class ConcreteEdge(edge_factory('ConcreteNode', concrete=False)):
"""
Test edge, adds just one field
"""
name = CharField(max_length=32, blank=True, null=True)
class Meta:
app_label = 'django_dag'
class TaskEdge(edge_factory(TaskNode, concrete=False)):
name = models.CharField(max_length=100, blank=True, null=True)
graph = models.ForeignKey('DiGraph',
null=True,
blank=True,
on_delete=models.CASCADE)
class Meta:
verbose_name_plural = 'Dependencies'
def save(self, *args, **kwargs):
super(TaskEdge, self).save()
self.graph = self.parent.graph
super(TaskEdge, self).save()
class SectionRelation(edge_factory(Section, concrete=False)):
"""Through class for parent/child relationships between sections"""
weight = models.IntegerField(default=0)
def __unicode__(self):
return u"%s is child of %s" % (self.child, self.parent)
class PlaceRelation(edge_factory(Place, concrete=False)):
class Meta:
unique_together = (("parent", "child"), )
class AnalysisEdge(edge_factory(AnalysisNode, concrete=False)):
pass