uas6.0/WebContent/app/view/plm/task/TaskGrid.js

Ext.require([
    'erp.util.*' 
]);
Ext.define('erp.view.plm.task.TaskGrid',{ 
	extend: 'Ext.grid.Panel', 
	alias: 'widget.erpTaskGridPanel',
	layout : 'auto',
	id: 'grid', 
 	emptyText : '无数据',
    columnLines : true,
    autoScroll : true,
    store: [],
    columns: new Array(),
    bodyStyle:'background-color:#f1f1f1;',
    selModel: Ext.create('Ext.selection.CheckboxModel',{
    	headerWidth: 0
	}),
	dockedItems: [{
    	id : 'pagingtoolbar',
        xtype: 'erpDatalistToolbar',
        dock: 'bottom',
        displayInfo: true
	}],
    plugins: [Ext.create('Ext.ux.grid.GridHeaderFilters')],
	BaseUtil: Ext.create('erp.util.BaseUtil'),
	RenderUtil:Ext.create('erp.util.RenderUtil'),
	initComponent : function(){ 
    	caller = this.BaseUtil.getUrlParam('whoami');
    	var datalistcondition=condition.replace(/prj_id/g,"prjplanid");
		this.getCount(caller, datalistcondition);
		this.callParent(arguments); 
	} ,
	getColumnsAndStore: function(caller, condition, page, pageSize){
		var me = this;
		me.BaseUtil.getActiveTab().setLoading(true);//loading...
		Ext.Ajax.request({//拿到grid的columns
        	url : basePath + 'common/datalist.action',
        	params: {
        		_noc: 1,
        		caller: caller,
        		condition:  condition, 
        		page: page,
        		pageSize: pageSize
        	},
        	method : 'post',
        	callback : function(options,success,response){
        		me.BaseUtil.getActiveTab().setLoading(false);
        		var res = new Ext.decode(response.responseText);
        		if(res.exception || res.exceptionInfo){
        			showError(res.exceptionInfo);
        			return;
        		}
        		var data = res.data != null ? Ext.decode(res.data.replace(/,}/g, '}').replace(/,]/g, ']')) : [];//一定要去掉多余逗号，ie对此很敏感
        		if(me.columns && me.columns.length> 2){
        			me.store.loadData(data);
        			Ext.getCmp('pagingtoolbar').afterOnLoad();
        		} else {
        			var store = Ext.create('Ext.data.Store', {
            		    fields: res.fields,
            		    data: data
            		});
    				//处理render
                    Ext.Array.each(res.columns, function(column) {   
                    	if(column.renderer != null && column.renderer != ""){
                    		var renderName = column.renderer; 
                    		column.renderer = me.RenderUtil[renderName];
                    	}
                    });            
            		Ext.getCmp('grid').reconfigure(store, res.columns);//用这个方法每次都会add一个checkbox列
        		}
        		//修改pagingtoolbar信息
        		Ext.getCmp('pagingtoolbar').afterOnLoad();
        		//拿到datalist对应的单表的关键词
        		keyField = res.keyField;//form表主键字段
        		pfField = res.pfField;//grid表主键字段
        		url = basePath + res.url;//grid行选择之后iframe嵌入的页面链接
        	}
        });
	},
	getCount: function(caller, condition){
		var me = this;
		Ext.Ajax.request({//拿到grid的数据总数count
        	url : basePath + '/common/datalistCount.action',
        	params: {
        		caller: caller,
        		condition: condition
        	},
        	method : 'post',
        	callback : function(options,success,response){
        		var res = new Ext.decode(response.responseText);
        		if(res.exception || res.exceptionInfo){
        			showError(res.exceptionInfo);
        			return;
        		}
        		dataCount = res.count;
        		me.getColumnsAndStore(caller, condition, page, pageSize);
        	}
        });
	},
	listeners: {
        'beforeheaderfiltersapply': function(grid, filters) {
        	var condition = "1=1";
            for(var fn in filters){
                var value = filters[fn];
                if(!Ext.isEmpty(value)){
                	value = " AND " + fn + " LIKE '%" + value + "%' ";
                	Ext.each(grid.columns, function(c){
    					if(c.dataIndex == fn && c.xtype == 'datecolumn'){//日期形式的特殊处理成oracle支持的格式哦
    						value = " AND " + fn + "=to_date('" + Ext.Date.toString(filters[fn]) + "','YYYY-MM-DD') ";
    					}
    				});
                    condition = condition + value;
                }
            }
            if (condition == "1=1") return false;
            this.getColumnsAndStore(caller, condition, page, pageSize);
        	return false;
        }
    },
  reconfigure: function(store, columns){
    	//改写reconfigure方法
    	var d = this.headerCt;
    	if (this.columns.length <= 1 && columns) {//this.columns.length > 1表示grid的columns已存在，没必要remove再add
    		if(Ext.isIE){//ie下，format出现NaN-NaN-NaN,暂时作string处理
    			Ext.each(columns, function(c){
    				if(c.xtype == 'datecolumn'){
    					c.xtype = "";
    					c.format = "";
    				}
    			});
    		}
			d.suspendLayout = true;
			d.removeAll();
			d.add(columns);
		}
		if (store) {
			if(Ext.isIE){//ie下，format出现NaN-NaN-NaN
				Ext.each(store.fields, function(f){
					if(f.type == 'date'){
						f.type = "string";
						f.format = "";
					}
				});
			}
			this.bindStore(store);
		} else {
			this.getView().refresh();
		}
		if (columns) {
			d.suspendLayout = false;
			this.forceComponentLayout();
		}
		this.fireEvent("reconfigure", this);
    }
});