1

我正在尝试通过此链接在聚合物内部实现数据表过滤器https://jsfiddle.net/bindrid/2bkbx2y3/6/

但是当我应用到聚合物中时，我发现在将插件方法推送到数据表时会出现一些问题。在聚合物中，我使用 vaadin-date-picker 作为日期选择器，这是我的代码：

  1. HTML

    <template>
<form class="form-inline m-b">
    <div class="form-group form-group-sm">
        <vaadin-date-picker id="min" placeholder="Start"></vaadin-date-picker>
        <vaadin-date-picker id="max" placeholder="End"></vaadin-date-picker>
    </div>
</form>
<table id="mainTable" class="table table-condensed table-striped table-bordered" style="width: 100%">
    <thead>
        <tr>
            <th>STAD</th>
        </tr>
    </thead>
</table>

  2. 脚本 ：

    class DataTableD extends Polymer.Element {
    static get is() {
        return 'data-table-d';
    }

    ready() {
        super.ready();

        var min     = this.$.min;
        var max     = this.$.max;

        //push method into search
        $.fn.dataTable.ext.search.push(function (settings, data, dataIndex) {
            alert("min . ." + min) //min . .[object HTMLElement]
            var startDate = new Date(data[0].replace( /(\d{2})-(\d{2})-(\d{4})/, "$2/$1/$3"));
            if (min == null && max == null) {alert("startDate . ." + startDate);}
            if (min == null && startDate <= max) {alert("startDate . ." + startDate);}
            if (max == null && startDate >= min) {alert("startDate . ." + startDate);}
            if (startDate <= max && startDate >= min) {alert("startDate . ." + startDate);}

            return false;

        });
        // Event listener to the two range filtering inputs to redraw on                                
        min.addEventListener('value-changed', function() {
            window.setTimeout(function() {
                max.value = min.value;
                max.open();
            }, 500);

            this.$.mainTable.draw();
        });

    }

    _initializeDatatable() {
        if ( ! this.$mainTable) {
            // Make the jQuery object of the mainForm and arrivalTable.
            this.$mainTable = $(this.$.mainTable);
        }

        this._dataTable = this.$mainTable.DataTable({
        });
    }
}
window.customElements.define(DataTableD.is, DataTableD);

希望有人可以分享这个想法，使其工作，thx

============================

4

1 回答 1

1

下面我试图说明另一种过滤方式：

演示

HTMLImports.whenReady( ()=> {
  
class DataTableD extends Polymer.Element {
    static get is() {
        return 'data-table-d';
    }
    static get properties() {
       return {
          minDate:{type:String },
          maxDate:{type:String }
    }}
    static get observers(){
       return ['_checkMinMaxDate(minDate, maxDate)']
    }
    ready() {
        super.ready();
    }


  _checkMinMaxDate(min,max) {
    console.log("Min-max:", min,max, this.items, this.xitems);
    var minn = min==="" ? "1000/01/01":min;
    var maxx = max==="" ? "2050/01/01":max;
    var newItems =  this.items.filter( (el)=> {
         return el.Startdate <= maxx &&
         el.Startdate >= minn ;
});
    this.set('xitems', newItems);
    
  }
}
window.customElements.define(DataTableD.is, DataTableD)

})
<head>
  <script
  src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
  <base href="https://cdn.rawgit.com/download/polymer-cdn/2.6.0.2/lib/">
  <script src="webcomponentsjs/webcomponents-lite.js"></script>
  <link rel="import" href="polymer/polymer.html">
  <link rel="import" href="https://cdn-origin.vaadin.com/vaadin-core-elements/master/vaadin-date-picker/vaadin-date-picker.html">
  <link rel="import" href="https://cdn-origin.vaadin.com/vaadin-core-elements/master/vaadin-grid/all-imports.html">
 
</head>

<body>
<data-table-d id="tableDat" items="{{items}}"></data-table-d>
  
<dom-module id="data-table-d">
<template>
<style>
     vaadin-grid{
         height: 100%;
         font-size: 14px;
     }
     vaadin-grid:hover {
        cursor: pointer;
     }
</style>
        <vaadin-date-picker id="min" placeholder="Start" value="{{minDate}}" on-change="_checkMinMaxDate"></vaadin-date-picker>
        <vaadin-date-picker id="max" placeholder="End" value={{maxDate}}  on-change="_checkMinMaxDate"></vaadin-date-picker><br><br><br><br>
  
