Hi.
I'm finally getting around to converting my old procedural code to
Prototype'd class based code. But I'm having an issue with resolving
"this".
Old code (heavily trimmed) ...
var o_Form = $('formID');
o_Form.request({
b_Process = false,
onSuccess : function() {
this.b_Process = true;
}
onComplete : function() {
doStuffA(); // Must be done before any successfull work.
if (this.b_Process) {
doStuffB(); // Must be done after doStuffA.
}
},
});
function doStuffA(){}
function doStuffB(){}
So, "this" in this instance represents the request object.
This code is in a standard.js file. There are then specific.js files
which provided additional functionality.
base_form_handler.js
specific_form_handler.js (relies on things in base_form_handler.js)
Now, in my new code, o_Form is property of a class and the old code is
now in a method called formSubmit (handled via an observe in the
initialize code [snipped]).
var class_AjaxFormHandler = Class.create({
initialize : function(s_Form) {
this.o_Form = $(s_Form);
// Attach events next, etc.
},
formSubmit : function() {
this.o_Form.request({
b_Process = false,
onSuccess : function() {
this.b_Process = true; // OK as b_Process is part of the request object.
}
onComplete : function() {
this.doStuffA(); // Not OK as doStuffA is part of the
request.parent.parent/request.owner.owner idea.
if (this.b_Process) { // OK
this.doStuffB(); // Not OK
}
}
});
doStuffA : function() {},
doStuffB : funciton() {}
}
});
This code is extended into a specific form...
var class_FleetAxleConfiguration = Class.create(class_AjaxFormHandler, {
initialize : function($super) {
$super.initialize('axleConfigs');
}
});
o_class_FleetAxleConfiguration = new class_FleetAxleConfiguration();
The problem I'm having is how do I define which "this" is which? I'm
coming from PHP to JS, so I'm not really sure about this at all.
Effectively, "this".o_Form.request.parent.parent == "this" in my head
and that is what I want to use, but I don't know if parent or owner is
available to me?
Can anyone point me in the right direction?
Regards,
Richard Quadling.
--
-----
Richard Quadling
Zend Certified Engineer : http://zend.com/zce.php?c=ZEND002498&r=213474731
"Standing on the shoulders of some very clever giants!"
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