Moodle in English: Show IDnumber on profile but hide from students

Hi All,
Please move me if I'm in the wrong forum.

Our intent is to help teachers distinguish between many students with same last names whose first names may have been changed by the students.
Example:

Jinx Chen (really Alexander Chen)
Amy Chen (really Jocelyn A Chen)
1 Chen (really Sun Chen)

Our unique identifier is the IDnumber.

Courtesy of How can I show ID Number in the user profile form? we know how to put the idnumber on the profile, but, for security reasons, we don't want students to be able to view the idnumber. The IDnumber is identical to username in our system.

How can we limit viewing of IDnumber to teachers and administrators?

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Re: Show IDnumber on profile but hide from students

by ben reynolds - Thursday, 19 February 2009, 1:07 AM

Never mind. We figured out how to do this.

Added at around line 252 in user/view.php

if ($user->idnumber) {
print_row(get_string("idnumber").":", "$user->idnumber");
}

to get the full modified form of
if (has_capability('moodle/user:viewhiddendetails', $coursecontext)) {
if ($user->address) {
print_row(get_string("address").":", "$user->address");
}
if ($user->phone1) {
print_row(get_string("phone").":", "$user->phone1");
}
if ($user->phone2) {
print_row(get_string("phone2").":", "$user->phone2");
}
if ($user->idnumber) {
print_row(get_string("idnumber").":", "$user->idnumber");
}

}

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