PHP File::loadMultiple方法代码示例

 /**
  * Tests the Drupal 6 user pictures to Drupal 8 migration.
  */
 public function testUserPictures()
 {
     $file_ids = array();
     foreach (entity_load('migration', 'd6_user_picture_file')->getIdMap() as $destination_ids) {
         $file_ids[] = reset($destination_ids);
     }
     $files = File::loadMultiple($file_ids);
     /** @var \Drupal\file\FileInterface $file */
     $file = array_shift($files);
     $this->assertIdentical('image-test.jpg', $file->getFilename());
     $this->assertIdentical('public://image-test.jpg', $file->getFileUri());
     $this->assertIdentical('2', $file->getOwnerId());
     $this->assertIdentical('1901', $file->getSize());
     $this->assertIdentical('image/jpeg', $file->getMimeType());
     $file = array_shift($files);
     $this->assertIdentical('image-test.png', $file->getFilename());
     $this->assertIdentical('public://image-test.png', $file->getFileUri());
     $this->assertIdentical('8', $file->getOwnerId());
     $this->assertFalse($files);
 }

 /**
  * This will test loading file data from the database.
  */
 function testMultiple()
 {
     // Create a new file entity.
     $file = $this->createFile('druplicon.txt', NULL, 'public');
     // Load by path.
     file_test_reset();
     $by_path_files = entity_load_multiple_by_properties('file', array('uri' => $file->getFileUri()));
     $this->assertFileHookCalled('load');
     $this->assertEqual(1, count($by_path_files), 'entity_load_multiple_by_properties() returned an array of the correct size.');
     $by_path_file = reset($by_path_files);
     $this->assertTrue($by_path_file->file_test['loaded'], 'file_test_file_load() was able to modify the file during load.');
     $this->assertEqual($by_path_file->id(), $file->id(), 'Loading by filepath got the correct fid.', 'File');
     // Load by fid.
     file_test_reset();
     $by_fid_files = File::loadMultiple(array($file->id()));
     $this->assertFileHooksCalled(array());
     $this->assertEqual(1, count($by_fid_files), '\\Drupal\\file\\Entity\\File::loadMultiple() returned an array of the correct size.');
     $by_fid_file = reset($by_fid_files);
     $this->assertTrue($by_fid_file->file_test['loaded'], 'file_test_file_load() was able to modify the file during load.');
     $this->assertEqual($by_fid_file->getFileUri(), $file->getFileUri(), 'Loading by fid got the correct filepath.', 'File');
 }

 /**
  * Test the file_save_upload() function.
  */
 function testNormal()
 {
     $max_fid_after = db_query('SELECT MAX(fid) AS fid FROM {file_managed}')->fetchField();
     $this->assertTrue($max_fid_after > $this->maxFidBefore, 'A new file was created.');
     $file1 = File::load($max_fid_after);
     $this->assertTrue($file1, 'Loaded the file.');
     // MIME type of the uploaded image may be either image/jpeg or image/png.
     $this->assertEqual(substr($file1->getMimeType(), 0, 5), 'image', 'A MIME type was set.');
     // Reset the hook counters to get rid of the 'load' we just called.
     file_test_reset();
     // Upload a second file.
     $image2 = current($this->drupalGetTestFiles('image'));
     $edit = array('files[file_test_upload]' => drupal_realpath($image2->uri));
     $this->drupalPostForm('file-test/upload', $edit, t('Submit'));
     $this->assertResponse(200, 'Received a 200 response for posted test file.');
     $this->assertRaw(t('You WIN!'));
     $max_fid_after = db_query('SELECT MAX(fid) AS fid FROM {file_managed}')->fetchField();
     // Check that the correct hooks were called.
     $this->assertFileHooksCalled(array('validate', 'insert'));
     $file2 = File::load($max_fid_after);
     $this->assertTrue($file2, 'Loaded the file');
     // MIME type of the uploaded image may be either image/jpeg or image/png.
