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locallib.php
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<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* Internal library of functions for module pcast
*
* All the pcast specific functions, needed to implement the module
* logic, should go here. Never include this file from your lib.php!
*
* @package mod_pcast
* @copyright 2010 Stephen Bourget
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
/**
* Function to get information from media files
* used for <itunes::duration>
* @global stdClass $CFG
* @param string $filename
* @return array
*/
function pcast_get_media_information($filename) {
global $CFG;
include_once($CFG->dirroot.'/mod/pcast/lib/getid3/getid3/getid3.php');
// Initialize getID3 engine
$getid3 = new getID3;
// Analyze file and store returned data in $ThisFileInfo
$mp3info = $getid3->analyze($filename);
return $mp3info; // playtime in minutes:seconds, formatted string
}
/**
* Get the complete file path based on the SHA1 hash
*
* @global stdClass $CFG
* @param object $filehash (This is the content hash)
* @return path to file in dataroot, false on error
**/
function pcast_file_path_lookup ($filehash) {
global $CFG;
if (!empty($filehash)){
$hash1 = substr($filehash, 0, 2);
$hash2 = substr($filehash, 2, 2);
$filepath = $CFG->dataroot . '/filedir/' . $hash1 .'/' .$hash2 . '/' . $filehash;
return $filepath;
} else {
return false;
}
}
/**
* Prints the approval menu
* @param object $cm
* @param object $pcast
* @param string $mode
* @param string $hook
* @param string $sortkey
* @param string $sortorder
*/
function pcast_print_approval_menu($cm, $pcast, $mode, $hook, $sortkey = '', $sortorder = '') {
echo html_writer::tag('div', get_string("explainalphabet", "pcast"), array('class' => 'pcastexplain'));
echo html_writer::empty_tag('br');
pcast_print_special_links($cm, $pcast, $mode, $hook);
pcast_print_alphabet_links($cm, $pcast, $mode, $hook,$sortkey, $sortorder);
pcast_print_all_links($cm, $pcast, $mode, $hook);
pcast_print_sorting_links($cm, $mode, $sortkey, $sortorder, $hook);
}
/**
* Prints the alphabet menu
* @param object $cm
* @param object $pcast
* @param string $hook
* @param string $sortkey
* @param string $sortorder
*/
function pcast_print_alphabet_menu($cm, $pcast, $mode, $hook, $sortkey='', $sortorder = '') {
echo html_writer::tag('div', get_string("explainalphabet", "pcast"), array('class' => 'pcastexplain'));
echo html_writer::empty_tag('br');
pcast_print_special_links($cm, $pcast, $mode, $hook);
pcast_print_alphabet_links($cm, $pcast, $mode, $hook, $sortkey, $sortorder);
pcast_print_all_links($cm, $pcast, $mode, $hook);
}
/**
* Prints the date menu
* @param object $cm
* @param object $pcast
* @param string $mode
* @param string $hook
* @param string $sortkey
* @param string $sortorder
*/
function pcast_print_date_menu($cm, $pcast, $mode, $hook, $sortkey='', $sortorder = '') {
pcast_print_sorting_links($cm, $mode, $sortkey, $sortorder, $hook);
}
/**
* Prints the author menu link
* @param object $cm
* @param object $pcast
* @param string mode
* @param string $hook
* @param string $sortkey
* @param string $sortorder
*/
function pcast_print_author_menu($cm, $pcast,$mode, $hook, $sortkey = '', $sortorder = '') {
echo html_writer::tag('div', get_string("explainalphabet", "pcast"), array('class' => 'pcastexplain'));
echo html_writer::empty_tag('br');
if(empty($sortkey)) {
$sortkey = PCAST_AUTHOR_LNAME;
}
if(empty($sortorder)) {
$sortkey = 'asc';
}
pcast_print_alphabet_links($cm, $pcast, $mode, $hook, $sortkey, $sortorder);
pcast_print_all_links($cm, $pcast, $mode, $hook);
