url', Controller::join_links($gridField->Link('search')));
$searchField->setAttribute('placeholder', $this->getPlaceholderText($dataClass));
$searchField->addExtraClass('relation-search no-change-track');
$findAction = new GridField_FormAction($gridField, 'gridfield_relationfind',
_t('GridField.Find', "Find"), 'find', 'find');
$findAction->setAttribute('data-icon', 'relationfind');
$addAction = new GridField_FormAction($gridField, 'gridfield_relationadd',
_t('GridField.LinkExisting', "Link Existing"), 'addto', 'addto');
$addAction->setAttribute('data-icon', 'chain--plus');
// If an object is not found, disable the action
if(!is_int($gridField->State->GridFieldAddRelation(null))) {
$addAction->setReadonly(true);
}
$forTemplate->Fields->push($searchField);
$forTemplate->Fields->push($findAction);
$forTemplate->Fields->push($addAction);
return array(
$this->targetFragment => $forTemplate->renderWith($this->itemClass)
);
}
/**
*
* @param GridField $gridField
* @return array
*/
public function getActions($gridField) {
return array('addto');
}
/**
* Manipulate the state to add a new relation
*
* @param GridField $gridField
* @param string $actionName Action identifier, see {@link getActions()}.
* @param array $arguments Arguments relevant for this
* @param array $data All form data
*/
public function handleAction(GridField $gridField, $actionName, $arguments, $data) {
switch($actionName) {
case 'addto':
if(isset($data['relationID']) && $data['relationID']){
$gridField->State->GridFieldAddRelation = $data['relationID'];
}
break;
}
}
/**
* If an object ID is set, add the object to the list
*
* @param GridField $gridField
* @param SS_List $dataList
* @return SS_List
*/
public function getManipulatedData(GridField $gridField, SS_List $dataList) {
$objectID = $gridField->State->GridFieldAddRelation(null);
if(empty($objectID)) {
return $dataList;
}
$object = DataObject::get_by_id($dataList->dataclass(), $objectID);
if($object) {
$dataList->add($object);
}
$gridField->State->GridFieldAddRelation = null;
return $dataList;
}
/**
*
* @param GridField $gridField
* @return array
*/
public function getURLHandlers($gridField) {
return array(
'search' => 'doSearch',
);
}
/**
* Returns a json array of a search results that can be used by for example Jquery.ui.autosuggestion
*
* @param GridField $gridField
* @param SS_HTTPRequest $request
*/
public function doSearch($gridField, $request) {
$dataClass = $gridField->getList()->dataClass();
$allList = $this->searchList ? $this->searchList : DataList::create($dataClass);
$searchFields = ($this->getSearchFields())
? $this->getSearchFields()
: $this->scaffoldSearchFields($dataClass);
if(!$searchFields) {
throw new LogicException(
sprintf('GridFieldAddExistingAutocompleter: No searchable fields could be found for class "%s"',
$dataClass));
}
$params = array();
foreach($searchFields as $searchField) {
$name = (strpos($searchField, ':') !== FALSE) ? $searchField : "$searchField:StartsWith";
$params[$name] = $request->getVar('gridfield_relationsearch');
}
$results = $allList
->subtract($gridField->getList())
->filterAny($params)
->sort(strtok($searchFields[0], ':'), 'ASC')
->limit($this->getResultsLimit());
$json = array();
$originalSourceFileComments = Config::inst()->get('SSViewer', 'source_file_comments');
Config::inst()->update('SSViewer', 'source_file_comments', false);
foreach($results as $result) {
$json[$result->ID] = html_entity_decode(SSViewer::fromString($this->resultsFormat)->process($result));
}
Config::inst()->update('SSViewer', 'source_file_comments', $originalSourceFileComments);
return Convert::array2json($json);
}
/**
* @param String
*/
public function setResultsFormat($format) {
$this->resultsFormat = $format;
return $this;
}
/**
* @return String
*/
public function getResultsFormat() {
return $this->resultsFormat;
}
/**
* Sets the base list instance which will be used for the autocomplete
* search.
*
* @param SS_List $list
*/
public function setSearchList(SS_List $list) {
$this->searchList = $list;
}
/**
* @param Array
*/
public function setSearchFields($fields) {
$this->searchFields = $fields;
return $this;
}
/**
* @return Array
*/
public function getSearchFields() {
return $this->searchFields;
}
/**
* Detect searchable fields and searchable relations.
* Falls back to {@link DataObject->summaryFields()} if
* no custom search fields are defined.
*
* @param String the class name
* @return Array|null names of the searchable fields
*/
public function scaffoldSearchFields($dataClass) {
$obj = singleton($dataClass);
$fields = null;
if($fieldSpecs = $obj->searchableFields()) {
$customSearchableFields = $obj->stat('searchable_fields');
foreach($fieldSpecs as $name => $spec) {
if(is_array($spec) && array_key_exists('filter', $spec)) {
// The searchableFields() spec defaults to PartialMatch,
// so we need to check the original setting.
// If the field is defined $searchable_fields = array('MyField'),
// then default to StartsWith filter, which makes more sense in this context.
if(!$customSearchableFields || array_search($name, $customSearchableFields)) {
$filter = 'StartsWith';
} else {
$filter = preg_replace('/Filter$/', '', $spec['filter']);
}
$fields[] = "{$name}:{$filter}";
} else {
$fields[] = $name;
}
}
}
if (is_null($fields)) {
if ($obj->hasDatabaseField('Title')) {
$fields = array('Title');
} elseif ($obj->hasDatabaseField('Name')) {
$fields = array('Name');
}
}
return $fields;
}
/**
* @param String The class of the object being searched for
* @return String
*/
public function getPlaceholderText($dataClass) {
$searchFields = ($this->getSearchFields())
? $this->getSearchFields()
: $this->scaffoldSearchFields($dataClass);
if($this->placeholderText) {
return $this->placeholderText;
} else {
$labels = array();
if($searchFields) foreach($searchFields as $searchField) {
$searchField = explode(':', $searchField);
$label = singleton($dataClass)->fieldLabel($searchField[0]);
if($label) $labels[] = $label;
}
if($labels) {
return _t(
'GridField.PlaceHolderWithLabels',
'Find {type} by {name}',
array('type' => singleton($dataClass)->i18n_plural_name(), 'name' => implode(', ', $labels))
);
} else {
return _t(
'GridField.PlaceHolder', 'Find {type}',
array('type' => singleton($dataClass)->i18n_plural_name())
);
}
}
}
/**
* @param String
*/
public function setPlaceholderText($text) {
$this->placeholderText = $text;
}
/**
* Gets the maximum number of autocomplete results to display.
*
* @return int
*/
public function getResultsLimit() {
return $this->resultsLimit;
}
/**
* @param int $limit
*/
public function setResultsLimit($limit) {
$this->resultsLimit = $limit;
}
}