     $this->assertEqual(substr($file2->getMimeType(), 0, 5), 'image', 'A MIME type was set.');
     // Load both files using File::loadMultiple().
     $files = File::loadMultiple(array($file1->id(), $file2->id()));
     $this->assertTrue(isset($files[$file1->id()]), 'File was loaded successfully');
     $this->assertTrue(isset($files[$file2->id()]), 'File was loaded successfully');
     // Upload a third file to a subdirectory.
     $image3 = current($this->drupalGetTestFiles('image'));
     $image3_realpath = drupal_realpath($image3->uri);
     $dir = $this->randomMachineName();
     $edit = array('files[file_test_upload]' => $image3_realpath, 'file_subdir' => $dir);
     $this->drupalPostForm('file-test/upload', $edit, t('Submit'));
     $this->assertResponse(200, 'Received a 200 response for posted test file.');
     $this->assertRaw(t('You WIN!'));
     $this->assertTrue(is_file('temporary://' . $dir . '/' . trim(drupal_basename($image3_realpath))));
 }

 /**
  * Render API callback: Expands the managed_file element type.
  *
  * Expands the file type to include Upload and Remove buttons, as well as
  * support for a default value.
  */
 public static function processManagedFile(&$element, FormStateInterface $form_state, &$complete_form)
 {
     // Append the '-upload' to the #id so the field label's 'for' attribute
     // corresponds with the file element.
     $element['#id'] .= '-upload';
     // This is used sometimes so let's implode it just once.
     $parents_prefix = implode('_', $element['#parents']);
     $fids = isset($element['#value']['fids']) ? $element['#value']['fids'] : [];
     // Set some default element properties.
     $element['#progress_indicator'] = empty($element['#progress_indicator']) ? 'none' : $element['#progress_indicator'];
     $element['#files'] = !empty($fids) ? File::loadMultiple($fids) : FALSE;
     $element['#tree'] = TRUE;
     $ajax_settings = ['path' => 'file/ajax', 'options' => ['query' => ['element_parents' => implode('/', $element['#array_parents']), 'form_build_id' => $complete_form['form_build_id']['#value']]], 'wrapper' => $element['#id'] . '-ajax-wrapper', 'effect' => 'fade', 'progress' => ['type' => $element['#progress_indicator'], 'message' => $element['#progress_message']]];
     // Set up the buttons first since we need to check if they were clicked.
     $element['upload_button'] = ['#name' => $parents_prefix . '_upload_button', '#type' => 'submit', '#value' => t('Upload'), '#attributes' => ['class' => ['js-hide']], '#validate' => [], '#submit' => ['file_managed_file_submit'], '#limit_validation_errors' => [$element['#parents']], '#ajax' => $ajax_settings, '#weight' => -5];
     // Force the progress indicator for the remove button to be either 'none' or
     // 'throbber', even if the upload button is using something else.
     $ajax_settings['progress']['type'] = $element['#progress_indicator'] == 'none' ? 'none' : 'throbber';
     $ajax_settings['progress']['message'] = NULL;
     $ajax_settings['effect'] = 'none';
     $element['remove_button'] = ['#name' => $parents_prefix . '_remove_button', '#type' => 'submit', '#value' => $element['#multiple'] ? t('Remove selected') : t('Remove'), '#validate' => [], '#submit' => ['file_managed_file_submit'], '#limit_validation_errors' => [$element['#parents']], '#ajax' => $ajax_settings, '#weight' => 1];
     $element['fids'] = ['#type' => 'hidden', '#value' => $fids];
     // Add progress bar support to the upload if possible.
     if ($element['#progress_indicator'] == 'bar' && ($implementation = file_progress_implementation())) {
         $upload_progress_key = mt_rand();
         if ($implementation == 'uploadprogress') {
             $element['UPLOAD_IDENTIFIER'] = ['#type' => 'hidden', '#value' => $upload_progress_key, '#attributes' => ['class' => ['file-progress']], '#weight' => -20];
         } elseif ($implementation == 'apc') {
             $element['APC_UPLOAD_PROGRESS'] = ['#type' => 'hidden', '#value' => $upload_progress_key, '#attributes' => ['class' => ['file-progress']], '#weight' => -20];
         }
         // Add the upload progress callback.
