如何從數據庫中獲取

Question

我controller.js數據一起使用的角度圖表的離子如下：

.controller('dashboardCtrl', function($scope,TestMethod,$cordovaSQLite) { 
     var dis_stime = []; 
     var dis_steps = []; 
     $scope.select = function() { 
     console.log("check1"); 
     var lastSynced = localStorage.getItem('lastSynced'); 
     if (lastSynced != undefined) { 
       console.log("check2"); 
     // alert("lastSynced time is "+lastSynced); 
     // alert("query written"); 
      try { 
       db = $cordovaSQLite.openDB({name:"health.db",location:'default'}); 
       // alert("inside create"); 
       } catch (error) { 
        alert(error); 
       } 
      lastSynced = lastSynced * 1000000; 
      startTime = lastSynced - (86400 * 1000000000); 
      for (var i = 1; i < (PERIOD +1); i++) { 
       $cordovaSQLite.execute(db,"SELECT SUM(stepcount) AS total FROM activity WHERE startTime BETWEEN ? AND ?", [startTime,lastSynced]) 
        .then(function (resultSet) 
        { 
         dis_stime[i] = lastSynced; 
         dis_steps[i] = resultSet.rows.item(0).total; 
         alert("total is " + resultSet.rows.item(0).total); 
        // alert("Total is : " +resultSet.rows.item(0).total); 
        // alert("total entries" + resultSet.rows.length); 
        }, function(error) { 
         alert('SELECT error: ' + error.message); 
        }); 
        lastSynced = startTime; 
        startTime = startTime - (86400 * 1000000000); 
        } 
       } 
      else 
      { 
       alert("Please sync the device to see the data"); 
      } 
      alert("steps: "+dis_steps+" times: "+dis_stime); 
      $scope.labels = dis_stime; 
      $scope.series = ['steps']; 
      $scope.data = dis_steps; 
      } 
    }) 

我從sqlite的插件獲取數據，然後我要顯示它的圖形。

問題是，調用select函數時圖不會加載。

在哪裏以及如何調用select函數以便在打開頁面時加載數據？

Answer 1

您的控制器注入$ cordovaSQLite服務：

.controller('profile',['$scope','http','insert','$cordovaSQLite', 
      function($scope,$http,insert,$cordovaSQLite){ 
     ... 
    }]);