mas01mj@640: var sparqler = new SPARQL.Service("http://harrison/sparql/");
mas01mj@640: 
mas01mj@640: sparqler.setPrefix("mo", "http://purl.org/ontology/mo/");
mas01mj@640: sparqler.setPrefix("foaf", "http://xmlns.com/foaf/0.1/");
mas01mj@640: sparqler.setPrefix("dc", "http://purl.org/dc/elements/1.1/");
mas01mj@640: 
mas01mj@640: sparqler.setRequestHeader("Accept", "application/json");
mas01mj@640: 
mas01mj@640: var resultsTable;
mas01mj@640: 
mas01mj@640: $(document).ready(function() {
mas01mj@640: 	$("#search").click(search)
mas01mj@640: 	$("#spinner").hide();
mas01mj@640: 	resultsTable = $('#results').dataTable({"bFilter":false,"bLengthChange":false,"bPaginate":true, 
mas01mj@640: 		"fnRowCallback": function(nRow, aData, iDisplayIndex)
mas01mj@640: 		{
mas01mj@640: 			$(nRow).attr("typeof", "mo:Track");
mas01mj@640: 			return nRow;
mas01mj@640: 		},
mas01mj@640: 		"fnDrawCallback": function ()
mas01mj@640: 		{
mas01mj@640: 			$(".artist_name").click(function(event) { searchArtist($(this).attr("href")); return false; });
mas01mj@640: 			$(".album_name").click(function(event) { searchAlbum($(this).attr("href")); return false; });
mas01mj@640: 		}
mas01mj@640: 	});
mas01mj@640: 
mas01mj@640: 	$("#results tbody").click(function(event) {
mas01mj@640: 		$(resultsTable.fnSettings().aoData).each(function (){
mas01mj@640: 			$(this.nTr).removeClass('row_selected');
mas01mj@640: 		});
mas01mj@640: 		$(event.target.parentNode).addClass('row_selected');
mas01mj@640: 	});
mas01mj@640: 
mas01mj@640: });
mas01mj@640: 
mas01mj@640: function search(event) {
mas01mj@640: 
mas01mj@640: 	var trackSearchString = $("#tracksearch").val();
mas01mj@640: 	var artistSearchString = $("#artistsearch").val();
mas01mj@640: 
mas01mj@640: 	if(trackSearchString.length == 0 && artistSearchString.length == 0)
mas01mj@640: 	{
mas01mj@640: 		resultsTable.fnClearTable();
mas01mj@640: 		return;
mas01mj@640: 	}
mas01mj@640: 
mas01mj@640: 	var queryString = "SELECT ?maker ?album ?album_title ?tracknum ?artist_name ?track_title WHERE {";
mas01mj@640: 
mas01mj@640: 	queryString += " ?track a mo:Track; mo:track_number ?tracknum; foaf:maker ?maker. ?album mo:track ?track; dc:title ?album_title. ?maker foaf:name ?artist_name";
mas01mj@640: 	
mas01mj@640: 	if(artistSearchString.length > 0)
mas01mj@640: 	{
mas01mj@653: 		queryString += ' FILTER regex(?artist_name, "^'+artistSearchString+'", "i")';
mas01mj@640: 	}
mas01mj@640: 	else
mas01mj@640: 	{
mas01mj@640: 		queryString += ".";
mas01mj@640: 	}
mas01mj@640: 	
mas01mj@640: 	queryString += " ?record mo:track ?track; mo:publication_of ?signal. ?signal dc:title ?track_title";
mas01mj@640: 
mas01mj@640: 	if(trackSearchString.length > 0)
mas01mj@640: 	{
mas01mj@653: 		queryString += ' FILTER regex(?track_title, "^'+trackSearchString+'", "i")';
mas01mj@640: 	}
mas01mj@640: 	else
mas01mj@640: 	{
mas01mj@640: 		queryString += ".";
mas01mj@640: 	}
mas01mj@640: 
mas01mj@640: 	queryString += " }";
