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<?php |
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namespace LeKoala\FormElements; |
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use SilverStripe\ORM\DataList; |
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use SilverStripe\ORM\Relation; |
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use SilverStripe\ORM\DataObject; |
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use SilverStripe\Control\Controller; |
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use SilverStripe\Control\HTTPRequest; |
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use SilverStripe\Control\HTTPResponse; |
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use SilverStripe\Forms\ListboxField; |
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use SilverStripe\ORM\DataObjectInterface; |
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/** |
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* Provide most of the implementation for the AjaxPoweredField |
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* You need to implement yourself: |
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* - getAjax |
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* - setAjax |
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* - isAjax |
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*/ |
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trait Autocompleter |
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{ |
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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 $allowed_actions = [ |
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'autocomplete' |
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]; |
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/** |
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* Ajax class |
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* |
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* @var string |
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*/ |
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protected $ajaxClass; |
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/** |
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* Ajax where |
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* |
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* @var string|array |
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*/ |
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protected $ajaxWhere; |
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/** |
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* Ajax filters |
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* |
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* @var array |
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*/ |
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protected $ajaxFilters = []; |
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/** |
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* @var boolean |
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*/ |
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protected $ajaxFullSearch = false; |
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/** |
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* @var int |
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*/ |
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protected $recordsLimit = 1000; |
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/** |
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* @var string|array |
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*/ |
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protected $customSearchField; |
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/** |
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* @var array |
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*/ |
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protected $customSearchCols; |
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public function autocomplete(HTTPRequest $request): HTTPResponse |
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{ |
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if ($this->isDisabled() || $this->isReadonly()) { |
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return $this->httpError(403); |
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} |
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// CSRF check |
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$token = $this->getForm()->getSecurityToken(); |
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if (!$token->checkRequest($request)) { |
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return $this->httpError(400, "Invalid token"); |
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} |
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$name = $this->getName(); |
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$vars = $this->getServerVars(); |
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// Don't use by default % at the start of term as it prevents use of indexes |
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$term = $request->getVar($vars['queryParam']) . '%'; |
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$term = str_replace(' ', '%', $term); |
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if ($this->ajaxFullSearch) { |
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$term = "%" . $term; |
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} |
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$class = $this->ajaxClass; |
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$sng = $class::singleton(); |
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$baseTable = $sng->baseTable(); |
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$searchField = ''; |
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$searchCandidates = [ |
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'Title', |
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'Name', |
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'Surname', |
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'Email', |
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'ID' |
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]; |
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// Ensure field exists, this is really rudimentary |
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$db = $class::config()->db; |
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foreach ($searchCandidates as $searchCandidate) { |
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if ($searchField) { |
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continue; |
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} |
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if (isset($db[$searchCandidate])) { |
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$searchField = $searchCandidate; |
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} |
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} |
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$searchCols = [$searchField]; |
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// For Surname, do something better |
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if ($searchField == "Surname") { |
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// Show first name, surname |
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if (isset($db['FirstName'])) { |
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$searchField = ['FirstName', 'Surname']; |
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$searchCols = ['FirstName', 'Surname']; |
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} |
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// Also search email |
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if (isset($db['Email'])) { |
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$searchCols = ['FirstName', 'Surname', 'Email']; |
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} |
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} |
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if ($this->customSearchField) { |
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$searchField = $this->customSearchField; |
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} |
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if ($this->customSearchCols) { |
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$searchCols = $this->customSearchCols; |
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} |
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/** @var DataList $list */ |
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$list = $sng::get(); |
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// Make sure at least one field is not null... |
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$where = []; |
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foreach ($searchCols as $searchCol) { |
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$where[] = $searchCol . ' IS NOT NULL'; |
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} |
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$list = $list->whereAny($where); |
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// ... and matches search term ... |
