jquery.datagrid

A jquery plugin to render datagrid. Works with local or remote data. Designed to be adaptive, simple to use and extendable.

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jquery.datagrid

  • Fetch data from any source: local data or remote data (using ajax, deferred function or plugin)
  • Render a simple HTML Table easy to style (no imposed css)
  • Simple columns definition
  • Semi-automatic sorter and pager (for remote data, you need to code server side)
  • Plugins for cell, pager and sorter renderers (easy to create, very easy to extend)
  • Events on each step (you do what you want with your data)
  • Convert form elements (input, select) into automatic filters (magic!)

Demo

jquery.datagrid demo

Install

bower install jquery.datagrid

or

npm install jquery.datagrid

Configuration

Just load jquery.datagrid.js (and optional plugin scripts if you want to use them)

A simple example with remote data (fetch by ajax post)

<script type="text/javascript" src="jquery.datagrid.js"></script>
<script type="text/javascript">
$( document ).ready( function() {
    var datagrid = $(container).datagrid({
        url: "get-data-url",
        col: [{
            field: "name",
            title: "Name",
            sortable: true
        },{
            field: "age",
            title: "Age",
            render: function( data ) {
                return "<strong>" + data.value + "<strong>";
            }
        }]
    })
}); 
</script>

Another simple example with local data

<script type="text/javascript" src="jquery.datagrid.js"></script>
<script type="text/javascript">
$( document ).ready( function() {
    var datagrid = $(container).datagrid({
        data: [{
            firstname: "Bob",
            lastname: "Dylan"
        },{
            firstname: "Jimi",
            lastname: "Hendrix"
        }],
        col: [{
            field: "firstname",
            title: "Firstname"
        },{
            field: "lastname",
            title: "Lastname",
            sortable: true,
            render: function( data ) {
                return "<strong>" + data.value + "<strong>";
            }
        }]
    })
}); 
</script>

Options

// All options with default values
{
    source: "default", // plugin
    url: "",
    data: false,
    autoload: true,
    paramsDefault: {},
    paramsMapping: {
        page: "page",
        paging: "paging",
        orderby: "orderby",
        direction: "direction"
    },
    parse: function( data ) {
        if ( $.type( data ) === 'string' ) {
            return JSON.parse( data );
        } else {
            return data;
        }
    },
    col: [],
    attr: {},
    attrSortable: {},
    noData: "no data",
    onBefore: false,
    onData: false,
    onRowData: false,
    onComplete: false,
    sorter: "default", // plugin
    pager: "default", // plugin
    pagerPosition: "bottom"
}

Options detail

List of option names ( expected values )

Get data

  • source ( string || object || function ) : data fetching method: function, plugin name (string) or plugin name with config (object). - see Source Plugins below
  • url ( string ) : server url where data are fetch (with POST params data). Used by default source.
  • data ( false || array ) : local data (no remote fetch). If not false, source will be automatically set to "data".
  • autoload ( boolean ) : auto load data. If set to false, you need to load manualy the data with datagrid.fetch() method.
  • paramsDefault ( object ) : default params added to the data request.
  • paramsMapping ( object ) : you can map param names used for paging and sorting (keys used: see default value).
  • parse( function ) : callback function that parse data before render. By default, decode data in JSON if data is a string.

Render data

  • col ( array ) : array of column definition objects. - see Column options below
  • attr ( false || object ) : an object of attribute-value pairs: generate the table element attributes.
  • attrSortable ( false || object ) : an object of attribute-value pairs: params for $(th).attr() if column is sortable.
  • noData ( string || function ) : string: it will be displayed instead of the table if there is no data. function: the result returned by the function will be displayed.

Plugins

  • sorter ( string || object ) : display text or icon on table header when columns are sorted (asc or desc). - see Plugins below
  • pager ( string || object ) : render the pager. default pager write page numbers in a span, all in a div. - see Plugins below
  • pagerPosition ( false || "top" || "bottom" || ["top","bottom"] ) : display the pager on "bottom" of the table, or on the "top", or both with ["top","bottom"].