mas01mj@640: 
mas01mj@640: 	performSearch(queryString);
mas01mj@640: }
mas01mj@640: 
mas01mj@640: function searchArtist(id) {
mas01mj@640: 	var queryString = "SELECT ?maker ?album ?album_title ?tracknum ?artist_name ?track_title WHERE {";
mas01mj@640: 	queryString += " ?track a mo:Track; mo:track_number ?tracknum; foaf:maker ?maker. ?album mo:track ?track; dc:title ?album_title. ?maker foaf:name ?artist_name";
mas01mj@640: 	queryString += " ?record mo:track ?track; mo:publication_of ?signal. ?signal dc:title ?track_title.";
mas01mj@640: 	queryString += " FILTER(sameTerm(?maker, <"+id+">))";
mas01mj@640: 	queryString += " }";
mas01mj@640: 	performSearch(queryString);
mas01mj@640: }
mas01mj@640: 
mas01mj@640: function searchAlbum(id) {
mas01mj@640: 	var queryString = "SELECT ?maker ?album ?album_title ?tracknum ?artist_name ?track_title WHERE {";
mas01mj@640: 	queryString += " ?track a mo:Track; mo:track_number ?tracknum; foaf:maker ?maker. ?album mo:track ?track; dc:title ?album_title. ?maker foaf:name ?artist_name";
mas01mj@640: 	queryString += " ?record mo:track ?track; mo:publication_of ?signal. ?signal dc:title ?track_title.";
mas01mj@640: 	queryString += " FILTER(sameTerm(?album, <"+id+">))";
mas01mj@640: 	queryString += " }";
mas01mj@640: 	performSearch(queryString);
mas01mj@640: }
mas01mj@640: 
mas01mj@640: 
mas01mj@640: function performSearch(queryString) {
mas01mj@640: 	$("#spinner").show();
mas01mj@640: 	$("#query").text(queryString);
mas01mj@640: 	var query = sparqler.createQuery();
mas01mj@640: 	query.query(queryString, {failure: function(xhr) { alert("Bad response! "+xhr.responseText) }, success: displayResults});
mas01mj@640: }
mas01mj@640: 
mas01mj@640: function displayResults(json) {
mas01mj@640: 	resultsTable.fnClearTable();
mas01mj@640: 	if(json) {
mas01mj@640: 		
mas01mj@640: 		var bindings = json.results.bindings;
mas01mj@640: 		for(var i=0; i<bindings.length; i++)
mas01mj@640: 		{
mas01mj@640: 			var artistEl = $('<div />');
mas01mj@640: 			var artistLink = $('<a/>');
mas01mj@640: 			artistEl.append(artistLink);
mas01mj@640: 			artistLink.attr("href", bindings[i].maker.value);
mas01mj@640: 			artistLink.attr("rel", "foaf:maker");
mas01mj@640: 			artistLink.addClass("artist_name");
mas01mj@640: 			artistLink.append(bindings[i].artist_name.value);
mas01mj@640: 			
mas01mj@640: 			var albumEl = $('<div />');
mas01mj@640: 			var albumLink = $('<a/>');
mas01mj@640: 			albumEl.append(albumLink);
mas01mj@640: 			albumLink.attr("href", bindings[i].album.value);
mas01mj@640: 			albumLink.attr("rel", "dc:title");
mas01mj@640: 			albumLink.addClass("album_name");
mas01mj@640: 			albumLink.append(bindings[i].album_title.value);
mas01mj@640: 			
mas01mj@640: 			resultsTable.fnAddData([artistEl.html(), bindings[i].track_title.value, bindings[i].tracknum.value, albumEl.html()]);
mas01mj@640: 		}
mas01mj@640: 
mas01mj@640: 	}
mas01mj@640: 	$("#spinner").hide();
mas01mj@640: }