angularjs表格ng-table使用备忘录

function orderData(data, params){
return params.sorting() ? $filter('orderBy')(data, params.orderBy()) : filteredData;
}

function sliceData(data, params){
return data.slice((params.page() - 1) * params.count(), params.page() * params.count())
}

function transformData(data,filter,params){
return sliceData( orderData( filterData(data,filter), params ), params);
}

var service = {
cachedData:[],
getData:function($defer, params, filter){
if(service.cachedData.length>0){
console.log("using cached data")
var filteredData = filterData(service.cachedData,filter);
var transformedData = sliceData(orderData(filteredData,params),params);
params.total(filteredData.length)
$defer.resolve(transformedData);
}
else{
console.log("fetching data")
$http.get("data.json").success(function(resp)
{
angular.copy(resp,service.cachedData)
params.total(resp.length)
var filteredData = $filter('filter')(resp, filter);
var transformedData = transformData(resp,filter,params)

$defer.resolve(transformedData);
});
}

}
};
return service;
});

json数据：

[{
      "hidden": 1,
      "launchImage": "2015_4_9_12_bb7e0a446ed74ae7ad0a3554a54183bc_1298477763",
      "name": "张三",
      "orgId": 1498031949070997504,
      "organizationId": "1498031949070997504"
    }, {
      "hidden": 1,
      "launchImage": "http://7s1rmc.com1.z0.glb.clouddn.com/2015_4_9_12_0ab5b02cf1df4ac49a7376b820816307_2127491219|39e202124ac90ec531009b0edbbbe0ba",
      "name": "李四",
      "orgId": 1498046360909250560,
      "organizationId": "1498046360909250560"
    }]