+ def __init__(self, *args, **kwargs):
+ super(PlStackTabularInline, self).__init__(*args, **kwargs)
+
+ # InlineModelAdmin as no get_fields() method, so in order to add
+ # the selflink field, we override __init__ to modify self.fields and
+ # self.readonly_fields.
+
+ self.setup_selflink()
+
+ def get_change_url(self, model, id):
+ """ Get the URL to a change form in the admin for this model """
+ reverse_path = "admin:%s_change" % (model._meta.db_table)
+ try:
+ url = reverse(reverse_path, args=(id,))
+ except NoReverseMatch:
+ return None
+
+ return url
+
+ def setup_selflink(self):
+ if hasattr(self, "selflink_fieldname"):
+ """ self.selflink_model can be defined to punch through a relation
+ to its target object. For example, in SliceNetworkInline, set
+ selflink_model = "network", and the URL will lead to the Network
+ object instead of trying to bring up a change view of the
+ SliceNetwork object.
+ """
+ self.selflink_model = getattr(self.model,self.selflink_fieldname).field.rel.to
+ else:
+ self.selflink_model = self.model
+
+ url = self.get_change_url(self.selflink_model, 0)
+
+ # We don't have an admin for this object, so don't create the
+ # selflink.
+ if (url == None):
+ return
+
+ # Since we need to add "selflink" to the field list, we need to create
+ # self.fields if it is None.
+ if (self.fields is None):
+ self.fields = []
+ for f in self.model._meta.fields:
+ if f.editable and f.name != "id":
+ self.fields.append(f.name)
+
+ self.fields = tuple(self.fields) + ("selflink", )
+
+ if self.readonly_fields is None:
+ self.readonly_fields = ()
+
+ self.readonly_fields = tuple(self.readonly_fields) + ("selflink", )
+
+ def selflink(self, obj):
+ if hasattr(self, "selflink_fieldname"):
+ obj = getattr(obj, self.selflink_fieldname)
+
+ if obj.id:
+ url = self.get_change_url(self.selflink_model, obj.id)
+ return "<a href='%s'>Details</a>" % str(url)
+ else:\r
+ return "Not present"\r
+
+ selflink.allow_tags = True
+ selflink.short_description = "Details"