using TBXML and parse an attribute that there isn't all the time

[JJSaccolo]

I'm parsing an xml file using TBXML. my xml is like this:

<locations>
   <location>
      <id>1</id>
      <name>hello</name>
   </location>
   <location>
      ...
</locations>

all works fine, but there is a big problem: sometimes the xml can "skip" the "name" tag, so, for example, there is something like this:

...
</location>
<location>
   <id>43</id>
</location>
<location>
...

where is the problem? that using this code

TBXMLElement *location = [TBXML childElementNamed:@"location" parentElement:root];
while (location){
   TBXMLElement *id = [TBXML childElementNamed:@"id" parentElement:location];
   TBXMLElement *name = [TBXML childElementNamed:@"name" parentElement:location];
   ... //do something
   location = location -> nextSibling;
}

the app crashes reading the tag "name" because sometimes there isn't...

How can i solve it??

thanks!

[javadude]

Originally Posted by JJSaccolo

I'm parsing an xml file using TBXML. my xml is like this:

<locations>
   <location>
      <id>1</id>
      <name>hello</name>
   </location>
   <location>
      ...
</locations>

all works fine, but there is a big problem: sometimes the xml can "skip" the "name" tag, so, for example, there is something like this:

...
</location>
<location>
   <id>43</id>
</location>
<location>
...

where is the problem? that using this code

TBXMLElement *location = [TBXML childElementNamed:@"location" parentElement:root];
while (location){
   TBXMLElement *id = [TBXML childElementNamed:@"id" parentElement:location];
   TBXMLElement *name = [TBXML childElementNamed:@"name" parentElement:location];
   ... //do something
   location = location -> nextSibling;
}

the app crashes reading the tag "name" because sometimes there isn't...

How can i solve it??

thanks!

You can just check if your name object is nil (tested this myself, definitely doesn't crash) before using it. Also, "name" is an XML element and not an attribute. An attribute would be the lang in the following example: <name lang="EN">.