old_contents: from artgraph.node import NodeTypes
  from artgraph.plugins import Plugin
  
  class InfoboxPlugin(Plugin):
      def __init__(self, node):
          self._node = node
      
      @staticmethod
      def get_target_node_type():
          return NodeTypes.ARTIST
          
      def get_nodes(self):
          from artgraph.node import Node, NodeTypes
          from artgraph.relationship import AssociatedActRelationship
          
          relationships = []
          wikicode = self.get_wikicode(self._node.get_dbtitle())
          
          if wikicode:
              templates = wikicode.filter_templates()
  
              for t in templates:
                  if t.name.matches('Infobox musical artist'):
                      # Fill in current node info
                      if t.has('birth_name'):
                          name = str(t.get('birth_name').value)
                      
                          db = self.get_artistgraph_connection()
                          cursor = db.cursor()
                          cursor.execute("UPDATE artist SET name = %s WHERE artistID = %s", (name, self._node.get_id()))
                          db.commit()
                          db.close()
                      
                      associated_acts = t.get('associated_acts')
                  
                      for w in associated_acts.value.filter_wikilinks():
                          relationships.append(AssociatedActRelationship(self._node, Node(str(w.title), NodeTypes.ARTIST)))
                  
          return relationships
          
new_contents: from artgraph.node import NodeTypes
  from artgraph.plugins import Plugin
  
  class InfoboxPlugin(Plugin):
      def __init__(self, node):
          self._node = node
      
      @staticmethod
      def get_target_node_type():
          return NodeTypes.ARTIST
          
      def get_nodes(self):
          from artgraph.node import Node, NodeTypes
          from artgraph.relationship import AssociatedActRelationship
          
          relationships = []
          wikicode = self.get_wikicode(self._node.get_dbtitle())
          
          if wikicode:
              templates = wikicode.filter_templates()
  
              for t in templates:
                  if t.name.matches('Infobox musical artist'):
                      # Fill in current node info
                      if t.has('birth_name'):
                          name = str(t.get('birth_name').value)
                      
                          db = self.get_artistgraph_connection()
                          cursor = db.cursor()
                          cursor.execute("UPDATE artist SET name = %s WHERE artistID = %s", (name, self._node.get_id()))
                          db.commit()
                          db.close()
                      
                      if not t.has('associated_acts'):
                          continue
                      
                      associated_acts = t.get('associated_acts')
                  
                      for w in associated_acts.value.filter_wikilinks():
                          relationships.append(AssociatedActRelationship(self._node, Node(str(w.title), NodeTypes.ARTIST)))
                  
          return relationships
          
subject: Check if there are associated acts before querying for them