Source Code for Module advene.model.cam.annotation

 1  from advene.model.cam.consts import CAM_TYPE, CAMSYS_TYPE 
 2  from advene.model.cam.element import CamElementMixin 
 3  from advene.model.cam.exceptions import SemanticError 
 4  from advene.model.core.annotation import Annotation as CoreAnnotation 
 5  from advene.model.core.element import TAG 
 6   
 7 -class Annotation(CoreAnnotation, CamElementMixin): 
 8   
 9 -    def set_meta(self, key, value, val_is_idref=False): 
10          if key == CAM_TYPE: 
11              advene_type = getattr(value, "ADVENE_TYPE", None) 
12              if advene_type: 
13                  if advene_type is not TAG \ 
14                  or value.get_meta(CAMSYS_TYPE, None) != "annotation-type": 
15                      raise SemanticError("not an annotation type") 
16              else: 
17                  if not val_is_idref: 
18                      raise SemanticError("not an annotation type") 
19   
20              old_type = self.get_meta_id(key, None) 
21              owner = self._owner 
22              if old_type: 
23                  old_type = owner.get(old_type, old_type) # get element if we can 
24                  owner._dissociate_tag_nowarn(self, old_type) 
25              owner._associate_tag_nowarn(self, value) 
26   
27          return super(Annotation, self).set_meta(key, value, val_is_idref) 
28   
29 -    def del_meta(self, key): 
30          if key == CAM_TYPE: 
31              # TODO raise a user-warning, this is not good practice 
32              old_type = self.get_meta(key, None) 
33              if old_type: 
34                  self._owner._dissociate_tag_nowarn(self, old_type) 
35          return super(Annotation, self).del_meta(key) 
36   
37  Annotation.make_metadata_property(CAM_TYPE, "type", default=None, doc=""" 
38  The type of this annotation, created with Package.create_annotation_type(). May be None if undefined. 
39  """) 
40