pcast_print_sorting_links($cm, $mode, $sortkey, $sortorder, $hook);
}
/**
* Prints the category menu
* @global stdClass
* @global stdClass
* @param object $cm
* @param object $pcast
* @param string $hook
* @param object $category
* @todo This should use html_writer::tag()
* @todo These styles should not be hard coded
*/
function pcast_print_categories_menu($cm, $pcast, $hook=PCAST_SHOW_ALL_CATEGORIES) {
global $CFG, $DB, $OUTPUT;
$context = get_context_instance(CONTEXT_MODULE, $cm->id);
echo '<table border="0" width="100%">';
echo '<tr>';
echo '<td class="pcast-menu20">';
echo '</td>';
echo '<td class="pcast-menu60">';
echo '<span class="pcast-bold">';
$menu = array();
$menu[PCAST_SHOW_ALL_CATEGORIES] = get_string("allcategories", "pcast");
$menu[PCAST_SHOW_NOT_CATEGORISED] = get_string("notcategorised", "pcast");
// Generate Top Categorys;
if($topcategories = $DB->get_records("pcast_itunes_categories")) {
foreach ($topcategories as $topcategory) {
$value = (int)$topcategory->id * 1000;
$menu[(int)$value] = $topcategory->name;
}
}
// Generate Secondary Category
if($nestedcategories = $DB->get_records("pcast_itunes_nested_cat")) {
foreach ($nestedcategories as $nestedcategory) {
$value = (int)$nestedcategory->topcategoryid * 1000;
$value = $value + (int)$nestedcategory->id;
$menu[(int)$value] = ' ' .$nestedcategory->name;
}
}
ksort($menu);
// Print the category name
if ( $hook == PCAST_SHOW_NOT_CATEGORISED ) {
echo get_string("episodeswithoutcategory", "pcast");
} else if ( $hook == PCAST_SHOW_ALL_CATEGORIES ) {
echo get_string("allcategories", "pcast");
} else {
// Lookup the category name by 4 digit ID
$category->category = $hook;
$category = pcast_get_itunes_categories($category, $pcast);
// Print the category names in the format top: nested
if($category->nestedcategory == 0) {
echo $menu[(int)$hook];
} else {
//TODO: convert to lang file later
echo $menu[(int)$category->topcategory*1000].': '.$menu[(int)$hook];
}
}
echo '</span></td>';
echo '<td class="pcast-menu20">';
$select = new single_select(new moodle_url("/mod/pcast/view.php", array('id'=>$cm->id, 'mode'=>PCAST_CATEGORY_VIEW)), 'hook', $menu, $hook, null, "catmenu");
echo $OUTPUT->render($select);
echo '</td>';
echo '</tr>';
echo '</table>';
}
/**
* Prints the link to display all episodes.
* @global stdClass $CFG
* @param object $cm
* @param object $pcast
* @param string $mode
* @param string $hook
*/
function pcast_print_all_links($cm, $pcast, $mode, $hook) {
global $CFG;
$strallentries = get_string("allentries", "pcast");
if ( $hook == 'ALL' ) {
echo html_writer::tag('span', $strallentries, array('class' => 'pcast-bold'));
} else {
$strexplainall = strip_tags(get_string("explainall","pcast"));
$url = new moodle_url('/mod/pcast/view.php', array('id'=>$cm->id, 'mode'=>$mode, 'hook'=>'ALL'));
echo html_writer::tag('a', $strallentries, array('title'=>$strexplainall,'href'=>$url));
}
}
/**
* Prints the symbols links used to sort the episodes.
* @global stdClass $CFG
* @param object $cm
* @param object $pcast
* @param string $mode
* @param string $hook
*/
function pcast_print_special_links($cm, $pcast, $mode, $hook) {
global $CFG;
$strspecial = get_string("special", "pcast");
if ( $hook == 'SPECIAL' ) {
echo html_writer::tag('span', $strspecial, array('class' => 'pcast-bold'));
echo " | ";
} else {
$strexplainspecial = strip_tags(get_string("explainspecial", "pcast"));
$url = new moodle_url('/mod/pcast/view.php', array('id'=>$cm->id, 'mode'=>$mode, 'hook'=>'SPECIAL'));
echo html_writer::tag('a', $strspecial, array('title'=>$strexplainspecial,'href'=>$url));
echo " | ";
}
}
/**
* Prints the individual letter links used to sort the episodes.
