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273 lines
8.6 KiB
PHP
273 lines
8.6 KiB
PHP
<?
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class Artists {
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/**
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* Given an array of GroupIDs, return their associated artists.
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*
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* @param array $GroupIDs
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* @return an array of the following form:
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* GroupID => {
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* [ArtistType] => {
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* id, name, aliasid
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* }
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* }
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* ArtistType is an int. It can be:
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* 1 => Main artist
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* 2 => Guest artist
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* 4 => Composer
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* 5 => Conductor
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* 6 => DJ
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*/
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public static function get_artists($GroupIDs) {
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global $Cache, $DB;
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$Results = array();
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$DBs = array();
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foreach($GroupIDs as $GroupID) {
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if(!is_number($GroupID)) {
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continue;
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}
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$Artists = $Cache->get_value('groups_artists_'.$GroupID);
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if(is_array($Artists)) {
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$Results[$GroupID] = $Artists;
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} else {
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$DBs[] = $GroupID;
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}
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}
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if(count($DBs) > 0) {
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$IDs = implode(',', $DBs);
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if(empty($IDs)) {
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$IDs = "null";
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}
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$DB->query("SELECT ta.GroupID,
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ta.ArtistID,
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aa.Name,
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ta.Importance,
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ta.AliasID
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FROM torrents_artists AS ta
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JOIN artists_alias AS aa ON ta.AliasID = aa.AliasID
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WHERE ta.GroupID IN ($IDs)
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ORDER BY ta.GroupID ASC,
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ta.Importance ASC,
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aa.Name ASC;");
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while(list($GroupID,$ArtistID,$ArtistName,$ArtistImportance,$AliasID) = $DB->next_record(MYSQLI_BOTH, false)) {
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$Results[$GroupID][$ArtistImportance][] = array('id' => $ArtistID, 'name' => $ArtistName, 'aliasid' => $AliasID);
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$New[$GroupID][$ArtistImportance][] = array('id' => $ArtistID, 'name' => $ArtistName, 'aliasid' => $AliasID);
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}
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foreach($DBs as $GroupID) {
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if(isset($New[$GroupID])) {
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$Cache->cache_value('groups_artists_'.$GroupID, $New[$GroupID]);
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}
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else {
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$Cache->cache_value('groups_artists_'.$GroupID, array());
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}
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}
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$Missing = array_diff($GroupIDs, array_keys($Results));
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if(!empty($Missing)) {
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$Results += array_fill_keys($Missing, array());
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}
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}
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return $Results;
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}
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/**
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* Convenience function for get_artists, when you just need one group.
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*
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* @param int $GroupID
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* @return array - see get_artists
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*/
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public static function get_artist($GroupID) {
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$Results = Artists::get_artists(array($GroupID));
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return $Results[$GroupID];
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}
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/**
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* Format an array of artists for display.
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* TODO: Revisit the logic of this, see if we can helper-function the copypasta.
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*
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* @param array Artists an array of the form output by get_artists
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* @param boolean $MakeLink if true, the artists will be links, if false, they will be text.
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* @param boolean $IncludeHyphen if true, appends " - " to the end.
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* @param $Escape if true, output will be escaped. Think carefully before setting it false.
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*/
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public static function display_artists($Artists, $MakeLink = true, $IncludeHyphen = true, $Escape = true) {
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if(!empty($Artists)) {
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$ampersand = ($Escape) ? ' & ' : ' & ';
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$link = '';
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$MainArtists = isset($Artists[1]) ? $Artists[1] : null;
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$Guests = isset($Artists[2]) ? $Artists[2] : null;
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$Composers = isset($Artists[4]) ? $Artists[4] : null;
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$Conductors = isset($Artists[5]) ? $Artists[5] : null;
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$DJs = isset($Artists[6]) ? $Artists[6] : null;
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if ((count($MainArtists) + count($Conductors) + count($DJs) == 0) && (count($Composers) == 0)) {
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return '';
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}
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// Various Composers is not needed and is ugly and should die
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switch(count($Composers)) {
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case 0:
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break;
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case 1:
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$link .= Artists::display_artist($Composers[0], $MakeLink, $Escape);
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break;
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case 2:
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$link .= Artists::display_artist($Composers[0], $MakeLink, $Escape).$ampersand.Artists::display_artist($Composers[1], $MakeLink, $Escape);
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break;
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}
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if ((count($Composers) > 0) && (count($Composers) < 3) && (count($MainArtists) > 0)) {
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$link .= ' performed by ';
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}
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$ComposerStr = $link;
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switch(count($MainArtists)) {
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case 0:
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break;
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case 1:
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$link .= Artists::display_artist($MainArtists[0], $MakeLink, $Escape);
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break;
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case 2:
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$link .= Artists::display_artist($MainArtists[0], $MakeLink, $Escape).$ampersand.Artists::display_artist($MainArtists[1], $MakeLink, $Escape);
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break;
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default:
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$link .= 'Various Artists';
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}
