dynamic-datatable-datalet.html 5.27 KB
<!--
@license
    The MIT License (MIT)

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

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    The above copyright notice and this permission notice shall be included in
    all copies or substantial portions of the Software.

    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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<!--
* Developed by :
* ROUTE-TO-PA Project - grant No 645860. - www.routetopa.eu
*
-->

<link rel="import" href="../base-ajax-json-alasql-datalet/base-ajax-json-alasql-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-alasql-datalet data-url="{{dataUrl}}" fields="{{fields}}" data="{{data}}"></base-ajax-json-alasql-datalet>
    </template>

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

    <script>
        var DynamicDatatableBehavior = {

            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({"order": []});
            },

            _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'
                }

//                filters : {
//                    observer: '_reload'
//                }

            },

            ready: function(){
                $(this).find("base-datalet")[0].hideFooter();

                this.behavior =  $.extend(true, {}, BaseDataletBehavior, WorkcycleBehavior, AjaxJsonAlasqlBehavior, DynamicDatatableBehavior);
                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>