* @global stdClass $CFG
* @param object $pcast
* @param string $mode
* @param string $hook
* @param string $sortkey
* @param string $sortorder
*/
function pcast_print_alphabet_links($cm, $pcast, $mode, $hook, $sortkey, $sortorder) {
global $CFG;
$alphabet = explode(",", get_string('alphabet', 'langconfig'));
$letters_by_line = 26;
for ($i = 0; $i < count($alphabet); $i++) {
if ( $hook == $alphabet[$i] and $hook) {
echo html_writer::tag('span', $alphabet[$i], array('class' => 'pcast-bold'));
} else {
$strexplainspecial = strip_tags(get_string("explainspecial", "pcast"));
$url = new moodle_url('/mod/pcast/view.php',
array('id'=>$cm->id, 'mode'=>$mode, 'hook'=>urlencode($alphabet[$i]), 'sortkey'=>$sortkey, 'sortorder'=>$sortorder));
echo html_writer::tag('a', $alphabet[$i], array('href'=>$url));
}
if ((int) ($i % $letters_by_line) != 0 or $i == 0) {
echo ' | ';
} else {
echo html_writer::empty_tag('br');
}
}
}
/**
* Prints the sort by ASC / DSC links on the view page.
* @global stdClass $CFG
* @global stdClass $OUTPUT
* @param object $cm
* @param string $mode
* @param string $sortkey
* @param string $sortorder
*/
function pcast_print_sorting_links($cm, $mode, $sortkey = '',$sortorder = '', $hook='') {
global $CFG, $OUTPUT;
//Get our strings
$asc = get_string("ascending", "pcast");
$desc = get_string("descending", "pcast");
$strsortcreation = get_string("sortbycreation", "pcast");
$strsortlastupdate = get_string("sortbylastupdate", "pcast");
$strsortfname = get_string("firstname");;
$strsortlname = get_string("lastname");
$strsortby = get_string("sortby", "pcast");
$strsep = get_string('labelsep', 'langconfig');
// Determine our sort order ASC or DESC
switch ($sortorder) {
case 'desc':
$currentorder = $desc;
$neworder = 'asc';
$strchangeto = get_string('changeto', 'pcast', $asc);
$icon = html_writer::empty_tag('img', array('src'=>$OUTPUT->pix_url($sortorder, 'pcast'),
'class'=>'icon',
'alt'=>$strchangeto));
break;
case 'asc':
$currentorder = $asc;
$neworder = 'desc';
$strchangeto = get_string('changeto', 'pcast', $desc);
$icon = html_writer::empty_tag('img', array('src'=>$OUTPUT->pix_url($sortorder, 'pcast'),
'class'=>'icon',
'alt'=>$strchangeto));
break;
default:
// Pick some reasonable defaults if sort order is not specified
switch ($sortkey) {
case PCAST_DATE_UPDATED:
case PCAST_DATE_CREATED:
case PCAST_AUTHOR_FNAME:
case PCAST_AUTHOR_LNAME:
$strchangeto = get_string('changeto', 'pcast', $asc);
$neworder = 'asc';
$icon = html_writer::empty_tag('img', array('src'=>$OUTPUT->pix_url('asc', 'pcast'),
'class'=>'icon',
'alt'=>$strchangeto));
$currentorder = '';
break;
default:
$icon = "";
$neworder = '';
$currentorder = '';
$strchangeto = get_string('changeto', 'pcast', $asc);
break;
}
}
switch ($sortkey) {
case PCAST_DATE_UPDATED:
//URLs
$url1 = new moodle_url('/mod/pcast/view.php', array('id'=>$cm->id, 'mode'=>$mode, 'hook'=>$hook, 'sortkey'=>PCAST_DATE_UPDATED));
$url2 = new moodle_url('/mod/pcast/view.php', array('id'=>$cm->id, 'mode'=>$mode, 'hook'=>$hook, 'sortkey'=>PCAST_DATE_CREATED));
if ($neworder != '') {
$url1->param('sortorder', $neworder);
}
//Hyperlinks
$link1 = html_writer::tag('a', $strsortlastupdate.$icon , array('href'=>$url1, 'title'=>$strsortlastupdate.' '.$strchangeto));
$link2 = html_writer::tag('a', $strsortcreation , array('href'=>$url2, 'title'=>$strsortcreation.' '.$asc));
//Output
$html = html_writer::tag('span', get_string('current', 'pcast', $strsortlastupdate .' ' . $currentorder),
array('class'=>'accesshide'));
$html .= $strsortby.$strsep;
$html .= $link1 . ' | ';
$html .= html_writer::tag('span', $link2, array('class'=>'pcast-bold'));
break;
case PCAST_DATE_CREATED:
//URLs