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$where = []; |
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foreach ($searchCols as $searchCol) { |
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$where[$searchCol . ' LIKE ?'] = $term; |
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} |
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$list = $list->whereAny($where); |
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// ... and any user set requirements |
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$filters = $this->ajaxFilters; |
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if (!empty($filters)) { |
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$list = $list->filter($filters); |
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} |
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$where = $this->ajaxWhere; |
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if (!empty($where)) { |
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// Deal with in clause |
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if (is_string($where)) { |
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$customWhere = $where; |
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} else { |
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$customWhere = []; |
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foreach ($where as $col => $param) { |
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// For array, we need a IN statement with a ? for each value |
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if (is_array($param)) { |
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$prepValue = []; |
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$params = []; |
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foreach ($param as $paramValue) { |
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$params[] = $paramValue; |
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$prepValue[] = "?"; |
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} |
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$customWhere["$col IN (" . implode(',', $prepValue) . ")"] = $params; |
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} else { |
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$customWhere["$col = ?"] = $param; |
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} |
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} |
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} |
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$list = $list->where($customWhere); |
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} |
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$list = $list->limit($this->recordsLimit); |
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$results = iterator_to_array($list); |
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$data = []; |
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foreach ($results as $record) { |
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if (is_array($searchField)) { |
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$labelParts = []; |
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foreach ($searchField as $sf) { |
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$labelParts[] = $record->$sf ?? ""; |
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} |
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$label = implode(" ", $labelParts); |
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} else { |
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$label = $record->$searchField ?? ""; |
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} |
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$data[] = [ |
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$vars['valueField'] => $record->ID, |
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$vars['labelField'] => $label ?? "(no label)", |
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]; |
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} |
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$body = json_encode([$vars['dataKey'] => $data]); |
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$response = new HTTPResponse($body); |
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$response->addHeader('Content-Type', 'application/json'); |
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return $response; |
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} |
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/** |
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* Add a record to the source |
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* |
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* Useful for ajax scenarios where the list is not prepopulated but still needs to display |
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* something on first load |
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* |
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* @param DataObject $record |
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* @return boolean true if the record has been added, false otherwise |
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*/ |
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public function addRecordToSource($record) |
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{ |
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if (!$record || !$this->isAjax()) { |
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return false; |
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} |
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$source = $this->getSource(); |
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// It's already in the source |
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if (isset($source[$record->ID])) { |
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return false; |
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} |
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$source[$record->ID] = $record->getTitle(); |
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$this->setSource($source); |
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return true; |
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} |
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/** |
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* Method copied from MultiSelectField to make sure we call $this->setValue |
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* |
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* @param DataObject|DataObjectInterface $record |
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*/ |
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public function loadFromDataObject(DataObjectInterface $record) |
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{ |
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$fieldName = $this->getName(); |
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if (empty($fieldName) || empty($record)) { |
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return; |
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} |
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$relation = $record->hasMethod($fieldName) |
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? $record->$fieldName() |
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: null; |
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$isMulti = $this instanceof ListboxField; |
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// Detect DB relation or field |
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$value = null; |
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if ($relation instanceof Relation) { |
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// Load ids from relation |
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$value = array_values($relation->getIDList() ?? []); |
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} elseif ($record->hasField($fieldName)) { |
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$str = $record->$fieldName; |
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if ($str) { |
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if (strpos($str, '[') === 0) { |
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$value = json_decode($str, JSON_OBJECT_AS_ARRAY); |
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} else { |
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$value = explode(',', $str); |
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} |
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} |
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} |
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if ($value) { |
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if ($isMulti) { |
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$this->setValue($value); |
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} else { |
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$this->setValue(array_pop($value)); |
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} |
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} |
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} |
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/** |
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* Return a link to this field. |
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* |
