1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
|
import os
from django.db import models
# Monkeypatching so that django-tagging can import python_2_unicode_compatible
import django.utils.encoding
import six
django.utils.encoding.python_2_unicode_compatible = six.python_2_unicode_compatible
django.utils.six = six
from tagging.models import Tag # noqa: E402
from graphite.events.compat import ModelTaggedItemManager # noqa: E402
if os.environ.get('READTHEDOCS'):
TagField = lambda *args, **kwargs: None
else:
from tagging.fields import TagField
class Event(models.Model):
when = models.DateTimeField()
what = models.CharField(max_length=255)
data = models.TextField(blank=True)
tags = TagField(default="")
def get_tags(self):
return Tag.objects.get_for_object(self)
def __str__(self):
return "%s: %s" % (self.when, self.what)
@staticmethod
def find_events(time_from=None, time_until=None, tags=None, set_operation=None):
if tags is not None:
if set_operation == 'union':
query = Event.tagged.with_any(tags)
elif set_operation == 'intersection':
query = Event.tagged.with_intersection(tags)
else:
query = Event.tagged.with_all(tags)
else:
query = Event.objects.all()
if time_from is not None:
query = query.filter(when__gte=time_from)
if time_until is not None:
query = query.filter(when__lte=time_until)
result = list(query.order_by("when"))
return result
def as_dict(self):
return dict(
when=self.when,
what=self.what,
data=self.data,
tags=self.tags.split(),
id=self.id,
)
# We use this rather than tagging.register() so that tags can be exposed
# in the admin UI
ModelTaggedItemManager().contribute_to_class(Event, 'tagged')
|