$url1 = new moodle_url('/mod/pcast/view.php', array('id'=>$cm->id,'mode'=>$mode,'hook'=>$hook, 'sortkey'=>PCAST_DATE_UPDATED));
$url2 = new moodle_url('/mod/pcast/view.php', array('id'=>$cm->id,'mode'=>$mode,'hook'=>$hook, 'sortkey'=>PCAST_DATE_CREATED));
if ($neworder != '') {
$url2->param('sortorder', $neworder);
}
//Hyperlinks
$link1 = html_writer::tag('a', $strsortlastupdate , array('href'=>$url1, 'title'=>$strsortlastupdate.' '.$asc));
$link2 = html_writer::tag('a', $strsortcreation.$icon , array('href'=>$url2, 'title'=>$strsortcreation.' '.$strchangeto));
//Output
$html = html_writer::tag('span', get_string('current', 'pcast', $strsortcreation .' ' . $currentorder),
array('class'=>'accesshide'));
$html .= $strsortby.$strsep;
$html .= $link1 . ' | ';
$html .= html_writer::tag('span', $link2, array('class'=>'pcast-bold'));
break;
case PCAST_AUTHOR_FNAME:
//URLs
$url1 = new moodle_url('/mod/pcast/view.php', array('id'=>$cm->id,'mode'=>$mode,'hook'=>$hook, 'sortkey'=>PCAST_AUTHOR_LNAME));
$url2 = new moodle_url('/mod/pcast/view.php', array('id'=>$cm->id,'mode'=>$mode,'hook'=>$hook, 'sortkey'=>PCAST_AUTHOR_FNAME));
if ($neworder != '') {
$url2->param('sortorder', $neworder);
}
//Hyperlinks
$link1 = html_writer::tag('a', $strsortlname , array('href'=>$url1, 'title'=>$strsortlname.' '.$asc));
$link2 = html_writer::tag('a', $strsortfname.$icon , array('href'=>$url2, 'title'=>$strsortfname.' '.$strchangeto));
//Output
$html = html_writer::tag('span', get_string('current', 'pcast', $strsortlname .' ' . $currentorder),
array('class'=>'accesshide'));
$html .= $strsortby.$strsep;
$html .= $link1 . ' | ';
$html .= html_writer::tag('span', $link2, array('class'=>'pcast-bold'));
break;
case PCAST_AUTHOR_LNAME:
//URLs
$url1 = new moodle_url('/mod/pcast/view.php', array('id'=>$cm->id,'mode'=>$mode,'hook'=>$hook, 'sortkey'=>PCAST_AUTHOR_LNAME));
$url2 = new moodle_url('/mod/pcast/view.php', array('id'=>$cm->id,'mode'=>$mode,'hook'=>$hook, 'sortkey'=>PCAST_AUTHOR_FNAME));
if ($neworder != '') {
$url1->param('sortorder', $neworder);
}
//Hyperlinks
$link1 = html_writer::tag('a', $strsortlname.$icon , array('href'=>$url1, 'title'=>$strsortlname.' '.$strchangeto));
$link2 = html_writer::tag('a', $strsortfname , array('href'=>$url2, 'title'=>$strsortfname.' '.$asc));
//Output
$html = html_writer::tag('span', get_string('current', 'pcast', $strsortfname .' ' . $currentorder),
array('class'=>'accesshide'));
$html .= $strsortby.$strsep;
$html .= $link1 . ' | ';
$html .= html_writer::tag('span', $link2, array('class'=>'pcast-bold'));
break;
default:
$html ='';
}
// Display the links
echo html_writer::empty_tag('br'). $html . html_writer::empty_tag('br');
}
/**
* Function to display Pcast episodes
* @global stdClass $CFG
* @global stdClass $DB
* @global stdClass $USER
* @param object $pcast
* @param object $cm
* @param int $groupmode
* @param string $hook
* @param string $sortkey
* @param string $sortorder
* @return boolean
*/
function pcast_display_standard_episodes($pcast, $cm, $groupmode = 0, $hook='', $sortkey='', $sortorder='asc') {
global $CFG, $DB, $USER;
$context = get_context_instance(CONTEXT_MODULE, $cm->id);
// Get the current group
if ($groupmode > 0) {
$currentgroup = groups_get_activity_group($cm);
} else {
$currentgroup = 0;
}
// Get the episodes for this pcast
if (!empty($sortorder)) {
$sort = 'p.name '. $sortorder;
} else {
$sort = 'p.name ASC';
}
$sql = pcast_get_episode_sql();
$sql .= " WHERE p.pcastid = ? AND (p.approved =? OR p.userid =? )";
if (empty($hook) or ($hook == 'ALL')) {
$sql .= " ORDER BY ". $sort;
$episodes = $DB->get_records_sql($sql,array($pcast->id, '1', $USER->id));
} else if($hook == 'SPECIAL') {
// Match Other Characters
$sql .= " AND (". $DB->sql_like('p.name', '?',false)."