Events

  • onBefore ( false || function ) : callback function(). Scope is datagrid.
  • onData ( false || function ) : callback function( { "total": Total number of data without paging, "data": [ Array of row ] } )
  • onRowData ( false || function ) : callback function( data[ numrow ], numrow, $tr )
  • onComplete ( false || function ) : callback function(). Scope is datagrid.

Columns

Column options

// All column options with default values
{
    field: "",          // Field name
    title: "",          // Title display in the `th`content
    attrHeader: {},     // Param for `$(th).attr()`
    attr: {},           // Param for `$(td).attr()`
    sortable: false,    // `true` activate column sort on `th` click
    render: "default"   // *see cell rendering below*
}

Cell Rendering

How to display td content depends on column render value.

  • Use a plugin registered with "plugin-name" ("default" plugin just display field value)
render: "plugin-name"
  • Use a registered plugin "plugin-name" with params
render: { "plugin-name": params }
  • Use a callback function
render: function( data ){
    // scope (this) is the `$(td)` in the callback
    // fill `td` with `$(td).html( returned value )`
    return data.value;

    // if you return false, `td` content will not be changed
    // you can update cell with `this.html()`, `this.append()`, ...
    this.html( data.value );
    return false;

    // `data` is an object like this
    data = {
        value: "the value of the field key",
        field: "the field key name",
        row: "row data object (row.fieldname = value)", 
        colindex: "column number (first is 0)"
    }
}

Flow of data and events

Fetch

To fetch data and launch the flow, you need to call datagrid fetch( filters ) method.

It will be automatically executed when option.autoload = true.

filters is an optional object of attribute-value pairs. They are merged with paging and sorting params and send when fetching data.

Fetching data do not reset previous params (usefull with auto filters). You can reset params to default with reset() method.

// Scope (this) in the callback is `datagrid` (the plugin).
"onBefore()" event is called (if defined) before fetching data.

How data is fetched depends on source option type:

string or object

Plugin will be used (if it exists).

"default" plugin use $.post( options.url ) to get data. see Source plugin below

deferred function

$.when( options.source() ) is used.

Scope (this) in the callback is the datagrid instance.

So you can get datagrid params with params() method.

After data is fetched from source, render( data ) is called automatically when you defer.resolve( data ).

// example with deferred $.get()
"source": function() {
    return $.get( "url", this.params() );
}
// example with deferred function
"source": function() {
    return $.Deferred(function( defer ) {
        async_call( 
            callback_success( data ) {
                defer.resolve( data );
            },
            callback_error( error ) {
                defer.reject( error );
            }
        );
    }).promise();
}

Parse

Data is parsed by parse() method. Default method parse data with JSON.parse() (if data is a string).

Method can be changed with datagrid parse option.

Data Format

Data format expected to render the datagrid is an object like this:

{
    total: Number of rows (without pagination),
    data: [{
            "fieldname1": value1,
            "fieldname2": value2,
            ...
        },
        {
            "fieldname1": value3,
            "fieldname2": value4,
            ...
        }
    }]
}

Render

HTML table is displayed when datagrid.render( data ) method is called.

// Data is in expected format.
// Data returned replace old data. Return false or nothing to not change data.
"onData( data )" event is called (if defined).

If a sorter plugin is defined, click events are attached on th (if column sortable option is set to true)

// Usefull to change attributes of a `tr`.
// Data returned replace old data. Return false or nothing to not change data.
"onRowData( rowdata, numrow, $tr )" event is called on each "tr" line (if defined).

Each cell is displayed (see cell rendering)

"onComplete()" event is called (if defined) when all is rendered.

