how to check the return status of the store 's sync In Extjs - extjs

Question

I use the the
store.sync({
success:function(){},
failure:function(){}
});
to sync with the server; when the server return {success:false} or {success:true};
how I check the json from the server in the store.sync.
I have knew that:success is called by The function to be called upon successful completion of the sync ,even if return {sucess :false} ,not only the {success:true};

Answer 1

You need to change the reader's successProperty to false in the store's proxy.
store.proxy.reader.successProperty = false;
or
var store = Ext.create('Ext.data.Store', {
(...)
proxy : {
type : 'ajax',
(...)
reader : {
successProperty : false,
(...)
}
}
});
and then you can use this:
store.sync({
callback : function (batch, options) {
var operations = batch.operations;
for (var x in operations) {
var operation = operations[x];
if (operation.request) {
console.log('operation.request ---> ', operation.request);
}
if (operation.response) {
console.log('operation.response ---> ', operation.response);
var object = Ext.decode(operation.response.responseText, false);
console.log('success --->', object.success);
}
}
}
});