OR ". $DB->sql_like('p.name', '?',false)."
OR ". $DB->sql_like('p.name', '?',false)."
OR ". $DB->sql_like('p.name', '?',false)."
OR ". $DB->sql_like('p.name', '?',false)."
OR ". $DB->sql_like('p.name', '?',false)."
OR ". $DB->sql_like('p.name', '?',false)."
OR ". $DB->sql_like('p.name', '?',false)."
OR ". $DB->sql_like('p.name', '?',false)."
OR ". $DB->sql_like('p.name', '?',false)."
)
ORDER BY $sort";
$episodes = $DB->get_records_sql($sql,array($pcast->id, '1', $USER->id, '1%', '2%', '3%', '4%', '5%', '6%', '7%', '8%', '9%', '0%'));
} else {
$sql .= " and ". $DB->sql_like('p.name', '?',false)." ORDER BY $sort";
$episodes = $DB->get_records_sql($sql,array($pcast->id, '1', $USER->id, $hook.'%'));
}
//Get Group members
$members = get_enrolled_users($context, 'mod/pcast:write', $currentgroup, 'u.id', 'u.id ASC');
foreach ($episodes as $episode) {
if (isset($members[$episode->userid]->id) and ($members[$episode->userid]->id == $episode->userid)) {
//Display this episode (User is in the group)
pcast_display_episode_brief($episode, $cm);
} else if ($currentgroup == 0) {
//Display this episode (NO GROUPS USED)
pcast_display_episode_brief($episode, $cm);
}
}
return true;
}
/**
* Determine if the user is able to view the specified episode.
* @param object $episode
* @param object $cm
* @param int $groupmode
* @return bool (true if allowed, false if denied)
*/
function pcast_group_allowed_viewing($episode, $cm, $groupmode) {
$context = get_context_instance(CONTEXT_MODULE, $cm->id);
$currentgroup = 0;
// Get the current group info
if ($groupmode > 0) {
$currentgroup = groups_get_activity_group($cm);
} else {
//No groups
return true;
}
// See if user can view all groups
if (has_capability('moodle/site:accessallgroups',$context)) {
return true;
}
//Get Group members
$members = get_enrolled_users($context, 'mod/pcast:write', $currentgroup, 'u.id', 'u.id ASC');
//See if episode is created by a member of the group
if (isset($members[$episode->userid]->id) and ($members[$episode->userid]->id == $episode->userid)) {
//Member of the group
return true;
} else {
//Not a member
return false;
}
//Not able to view episode (should never get here)
return false;
}
/**
* Function to display episodes by category
* @global stdClass $CFG
* @global stdClass $DB
* @global stdClass $USER
* @param object $pcast
* @param object $cm
* @param int $groupmode
* @param string $hook
*/
function pcast_display_category_episodes($pcast, $cm, $groupmode = 0, $hook=PCAST_SHOW_ALL_CATEGORIES) {
global $CFG, $DB, $USER;
$context = get_context_instance(CONTEXT_MODULE, $cm->id);
// Get the current group
if ($groupmode > 0) {
$currentgroup = groups_get_activity_group($cm);
} else {
$currentgroup = 0;
}
// Get the episodes for this pcast
$sql = pcast_get_episode_sql();
$sql .= " WHERE p.pcastid = ? AND (p.approved =? OR p.userid =? )";
if ($hook == PCAST_SHOW_ALL_CATEGORIES) {
$sql .= " ORDER BY cat.name, ncat.name, p.name ASC";
$episodes = $DB->get_records_sql($sql,array($pcast->id, '1', $USER->id));
} else if ($hook == PCAST_SHOW_NOT_CATEGORISED) {
$sql .= " AND
p.topcategory = ?
