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A stupidly small and simple jQuery table sorter plugin
JavaScript CSS
branch: master

Merge pull request #136 from joequery/stupidsort

Implement stupidsort() and updateSortVal(). Closes #132, #122, #50, #123
latest commit 5cb0c4d818
Joseph McCullough authored

README.md

Stupid jQuery Table Sort

This is a stupid jQuery table sorting plugin. Nothing fancy, nothing really impressive. Overall, stupidly simple. Requires jQuery 1.7 or newer.

View the demo here

See the example.html document to see how to implement it.

Example Usage

The JS:

$("table").stupidtable();

The HTML:

<table>
  <thead>
    <tr>
      <th data-sort="int">int</th>
      <th data-sort="float">float</th>
      <th data-sort="string">string</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td>15</td>
      <td>-.18</td>
      <td>banana</td>
    </tr>
    ...
    ...
    ...

The thead and tbody tags must be used.

Add a data-sort attribute of "DATATYPE" to the th elements to make them sortable by that data type. If you don't want that column to be sortable, just omit the data-sort attribute.

Predefined data types

Our aim is to keep this plugin as lightweight as possible. Consequently, the only predefined datatypes that you can pass to the th elements are

  • int
  • float
  • string (case-sensitive)
  • string-ins (case-insensitive)

These data types will be sufficient for many simple tables. However, if you need different data types for sorting, you can easily create your own!

Data with multiple representations/predefined order

Stupid Table lets you sort a column by computer friendly values while displaying human friendly values via the data-sort-value attribute on a td element. For example, to sort timestamps (computer friendly) but display pretty formated dates (human friendly)

<table>
  <thead>
    <tr>
      <th data-sort="string">Name</th>
      <th data-sort="int">Birthday</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td>Joe McCullough</td>
      <td data-sort-value="672537600">April 25, 1991</td>
    </tr>
    <tr>
      <td>Clint Dempsey</td>
      <td data-sort-value="416016000">March 9, 1983</td>
    </tr>
    ...
    ...
    ...

In this example, Stupid Table will sort the Birthday column by the timestamps provided in the data-sort-value attributes of the corresponding tds. Since timestamps are integers, and that's what we're sorting the column by, we specify the Birthday column as an int column in the data-sort value of the column header.

Default sorting direction

By default, columns will sort ascending. You can specify a column to sort "asc" or "desc" first.

<table>
  <thead>
    <tr>
        <th data-sort="float" data-sort-default="desc">float</th>
        ...
    </tr>
  </thead>
</table>

Sorting a column programatically

After you have called $("#mytable").stupidtable(), if you wish to sort a column without requiring the user to click on it, select the column th and call

var $table = $("#mytable").stupidtable();
var $th_to_sort = $table.find("thead th").eq(0);
$th_to_sort.stupidsort();

// You can also force a direction.
$th_to_sort.stupidsort('asc');
$th_to_sort.stupidsort('desc');

Updating a table cell's value

If you wish for Stupid Table to respond to changes in the table cell values, you must explicitely inform Stupid Table to update its cache with the new values. If you update the table display/sort values without using this mechanism, your newly updated table will not sort correctly!

/*
 * Suppose $age_td is some td in a table under a column specified as an int
 * column. stupidtable() must already be called for this table.
 */
$age_td.updateSortVal(23);

Note that this only changes the internal sort value (whether you specified a data-sort-value or not). Use the standard jQuery .text() / .html() methods if you wish to change the display values.

Callbacks

To execute a callback function after a table column has been sorted, you can bind on aftertablesort.

var table = $("table").stupidtable();
table.bind('aftertablesort', function (event, data) {
    // data.column - the index of the column sorted after a click
    // data.direction - the sorting direction (either asc or desc)
    // $(this) - this table object

    console.log("The sorting direction: " + data.direction);
    console.log("The column index: " + data.column);
});

Similarly, to execute a callback before a table column has been sorted, you can bind on beforetablesort.

See the complex_example.html file.

Creating your own data types

Sometimes you don't have control over the HTML produced by the backend. In the event you need to sort complex data without a data-sort-value attribute, you can create your own data type. Creating your own data type for sorting purposes is easy as long as you are comfortable using custom functions for sorting. Consult Mozilla's Docs if you're not.

Let's create an alphanum datatype for a User ID that takes strings in the form "D10", "A40", and sorts the column based on the numbers in the string.

<thead>
  <tr>
    <th data-sort="string">Name</th>
    <th data-sort="int">Age</th>
    <th data-sort="alphanum">UserID</th>
  </tr>
</thead>
<tbody>
  <tr>
    <td>Joseph McCullough</td>
    <td>20</td>
    <td>D10</td>
  </tr>
  <tr>
    <td>Justin Edwards</td>
    <td>29</td>
    <td>A40</td>
  </tr>
  ...
  ...
  ...

Now we need to specify how the alphanum type will be sorted. To do that, we do the following:

$("table").stupidtable({
  "alphanum":function(a,b){

    var pattern = "^[A-Z](\\d+)$";
    var re = new RegExp(pattern);

    var aNum = re.exec(a).slice(1);
    var bNum = re.exec(b).slice(1);

    return parseInt(aNum,10) - parseInt(bNum,10);
  }
});

This extracts the integers from the cell and compares them in the style that sort functions use.

License

The Stupid jQuery Plugin is licensed under the MIT license. See the LICENSE file for full details.

Tests

Visit tests/test.html in your browser to run the QUnit tests.

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