         <vaadin-grid aria-label="Companies" items="[[xitems]]" multi-sort>

               <vaadin-grid-column>
                 <template class="header">
                   <vaadin-grid-filter path="Name"> </vaadin-grid-filter>
                   <vaadin-grid-sorter path="Name">Name</vaadin-grid-sorter>
                 </template>

                <template>[[item.Name]]</template>
               </vaadin-grid-column>
           
               <vaadin-grid-column>
                <template class="header">
                   <vaadin-grid-filter path="Position"> </vaadin-grid-filter>
                   <vaadin-grid-sorter path="Position">Position</vaadin-grid-sorter>
                 </template>

                <template>[[item.Position]]</template>
               </vaadin-grid-column>
           
              <vaadin-grid-column>
                <template class="header">
                   <vaadin-grid-filter path="Office"> </vaadin-grid-filter>
                   <vaadin-grid-sorter path="Office">Office</vaadin-grid-sorter>
                 </template>

                <template>[[item.Office]]</template>
               </vaadin-grid-column>
           
               <vaadin-grid-column>
                <template class="header">
                   <vaadin-grid-filter path="Age"> </vaadin-grid-filter>
                   <vaadin-grid-sorter path="Age">Age</vaadin-grid-sorter>
                 </template>

                <template>[[item.Age]]</template>
               </vaadin-grid-column>
                    
               <vaadin-grid-column>
                <template class="header">
                   <vaadin-grid-filter path="Startdate"> </vaadin-grid-filter>
                   <vaadin-grid-sorter path="Startdate">Start date</vaadin-grid-sorter>
                 </template>

                <template>[[item.Startdate]]</template>
               </vaadin-grid-column>
                    
               <vaadin-grid-column>
                <template class="header">
                   <vaadin-grid-filter path="Salary"> </vaadin-grid-filter>
                   <vaadin-grid-sorter path="Salary">Salary</vaadin-grid-sorter>
                 </template>

                <template>[[item.Salary]]</template>
               </vaadin-grid-column>           

             </vaadin-grid>
  
</template>
</dom-module>
  
  
  
