Update element values using xml.dom.minidom
- by amnesia-55
Hello,
I have an XML structure which looks similar to:
<Store>
<foo>
<book>
<isbn>123456</isbn>
</book>
<title>XYZ</title>
<checkout>no</checkout>
</foo>
<bar>
<book>
<isbn>7890</isbn>
</book>
<title>XYZ2</title>
<checkout>yes</checkout>
</bar>
</Store>
Using xml.dom.minidom only (restrictions) i would like to
1)traverse through the XML file
2)Search/Get for particular element, depending on its parent
Example: checkout element for author1, isbn for author2
3)Change/Set that element's value
4)Write the new XML structure to a file
Can anyone help here?
Thank you!
UPDATE:
This is what i have done till now
import xml.dom.minidom
checkout = "yes"
def getLoneChild(node, tagname):
assert ((node is not None) and (tagname is not None))
elem = node.getElementsByTagName(tagname)
if ((elem is None) or (len(elem) != 1)):
return None
return elem
def getLoneLeaf(node, tagname):
assert ((node is not None) and (tagname is not None))
elem = node.getElementsByTagName(tagname)
if ((elem is None) or (len(elem) != 1)):
return None
leaf = elem[0].firstChild
if (leaf is None):
return None
return leaf.data
def setcheckout(node, tagname):
assert ((node is not None) and (tagname is not None))
child = getLoneChild(node, 'foo')
Check = getLoneLeaf(child[0],'checkout')
Check = tagname
return Check
doc = xml.dom.minidom.parse('test.xml')
root = doc.getElementsByTagName('Store')[0]
output = setcheckout(root, checkout)
tmp_config = '/tmp/tmp_config.xml'
fw = open(tmp_config, 'w')
fw.write(doc.toxml())
fw.close()
