[flexcoders] Re: XMLFiltering by attributes and values
Ok, thanks, but dont think i explained my self very well
Basically, i have a properties list which stores a object with a name and a
value, which are both strings. name is the attribute name, so in ur example it
will be 'id' and the value will be '1'. so knowing that information i should be
able to filter the xml using them values.
var itemList : XMLList = items
item id='1' quantity='2' type='fruit'
item id='2' quantity='5' type='veg'
item id='3' quantity='6' type='veg'
item id='4' quantity='7' type='fruit'
/items;
var propertyList : ArrayCollection = new ArrayCollection();
propertyList.addItem({name:'type' , value:'fruit'});
var filterList : XMLList = itemList.item;
for each(var property : Object in propertyList)
{
filterList = filterList.(attribute(property.name) == property.value);
}
//Output of filterList
item id='1' quantity='2' type='fruit'
item id='4' quantity='7' type='fruit'
So thats the basic idea but always get that error, looking in the API it
suggests it is possible to filter like that. Well hope this gives a better idea
of what the problem is. Thank You
Stephen Chan
--- In flexcoders@yahoogroups.com, Preetham Hegde preethamheg...@... wrote:
what are name and value to _propertiesList ? Is it elements or attributes?
If it is element then accessing is correct, there is some other problem.
If it is attribute then should access like this
pr...@name or pr...@value
To understand difference between element and attribute here is a example
*public function callFunc():void{
var total2:Number = 0;
for each (var prop:XML in myXML.item)
{
total2 += pr...@quantity * prop.price;
}
Alert.show(total2.toString());
}
public var myXML:XML =
order
item id='1' quantity='2'
menuNameburger/menuName
price3.95/price
/item
item id='2' quantity='2'
menuNamefries/menuName
price1.45/price
/item
/order;*
On Mon, Aug 17, 2009 at 4:57 PM, fatmanchan2009 fatmanchan2...@...wrote:
Hello
Can anyone figure out this problem im currently having, and explain the
reasons and cause of this proplem.
I have an XML file of track data with a bunch of attributes
track
item uniqueTrackId=100 albumId=12 trackId=1 genreId=13
artistId=6584
...
/track
i use this code to execute the filtering on the data, the name is artistId
and the value is 6584, so the data should come back with all the artists
with artistId 6584.
var filterData : XMLList = _trackData.item;
for each (var prop : Object in _propertiesList)
{
filterData = filterData.(attribute(prop.name) == prop.value);
}
but i keep getting this exception, when its applyin the filter, so within
the for loop
TypeError: Error #1006: value is not a function.
So anyone that can figure what the problem is, would be a big help Thank
You
Stephen Chan
--
Regards,
Preetham Hegde
___
If you only have a hammer, you tend to see every problem as a nail.
[flexcoders] Re: XMLFiltering by attributes and values
I haven't looked at your code too much but what jumped out at me is this line...
filterData = filterData.(attribute(prop.name) == prop.value);
This will try to evaluate attribute as a function with parameter prop.name and
then compare that to prop.value returning a boolean. So, the upshot is that
Flex will try to evaluate filterData.true or filterData.false. I'm pretty sure
that won't work.
--- In flexcoders@yahoogroups.com, fatmanchan2009 fatmanchan2...@... wrote:
Hello
Can anyone figure out this problem im currently having, and explain the
reasons and cause of this proplem.
I have an XML file of track data with a bunch of attributes
track
item uniqueTrackId=100 albumId=12 trackId=1 genreId=13
artistId=6584
...
/track
i use this code to execute the filtering on the data, the name is artistId
and the value is 6584, so the data should come back with all the artists with
artistId 6584.
var filterData : XMLList = _trackData.item;
for each (var prop : Object in _propertiesList)
{
filterData = filterData.(attribute(prop.name) == prop.value);
}
but i keep getting this exception, when its applyin the filter, so within the
for loop
TypeError: Error #1006: value is not a function.
