Database error when using custom profile fields #123
Description
When
- you have custom profile fields (/user/profile/index.php)
- enable them in the setting "showuseridentity" (/admin/settings.php?section=userpolicies)
- open a course and add the completion progress block
- click on "Overview of students" button
Then
- a database reading error occurs
Possible solution
- include the missing joins and params of the user identity fields in sql statement
- or exclude the custom profile fields in the user identity fields