How to update/change the value stored in an XML record with AS3

Question

I have the following xml file........ joe bloggs 02 01 1981 2 Johns Street Trekville Timbuktoo CF67TH Male fred bloggs 03 02 1982 22 Johns Street Fredville Cardiff CF71TH Male I have loaded the XMLfile into my flash website and I'm able to filter by the email address and display corresponding data. Code below....var custXML:XMLList;var xmlCustLoader:URLLoader = new URLLoader();xmlCustLoader.load(new URLRequest("Customers.xml"));xmlCustLoader.addEventListener(Event.COMPLETE, custXMLLoaded);function custXMLLoaded(e:Event):void { xmlCustLoader.removeEventListener(Event.COMPLETE, custXMLLoaded); //load xml data into custXML object custXML = new XMLList(e.target.data); //run the parse function ParseCustomer(custXML);}function ParseCustomer(customerInput:XMLList):void { trace("XML Output"); trace("------------------------"); var custAtts:XMLList = customerInput.Email.(@address == entEmail); for each (var custEmail:XML in custAtts) { trace(custEmail); } //set variables to the filtered result entFName = customerInput.Email.(@address == entEmail).FName; entSurname = customerInput.Email.(@address == entEmail).Surname; entDay = customerInput.Email.(@address == entEmail).DayBirth; entMonth = customerInput.Email.(@address == entEmail).MonthBirth; entYear = customerInput.Email.(@address == entEmail).YearBirth; entHouse = customerInput.Email.(@address == entEmail).House; entAdd1 = customerInput.Email.(@address == entEmail).Address1; entAdd2 = customerInput.Email.(@address == entEmail).Address2; entCity = customerInput.Email.(@address == entEmail).City; entPCode = customerInput.Email.(@address == entEmail).PostCode; entGender = customerInput.Email.(@address == entEmail).Gender;} I now want to amend a record in this file (eg. change the from fred to say Paul and save the changes back to the Customers.xml. How do i do this?

kglad · Accepted Answer

all i want to do is edit the value from 0 to 1, in one specific seat, of a specific time, of a specific day, of a specific movie, of a specific room. I dont want to edit multiple items if thats what you mean? BUT i dont want to lose any data either.

The code i have used for updating is exactly the same as you have but i have the error above.

that's because you're not assigning movie name, time etc and i only showed how to solve the problem you asked originally.

you're now asking a different (but related) question. here's that solution:

var seat:int;

var chosenSeat:String;

b.addEventListener(MouseEvent.CLICK, seat1Click);

function seat1Click(event:MouseEvent):void{

seat = 1;

//set the chosenSeat to Seat1 the name of the tag in XML - this will be used to save

chosenSeat = "Seat1";

// instead of hard-coding these strings, they should be assigned using comboboxes or some thing else.

UpdateBooking(bookXML,chosenSeat,seat,"St Davids","300: Rise of an Empire","Tuesday","18:00");

}

function UpdateBooking(xml:XML,chosenSeat:String,seat:int,room_name:String,movie_title:String,day_name:String,showing_time:String):void {

xml.Room.(@name==room_name).Movie.(@title==movie_title).Day.(@name==day_name).Showing.(@time==showing_time)[chosenSeat] = seat;

}

kglad · Answer

you can use the xml methods (like appendChild) to edit your xml and use the filereference class to save the xml (assumming it's loaded locally). if it's loaded from a server you'll need a server-side script to write to the server.

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