Generate custom Backbone error on model.save success
I am trying to override Backbone.sync method for my model.
The server returns status : 200 OK and model fires success callback in all cases.
The server response is as follows
status: 200 OK
response : { statusCode: '0'; // 0 success, 1,2,3 errors ... }
I have overided the sync function to throw error callback the cases work fine and throw error callback
Although i am not able to pass any custom options to the error callback.
sync : function(method, model, options) {
var self = this, config = {};
var newError = function(method, success, error) {
return function(response, textStatus, jqXHR) {
if (response.statusCode === '0' && _.isFunction(success)) {
success(response, textStatus, jqXHR);
} else if (_.isFunction(error)) {
switch (response.statusCode) {
case '1':
//response.statusCode: '2'
//response.statusMessage: 'Servers error 1!”
textStatus = 'Servers error 1!';
break;
case '2':
//response.result: 'Server error 2'
//response.statusCode: '2'
textStatus = 'Servers error 1';
break;
}
error(response, jqXHR, textStatus ); //arguments fail maybe backbone overrides them before firing my error callback
}
};
};
config.success = newError(method, options.success, options.error);
// add API call configuration to the `options` object
options = _.extend(options, config);
return Backbone.Model.prototype.sync.call(this, method, model, options);
}
// the following error callback is invoked but the message is not passed to it
model.save(data,{
success : successCB,
error : function(args){
alert('error'); //works
//args.textStatus or something similar passed from above sync logic
}
})
I am aware that something is wrong at this line. error(response, jqXHR, textStatus );
Please let me know how to pass the textStatus or other options the error callback
Seems to be an issue with the order of parameters in your error function. The signature should be (jqXHR jqXHR, String textStatus, String errorThrown) .
The following gist helped common.js
From the above gist line numbers 106 to 128 solved the problem by adding the following lines to it
response.done(function(){
if(response.responseJSON.statusCode &&
response.responseJSON.statusCode === '0'){
response.done(deferred.resolve);
} else {
deferred.rejectWith(response, arguments);
}
});
Thanks for the reply, although changing the sequence of parameters did not help
链接地址: http://www.djcxy.com/p/67088.html上一篇: 无法覆盖Backbone保存成功处理程序