Drupal创建自定义表单，上传文件代码

Posted 2020-07-09

Drupal中创建自定义表单，用来上传文件，对上传文件做一些操作。以下是放在Module中的代码：

一、菜单建立表单路径

/** Implementation of hook_menu(). */
function moduleName_menu ()
{
  $items                          = array();
  $items[‘admin/import‘] = array(
    ‘title‘ => ‘title‘,
    ‘page callback‘ => ‘drupal_get_form‘,
    ‘page arguments‘ => array(‘importform‘),
    ‘access callback‘ => TRUE,
    ‘type‘ => MENU_LOCAL_TASK,
    ‘context‘ => MENU_CONTEXT_INLINE, // 只在菜单里显示
  );
  return $items;
}

二、生成表单

function importform($form, &$form_state) {
  $form = array();
  $form[‘file‘] = array(
    ‘#type‘ => ‘file‘,
    ‘#title‘ => ‘题库模板文件‘,
    ‘#description‘ => "请上传题目录入文件, 允许的文件格式为: xlsx",
  );
  $form[‘submit‘] = array(
    ‘#type‘ => ‘submit‘,
    ‘#value‘ => ‘导入‘,
  );

  return $form;
}

三、验证表单

function importform_validate($form, &$form_state) {
  $file = file_save_upload(‘file‘, array(
    ‘file_validate_extensions‘ => array(‘xlsx‘),
  ));
  if ($file) {
    if ($file = file_move($file, ‘public://‘)) {
      $form_state[‘values‘][‘file‘] = $file;
    }
    else {
      form_set_error(‘file‘, t(‘文件上传失败！‘));
    }
  }
  else {
    form_set_error(‘file‘, t(‘没有文件被上传！‘));
  }
}

四、上传表单

function importform_submit($form, &$form_state) {
  $file=$form_state[‘values‘][‘file‘];
  unset($form_state[‘values‘][‘file‘]);
  $file->status = FILE_STATUS_PERMANENT;
  file_save($file);
  //这边可以做一些逻辑事情
  drupal_set_message(t(‘@filename 该文件已上传成功！‘, array(‘@filename‘ => $file->filename)));
}