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* @param string $action |
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* @return string |
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*/ |
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public function Link($action = null) |
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{ |
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if ($this->form) { |
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return Controller::join_links($this->form->FormAction(), 'field/' . $this->getName(), $action); |
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} |
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return Controller::join_links(Controller::curr()->Link(), 'field/' . $this->getName(), $action); |
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} |
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abstract public function getAjax(); |
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abstract public function setAjax($url, $opts = []); |
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abstract public function isAjax(); |
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/** |
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* Define a callback that returns the results as a map of id => title |
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* |
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* @param string $class |
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* @param array $filters |
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* @param string|array $where |
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* @return $this |
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*/ |
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public function setAjaxWizard($class, $filters = [], $where = null) |
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{ |
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$this->ajaxClass = $class; |
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$this->ajaxFilters = $filters; |
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$this->ajaxWhere = $where; |
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return $this; |
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} |
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/** |
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* Get ajax where |
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* |
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* @return string|array |
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*/ |
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public function getAjaxWhere() |
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{ |
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return $this->ajaxWhere; |
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} |
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/** |
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* Set ajax where |
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* |
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* @param string|array $ajaxWhere |
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* @return $this |
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*/ |
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public function setAjaxWhere($ajaxWhere) |
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{ |
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$this->ajaxWhere = $ajaxWhere; |
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return $this; |
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} |
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/** |
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* Get ajax filters |
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* |
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* @return array |
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*/ |
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public function getAjaxFilters() |
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{ |
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return $this->ajaxFilters; |
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} |
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/** |
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* Set ajax filters |
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* |
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* @param array $ajaxFilters |
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* @return $this |
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*/ |
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public function setAjaxFilters($ajaxFilters) |
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{ |
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$this->ajaxFilters = $ajaxFilters; |
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return $this; |
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} |
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/** |
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* Get ajax class |
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* |
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* @return string |
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*/ |
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public function getAjaxClass() |
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{ |
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return $this->ajaxClass; |
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} |
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/** |
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* Set ajax class |
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* |
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* @param string $ajaxClass Ajax class |
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* @return $this |
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*/ |
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public function setAjaxClass(string $ajaxClass) |
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{ |
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$this->ajaxClass = $ajaxClass; |
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return $this; |
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} |
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/** |
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* Get the value of customSearchField |
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* |
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* @return string|array |
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*/ |
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public function getCustomSearchField() |
390
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{ |
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return $this->customSearchField; |
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} |
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|
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/** |
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* Set the value of customSearchField |
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* |
397
|
|
|
* It must be a valid sql expression like CONCAT(FirstName,' ',Surname) |
398
|
|
|
* |
399
|
|
|
* This will be the label returned by the autocomplete |
400
|
|
|
* |
401
|
|
|
* @param string|array $customSearchField |
402
|
|
|
* @return $this |
403
|
|
|
*/ |
404
|
|
|
public function setCustomSearchField($customSearchField) |
405
|
|
|
{ |
406
|
|
|
$this->customSearchField = $customSearchField; |
407
|
|
|
return $this; |
408
|
|
|
} |
409
|
|
|
|
410
|
|
|
/** |
411
|
|
|
* Get the value of customSearchCols |
412
|
|
|
* |
413
|
|
|
* @return array |
414
|
|
|
*/ |
415
|
|
|
public function getCustomSearchCols() |
416
|
|
|
{ |
417
|
|
|
return $this->customSearchCols; |
418
|
|
|
} |
419
|
|
|
|
420
|
|
|
/** |
421
|
|
|
* Set the value of customSearchCols |
422
|
|
|
* |
423
|
|
|
* @param array $customSearchCols |
424
|
|
|
* @return $this |
425
|
|
|
*/ |
426
|
|
|
public function setCustomSearchCols(array $customSearchCols) |
427
|
|
|
{ |
428
|
|
|
$this->customSearchCols = $customSearchCols; |
429
|
|
|
return $this; |
430
|
|
|
} |
431
|
|
|
|
432
|
|
|
/** |
433
|
|
|
* Get the value of recordsLimit |
434
|
|
|
* @return int |
435
|
|
|
*/ |
436
|
|
|
public function getRecordsLimit() |
437
|
|
|
{ |
438
|
|
|
return $this->recordsLimit; |
439
|
|
|
} |
440
|
|
|
|
441
|
|
|
/** |
442
|
|
|
* Set the value of recordsLimit |
443
|
|
|
* |
444
|
|
|
* @param int $recordsLimit |
445
|
|
|
*/ |
446
|
|
|
public function setRecordsLimit($recordsLimit) |
447
|
|
|
{ |
448
|
|
|
$this->recordsLimit = $recordsLimit; |
449
|
|
|
return $this; |
450
|
|
|
} |
451
|
|
|
|
452
|
|
|
/** |
453
|
|
|
* Get the value of ajaxFullSearch |
454
|
|
|
* @return bool |
455
|
|
|
*/ |
456
|
|
|
public function getAjaxFullSearch() |
457
|
|
|
{ |
458
|
|
|
return $this->ajaxFullSearch; |
459
|
|
|
} |
460
|
|
|
|
461
|
|
|
/** |
462
|
|
|
* Set the value of ajaxWildcard |
463
|
|
|
* |
464
|
|
|
* @param boolean $ajaxWildcard |
465
|
|
|
*/ |
466
|
|
|
public function setAjaxFullSearch($ajaxFullSearch) |
467
|
|
|
{ |
468
|
|
|
$this->ajaxFullSearch = $ajaxFullSearch; |
469
|
|
|
return $this; |
470
|
|
|
} |
471
|
|
|
} |
472
|
|
|
|