def ProcessIndexNode(self, node):
"""Processes XML <datastore-index> nodes into Index objects.
The following information is parsed out:
kind: specifies the kind of entities to index.
ancestor: true if the index supports queries that filter by
ancestor-key to constraint results to a single entity group.
property: represents the entity properties to index, with a name
and direction attribute.
Args:
node: <datastore-index> XML node in datastore-indexes.xml.
"""
if node.tag != 'datastore-index':
self.errors.append('Unrecognized node: <%s>' % node.tag)
return
index = Index()
index.kind = node.attrib.get('kind', '')
if not index.kind:
self.errors.append(MISSING_KIND)
ancestor = node.attrib.get('ancestor', 'false')
index.ancestor = _BooleanAttribute(ancestor)
if index.ancestor is None:
self.errors.append(
'Value for ancestor should be true or false, not "%s"' %
ancestor)
properties = []
property_nodes = [n for n in node.getchildren() if n.tag == 'property']
for property_node in property_nodes:
name = property_node.attrib.get('name', '')
if not name:
self.errors.append(NAME_MISSING % index.kind)
continue
direction = property_node.attrib.get('direction', 'asc')
if direction not in ('asc', 'desc'):
self.errors.append(BAD_DIRECTION % direction)
continue
properties.append(Property(name=name, direction=direction))
index.properties = properties
self.indexes.append(index)
def ProcessIndexNode(self, node):
"""Processes XML <datastore-index> nodes into Index objects.
The following information is parsed out:
kind: specifies the kind of entities to index.
ancestor: true if the index supports queries that filter by
ancestor-key to constraint results to a single entity group.
property: represents the entity properties to index, with a name
and direction attribute.
Args:
node: <datastore-index> XML node in datastore-indexes.xml.
"""
if node.tag != 'datastore-index':
self.errors.append('Unrecognized node: <%s>' % node.tag)
return
index = Index()
index.kind = node.attrib.get('kind', '')
if not index.kind:
self.errors.append(MISSING_KIND)
ancestor = node.attrib.get('ancestor', 'false')
index.ancestor = _BooleanAttribute(ancestor)
if index.ancestor is None:
self.errors.append(
'Value for ancestor should be true or false, not "%s"' % ancestor)
properties = []
property_nodes = [n for n in node.getchildren() if n.tag == 'property']
for property_node in property_nodes:
name = property_node.attrib.get('name', '')
if not name:
self.errors.append(NAME_MISSING % index.kind)
continue
direction = property_node.attrib.get('direction', 'asc')
if direction not in ('asc', 'desc'):
self.errors.append(BAD_DIRECTION % direction)
continue
properties.append(Property(name=name, direction=direction))
index.properties = properties
self.indexes.append(index)