javascript - Update and remove operation on Jaydata -

i'm trying write simple crud functionality in jaydata, had written simple code update operation:

sampleclass.prototype.load = function(input1,callback) {   var param='it.name=="'+input1+'"';   this.data.items.filter(param).foreach(function(ii)     {       callback(ii);     });   this.data.items.savechanges(); }; 

so when call:

t.load('entry4',function(res){console.log(res.name)}) 

it works charm! if call update operation callback like:

t.load('entry4',function(res){res.name="entry5"}) 

it doesn't change in db. have seen begintransaction function in http://jaydata.org/examples/jaydatapro/todolist_complex, couldn't understand essence of it.

special gabor dolla

in order update value in jaydata:

• db has have primary-key inside it.
• change non-key attributes
• call asynchronous save() function after it.

solution question is: after changing object field's definition this:

name{ type:'string', **key:true**} 

you can query on change non-key attributes of them

t.load('entry4',function(res){res.lastname="entry5";res.save()});