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/*if(!empty($Guests) && (count($MainArtists) + count($Composers) > 0) && (count($MainArtists) + count($Composers) + count($Conductors) < 3)) {
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switch(count($Guests)) {
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case 1:
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$link .= ' with '.Artists::display_artist($Guests[0], $MakeLink, $Escape);
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break;
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case 2:
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$link .= ' with '.Artists::display_artist($Guests[0], $MakeLink, $Escape).$ampersand.Artists::display_artist($Guests[1], $MakeLink, $Escape);
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break;
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}
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}*/
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if ((count($Conductors) > 0) && (count($MainArtists) + count($Composers) > 0) && (count($Composers) < 3 || count($MainArtists) > 0)) {
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$link .= ' under ';
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}
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switch(count($Conductors)) {
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case 0:
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break;
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case 1:
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$link .= Artists::display_artist($Conductors[0], $MakeLink, $Escape);
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break;
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case 2:
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$link .= Artists::display_artist($Conductors[0], $MakeLink, $Escape).$ampersand.Artists::display_artist($Conductors[1], $MakeLink, $Escape);
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break;
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default:
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$link .= ' Various Conductors';
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}
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if ((count($Composers) > 0) && (count($MainArtists) + count($Conductors) > 3) && (count($MainArtists) > 1) && (count($Conductors) > 1)) {
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$link = $ComposerStr . 'Various Artists';
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} elseif ((count($Composers) > 2) && (count($MainArtists) + count($Conductors) == 0)) {
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$link = 'Various Composers';
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}
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// DJs override everything else
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switch(count($DJs)) {
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case 0:
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break;
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case 1:
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$link = Artists::display_artist($DJs[0], $MakeLink, $Escape);
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break;
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case 2:
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$link = Artists::display_artist($DJs[0], $MakeLink, $Escape).$ampersand.Artists::display_artist($DJs[1], $MakeLink, $Escape);
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break;
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default :
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$link = 'Various DJs';
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}
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return $link.($IncludeHyphen?' - ':'');
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} else {
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return '';
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}
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}
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/**
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* Formats a single artist name.
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*
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* @param array $Artist an array of the form ('id'=>ID, 'name'=>Name)
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* @param boolean $MakeLink If true, links to the artist page.
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* @param boolean $Escape If false and $MakeLink is false, returns the unescaped, unadorned artist name.
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* @return string Formatted artist name.
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*/
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public static function display_artist($Artist, $MakeLink = true, $Escape = true) {
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if ($MakeLink && !$Escape) {
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error('Invalid parameters to Artists::display_artist()');
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} elseif ($MakeLink) {
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return '<a href="artist.php?id='.$Artist['id'].'">'.display_str($Artist['name']).'</a>';
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} elseif ($Escape) {
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return display_str($Artist['name']);
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} else {
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return $Artist['name'];
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}
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}
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/**
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* Deletes an artist and their requests, wiki, and tags.
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* Does NOT delete their torrents.
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*
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* @param int $ArtistID
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*/
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public static function delete_artist($ArtistID) {
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global $DB, $LoggedUser, $Cache;
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$DB->query("SELECT Name FROM artists_group WHERE ArtistID = ".$ArtistID);
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list($Name) = $DB->next_record(MYSQLI_NUM, false);
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// Delete requests
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$DB->query("SELECT RequestID FROM requests_artists WHERE ArtistID=".$ArtistID." AND ArtistID != 0");
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$Requests = $DB->to_array();
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foreach($Requests AS $Request) {
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list($RequestID) = $Request;
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$DB->query('DELETE FROM requests WHERE ID='.$RequestID);
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$DB->query('DELETE FROM requests_votes WHERE RequestID='.$RequestID);
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$DB->query('DELETE FROM requests_tags WHERE RequestID='.$RequestID);
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$DB->query('DELETE FROM requests_artists WHERE RequestID='.$RequestID);
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}
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// Delete artist
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$DB->query('DELETE FROM artists_group WHERE ArtistID='.$ArtistID);
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$DB->query('DELETE FROM artists_alias WHERE ArtistID='.$ArtistID);
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$Cache->decrement('stats_artist_count');
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// Delete wiki revisions
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$DB->query('DELETE FROM wiki_artists WHERE PageID='.$ArtistID);
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// Delete tags
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$DB->query('DELETE FROM artists_tags WHERE ArtistID='.$ArtistID);
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$Cache->delete_value('artist_'.$ArtistID);
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// Record in log
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if(!empty($LoggedUser['Username'])) {
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$Username = $LoggedUser['Username'];
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} else {
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$Username = 'System';
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}
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Misc::write_log('Artist '.$ArtistID.' ('.$Name.') was deleted by '.$Username);
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}
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/**
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* Remove LRM (left-right-marker) and trims, because people copypaste carelessly.
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* If we don't do this, we get seemingly duplicate artist names.
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* TODO: make stricter, e.g. on all whitespace characters or Unicode normalisation
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*
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* @param string $ArtistName
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*/
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public static function normalise_artist_name($ArtistName) {
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// \u200e is ‎
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$ArtistName = trim($ArtistName);
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$ArtistName = preg_replace('/^(\xE2\x80\x8E)+/', '', $ArtistName);
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$ArtistName = preg_replace('/(\xE2\x80\x8E)+$/', '', $ArtistName);
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return trim(preg_replace('/ +/', ' ', $ArtistName));
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}
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}
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?>
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