ORDER BY p.name ASC";
$episodes = $DB->get_records_sql($sql,array($pcast->id, '1', $USER->id,'0'));
} else {
$category->category = $hook;
$category = pcast_get_itunes_categories($category, $pcast);
if($category->nestedcategory == 0) {
$sql .= " AND
p.topcategory = ?
ORDER BY cat.name, ncat.name, p.name ASC";
$episodes = $DB->get_records_sql($sql,array($pcast->id, '1', $USER->id, $category->topcategory));
} else {
$sql .= " AND
p.nestedcategory = ?
ORDER BY cat.name, ncat.name, p.name ASC";
$episodes = $DB->get_records_sql($sql,array($pcast->id, '1', $USER->id, $category->nestedcategory));
}
}
//Get Group members
$members = get_enrolled_users($context, 'mod/pcast:write', $currentgroup, 'u.id', 'u.id ASC');
foreach ($episodes as $episode) {
if (isset($members[$episode->userid]->id) and ($members[$episode->userid]->id == $episode->userid)) {
//Display this episode (User is in the group)
pcast_display_episode_brief($episode, $cm);
} else if ($currentgroup == 0) {
//Display this episode (NO GROUPS USED)
pcast_display_episode_brief($episode, $cm);
}
}
}
/**
* Display all episodes that sorted by date
* @global stdClass $CFG
* @global stdClass $DB
* @global stdClass $USER
* @param object $pcast
* @param object $cm
* @param int $groupmode
* @param string $hook
* @param string $sortkey
* @param string $sortorder
*/
function pcast_display_date_episodes($pcast, $cm, $groupmode = 0, $hook='', $sortkey=PCAST_DATE_CREATED, $sortorder='desc') {
global $CFG, $DB, $USER;
$context = get_context_instance(CONTEXT_MODULE, $cm->id);
// Get the current group
if ($groupmode > 0) {
$currentgroup = groups_get_activity_group($cm);
} else {
$currentgroup = 0;
}
// Get the episodes for this pcast
$sql = pcast_get_episode_sql();
$sql .= " WHERE p.pcastid = ? AND (p.approved =? OR p.userid =? )";
switch ($sortkey) {
case PCAST_DATE_UPDATED:
$sql .= " ORDER BY p.timemodified";
break;
case PCAST_DATE_CREATED:
default:
$sql .= " ORDER BY p.timecreated";
break;
}
switch ($sortorder) {
case 'asc':
$sql .= " ASC , p.name ASC";
break;
case 'desc':
default:
$sql .= " DESC, p.name ASC";
break;
}
$episodes = $DB->get_records_sql($sql,array($pcast->id, '1', $USER->id));
//Get Group members
$members = get_enrolled_users($context, 'mod/pcast:write', $currentgroup, 'u.id', 'u.id ASC');
foreach ($episodes as $episode) {
if(isset($members[$episode->userid]->id) and ($members[$episode->userid]->id == $episode->userid)){
//Display this episode (User is in the group)
pcast_display_episode_brief($episode, $cm);
} else if ($currentgroup == 0) {
//Display this episode (NO GROUPS USED)
pcast_display_episode_brief($episode, $cm);
}
}
}
/**
* Display all episodes that sorted by author
* @global stdClass $CFG
* @global stdClass $DB
* @global stdClass $USER
* @param object $pcast
* @param object $cm
* @param int $groupmode
* @param string $hook
* @param string $sortkey
* @param string $sortorder
*/
function pcast_display_author_episodes($pcast, $cm, $groupmode = 0, $hook='', $sortkey='', $sortorder='asc') {
global $CFG, $DB, $USER;
$context = get_context_instance(CONTEXT_MODULE, $cm->id);
// Get the current group
if ($groupmode > 0) {
$currentgroup = groups_get_activity_group($cm);
} else {
$currentgroup = 0;
}
// Get the episodes for this pcast
