Ruby

Get XML Attribute Value by Path

See more XML Examples

Demonstrates how to get an attribute value by path. Ruby

require 'chilkat'

success = false

# The XML used in this example contains the following:
# This example will get the value of the "spay-neuter" attribute for each pig.

# <pig-rescue>
#   <herd name="Cathy">
# 	<species name="pot belly pig">
# 	    <animal>
# 	        <name>Molly II</name>
# 	        <birth>February, 1998</birth>
# 			<in-date>January, 2000</in-date>
# 			<from>Middle Ave.</from>
# 			<gender spay-neuter="yes">F</gender>
# 			<info>Molly came from a place where an old, ill man had too many animals.
# 	              	The animals were seldom fed and rats would eat the newborn piglets.
# 	             	 When Molly was found at one week old, she was the only piglet of 
# 	              	her siblings who did not get stepped on by a cow. She is a sweet, 
# 	              	friendly pig who likes to hang out on Cathy's porch on the lounge 
# 	              	pad.
# 			</info>
# 		</animal>
# 	    <animal>
# 			<name>Nigel</name>
# 			<birth>June, 1991</birth>
# 			<in-date>August, 1991</in-date>
# 			<from>Breeder</from>
# 			<gender spay-neuter="no">M</gender>
# 			<info>
# 			 	Nigel was the first pig and the reason for the rescue in the
# 			 	first place. He is 13 now and doing well, but takes a number 
# 				of medications, as you can see below.
# 			</info>
# 		</animal>		
# 	</species>
#   </herd>
# </pig-rescue>

xml = Chilkat::CkXml.new()
success = xml.LoadXmlFile("qa_data/xml/twoPigs.xml")

# Use the ChilkatPath method to return the value of a particular attribute at a given path.
# A path ending with "(attributeName)" will return the value for the given attribute.
path = "herd|species|animal[0]|gender|(spay-neuter)"
attrValue = xml.chilkatPath(path)
print "1st pig spay-neuter: " + attrValue + "\n";

path = "herd|species|animal[1]|gender|(spay-neuter)"
attrValue = xml.chilkatPath(path)
print "2nd pig spay-neuter: " + attrValue + "\n";

# We could also do it like this:
path = "herd|species|animal[i]|gender|(spay-neuter)"
i = 0
while i < xml.NumChildrenAt("herd|species")
    xml.put_I(i)
    print "spay-neuter for pig number " + (i + 1).to_s() + ": " + xml.chilkatPath(path) + "\n";
    i = i + 1
end