- def add_attribute(self, elem, name, value):
- """
- Add attribute to specified etree element
- """
- opt = etree.SubElement(elem, name)
- opt.text = value
-
- def add_element(self, name, attrs={}, parent=None, text=""):
- """
- Generic wrapper around etree.SubElement(). Adds an element to
- specified parent node. Adds element to root node is parent is
- not specified.
- """
- if parent == None:
- parent = self.xml
- element = etree.SubElement(parent, name)
- if text:
- element.text = text
- if isinstance(attrs, dict):
- for attr in attrs:
- element.set(attr, attrs[attr])
- return element
-
- def remove_attribute(self, elem, name, value):
- """
- Removes an attribute from an element
- """
- if elem is not None:
- opts = elem.iterfind(name)
- if opts is not None:
- for opt in opts:
- if opt.text == value:
- elem.remove(opt)
-
- def remove_element(self, element_name, root_node = None):
- """
- Removes all occurences of an element from the tree. Start at
- specified root_node if specified, otherwise start at tree's root.
- """
- if not root_node:
- root_node = self.xml
-
- if not element_name.startswith('//'):
- element_name = '//' + element_name
-
- elements = root_node.xpath('%s ' % element_name, namespaces=self.namespaces)
- for element in elements:
- parent = element.getparent()
- parent.remove(element)
-
- def get_element_attributes(self, elem=None, depth=0):
- if elem == None:
- elem = self.root_node
- attrs = dict(elem.attrib)
- attrs['text'] = str(elem.text).strip()
- if isinstance(depth, int) and depth > 0:
- for child_elem in list(elem):
- key = str(child_elem.tag)
- if key not in attrs:
- attrs[key] = [self.get_element_attributes(child_elem, depth-1)]
- else:
- attrs[key].append(self.get_element_attributes(child_elem, depth-1))
- else:
- attrs['child_nodes'] = list(elem)
- return attrs
-
- def find(self, element_type, filter={}, depth=0):
- elements = [self.get_element_attributes(element, depth=depth) for element in \
- self.find_elements(element_type, filter)]