php - Pimcore: How to override built-in controller -

i attempting extend bulk object import functionality in pimcore restrict users fields have available them in custom layout.

the file need override

pimcore/modules/admin/controllers/objectcontroller.php

and believe method need extend is:

public function importgetfileinfoaction() {     $success = true;     $supportedfieldtypes = ["checkbox", "country", "date", "datetime", "href", "image", "input", "language", "table", "multiselect", "numeric", "password", "select", "slider", "textarea", "wysiwyg", "objects", "multihref", "geopoint", "geopolygon", "geobounds", "link", "user", "email", "gender", "firstname", "lastname", "newsletteractive", "newsletterconfirmed", "countrymultiselect", "objectsmetadata"];     $file = pimcore_system_temp_directory . "/import_" . $this->getparam("id");     // determine type     $dialect = tool\admin::determinecsvdialect(pimcore_system_temp_directory . "/import_" . $this->getparam("id") . "_original");     $count = 0;     if (($handle = fopen($file, "r")) !== false) {         while (($rowdata = fgetcsv($handle, 0, $dialect->delimiter, $dialect->quotechar, $dialect->escapechar)) !== false) {             if ($count == 0) {                 $firstrowdata = $rowdata;             }             $tmpdata = [];             foreach ($rowdata $key => $value) {                 $tmpdata["field_" . $key] = $value;             }             $data[] = $tmpdata;             $cols = count($rowdata);             $count++;             if ($count > 18) {                 break;             }         }         fclose($handle);     }     // class data     $class = object\classdefinition::getbyid($this->getparam("classid"));     $fields = $class->getfielddefinitions();     $availablefields = [];     foreach ($fields $key => $field) {         $config = null;         $title = $field->getname();         if (method_exists($field, "gettitle")) {             if ($field->gettitle()) {                 $title = $field->gettitle();             }         }         if (in_array($field->getfieldtype(), $supportedfieldtypes)) {             $availablefields[] = [$field->getname(), $title . "(" . $field->getfieldtype() . ")"];         }     }     $mappingstore = [];     ($i = 0; $i < $cols; $i++) {         $mappedfield = null;         if ($availablefields[$i]) {             $mappedfield = $availablefields[$i][0];         }         $firstrow = $i;         if (is_array($firstrowdata)) {             $firstrow = $firstrowdata[$i];             if (strlen($firstrow) > 40) {                 $firstrow = substr($firstrow, 0, 40) . "...";             }         }         $mappingstore[] = [             "source" => $i,             "firstrow" => $firstrow,             "target" => $mappedfield         ];     }     //how many rows     $csv = new splfileobject($file);     $csv->setflags(splfileobject::read_csv);     $csv->setcsvcontrol($dialect->delimiter, $dialect->quotechar, $dialect->escapechar);     $rows = 0;     $nbfields = 0;     foreach ($csv $fields) {         if (0 === $rows) {             $nbfields = count($fields);             $rows++;         } elseif ($nbfields == count($fields)) {             $rows++;         }     }     $this->_helper->json([         "success" => $success,         "datapreview" => $data,         "datafields" => array_keys($data[0]),         "targetfields" => $availablefields,         "mappingstore" => $mappingstore,         "rows" => $rows,         "cols" => $cols     ]); } 

specifically these 2 lines:

$class = object\classdefinition::getbyid($this->getparam("classid"));

$fields = $class->getfielddefinitions();

what i'd figure out how fields user can see in custom layout, filter out $fields accordingly. i'd avoid overwriting core file, , instead love extend plugin.

you have create plugin overrides menu items in ui, in order substitute standard object import custom one.

you need create customobjectcontroller can extend standard objectcontroller.