<!-- BELOW TABLE JUST FOR DATA TO PASS IN POLYMER -->  
<table style="display:none;" width="100%" class="display" id="example" cellspacing="0">
        <thead>
            <tr>
                <th>Name</th>
                <th>Position</th>
                <th>Office</th>
                <th>Age</th>
                <th>Startdate</th>
                <th>Salary</th>
            </tr>
        </thead>
        <tfoot>
            <tr>
                <th>Name</th>
                <th>Position</th>
                <th>Office</th>
                <th>Age</th>
                <th>Start date</th>
                <th>Salary</th>
            </tr>
        </tfoot>
        <tbody>
            <tr>
                <td>Tiger Nixon</td>
                <td>System Architect</td>
                <td>Edinburgh</td>
                <td>61</td>
                <td>2011/04/25</td>
                <td>$320,800</td>
            </tr>
            <tr>
                <td>Garrett Winters</td>
                <td>Accountant</td>
                <td>Tokyo</td>
                <td>63</td>
                <td>2011/07/25</td>
                <td>$170,750</td>
            </tr>
            <tr>
                <td>Ashton Cox</td>
                <td>Junior Technical Author</td>
                <td>San Francisco</td>
                <td>66</td>
                <td>2009/01/12</td>
                <td>$86,000</td>
            </tr>
            <tr>
                <td>Cedric Kelly</td>
                <td>Senior Javascript Developer</td>
                <td>Edinburgh</td>
                <td>22</td>
                <td>2012/03/29</td>
                <td>$433,060</td>
            </tr>
            <tr>
                <td>Airi Satou</td>
                <td>Accountant</td>
                <td>Tokyo</td>
                <td>33</td>
                <td>2008/11/28</td>
                <td>$162,700</td>
            </tr>
            <tr>
                <td>Brielle Williamson</td>
                <td>Integration Specialist</td>
                <td>New York</td>
                <td>61</td>
                <td>2012/12/02</td>
                <td>$372,000</td>
            </tr>
            <tr>
                <td>Herrod Chandler</td>
                <td>Sales Assistant</td>
                <td>San Francisco</td>
                <td>59</td>
                <td>2012/08/06</td>
                <td>$137,500</td>
            </tr>
            <tr>
                <td>Rhona Davidson</td>
                <td>Integration Specialist</td>
                <td>Tokyo</td>
                <td>55</td>
                <td>2010/10/14</td>
                <td>$327,900</td>
            </tr>
            <tr>
                <td>Colleen Hurst</td>
                <td>Javascript Developer</td>
                <td>San Francisco</td>
                <td>39</td>
                <td>2009/09/15</td>
                <td>$205,500</td>
            </tr>
            <tr>
                <td>Sonya Frost</td>
                <td>Software Engineer</td>
                <td>Edinburgh</td>
                <td>23</td>
                <td>2008/12/13</td>
                <td>$103,600</td>
            </tr>
            <tr>
                <td>Jena Gaines</td>
                <td>Office Manager</td>
                <td>London</td>
                <td>30</td>
                <td>2008/12/19</td>
                <td>$90,560</td>
            </tr>
            <tr>
                <td>Quinn Flynn</td>
                <td>Support Lead</td>
                <td>Edinburgh</td>
                <td>22</td>
                <td>2013/03/03</td>
                <td>$342,000</td>
            </tr>
            <tr>
                <td>Charde Marshall</td>
                <td>Regional Director</td>
                <td>San Francisco</td>
                <td>36</td>
                <td>2008/10/16</td>
                <td>$470,600</td>
            </tr>
            <tr>
                <td>Haley Kennedy</td>
                <td>Senior Marketing Designer</td>
                <td>London</td>
                <td>43</td>
                <td>2012/12/18</td>
                <td>$313,500</td>
            </tr>
            <tr>
                <td>Tatyana Fitzpatrick</td>
                <td>Regional Director</td>
                <td>London</td>
                <td>19</td>
                <td>2010/03/17</td>
                <td>$385,750</td>
            </tr>
            <tr>
                <td>Michael Silva</td>
                <td>Marketing Designer</td>
                <td>London</td>
                <td>66</td>
                <td>2012/11/27</td>
                <td>$198,500</td>
            </tr>
            <tr>
                <td>Paul Byrd</td>
                <td>Chief Financial Officer (CFO)</td>
                <td>New York</td>
                <td>64</td>
                <td>2010/06/09</td>
                <td>$725,000</td>
            </tr>
            <tr>
                <td>Gloria Little</td>
                <td>Systems Administrator</td>
                <td>New York</td>
                <td>59</td>
                <td>2009/04/10</td>
                <td>$237,500</td>
            </tr>
            <tr>
                <td>Bradley Greer</td>
                <td>Software Engineer</td>
                <td>London</td>
                <td>41</td>