         $element['upload_button']['#ajax']['progress']['path'] = 'file/progress/' . $upload_progress_key;
     }
     // The file upload field itself.
     $element['upload'] = ['#name' => 'files[' . $parents_prefix . ']', '#type' => 'file', '#title' => t('Choose a file'), '#title_display' => 'invisible', '#size' => $element['#size'], '#multiple' => $element['#multiple'], '#theme_wrappers' => [], '#weight' => -10];
     if (!empty($fids) && $element['#files']) {
         foreach ($element['#files'] as $delta => $file) {
             $file_link = ['#theme' => 'file_link', '#file' => $file];
             if ($element['#multiple']) {
                 $element['file_' . $delta]['selected'] = ['#type' => 'checkbox', '#title' => drupal_render($file_link)];
             } else {
                 $element['file_' . $delta]['filename'] = $file_link + ['#weight' => -10];
             }
         }
     }
     // Add the extension list to the page as JavaScript settings.
     if (isset($element['#upload_validators']['file_validate_extensions'][0])) {
         $extension_list = implode(',', array_filter(explode(' ', $element['#upload_validators']['file_validate_extensions'][0])));
         $element['upload']['#attached']['js'] = [['type' => 'setting', 'data' => ['file' => ['elements' => ['#' . $element['#id'] => $extension_list]]]]];
     }
     // Prefix and suffix used for Ajax replacement.
     $element['#prefix'] = '<div id="' . $element['#id'] . '-ajax-wrapper">';
     $element['#suffix'] = '</div>';
     return $element;
 }

 /**
  * Implements SourceInterface::getAttachments().
  */
 function getAttachments()
 {
     if ($cache = $this->cache->get('data', 'attachments')) {
         return $cache;
     }
     $attachments = array();
     $build = $this->build();
     $fids = array();
     foreach ($this->getEntity()->getFieldDefinitions() as $field_name => $field_definition) {
         // @todo: Find a better way to support more field types.
         // Only add fields of type file which are enabled for the current view
         // mode as attachments.
         if ($field_definition->getType() == 'file' && isset($build[$field_name])) {
             if ($items = $this->getEntity()->get($field_name)) {
                 foreach ($items as $item) {
                     $fids[] = $item->target_id;
                 }
             }
         }
     }
     if (!empty($fids)) {
         $attachments = File::loadMultiple($fids);
     }
     $this->cache->set('data', 'attachments', $attachments);
     return $attachments;
 }

 /**
  * Render API callback: Expands the managed_file element type.
  *
  * Expands the file type to include Upload and Remove buttons, as well as
  * support for a default value.
  */
 public static function processManagedFile(&$element, FormStateInterface $form_state, &$complete_form)
 {
     // This is used sometimes so let's implode it just once.
     $parents_prefix = implode('_', $element['#parents']);
     $fids = isset($element['#value']['fids']) ? $element['#value']['fids'] : [];
     // Set some default element properties.
     $element['#progress_indicator'] = empty($element['#progress_indicator']) ? 'none' : $element['#progress_indicator'];
     $element['#files'] = !empty($fids) ? File::loadMultiple($fids) : FALSE;
     $element['#tree'] = TRUE;
     // Generate a unique wrapper HTML ID.
     $ajax_wrapper_id = Html::getUniqueId('ajax-wrapper');
     $ajax_settings = ['callback' => [get_called_class(), 'uploadAjaxCallback'], 'options' => ['query' => ['element_parents' => implode('/', $element['#array_parents'])]], 'wrapper' => $ajax_wrapper_id, 'effect' => 'fade', 'progress' => ['type' => $element['#progress_indicator'], 'message' => $element['#progress_message']]];
     // Set up the buttons first since we need to check if they were clicked.