Methods

Methods can be called in 2 ways:

  • With selector used to create datagrid
$( selector ).datagrid( "methodName", methodParams );
  • Or with a reference to the datagrid instance
datagrid.methodName( methodParams );

You can get a reference to the datagrid instance with

$( selector ).datagrid( "datagrid" );

// it's chainable
$( selector ).datagrid( "datagrid" ).methodName( methodParams );

Methods list

// fetch source (get data). `filters` is an object of attribute-value pairs (optional).
$( selector ).datagrid( "fetch", filters );
// get page number (first page is 1).
$( selector ).datagrid( "page" );
// set page number. `fetch()` is not called.
$( selector ).datagrid( "page", page );
// get paging number (default paging is 15).
$( selector ).datagrid( "paging" );
// set paging number. `fetch()` is not called.
$( selector ).datagrid( "paging", paging );
// get orderby (default orderby is "").
$( selector ).datagrid( "orderby" );
// set orderby. `fetch()` is not called.
// sorter plugin use field name.
$( selector ).datagrid( "orderby", orderby );
// get direction (default direction is "").
$( selector ).datagrid( "direction" );
// set direction. `fetch()` is not called.
// sorter plugin use "asc" or "desc".
$( selector ).datagrid( "direction", direction );
// get params used for data request.
$( selector ).datagrid( "params" );
// reset params to default.
$( selector ).datagrid( "reset" );
// render HTML table.
$( selector ).datagrid( "render", data );
// define selected form element(s) (and children) as automatic filters. *see __Filters__ below*
$( selector ).datagrid( "filters", selector );

Filters

You can magically add automatic filters with the filters( selector ) method.

It works with all form elements.

// just pass a $element (jquery element) or a "selector" string to the filters method
$( selector ).datagrid( "filters", $element );

// you can also use `datagrid` reference
$( selector ).datagrid( "datagrid").filters( $element );

All form elements (input, select, textarea) contents in the $element win a change event that automatically call datagrid.fetch().

The changed element value is added to the sent params (key is the html element name).

You can disable an element by adding a "data-datagrid-filter"="disable" attribute.

Plugins

If you don't specify a plugin, default plugin is used.

Plugin are used to:

  • fetch data (source plugins)
  • display information on sorted columns header (sorter plugins)
  • display formated data in the table cells (cell plugins)
  • display pagination (pager plugins).

Use a plugin

For each plugin's type, the plugin name is unique. If you add 2 plugins on the same type with the same name, the second will replace the first.

// with default options (or if plugin has no options)
"plugin-type": "plugin-name"
// with options (depends on plugin)
"plugin-type": { "plugin-name": options }

Create a plugin

All plugins are created like this

$.fn.datagrid( "plugin", "plugin-type", "plugin-name", callback );
  • "plugin-type" is a String. Allowed values are "source", "cell", "sorter" or "pager".
  • "plugin-name" is what you want (just a String). If you use "default" name, you'll change default plugin.
  • callback is a Function. Arguments send to the function and expected return value depends on plugin's type (see each type for more information).

Extend a plugin

You can also extend existing plugins

$.fn.datagrid( "plugin", "plugin-type", "new-plugin-name", "extended-plugin-name", options );
  • "plugin-type" is a String. Value need to match with plugin extended.
  • "new-plugin-name" is the name of your new plugin (a String).
  • "extended-plugin-name" is the name of the plugin extended (the "source"). You can extend "default" plugin.
  • options is an Object passed as last argument to "extended-plugin-name" callback when "new-plugin-name" is called. options are merged.

And off course you can extend an extended plugin! :-)

Source plugin

source plugin is used to fetch data.

In the callback, this is the instance of the datagrid plugin. So you can get datagrid params with params() method.

To display the HTML table, you need to call datagrid render( data ) method.

Source plugin "default" (alias "post")

"default" plugin (alias "post") call $.post() to get data. The only option is url. If not set, it use datagrid url option.

Source plugin "data"

"data" plugin is used for local data. You can change sorter and filter functions by your own with sorter and filter options. If data option is filled, it will be used instead of datagrid data option. All options are optional.

$( selector ).datagrid({
    source: {
        data: {
            sorter: function( data, key, comparator ) {
                // `data`: all the data
                // `key`: sorted fieldname
                // `comparator`:  `1` (asc) or `-1` (desc)
                return sortedData;
            },
            filter: function( data, filters ) {
                // `data`: all the data
                // `filters`: object of attribute-value pairs
                return filteredData;
            },
            data: [] // array of object (attribute-value pairs)
        }
    }
});

Source plugin: create custom

// example: "get" instead of "post" ajax
$.fn.datagrid( "plugin", "source", "get", function( sourceOptions ) {
    var options = {
        url: ""
    };
    if ( sourceOptions ) {
        $.extend( options, sourceOptions );
    }
    var datagrid = this;
    $.get( options.url, datagrid.params(), function( result ) {
        datagrid.render( result );
    });
});

Cell plugin

cell plugin is used to render <td> content.

