Contao\FileSelector::generate PHP Метод

generate() публичный Метод

Generate the widget and return it as string
public generate ( ) : string
Результат string
    public function generate()
    {
        $this->import('BackendUser', 'User');
        $this->convertValuesToPaths();
        if ($this->extensions != '') {
            $this->arrValidFileTypes = \StringUtil::trimsplit(',', strtolower($this->extensions));
        }
        /** @var AttributeBagInterface $objSessionBag */
        $objSessionBag = \System::getContainer()->get('session')->getBag('contao_backend');
        // Store the keyword
        if (\Input::post('FORM_SUBMIT') == 'item_selector') {
            $strKeyword = ltrim(\Input::postRaw('keyword'), '*');
            // Make sure the regular expression is valid
            if ($strKeyword != '') {
                try {
                    $this->Database->prepare("SELECT * FROM tl_files WHERE name REGEXP ?")->limit(1)->execute($strKeyword);
                } catch (\Exception $e) {
                    $strKeyword = '';
                }
            }
            $objSessionBag->set('file_selector_search', $strKeyword);
            $this->reload();
        }
        $tree = '';
        $for = $objSessionBag->get('file_selector_search');
        $arrFound = array();
        // Search for a specific file
        if ($for != '') {
            // Wrap in a try catch block in case the regular expression is invalid (see #7743)
            try {
                $strPattern = "CAST(name AS CHAR) REGEXP ?";
                if (substr(\Config::get('dbCollation'), -3) == '_ci') {
                    $strPattern = "LOWER(CAST(name AS CHAR)) REGEXP LOWER(?)";
                }
                $strType = '';
                if (strpos($for, 'type:file') !== false) {
                    $strType = " AND type='file'";
                    $for = trim(str_replace('type:file', '', $for));
                }
                if (strpos($for, 'type:folder') !== false) {
                    $strType = " AND type='folder'";
                    $for = trim(str_replace('type:folder', '', $for));
                }
                $objRoot = $this->Database->prepare("SELECT path, type, extension FROM tl_files WHERE {$strPattern} {$strType} GROUP BY path")->execute($for);
                if ($objRoot->numRows < 1) {
                    $GLOBALS['TL_DCA']['tl_files']['list']['sorting']['root'] = array('');
                } else {
                    $arrPaths = array();
                    // Respect existing limitations
                    if ($this->path != '') {
                        while ($objRoot->next()) {
                            if (strncmp($this->path . '/', $objRoot->path . '/', strlen($this->path) + 1) === 0) {
                                if ($objRoot->type == 'folder' || empty($this->arrValidFileTypes) || in_array($objRoot->extension, $this->arrValidFileTypes)) {
                                    $arrFound[] = $objRoot->path;
                                }
                                $arrPaths[] = $objRoot->type == 'folder' ? $objRoot->path : dirname($objRoot->path);
                            }
                        }
                    } elseif ($this->User->isAdmin) {
                        // Show all files to admins
                        while ($objRoot->next()) {
                            if ($objRoot->type == 'folder' || empty($this->arrValidFileTypes) || in_array($objRoot->extension, $this->arrValidFileTypes)) {
                                $arrFound[] = $objRoot->path;
                            }
                            $arrPaths[] = $objRoot->type == 'folder' ? $objRoot->path : dirname($objRoot->path);
                        }
                    } else {
                        if (is_array($this->User->filemounts)) {
                            while ($objRoot->next()) {
                                // Show only mounted folders to regular users
                                foreach ($this->User->filemounts as $path) {
                                    if (strncmp($path . '/', $objRoot->path . '/', strlen($path) + 1) === 0) {
                                        if ($objRoot->type == 'folder' || empty($this->arrValidFileTypes) || in_array($objRoot->extension, $this->arrValidFileTypes)) {