     $element['upload_button'] = ['#name' => $parents_prefix . '_upload_button', '#type' => 'submit', '#value' => t('Upload'), '#attributes' => ['class' => ['js-hide']], '#validate' => [], '#submit' => ['file_managed_file_submit'], '#limit_validation_errors' => [$element['#parents']], '#ajax' => $ajax_settings, '#weight' => -5];
     // Force the progress indicator for the remove button to be either 'none' or
     // 'throbber', even if the upload button is using something else.
     $ajax_settings['progress']['type'] = $element['#progress_indicator'] == 'none' ? 'none' : 'throbber';
     $ajax_settings['progress']['message'] = NULL;
     $ajax_settings['effect'] = 'none';
     $element['remove_button'] = ['#name' => $parents_prefix . '_remove_button', '#type' => 'submit', '#value' => $element['#multiple'] ? t('Remove selected') : t('Remove'), '#validate' => [], '#submit' => ['file_managed_file_submit'], '#limit_validation_errors' => [$element['#parents']], '#ajax' => $ajax_settings, '#weight' => 1];
     $element['fids'] = ['#type' => 'hidden', '#value' => $fids];
     // Add progress bar support to the upload if possible.
     if ($element['#progress_indicator'] == 'bar' && ($implementation = file_progress_implementation())) {
         $upload_progress_key = mt_rand();
         if ($implementation == 'uploadprogress') {
             $element['UPLOAD_IDENTIFIER'] = ['#type' => 'hidden', '#value' => $upload_progress_key, '#attributes' => ['class' => ['file-progress']], '#weight' => -20];
         } elseif ($implementation == 'apc') {
             $element['APC_UPLOAD_PROGRESS'] = ['#type' => 'hidden', '#value' => $upload_progress_key, '#attributes' => ['class' => ['file-progress']], '#weight' => -20];
         }
         // Add the upload progress callback.
         $element['upload_button']['#ajax']['progress']['url'] = Url::fromRoute('file.ajax_progress', ['key' => $upload_progress_key]);
     }
     // The file upload field itself.
     $element['upload'] = ['#name' => 'files[' . $parents_prefix . ']', '#type' => 'file', '#title' => t('Choose a file'), '#title_display' => 'invisible', '#size' => $element['#size'], '#multiple' => $element['#multiple'], '#theme_wrappers' => [], '#weight' => -10, '#error_no_message' => TRUE];
     if (!empty($fids) && $element['#files']) {
         foreach ($element['#files'] as $delta => $file) {
             $file_link = ['#theme' => 'file_link', '#file' => $file];
             if ($element['#multiple']) {
                 $element['file_' . $delta]['selected'] = ['#type' => 'checkbox', '#title' => \Drupal::service('renderer')->renderPlain($file_link)];
             } else {
                 $element['file_' . $delta]['filename'] = $file_link + ['#weight' => -10];
             }
             // Anonymous users who have uploaded a temporary file need a
             // non-session-based token added so $this->valueCallback() can check
             // that they have permission to use this file on subsequent submissions
             // of the same form (for example, after an Ajax upload or form
             // validation error).
             if ($file->isTemporary() && \Drupal::currentUser()->isAnonymous()) {
                 $element['file_' . $delta]['fid_token'] = array('#type' => 'hidden', '#value' => Crypt::hmacBase64('file-' . $delta, \Drupal::service('private_key')->get() . Settings::getHashSalt()));
             }
         }
     }
     // Add the extension list to the page as JavaScript settings.
     if (isset($element['#upload_validators']['file_validate_extensions'][0])) {
         $extension_list = implode(',', array_filter(explode(' ', $element['#upload_validators']['file_validate_extensions'][0])));
         $element['upload']['#attached']['drupalSettings']['file']['elements']['#' . $element['#id']] = $extension_list;
     }
     // Let #id point to the file element, so the field label's 'for' corresponds
     // with it.
     $element['#id'] =& $element['upload']['#id'];
     // Prefix and suffix used for Ajax replacement.
     $element['#prefix'] = '<div id="' . $ajax_wrapper_id . '">';
     $element['#suffix'] = '</div>';
     return $element;
 }