[ExtJS5学习笔记]第三十六节 报表组件mzPivotGrid

mzPivotGrid 是一个报表组件，采用这个组件之后，可以令你的应用体现更多的价值。

什么是pivot grid

extjs的面板panel对于展示大批量数据来说是pefect的，并且还提供了各种各样的展示方式。但是唯一缺少一个pivot grid，当需要做数据报表的时候，pivot grid就起作用了。

什么是mzPivotGrid

mzPivotGrid是可以在extjs中使用的表格报表组件，你只需要引入组件就可以制作报表了。

学习资源

官方网站： http://www.mzsolutions.eu/mzPivotGrid.html
extjs官网推荐博客:http://www.sencha.com/blog/mzpivotgrid-a-pivot-table-for-ext-js?mkt_tok=3RkMMJWWfF9wsRokvq3BZKXonjHpfsX77%2BsqWK%2B0lMI%2F0ER3fOvrPUfGjI4JSMZ0dvycMRAVFZl5nR9dFOOdfQ%3D%3D

API DOChttp://www.mzsolutions.eu/docs/

与图表组件的融合

看效果图;

而完成这个报表仅仅需要以下这些代码即可。

Ext.onReady(function() {
Ext.tip.QuickTipManager.init();

var height = 250, width = 700;

var store = new Ext.data.JsonStore({
    filters: [
        function(item) {
            return item.get('year') >= 2012;
        }
    ],
    proxy: {
        type:       'ajax',
        url:        'charts.json',
        reader: {
            type:       'json',
            root:       'rows'
        }
    },
    autoLoad:   true,
    fields: [
        {name: 'orderid',       type: 'int'},
        {name: 'salesperson',   type: 'string'},
        {name: 'country',       type: 'string'},
        {name: 'orderdate',     type: 'date', dateFormat: 'd/m/Y'},
        {name: 'amount',        type: 'int'},
        {
            name: 'person-range',
            convert: function(v, record){
                if(/^[a-j]/i.test(record.get('salesperson'))) return 'A-J';
                if(/^[k-s]/i.test(record.get('salesperson'))) return 'K-S';
                if(/^[t-z]/i.test(record.get('salesperson'))) return 'T-Z';
                return v;
            }
        },{
            name: 'year',
            convert: function(v, record){
                return Ext.Date.format(record.get('orderdate'), "Y");
            }
        }
    ]
});

var pivotChart = null;

var pivotGrid = Ext.create('Mz.pivot.Grid', {
    renderTo:       document.body,
    title:          'Chart integration',
    height:         height,
    width:          width,
    enableLocking:  false,
    enableGrouping: true,
    viewConfig: {
        trackOver:      true,
        stripeRows:     false
    },

    tbar: [{
        xtype:          'combo',
        itemId:            'idSelect',
        fieldLabel:     'Select report',
        flex:             1,
        editable:         false,
        //value: 'r1',
        store: [
            ['r1', 'What are the order amounts of each salesperson?'],
            ['r2', 'What are the order amounts of each salesperson in a specific country?'],
            ['r3', 'How did salespeople perform in a specific year?']
        ],
        listeners: {
            change: function(combo, newValue, oldValue, eOpts){
                switch(newValue){
                    case 'r1':
                        pivotGrid.reconfigurePivot({
                            topAxis: []
                        });
                    break;

                    case 'r2':
                        pivotGrid.reconfigurePivot({
                            topAxis: [{
                                dataIndex:  'country',
                                direction:  'ASC'
                            }]
                        });
                    break;

                    case 'r3':
                        pivotGrid.reconfigurePivot({
                            topAxis: [{
                                dataIndex:  'year',
                                direction:  'ASC'
                            }]
                        });
                    break;
                }
            }
        }
    }],

    store: store,

    aggregate: [{
        measure:    'amount',
        header:     'Sales',
        aggregator: 'sum',
        align:      'right',
        width:      85,
        renderer:   Ext.util.Format.numberRenderer('0,000.00')
    }],

    caption:  '',
    leftAxis: [{
        width:      80,
        id:         'salesperson',
        dataIndex:  'salesperson',
        header:     'Sales person'
    }],

    topAxis: [],

    listeners: {
        afterrender: function(pivotGrid){
            setTimeout(function(){
                var combo = pivotGrid.down('#idSelect');
                combo.select(combo.getStore().getAt(0));
            }, 100);
        },

        pivotdone: function(){
            if(pivotChart){
                pivotChart.destroy();
            }
            var fields = [],
                titles = [],
                columns = pivotGrid.headerCt.getGridColumns();

            for(var i = 0; i < columns.length; i++){
                if(!columns[i].leftAxis){
                    fields.push(columns[i].dataIndex);
                    titles.push(columns[i].text);
                }
            }

            pivotChart = Ext.create('Ext.chart.Chart', {
                renderTo:       document.body,
                width:          width,
                height:         height,
                store:          pivotGrid.getPivotStore(),
                legend: {
                    position:   'top'
                },
                axes: [{
                    title:      'Sales person',
                    type:       'Category',
                    fields:     ['salesperson'],
                    position:   'bottom'
                },{
                    title:      'Total',
                    fields:     fields,
                    type:       'Numeric',
                    position:   'left'
                }],
                series: [{
                    type:       'column',
                    highlight:  true,
                    axis:       'bottom',
                    xField:     'salesperson',
                    yField:     fields,
                    title:      titles
                }]
            });                
        }
    }
});

});

看不同层次的报表只需要一次配置即可