我试图在moodle v3注册表单中添加上传文件输入$mform->addElement('filepicker' .... )在moodle/login/signup_form.php中的应用
但是我得到这个错误:Error code: noguest
Stack trace:
line 488 of /lib/setuplib.php: moodle_exception thrown
line 348 of /lib/filelib.php: call to print_error()
line 131 of /lib/form/filepicker.php: call to file_get_unused_draft_itemid()
line 189 of /lib/pear/HTML/QuickForm/Renderer/Tableless.php: call to MoodleQuickForm_filepicker->toHtml()
line 2806 of /lib/formslib.php: call to HTML_QuickForm_Renderer_Tableless->renderElement()
line 408 of /lib/pear/HTML/QuickForm/element.php: call to MoodleQuickForm_Renderer->renderElement()
line 1639 of /lib/pear/HTML/QuickForm.php: call to HTML_QuickForm_element->accept()
line 1714 of /lib/formslib.php: call to HTML_QuickForm->accept()
line 1682 of /lib/pear/HTML/QuickForm.php: call to MoodleQuickForm->accept()
line 442 of /lib/pear/HTML/Common.php: call to HTML_QuickForm->toHtml()
line 204 of /lib/pear/HTML/QuickForm/DHTMLRulesTableless.php: call to HTML_Common->display()
line 933 of /lib/formslib.php: call to HTML_QuickForm_DHTMLRulesTableless->display()
line 117 of /login/signup.php: call to moodleform->display()
所以我认为这意味着guest用户不允许使用filepicker
那么如何解决这个问题呢?
在moodle中不允许来宾和未登录的用户上传任何内容。
如果你还想在注册表单中添加文件拾取器，那么你需要修改以下代码:
1./lib/filelib.php (edit following function) function file_get_unused_draft_itemid() {
if (isguestuser() or !isloggedin()) {
// print_error('noguest');
}
}
在短注释"print_error('noguest')"行
/lib/dml/moodle_database.php(编辑以下函数)
public function get_record_select($table, $select, array $params=null,$fields='*',$strictness=IGNORE_MISSING){
if ($select) {
$select = "WHERE $select";
}
try {
return $this->get_record_sql("SELECT $fields FROM {" . $table . "} $select", $params, $strictness);
} catch (dml_missing_record_exception $e) {
if (!isloggedin()){}
else{
// create new exception which will contain correct table name
throw new dml_missing_record_exception($table, $e->sql, $e->params);
}
}
}
将以上代码编辑到各自的文件中，您将得到解决方案。
万一有人需要答案，我终于找到了一个解决方案。
但是首先客户用户不能使用filepaicker/filemanager的原因是文件区的草稿文件是基于userid存储的，客户用户不应该在系统中存储数据(否则不同的人登录为'guest'可能会访问彼此的草稿文件)。
解决方案是:使用$mform->addElement('file' .... )，并使用RegEx与$mform->addRule()进行验证，如下所示:
$mform->addRule('document_1', 'Error (allowed extensions are .jpg, .png and .pdf)', 'filename', 'myregex');