                                            $arrFound[] = $objRoot->path;
                                        }
                                        $arrPaths[] = $objRoot->type == 'folder' ? $objRoot->path : dirname($objRoot->path);
                                    }
                                }
                            }
                        }
                    }
                    $GLOBALS['TL_DCA']['tl_files']['list']['sorting']['root'] = array_unique($arrPaths);
                }
            } catch (\Exception $e) {
            }
        }
        $strNode = $objSessionBag->get('tl_files_picker');
        // Unset the node if it is not within the path (see #5899)
        if ($strNode != '' && $this->path != '') {
            if (strncmp($strNode . '/', $this->path . '/', strlen($this->path) + 1) !== 0) {
                $objSessionBag->remove('tl_files_picker');
            }
        }
        // Add the breadcrumb menu
        if (\Input::get('do') != 'files') {
            \Backend::addFilesBreadcrumb('tl_files_picker');
        }
        // Root nodes (breadcrumb menu)
        if (!empty($GLOBALS['TL_DCA']['tl_files']['list']['sorting']['root'])) {
            $root = $GLOBALS['TL_DCA']['tl_files']['list']['sorting']['root'];
            // Allow only those roots that are within the custom path
            if ($this->path != '') {
                $root = array_intersect(preg_grep('/^' . preg_quote($this->path, '/') . '(?:$|\\/)/', $root), $root);
                if (empty($root)) {
                    // Set all folders inside the custom path as root nodes
                    $root = array_map(function ($el) {
                        return $this->path . '/' . $el;
                    }, scan(TL_ROOT . '/' . $this->path));
                    // Hide the breadcrumb
                    $GLOBALS['TL_DCA']['tl_file']['list']['sorting']['breadcrumb'] = '';
                }
            }
            $nodes = $this->eliminateNestedPaths($root);
            foreach ($nodes as $node) {
                $tree .= $this->renderFiletree(TL_ROOT . '/' . $node, 0, true, true, $arrFound);
            }
        } elseif ($this->path != '') {
            $tree .= $this->renderFiletree(TL_ROOT . '/' . $this->path, 0, false, $this->isProtectedPath($this->path), $arrFound);
        } elseif ($this->User->isAdmin) {
            $tree .= $this->renderFiletree(TL_ROOT . '/' . \Config::get('uploadPath'), 0, false, true, $arrFound);
        } else {
            $nodes = $this->eliminateNestedPaths($this->User->filemounts);
            foreach ($nodes as $node) {
                $tree .= $this->renderFiletree(TL_ROOT . '/' . $node, 0, true, true, $arrFound);
            }
        }
        // Select all checkboxes
        if ($this->fieldType == 'checkbox') {
            $strReset = "\n" . '    <li class="tl_folder"><div class="tl_left">&nbsp;</div> <div class="tl_right"><label for="check_all_' . $this->strId . '" class="tl_change_selected">' . $GLOBALS['TL_LANG']['MSC']['selectAll'] . '</label> <input type="checkbox" id="check_all_' . $this->strId . '" class="tl_tree_checkbox" value="" onclick="Backend.toggleCheckboxGroup(this,\'' . $this->strName . '\')"></div><div style="clear:both"></div></li>';
        } else {
            $strReset = "\n" . '    <li class="tl_folder"><div class="tl_left">&nbsp;</div> <div class="tl_right"><label for="reset_' . $this->strId . '" class="tl_change_selected">' . $GLOBALS['TL_LANG']['MSC']['resetSelected'] . '</label> <input type="radio" name="' . $this->strName . '" id="reset_' . $this->strName . '" class="tl_tree_radio" value="" onfocus="Backend.getScrollOffset()"></div><div style="clear:both"></div></li>';
        }
        // Return the tree
        return '<ul class="tl_listing tree_view picker_selector' . ($this->strClass != '' ? ' ' . $this->strClass : '') . '" id="' . $this->strId . '" data-callback="reloadFiletree">
    <li class="tl_folder_top"><div class="tl_left">' . \Image::getHtml($GLOBALS['TL_DCA']['tl_files']['list']['sorting']['icon'] ?: 'filemounts.svg') . ' ' . (\Config::get('websiteTitle') ?: 'Contao Open Source CMS') . '</div> <div class="tl_right">&nbsp;</div><div style="clear:both"></div></li><li class="parent" id="' . $this->strId . '_parent"><ul>' . $tree . $strReset . '
  </ul></li></ul>';
    }