                <td>2012/10/13</td>
                <td>$132,000</td>
            </tr>
            <tr>
                <td>Dai Rios</td>
                <td>Personnel Lead</td>
                <td>Edinburgh</td>
                <td>35</td>
                <td>2012/09/26</td>
                <td>$217,500</td>
            </tr>
            <tr>
                <td>Jenette Caldwell</td>
                <td>Development Lead</td>
                <td>New York</td>
                <td>30</td>
                <td>2011/09/03</td>
                <td>$345,000</td>
            </tr>
            <tr>
                <td>Yuri Berry</td>
                <td>Chief Marketing Officer (CMO)</td>
                <td>New York</td>
                <td>40</td>
                <td>2009/06/25</td>
                <td>$675,000</td>
            </tr>
            <tr>
                <td>Caesar Vance</td>
                <td>Pre-Sales Support</td>
                <td>New York</td>
                <td>21</td>
                <td>2011/12/12</td>
                <td>$106,450</td>
            </tr>
            <tr>
                <td>Doris Wilder</td>
                <td>Sales Assistant</td>
                <td>Sidney</td>
                <td>23</td>
                <td>2010/09/20</td>
                <td>$85,600</td>
            </tr>
            <tr>
                <td>Angelica Ramos</td>
                <td>Chief Executive Officer (CEO)</td>
                <td>London</td>
                <td>47</td>
                <td>2009/10/09</td>
                <td>$1,200,000</td>
            </tr>
            <tr>
                <td>Gavin Joyce</td>
                <td>Developer</td>
                <td>Edinburgh</td>
                <td>42</td>
                <td>2010/12/22</td>
                <td>$92,575</td>
            </tr>
            <tr>
                <td>Jennifer Chang</td>
                <td>Regional Director</td>
                <td>Singapore</td>
                <td>28</td>
                <td>2010/11/14</td>
                <td>$357,650</td>
            </tr>
            <tr>
                <td>Brenden Wagner</td>
                <td>Software Engineer</td>
                <td>San Francisco</td>
                <td>28</td>
                <td>2011/06/07</td>
                <td>$206,850</td>
            </tr>
            <tr>
                <td>Fiona Green</td>
                <td>Chief Operating Officer (COO)</td>
                <td>San Francisco</td>
                <td>48</td>
                <td>2010/03/11</td>
                <td>$850,000</td>
            </tr>
            <tr>
                <td>Shou Itou</td>
                <td>Regional Marketing</td>
                <td>Tokyo</td>
                <td>20</td>
                <td>2011/08/14</td>
                <td>$163,000</td>
            </tr>
            <tr>
                <td>Michelle House</td>
                <td>Integration Specialist</td>
                <td>Sidney</td>
                <td>37</td>
                <td>2011/06/02</td>
                <td>$95,400</td>
            </tr>
            <tr>
                <td>Suki Burks</td>
                <td>Developer</td>
                <td>London</td>
                <td>53</td>
                <td>2009/10/22</td>
                <td>$114,500</td>
            </tr>
            <tr>
                <td>Prescott Bartlett</td>
                <td>Technical Author</td>
                <td>London</td>
                <td>27</td>
                <td>2011/05/07</td>
                <td>$145,000</td>
            </tr>
            <tr>
                <td>Gavin Cortez</td>
                <td>Team Leader</td>
                <td>San Francisco</td>
                <td>22</td>
                <td>2008/10/26</td>
                <td>$235,500</td>
            </tr>
            <tr>
                <td>Martena Mccray</td>
                <td>Post-Sales support</td>
                <td>Edinburgh</td>
                <td>46</td>
                <td>2011/03/09</td>
                <td>$324,050</td>
            </tr>
            <tr>
                <td>Unity Butler</td>
                <td>Marketing Designer</td>
                <td>San Francisco</td>
                <td>47</td>
                <td>2009/12/09</td>
                <td>$85,675</td>
            </tr>
            <tr>
                <td>Howard Hatfield</td>
                <td>Office Manager</td>
                <td>San Francisco</td>
                <td>51</td>
                <td>2008/12/16</td>
                <td>$164,500</td>
            </tr>
            <tr>
                <td>Hope Fuentes</td>
                <td>Secretary</td>
                <td>San Francisco</td>
                <td>41</td>
                <td>2010/02/12</td>
                <td>$109,850</td>
            </tr>
            <tr>
                <td>Vivian Harrell</td>
                <td>Financial Controller</td>
                <td>San Francisco</td>
                <td>62</td>
                <td>2009/02/14</td>
                <td>$452,500</td>
            </tr>
            <tr>
                <td>Timothy Mooney</td>
                <td>Office Manager</td>
                <td>London</td>
                <td>37</td>
                <td>2008/12/11</td>
                <td>$136,200</td>
            </tr>
            <tr>
