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MDL-13155 reworked get_all_instances_in_course() and get_all_instances_in_courses(), based on patch by Tim

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skodak
2008-02-05 21:34:08 +00:00
parent d916897125
commit f1bd9b5ecf
1 changed files with 47 additions and 94 deletions
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lib/datalib.php
+47 -94
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@@ -1664,65 +1664,70 @@ function get_coursemodules_in_course($modulename, $courseid, $extrafields='') {
md.name = '$modulename' AND
md.id = cm.module");
}
/**
* Returns an array of all the active instances of a particular module in given courses, sorted in the order they are defined
*
* Returns an array of all the active instances of a particular
* module in given courses, sorted in the order they are defined
* in the course. Returns false on any errors.
* in the course. Returns an empty array on any errors.
*
* @uses $CFG
* @param string $modulename The name of the module to get instances for
* @param array $courses This depends on an accurate $course->modinfo
* @return array of instances
* The returned objects includle the columns cw.section, cm.visible,
* cm.groupmode and cm.groupingid, cm.groupmembersonly, and are indexed by cm.id.
*
* @param string $modulename The name of the module to get instances for
* @param array $courses an array of course objects.
* @return array of module instance objects, including some extra fields from the course_modules
* and course_sections tables, or an empty array if an error occurred.
*/
function get_all_instances_in_courses($modulename, $courses, $userid=NULL, $includeinvisible=false) {
global $CFG;
if (empty($courses) || !is_array($courses) || count($courses) == 0) {
return array();
}
if (!$rawmods = get_records_sql("SELECT cm.id as coursemodule, m.*,cw.section,cm.visible as visible,cm.groupmode, cm.course
FROM {$CFG->prefix}course_modules cm,
{$CFG->prefix}course_sections cw,
{$CFG->prefix}modules md,
{$CFG->prefix}$modulename m
WHERE cm.course IN (".implode(',',array_keys($courses)).") AND
cm.instance = m.id AND
cm.section = cw.id AND
md.name = '$modulename' AND
md.id = cm.module")) {
return array();
}
$outputarray = array();
foreach ($courses as $course) {
if ($includeinvisible) {
$invisible = -1;
} else if (has_capability('moodle/course:viewhiddencourses', get_context_instance(CONTEXT_COURSE, $course->id), $userid)) {
// Usually hide non-visible instances from students
$invisible = -1;
} else {
$invisible = 0;
}
if (empty($courses) || !is_array($courses) || count($courses) == 0) {
return $outputarray;
}
/// Casting $course->modinfo to string prevents one notice when the field is null
if (!$modinfo = unserialize((string)$course->modinfo)) {
if (!$rawmods = get_records_sql("SELECT cm.id AS coursemodule, m.*, cw.section, cm.visible AS visible,
cm.groupmode, cm.groupingid, cm.groupmembersonly
FROM {$CFG->prefix}course_modules cm,
{$CFG->prefix}course_sections cw,
{$CFG->prefix}modules md,
{$CFG->prefix}$modulename m
WHERE cm.course IN (".implode(',',array_keys($courses)).") AND
cm.instance = m.id AND
cm.section = cw.id AND
md.name = '$modulename' AND
md.id = cm.module")) {
return $outputarray;
}
require_once($CFG->dirroot.'/course/lib.php');
foreach ($courses as $course) {
$modinfo = get_fast_modinfo($course, $userid);
if (empty($modinfo->instances[$modulename])) {
continue;
}
foreach ($modinfo as $mod) {
if ($mod->mod == $modulename and $mod->visible > $invisible) {
$instance = $rawmods[$mod->cm];
if (!empty($mod->extra)) {
$instance->extra = $mod->extra;
}
$outputarray[] = $instance;
foreach ($modinfo->instances[$modulename] as $cm) {
if (!$includeinvisible and !$cm->uservisible) {
continue;
}
if (!isset($rawmods[$cm->id])) {
continue;
}
$instance = $rawmods[$cm->id];
if (!empty($cm->extra)) {
$instance->extra = urlencode($cm->extra); // bc compatibility
}
$outputarray[] = $instance;
}
}
return $outputarray;
}
/**
@@ -1734,67 +1739,15 @@ function get_all_instances_in_courses($modulename, $courses, $userid=NULL, $incl
* in the course. Returns an empty array on any errors.
*
* The returned objects includle the columns cw.section, cm.visible,
* cm.groupmode and cm.groupingid, and are indexed by cm.id.
* cm.groupmode and cm.groupingid, cm.groupmembersonly, and are indexed by cm.id.
*
* @uses $CFG
* @param string $modulename The name of the module to get instances for
* @param object $course This depends on an accurate $course->modinfo
* @param object $course The course obect.
* @return array of module instance objects, including some extra fields from the course_modules
* and course_sections tables, or an empty array if an error occurred.
*/
function get_all_instances_in_course($modulename, $course, $userid=NULL, $includeinvisible=false) {
global $CFG;
if (empty($course->modinfo)) {
return array();
}
if (!$modinfo = unserialize((string)$course->modinfo)) {
return array();
}
if (!$rawmods = get_records_sql("SELECT cm.id as coursemodule, m.*,cw.section,cm.visible as visible,cm.groupmode,cm.groupingid
FROM {$CFG->prefix}course_modules cm,
{$CFG->prefix}course_sections cw,
{$CFG->prefix}modules md,
{$CFG->prefix}$modulename m
WHERE cm.course = '$course->id' AND
cm.instance = m.id AND
cm.section = cw.id AND
md.name = '$modulename' AND
md.id = cm.module")) {
return array();
}
if ($includeinvisible) {
$invisible = -1;
} else if (has_capability('moodle/course:viewhiddenactivities', get_context_instance(CONTEXT_COURSE, $course->id), $userid)) {
// Usually hide non-visible instances from students
$invisible = -1;
} else {
$invisible = 0;
}
$outputarray = array();
foreach ($modinfo as $mod) {
$mod->id = $mod->cm;
$mod->course = $course->id;
if (!groups_course_module_visible($mod)) {
continue;
}
if ($mod->mod == $modulename and $mod->visible > $invisible) {
$instance = $rawmods[$mod->cm];
if (!empty($mod->extra)) {
$instance->extra = $mod->extra;
}
$outputarray[] = $instance;
}
}
return $outputarray;
return get_all_instances_in_courses($modulename, array($course->id => $course), $userid, $includeinvisible);
}