$sql = pcast_get_episode_sql();
$sql .= " WHERE p.pcastid = ? AND (p.approved =? OR p.userid =? )";
// Setup for ASC or DESC sorting
switch ($sortorder) {
case 'asc':
$sort= "ASC";
break;
case 'desc':
default:
$sort= "DESC";
break;
}
// Construct lookups based on FNAME / LNAME and HOOK
switch ($sortkey) {
case PCAST_AUTHOR_LNAME:
// Order is constant for all LNAME sorts
$order = " ORDER BY u.lastname " .$sort .", u.firstname " . $sort. ", p.name ASC" ;
// Handle cases where you lookup by first letter of name (last / first)
if (empty($hook) or ($hook == 'ALL')) {
$sql .= $order;
$episodes = $DB->get_records_sql($sql,array($pcast->id, '1', $USER->id));
} else {
$sql .= " and ". $DB->sql_like('u.lastname', '?',false) . $order;
$episodes = $DB->get_records_sql($sql,array($pcast->id, '1', $USER->id, $hook.'%'));
}
break;
case PCAST_AUTHOR_FNAME:
default:
// Order is constant for all FNAME sorts
$order = " ORDER BY u.firstname " .$sort .", u.lastname " . $sort. ", p.name ASC" ;
// Handle cases where you lookup by first letter of name (last / first)
if (empty($hook) or ($hook == 'ALL')) {
$sql .= $order;
$episodes = $DB->get_records_sql($sql,array($pcast->id, '1', $USER->id));
} else {
$sql .= " and ". $DB->sql_like('u.firstname', '?',false) . $order;
$episodes = $DB->get_records_sql($sql,array($pcast->id, '1', $USER->id, $hook.'%'));
}
break;
}
//Get Group members
$members = get_enrolled_users($context, 'mod/pcast:write', $currentgroup, 'u.id', 'u.id ASC');
foreach ($episodes as $episode) {
if (isset($members[$episode->userid]->id) and ($members[$episode->userid]->id == $episode->userid)){
//Display this episode (User is in the group)
pcast_display_episode_brief($episode, $cm);
} else if ($currentgroup == 0) {
//Display this episode (NO GROUPS USED)
pcast_display_episode_brief($episode, $cm);
}
}
}
/**
* Display all episodes that have not yet been approved
* @global stdClass $CFG
* @global stdClass $DB
* @global stdClass $USER
* @param object $pcast
* @param object $cm
* @param int $groupmode
* @param string $hook
* @param string $sortkey
* @param string $sortorder
*/
function pcast_display_approval_episodes($pcast, $cm, $groupmode = 0, $hook='', $sortkey='', $sortorder='asc') {
global $CFG, $DB, $USER;
$context = get_context_instance(CONTEXT_MODULE, $cm->id);
// Get the current group
if($groupmode > 0) {
$currentgroup = groups_get_activity_group($cm);
} else {
$currentgroup = 0;
}
// Get the episodes for this pcast
$sql = pcast_get_episode_sql();
$sql .= " WHERE p.pcastid = ? AND p.approved =?";
if (!empty($sortorder)) {
$sort = 'p.name '. $sortorder;
} else {
$sort = 'p.name ASC';
}
if (empty($hook) or ($hook == 'ALL')) {
$sql .= " ORDER BY ". $sort;
$episodes = $DB->get_records_sql($sql,array($pcast->id, '0'));
} else if ($hook == 'SPECIAL') {
// Match Other Characters
$sql .= " AND (". $DB->sql_like('p.name', '?',false)."
OR ". $DB->sql_like('p.name', '?',false)."
OR ". $DB->sql_like('p.name', '?',false)."
OR ". $DB->sql_like('p.name', '?',false)."
OR ". $DB->sql_like('p.name', '?',false)."
OR ". $DB->sql_like('p.name', '?',false)."
OR ". $DB->sql_like('p.name', '?',false)."
OR ". $DB->sql_like('p.name', '?',false)."
OR ". $DB->sql_like('p.name', '?',false)."
OR ". $DB->sql_like('p.name', '?',false)."
