I need to looping through the Json data store and gather all the values. Finally, it should show the total amount of all price in alert window. I do not know how to looping through the Json data stoe, and I am interested if there's a quicker or easier way to do this. My idea is:
var myStore = new Ext.data.Store({
id: 'ID_Store',
proxy: new Ext.data.HttpProxy({
url: 'get.php',
method: 'POST'
}),
baseParams: {
task: "LIST"
},
reader: new Ext.data.JsonReader({
root: 'results',
totalProperty: 'total',
id: 'id'
}, [{
name: 'IDbook',
type: 'int',
mapping: 'id_book'
}, {
name: 'price',
type: 'int',
mapping: 'price'
}])
});
var sum = 0;
myStore.load();
myStore.on('load', function () {
for (var i = 0; i < myStore.getTotalCount(); i++) {
sum = sum + myStore.price[i];
}
});
alert("total sum is:", sum);
JSON is:
{success:true}{total:5,results:[{"id_book":"1","price":"10},{"id_book":"2","price":"15"},{"id_book":"3","price":"5"},{"id_book":"4","price":"7"},{"id_book":"5","price":"30"}]}