Drupal 7 保留文件上传 [英] Drupal 7 retain file upload

问题描述

我有一个文件上传表单

如何在出现其他验证错误时保留此文件，以便用户不必再次上传文件?

how can I retain this file when there are other validation errors so that the user doesn't have to upload the file again?

我在我的验证函数中尝试了这个，但它不起作用:

I tried this in my validation function but it doesn't work:

function mymodule_someform_validate($form, &$form_state) {
  $form_state["values"]["some_field"] = some_value;
}

$form_state["values"] 变量在我的表单定义函数中不可用 - mymodule_someform($form, &$form_state)

the $form_state["values"] variable is not available in my form definition function - mymodule_someform($form, &$form_state)

有什么想法吗?

推荐答案

只需使用 managed_file 类型，它就会为您完成:

Just use the managed_file type, it'll do it for you:

$form['my_file_field'] = array(
  '#type' => 'managed_file',
  '#title' => 'File',
  '#upload_location' => 'public://my-folder/'
);

然后在您的提交处理程序中:

And then in your submit handler:

// Load the file via file.fid.
$file = file_load($form_state['values']['my_file_field']);

// Change status to permanent.
$file->status = FILE_STATUS_PERMANENT;

// Save.
file_save($file);

如果验证失败并且用户离开表单，该文件将在几个小时后自动删除(因为 file_managed 表中没有 FILE_STATUS_PERMANENT 的所有文件都是).如果验证没有失败，提交处理程序将运行，文件将在系统中被标记为永久.

If the validation fails and the user leaves the form, the file will be automatically deleted a few hours later (as all files in the file_managed table without FILE_STATUS_PERMANENT are). If the validation doesn't fail, the submit handler will be run and the file will be marked as permanent in the system.

这篇关于Drupal 7 保留文件上传的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！