Question

I want to run a transaction inside a for loop. My code is :-

 for(var i=0;i<len;i++){
      // some code

      alert('before transaction');

      var db = window.openDatabase("Database", "1.0", "Pin Point", 200000);
      db.transaction(fetchSubList, errorLists);  

      alert('after transaction');
  }


 function fetchSubList(tx) {  
    tx.executeSql('some QUERY', [], fetchSubListSuccess, errorLists);
  }


function fetchSubListSuccess(tx, results) {
  alert("fetchSubListSuccess()...");

  // some code
}

But the problem is that after the alert (before transaction) i directly get alert (after transaction) and only when the for loop ends then the transaction start….

I followed the this link to solve but still i’m not able to figure it out….

Answer 1

It is not possible to do it… We need to refactor the code so that code looks like this :-

    db.transaction(function(tx) 
    {

      // some value
      var loop_limit = 10

      for(var i=0; i<loop_limit;i++ ){ // ITERATE HERE
        tx.executeSql(Statement, [],Sucess, error);
      }

    });