function dialogue_get_available_users($dialogue, $context, $editconversationid)
{
static $displaystudentindication = false;
// display Student indication in multi select lstbox ?
if (!($course = get_record("course", "id", $dialogue->course))) {
error("Course is misconfigured");
}
$hascapopen = has_capability('mod/dialogue:participate', $context);
$hascapmanage = has_capability('mod/dialogue:manage', $context);
switch ($dialogue->dialoguetype) {
case DIALOGUETYPE_TEACHERSTUDENT:
// teacher to student
if ($hascapmanage) {
return dialogue_get_available_students($dialogue, $context, $editconversationid);
} else {
return dialogue_get_available_teachers($dialogue, $context, $editconversationid);
}
case DIALOGUETYPE_STUDENTSTUDENT:
// student to student
if (!$hascapmanage && $hascapopen) {
return dialogue_get_available_students($dialogue, $context, $editconversationid);
} else {
return;
}
case DIALOGUETYPE_EVERYONE:
// everyone
if ($teachers = dialogue_get_available_teachers($dialogue, $context, $editconversationid)) {
foreach ($teachers as $userid => $name) {
$names[$userid] = $name;
// ." (".get_string('teacher','dialogue') . ")";
}
$names[-1] = "-------------";
}
if ($students = dialogue_get_available_students($dialogue, $context, $editconversationid)) {
foreach ($students as $userid => $name) {
//$names[$userid] = (is_numeric($userid) && $displaystudentindication) ? $name." (".get_string('student','dialogue') . ")" : $name;
$names[$userid] = $name;
}
}
if (isset($names)) {
return $names;
}
return;
}
}
/**
* Return a list of users that the current user is able to open a dialogue with
*
* Makes calls to dialogue_get_available_students() and dialogue_get_available_teachers()
* depending on the capability and type of dialogue
* @param object $dialogue
* @param object $context for a user in this activity
* @param int $editconversationid
* @return array usernames and ids
*/
function dialogue_get_available_users($dialogue, $context, $editconversationid)
{
if (!($course = get_record('course', 'id', $dialogue->course))) {
error('Course is misconfigured');
}
$hascapopen = has_capability('mod/dialogue:participate', $context);
$hascapmanage = has_capability('mod/dialogue:manage', $context);
switch ($dialogue->dialoguetype) {
case DIALOGUETYPE_TEACHERSTUDENT:
// teacher to student
if ($hascapmanage) {
return dialogue_get_available_students($dialogue, $context, $editconversationid);
} else {
return dialogue_get_available_teachers($dialogue, $context, $editconversationid);
}
case DIALOGUETYPE_STUDENTSTUDENT:
// student to student
if (!$hascapmanage && $hascapopen) {
return dialogue_get_available_students($dialogue, $context, $editconversationid);
} else {
return;
// dont return any students if this is a teacher, ie has manage capability
}
case DIALOGUETYPE_EVERYONE:
// everyone
if ($teachers = dialogue_get_available_teachers($dialogue, $context, $editconversationid)) {
foreach ($teachers as $userid => $name) {
$names[$userid] = $name;
}
$names[-1] = '-------------';
}
if ($students = dialogue_get_available_students($dialogue, $context, $editconversationid)) {
foreach ($students as $userid => $name) {
$names[$userid] = $name;
}
}
if (isset($names)) {
return $names;
}
return;
}
}