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Multi column sort support with an example #276

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Multi column sort support with an example #276

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95 changes: 95 additions & 0 deletions examples/example-multi-column-sort.html
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Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,95 @@
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<title>SlickGrid example: Multi Column Sort</title>
<link rel="stylesheet" href="../slick.grid.css" type="text/css"/>
<link rel="stylesheet" href="../css/smoothness/jquery-ui-1.8.16.custom.css" type="text/css"/>
<link rel="stylesheet" href="examples.css" type="text/css"/>
</head>
<body>
<table width="100%">
<tr>
<td valign="top" width="50%">
<div id="myGrid" style="width:600px;height:500px;display:none;"></div>
</td>
<td valign="top">
<h2>Demonstrates:</h2>
<ul>
<li>basic grid with multi column sort option</li>
</ul>
</td>
</tr>
</table>

<script src="../lib/jquery-1.7.min.js"></script>
<script src="../lib/jquery.event.drag-2.0.min.js"></script>

<script src="../slick.core.js"></script>
<script src="../slick.grid.js"></script>

<script>
var grid;
var columns = [
{ id: "title", name: "Title", field: "title", sortable: true },
{ id: "duration", name: "Duration", field: "duration", sortable: true, formatter: dayFormatter },
{ id: "%", name: "% Complete", field: "percentComplete", sortable: true },
{ id: "start", name: "Start", field: "start", formatter: dateFormatter, sortable: true },
{ id: "finish", name: "Finish", field: "finish", formatter: dateFormatter, sortable: true },
{ id: "effort-driven", name: "Effort Driven", field: "effortDriven", sortable: true }
];

function dayFormatter(row, cell, value, columnDef, dataContext) {
return value + ' days';
}

function dateFormatter(row, cell, value, columnDef, dataContext) {
return value.getMonth() + '/' + value.getDate() + '/' + value.getFullYear();
}

var options = {
enableCellNavigation: true,
enableColumnReorder: false,
multiSort: true
};

$(function () {
var data = [];
for (var i = 0; i < 500; i++) {
var startdate = new Date(new Date("1/1/1980").getTime() + Math.round(Math.random() * 365 * 25)*24*60*60*1000);
var endDate = new Date(startdate.getTime() + Math.round(Math.random() * 365) * 24 * 60 * 60 * 1000);
data[i] = {
title: "Task " + i,
duration: Math.round(Math.random() * 30) + 2,
percentComplete: Math.round(Math.random() * 100),
start: startdate,
finish: endDate,
effortDriven: (i % 5 == 0)
};
}

grid = new Slick.Grid("#myGrid", data, columns, options);

grid.onSort.subscribe(function (e, cols) {
data.sort(function (dataRow1, dataRow2) {
for (var i = 0, l = cols.length; i < l; i++) {
var field = cols[i].column.field;
var sign = cols[i].sortAsc ? 1 : -1;
var value1 = dataRow1[field], value2 = dataRow2[field];
var result = (value1 == value2 ? 0 : (value1 > value2 ? 1 : -1)) * sign;
if (result != 0) {
return result;
}
}
return 0;
});
grid.setData(data);
grid.invalidateAllRows();
grid.render();
});

$("#myGrid").show();
})
</script>
</body>
</html>
87 changes: 69 additions & 18 deletions slick.grid.js
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Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -82,7 +82,8 @@ if (typeof Slick === "undefined") {
multiSelect: true,
enableTextSelectionOnCells: false,
dataItemColumnValueExtractor: null,
fullWidthRows: false
fullWidthRows: false,
multiSort: false
};

var columnDefaults = {
Expand Down Expand Up @@ -150,8 +151,8 @@ if (typeof Slick === "undefined") {
var cellCssClasses = {};

var columnsById = {};
var sortColumnId;
var sortAsc = true;
var sortColumns = [];


// async call handles
var h_editorLoader = null;
Expand Down Expand Up @@ -468,7 +469,7 @@ if (typeof Slick === "undefined") {
}
}

setSortColumn(sortColumnId, sortAsc);
setSortColumn();
setupColumnResize();
if (options.enableColumnReorder) {
setupColumnReorder();
Expand All @@ -492,15 +493,37 @@ if (typeof Slick === "undefined") {
return;
}

if (column.id === sortColumnId) {
sortAsc = !sortAsc;
} else {
sortColumnId = column.id;
sortAsc = true;
var sortOpts = null;

for (var i in sortColumns) {
if (sortColumns[i].id == column.id) {
sortOpts = sortColumns[i];
sortOpts.sortAsc = !sortOpts.sortAsc;
break;
}
}

if ((!e.shiftKey && !e.ctrlKey) || !options.multiSort) {
sortColumns.length = 0;
}

if (!sortOpts) {
sortOpts = { id: column.id, sortAsc: true };
sortColumns.push(sortOpts);
} else if (sortColumns.length == 0) {
sortColumns.push(sortOpts);
}

setSortColumn(sortColumnId, sortAsc);
trigger(self.onSort, {sortCol: column, sortAsc: sortAsc}, e);
setSortColumn();

if (!options.multiSort) {
trigger(self.onSort, {sortCol: column, sortAsc: sortOpts.sortAsc}, e);
} else {
trigger(self.onSort, $.map(sortColumns, function(col) {
var colIndex = getColumnIndex(col.id);
return typeof colIndex === 'number' ? {column: columns[colIndex], sortAsc: col.sortAsc } : null;
}), e);
}
}
});
}
Expand Down Expand Up @@ -942,19 +965,47 @@ if (typeof Slick === "undefined") {
}

function setSortColumn(columnId, ascending) {
sortColumnId = columnId;
sortAsc = ascending;
var columnIndex = getColumnIndex(sortColumnId);

// accept multiple columns as 1st arg
if (columnId instanceof Array) {
sortColumns.length = 0;

$.each(columnId, function(i, col) {
switch (typeof col) {
case 'string': // accept column ids instead of object ([id1, id2])
sortColumns.push({ id: col, sortAsc: true });
break;
case 'object':
if (typeof col.id !== 'string' || col.id.length == 0) {
throw new SyntaxError('setSortColumn: missing column id');
}
if (typeof col.sortAsc !== 'boolean') {
col.sortAsc = col.sortAsc ? true : false;
}
sortColumns.push(col);
break;
}
});

// allow old syntax too
} else if (typeof columnId === 'string') {
sortColumns.length = 0;
sortColumns.push({ id: columnId, sortAsc: (typeof ascending === 'boolean' ? ascending : (ascending ? true : false)) });
}
// else simply update from sortColumns

$headers.children().removeClass("slick-header-column-sorted");
$headers.find(".slick-sort-indicator").removeClass("slick-sort-indicator-asc slick-sort-indicator-desc");

if (columnIndex != null) {
$headers.children().eq(columnIndex)
$.each(sortColumns, function(i, col) {
var columnIndex = getColumnIndex(col.id);
if (columnIndex != null) {
$headers.children().eq(columnIndex)
.addClass("slick-header-column-sorted")
.find(".slick-sort-indicator")
.addClass(sortAsc ? "slick-sort-indicator-asc" : "slick-sort-indicator-desc");
}
.addClass(col.sortAsc ? "slick-sort-indicator-asc" : "slick-sort-indicator-desc");
}
});
}

function handleSelectedRangesChanged(e, ranges) {
Expand Down