Cell plugin "default"

"default" plugin render the cell value and has no options.

Cell plugin: create custom

// example: "date" display.
// use awesome moment.js (http://momentjs.com).
$.fn.datagrid( "plugin", "cell", "date", function( data, cellOptions ) {
    var options = {
        format: "DD/MM/YYYY"
    };
    if ( cellOptions ) {
        $.extend( options, cellOptions );
    }
    return moment( data.value ).format( options.format );
});

And you can extend it like other plugins

// example: "date-us" display.
$.fn.datagrid( "plugin", "cell", "date-us", "date", { format: "MM/DD/YYYY" } );

Sorter plugin

sorter plugin is used to display information on sorted column (icons, chevron, arrow, ... or what you want !).

Sorter plugin "default"

"default" plugin options are { up: " ↑", down: " ↓" }.

In the callback, this is the $(th). You don't need to return value. Use this to change the <th> content.

Column title is already displayed when callback is executed. You can use this.html() to get title.

Sorter plugin: create custom

You can extend "default" plugin like this

$.fn.datagrid( "plugin", "sorter", "text", "default", { up: " - up", down: " - down" } );

Or define a new plugin with a callback function. ascendant argument is a Boolean (true for ascendant sorted column, false for descendant).

// example: just write "up" or "down"
$.fn.datagrid( "plugin", "sorter", "text", function( ascendant, sorterOptions ) {
    if ( ascendant ) {
        this.append( " up" );
    } else {
        this.append( " down" );
    }
});

You don't need to handle click events on sortable columns. sorter plugins are just renderers.

Pager plugin

pager plugin is used to display pager section (returns HTML).

Pager plugin "default"

"default" plugin handle click events on page items.

Default options are

{
    // pager element wrapper
    container: "div",
    // pager element wrapper attributes set by `container.attr( attrContainer )`
    attrContainer: {},
    // if `item` is "li", append an `ul` element to the `container` and set `ul` attributes with `ul.attr( attrUl )`
    attrUl: {},
    // html element used for pages: "span", "div", "li" (auto insert ul)
    item: "span",
    // attributes set to active page item (current page)
    attrItemActive: {},
    // attributes set to disabled page items
    attrItemDisabled: {},
    // html display before page number
    before: " ",
    // html display after page number
    after: " ",
    // if `link = true`, wrap page number with an `a` HTML tag
    link: false,
    // if `firstPage !== false`, add a page item "first"
    // Display value as text (for example `firstPage: "first page"`)
    firstPage: false,
    // if `prevPage !== false`, add a page item "previous"
    // Display value as text (for example `prevPage: "previous page"`)
    prevPage: false,
    // if `nextPage !== false`, add a page item "next"
    // Display value as text (for example `nextPage: "next page"`)
    nextPage: false,
    // if `lastPage !== false`, add a page item "last"
    // Display value as text (for example `lastPage: "last page"`)
    lastPage: false,
    // if `hideDisabled = true`, hide disabled pages
    // (for example, hide `firstPage` and `prevPage` when current page is 1)
    hideDisabled: false,
    // behavior = false (show all pages)
    // behavior = "sliding" (current page always on middle of the pager)
    // behavior = { "sliding": { "pages": 3 } } (change number of pages displayed before and after current page)
    behavior: false
}

Pager plugin: create custom

You can write you own pager from scratch with a callback function.

this in this callback is the datagrid instance.

$.fn.datagrid( "plugin", "pager", "scratch-pager", function( page, lastpage, pagerOptions ) {
    // your pager logic, based on "page" (current page) and "lastpage"
    var datagrid = this;
    var html = ...;
    // you must return html pager
    return html;
});

You don't need to handle click events on page items: they are automatically attached on elements with datagrid-page class. You just need to set target page with data-page attribute.

License

jquery.datagrid is distributed under MIT License.

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