Nextras\Datagrid\Datagrid::processForm PHP Метод

    public function processForm(UI\Form $form)
    {
        $allowRedirect = true;
        if (isset($form['edit'])) {
            if ($form['edit']['save']->isSubmittedBy()) {
                if ($form['edit']->isValid()) {
                    call_user_func($this->editFormCallback, $form['edit']);
                } else {
                    $this->editRowKey = $form['edit'][$this->rowPrimaryKey]->getValue();
                    $allowRedirect = false;
                }
            }
            if ($form['edit']['cancel']->isSubmittedBy() || $form['edit']['save']->isSubmittedBy() && $form['edit']->isValid()) {
                $editRowKey = $form['edit'][$this->rowPrimaryKey]->getValue();
                $this->redrawRow($editRowKey);
                $this->getData($editRowKey);
            }
            if ($this->editRowKey !== null) {
                $this->redrawRow($this->editRowKey);
            }
        }
        if (isset($form['filter'])) {
            if ($form['filter']['filter']->isSubmittedBy()) {
                $values = $form['filter']->getValues(true);
                unset($values['filter']);
                $values = $this->filterFormFilter($values);
                if ($this->paginator) {
                    $this->page = $this->paginator->page = 1;
                }
                $this->filter = $this->filterDataSource = $values;
                $this->redrawControl('rows');
            } elseif ($form['filter']['cancel']->isSubmittedBy()) {
                if ($this->paginator) {
                    $this->page = $this->paginator->page = 1;
                }
                $this->filter = $this->filterDataSource = $this->filterDefaults;
                $form['filter']->setValues($this->filter, true);
                $this->redrawControl('rows');
            }
        }
        if (!$this->presenter->isAjax() && $allowRedirect) {
            $this->redirect('this');
        }
    }