So anyone that can figure what the problem is, would be a big help Thank You
Stephen Chan
RE: [flexcoders] Re: XMLFiltering by attributes and values
This works well:
var _trackData:XML = track
item uniqueTrackId=100 albumId=12 trackId=1 genreId=13
artistId=6584/
item uniqueTrackId=101 albumId=13 trackId=2 genreId=14
artistId=6580/
item uniqueTrackId=102 albumId=14 trackId=3 genreId=15
artistId=6584/
item uniqueTrackId=103 albumId=15 trackId=4 genreId=16
artistId=6583/
/track;
function doXMLFilter(nodes:XML,att:String,val:String):XMLList{
// Returns all node elements with an attribute that equals
value.
return nodes.elements(*).(@[att.toString()] == val);
}
var _data:XMLList = doXMLFilter(_trackData,artistId,6584);
trace(_data.toXMLString());
- Keith
From: flexcoders@yahoogroups.com [mailto:flexcod...@yahoogroups.com] On
Behalf Of valdhor
Sent: Monday, August 17, 2009 11:15 AM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] Re: XMLFiltering by attributes and values
I haven't looked at your code too much but what jumped out at me is this
line...
filterData = filterData.(attribute(prop.name) == prop.value);
This will try to evaluate attribute as a function with parameter prop.name
and then compare that to prop.value returning a boolean. So, the upshot is
that Flex will try to evaluate filterData.true or filterData.false. I'm
pretty sure that won't work.
--- In flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com ,
fatmanchan2009 fatmanchan2...@... wrote:
Hello
Can anyone figure out this problem im currently having, and explain the
reasons and cause of this proplem.
I have an XML file of track data with a bunch of attributes
track
item uniqueTrackId=100 albumId=12 trackId=1 genreId=13
artistId=6584
...
/track
i use this code to execute the filtering on the data, the name is artistId
and the value is 6584, so the data should come back with all the artists
with artistId 6584.
var filterData : XMLList = _trackData.item;
for each (var prop : Object in _propertiesList)
{
filterData = filterData.(attribute(prop.name) == prop.value);
}
but i keep getting this exception, when its applyin the filter, so within
the for loop
TypeError: Error #1006: value is not a function.
So anyone that can figure what the problem is, would be a big help Thank
You
Stephen Chan
image001.jpgimage002.jpg
RE: [flexcoders] Re: XMLFiltering by attributes and values
That comment should read:
// Returns all node elements with the named attribute that equals value.
- Keith
From: flexcoders@yahoogroups.com [mailto:flexcod...@yahoogroups.com] On
Behalf Of Keith Reinfeld
Sent: Monday, August 17, 2009 1:15 PM
To: flexcoders@yahoogroups.com
Subject: RE: [flexcoders] Re: XMLFiltering by attributes and values
This works well:
var _trackData:XML = track
item uniqueTrackId=100 albumId=12 trackId=1 genreId=13
artistId=6584/
item uniqueTrackId=101 albumId=13 trackId=2 genreId=14
artistId=6580/
item uniqueTrackId=102 albumId=14 trackId=3 genreId=15
artistId=6584/
item uniqueTrackId=103 albumId=15 trackId=4 genreId=16
artistId=6583/
/track;
function doXMLFilter(nodes:XML,att:String,val:String):XMLList{
// Returns all node elements with an attribute that equals
value.
return nodes.elements(*).(@[att.toString()] == val);
}
var _data:XMLList = doXMLFilter(_trackData,artistId,6584);
trace(_data.toXMLString());
- Keith
From: flexcoders@yahoogroups.com [mailto:flexcod...@yahoogroups.com] On
Behalf Of valdhor
Sent: Monday, August 17, 2009 11:15 AM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] Re: XMLFiltering by attributes and values
I haven't looked at your code too much but what jumped out at me is this
line...
filterData = filterData.(attribute(prop.name) == prop.value);
This will try to evaluate attribute as a function with parameter prop.name
and then compare that to prop.value returning a boolean. So, the upshot is
that Flex will try to evaluate filterData.true or filterData.false. I'm
pretty sure that won't work.
--- In flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com ,
fatmanchan2009 fatmanchan2...@... wrote:
Hello
Can anyone figure out this problem im currently having, and explain the
reasons and cause of this proplem.
I have an XML file of track data with a bunch of attributes
track
item uniqueTrackId=100 albumId=12 trackId=1 genreId=13
artistId=6584
...
/track
i use this code to execute the filtering on the data, the name is artistId
and the value is 6584, so the data should come back with all the artists
with artistId 6584.
var filterData : XMLList = _trackData.item;
for each (var prop : Object in _propertiesList)
{
filterData = filterData.(attribute(prop.name) == prop.value);
}
but i keep getting this exception, when its applyin the filter, so within
the for loop
TypeError: Error #1006: value is not a function.
So anyone that can figure what the problem is, would be a big help Thank
You
Stephen Chan
image001.jpgimage002.jpg