                <td>Jackson Bradshaw</td>
                <td>Director</td>
                <td>New York</td>
                <td>65</td>
                <td>2008/09/26</td>
                <td>$645,750</td>
            </tr>
            <tr>
                <td>Olivia Liang</td>
                <td>Support Engineer</td>
                <td>Singapore</td>
                <td>64</td>
                <td>2011/02/03</td>
                <td>$234,500</td>
            </tr>
            <tr>
                <td>Bruno Nash</td>
                <td>Software Engineer</td>
                <td>London</td>
                <td>38</td>
                <td>2011/05/03</td>
                <td>$163,500</td>
            </tr>
            <tr>
                <td>Sakura Yamamoto</td>
                <td>Support Engineer</td>
                <td>Tokyo</td>
                <td>37</td>
                <td>2009/08/19</td>
                <td>$139,575</td>
            </tr>
            <tr>
                <td>Thor Walton</td>
                <td>Developer</td>
                <td>New York</td>
                <td>61</td>
                <td>2013/08/11</td>
                <td>$98,540</td>
            </tr>
            <tr>
                <td>Finn Camacho</td>
                <td>Support Engineer</td>
                <td>San Francisco</td>
                <td>47</td>
                <td>2009/07/07</td>
                <td>$87,500</td>
            </tr>
            <tr>
                <td>Serge Baldwin</td>
                <td>Data Coordinator</td>
                <td>Singapore</td>
                <td>64</td>
                <td>2012/04/09</td>
                <td>$138,575</td>
            </tr>
            <tr>
                <td>Zenaida Frank</td>
                <td>Software Engineer</td>
                <td>New York</td>
                <td>63</td>
                <td>2010/01/04</td>
                <td>$125,250</td>
            </tr>
            <tr>
                <td>Zorita Serrano</td>
                <td>Software Engineer</td>
                <td>San Francisco</td>
                <td>56</td>
                <td>2012/06/01</td>
                <td>$115,000</td>
            </tr>
            <tr>
                <td>Jennifer Acosta</td>
                <td>Junior Javascript Developer</td>
                <td>Edinburgh</td>
                <td>43</td>
                <td>2013/02/01</td>
                <td>$75,650</td>
            </tr>
            <tr>
                <td>Cara Stevens</td>
                <td>Sales Assistant</td>
                <td>New York</td>
                <td>46</td>
                <td>2011/12/06</td>
                <td>$145,600</td>
            </tr>
            <tr>
                <td>Hermione Butler</td>
                <td>Regional Director</td>
                <td>London</td>
                <td>47</td>
                <td>2011/03/21</td>
                <td>$356,250</td>
            </tr>
            <tr>
                <td>Lael Greer</td>
                <td>Systems Administrator</td>
                <td>London</td>
                <td>21</td>
                <td>2009/02/27</td>
                <td>$103,500</td>
            </tr>
            <tr>
                <td>Jonas Alexander</td>
                <td>Developer</td>
                <td>San Francisco</td>
                <td>30</td>
                <td>2010/07/14</td>
                <td>$86,500</td>
            </tr>
            <tr>
                <td>Shad Decker</td>
                <td>Regional Director</td>
                <td>Edinburgh</td>
                <td>51</td>
                <td>2008/11/13</td>
                <td>$183,000</td>
            </tr>
            <tr>
                <td>Michael Bruce</td>
                <td>Javascript Developer</td>
                <td>Singapore</td>
                <td>29</td>
                <td>2011/06/27</td>
                <td>$183,000</td>
            </tr>
            <tr>
                <td>Donna Snider</td>
                <td>Customer Support</td>
                <td>New York</td>
                <td>27</td>
                <td>2011/01/25</td>
                <td>$112,000</td>
            </tr>
        </tbody>
    </table>
  
  
<script>
    var myRows = [];
    var headersText = [];
    var $headers = $("th");

    // Loop through grabbing everything
    var $rows = $("tbody tr").each(function(index) {
      $cells = $(this).find("td");
      myRows[index] = {};

      $cells.each(function(cellIndex) {
        // Set the header text
        if(headersText[cellIndex] === undefined) {
          headersText[cellIndex] = $($headers[cellIndex]).text();
        }
        // Update the row object with the header/cell combo
        myRows[index][headersText[cellIndex]] = $(this).text();
      });    
    });
    var el = document.getElementById('tableDat')
    el.items=myRows;

  
  </script>
</body>

编辑

如何在 Polymer 外部传递数据

_checkMinMaxDate(min,max) {

    this.dispatchEvent(new CustomEvent('date-changed', { bubbles: true, composed: true, detail: {items:this.items, startDate:min, endDate:max }}));
}

聚合物之外：

window.addEventListener('date-changed', (e)=> { 
     console.log(e.detail.items) // your items 
     console.log(e.detail.startDate) // Date to start 
     console.log(e.detail.endDate) // Date to end.
})
于 2019-02-01T05:26:01.827 回答