)
ORDER BY $sort";
$episodes = $DB->get_records_sql($sql,array($pcast->id, '0', '1%', '2%', '3%', '4%', '5%', '6%', '7%', '8%', '9%', '0%'));
} else {
$sql .= " and ". $DB->sql_like('p.name', '?',false)." ORDER BY $sort";
$episodes = $DB->get_records_sql($sql,array($pcast->id, '0', $hook.'%'));
}
//Get Group members
$members = get_enrolled_users($context, 'mod/pcast:write', $currentgroup, 'u.id', 'u.id ASC');
foreach ($episodes as $episode) {
if (isset($members[$episode->userid]->id) and ($members[$episode->userid]->id == $episode->userid)) {
//Display this episode (User is in the group)
pcast_display_episode_brief($episode, $cm);
} else if ($currentgroup == 0) {
//Display this episode (NO GROUPS USED)
pcast_display_episode_brief($episode, $cm);
}
}
}
/**
* Generates the SQL needed to get all episodes belonging to a specific pcast.
* @return string
*/
function pcast_get_episode_sql() {
$sql = "SELECT p.id AS id,
p.pcastid AS pcastid,
p.course AS course,
p.userid AS userid,
p.name AS name,
p.summary AS summary,
p.mediafile AS mediafile,
p.duration AS duration,
p.explicit AS explicit,
p.subtitle AS subtitle,
p.keywords AS keywords,
p.topcategory as topcatid,
p.nestedcategory as nestedcatid,
p.timecreated as timecreated,
p.timemodified as timemodified,
p.approved as approved,
p.sequencenumber as sequencenumber,
pcast.userscancomment as userscancomment,
pcast.userscancategorize as userscancategorize,
pcast.userscanpost as userscanpost,
pcast.requireapproval as requireapproval,
pcast.displayauthor as displayauthor,
pcast.displayviews as displayviews,
pcast.assessed as assessed,
pcast.assesstimestart as assesstimestart,
pcast.assesstimefinish as assesstimefinish,
pcast.scale as scale,
cat.name as topcategory,
ncat.name as nestedcategory,
u.firstname as firstname,
u.lastname as lastname
FROM {pcast_episodes} AS p
LEFT JOIN
{pcast} AS pcast ON
p.pcastid = pcast.id
LEFT JOIN
{user} AS u ON
p.userid = u.id
LEFT JOIN
{pcast_itunes_categories} AS cat ON
p.topcategory = cat.id
LEFT JOIN
{pcast_itunes_nested_cat} AS ncat ON
p.nestedcategory = ncat.id";
return $sql;
}
/**
* Function to print overview of the episode
* @global stdClass $CFG
* @param object $episode
* @param object $cm
* @param string $hook
*/
function pcast_display_episode_brief($episode, $cm, $hook ='ALL'){
global $CFG, $DB;
$context = get_context_instance(CONTEXT_MODULE, $cm->id);
$strsep = get_string('labelsep', 'langconfig');
$html = html_writer::start_tag('div', array('class'=>'no-overflow')). "\n";
$html .= html_writer::start_tag('div', array('class'=>'pcast-episode')). "\n";
$table = new html_table();
//$table->set_classes('views');
$table->style = 'views';
$table->cellpadding = '5';
$table->colclasses = array('pcast-header','pcast-data');
$table->width = '100%';
$table->align = array ("RIGHT", "LEFT");
// Name of episode
$table->data[] = array (get_string("name","pcast"), format_text($episode->name, FORMAT_HTML, array('context'=>$context)));
// Description
$table->data[] = array (get_string("summary","pcast"), format_text($episode->summary, FORMAT_HTML, array('context'=>$context)));
// Category -Display only if enabled
if ((isset($episode->userscancategorize))and ($episode->userscancategorize != '0')) {
if ((isset($episode->topcategory))and ($episode->topcategory != '0')) {
$episode->category = $episode->topcategory;
if ((isset($episode->nestedcategory))and ($episode->nestedcategory != '0')) {
$episode->category .= $strsep. ' '.$episode->nestedcategory;
}
}
if (isset($episode->category)) {
$table->data[] = array (get_string("category","pcast"), s($episode->category));
}
}
// Attachment
$table->data[] = array (get_string("pcastmediafile","pcast"), pcast_display_mediafile_link($episode, $cm, true));