[TouchXML] Value of contents within CXMLElement tag

[Matthijn]

Hello,

I have an application where I use TouchXML in to load an XML file. So I have it like working 'so so'.

First the entire document is loaded and through xpath every item is loaded. (An item has this structure like)

<items>
   <item>
      <title>theTitle</title>
      <desc>Description</desc>
   </item> 
   <item>
      <title>theTitle2</title>
      <desc>Description2</desc>
   </item> 
</items>

If I NSLog a single element, I get an NSXMLElement with the folowing values:

<CXMLElement 0x114f160 [0x117b920] item <item>
<title>theTitle2</title>
<desc>Description</desc>
</item>>

I thought, now I can do the xpath query on that element instead of the entire document, and that way get a title, but that does not seem to be possible?

If I xpath on the element containing the item with '//title' i get all titles of every item, not just the one i'm executing the xpath on.

My code (somewhat)

	NSError *anError = NULL;
	CXMLDocument *xml = [[CXMLDocument alloc] initWithContentsOfURL:[NSURL URLWithString:@"http://www.theurl.com/news.rss"] options:0 error:&anError];
	self.contentArray = [xml nodesForXPath:@"//item" error:nil];

//self.contentArray contains now every item
//The loop
for(CXMLElement *element in self.contentArray) {
NSLog(@"Element: %@", element); //Which contains the above quote

//Here i try to get the title value now with the xpath on 'element' instead of the intire document (is this the correct way to do this?)
	CXMLNode *title = [element nodesForXPath:@"//title" error:nil];
//Now if I NSLog the title object, it seams to contain every title of every item, though it should contain only this one of the current item, or am i Wrong?
}

Hope someone can help me out, I'm trying to get this right for quite some time.

[muallin]

According to this site, you are using the wrong syntax, as // starts looking from where you are onwards the end of the document.

The correct syntax should be @".item

Hope it helps

Originally Posted by Matthijn

Hello,

I have an application where I use TouchXML in to load an XML file. So I have it like working 'so so'.

First the entire document is loaded and through xpath every item is loaded. (An item has this structure like)

<items>
   <item>
      <title>theTitle</title>
      <desc>Description</desc>
   </item> 
   <item>
      <title>theTitle2</title>
      <desc>Description2</desc>
   </item> 
</items>

If I NSLog a single element, I get an NSXMLElement with the folowing values:



I thought, now I can do the xpath query on that element instead of the entire document, and that way get a title, but that does not seem to be possible?

If I xpath on the element containing the item with '//title' i get all titles of every item, not just the one i'm executing the xpath on.

My code (somewhat)

	NSError *anError = NULL;
	CXMLDocument *xml = [[CXMLDocument alloc] initWithContentsOfURL:[NSURL URLWithString:@"http://www.theurl.com/news.rss"] options:0 error:&anError];
	self.contentArray = [xml nodesForXPath:@"//item" error:nil];

//self.contentArray contains now every item
//The loop
for(CXMLElement *element in self.contentArray) {
NSLog(@"Element: %@", element); //Which contains the above quote

//Here i try to get the title value now with the xpath on 'element' instead of the intire document (is this the correct way to do this?)
	CXMLNode *title = [element nodesForXPath:@"//title" error:nil];
//Now if I NSLog the title object, it seams to contain every title of every item, though it should contain only this one of the current item, or am i Wrong?
}

Hope someone can help me out, I'm trying to get this right for quite some time.