datatable-datalet.html 5.1 KB
<!--
@license
    The MIT License (MIT)

    Copyright (c) 2015 Dipartimento di Informatica - Universit� di Salerno - Italy

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<!--
* Developed by :
* ROUTE-TO-PA Project - grant No 645860. - www.routetopa.eu
*
-->

<link rel="import" href="../base-ajax-json-jsonpath-datalet/base-ajax-json-jsonpath-datalet.html">

<!--
The `datatable-datalet` is a porting of Datatables JQuery library in a web component that has built up by using Polymer.
Pass to this component a data url(CKAN api uri) and a string with one or multiple query in JsonPath format(separated by spaces) and it'll show a
table with data and query attributes with all Datatables library features.

Example:

    <datatable-datalet
        data-url="http://ckan.routetopa.eu/api/action/datastore_search?resource_id=#"
        fields='["field1","field2"]'>
    </datatables-datalet>

@element datatable-datalet
@status v0.1
@demo demo/index.html
@group datalets
-->

<dom-module id="dynamic-datatable-datalet">
    <template>
        <link rel="stylesheet" type="text/css" href="js/DataTables/datatables.css"/>

        <span id="_span"></span>

        <base-ajax-json-jsonpath-datalet data-url="{{dataUrl}}" fields="{{fields}}" data="{{data}}"></base-ajax-json-jsonpath-datalet>
    </template>

    <script type="text/javascript" src="js/DataTables/datatables.js"></script>

    <script>
        var DatatableBehavior = {

            presentData: function(){
                var html = "<table id=\"dynamic-datatable\" class=\"stripe row-border\" cellspacing=\"0\"  style=\"height: auto; width: auto;\">";

                if(!this.data || this.data[0] == undefined) return;
                html += '<thead>'+
                           '<tr>';
                for(var x = 0; x<this.data.length; x++){
                   html += '<th>' + this.data[x].name + '</th>';
                }
                html +=  '</tr>' +
                         '</thead>' +
                        '<tbody>';
                for(var i = 0; i<this.data[0].data.length; i++){
                    html += '<tr>';
                    for(var x = 0; x<this.data.length; x++){
                      html += '<td>' + this.data[x].data[i] + '</td>';
                    }
                    html += '</tr>';
                }
                html += '</tbody></table>';

                $(this._component.$._span).html(html);
                $(this._component.$._span.childNodes[0]).DataTable();
            },

            _destroy: function(){
                if(this._component){//evita caso init
                    $(this._component.$._span).html("");
                    //$(this._component.$.datatable).DataTable().destroy();
                    this._component.behavior.selectData();
                    this._component.behavior.presentData();
                }
            }

        };

        Polymer({
            is : 'dynamic-datatable-datalet' ,

            properties: {
                /**
                 * It's the component behavior
                 *
                 * @attribute behavior
                 * @type Object
                 * @default {}
                 */
                behavior : {
                    type : Object,
                    value : {}
                },

                fields : {
                    observer: '_reload'
                }

            },

            ready: function(){
                this.behavior =  $.extend(true, {}, BaseDataletBehavior, WorkcycleBehavior, AjaxJsonJsonPathBehavior, DatatableBehavior);
                this.async(function(){this.behavior.init(this)}, 0);
            },

            _reload: function(){

                if(this.fields.constructor == Array);//fields in selectData --> from Array to String
                else{
                    this.behavior._destroy();
//                    this.behavior.selectData();
//                    this.behavior.presentData();
                }
            }
        });

    </script>
</dom-module>