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1 from google.appengine.ext import db |
1 from google.appengine.ext import db |
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2 |
2 import string |
3 import string |
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4 import soc.models.linkable |
3 |
5 |
4 class Tag(db.Model): |
6 class Tag(db.Model): |
5 "Google AppEngine model for store of tags." |
7 "Google AppEngine model for store of tags." |
6 |
8 |
7 tag = db.StringProperty(required=True) |
9 tag = db.StringProperty(required=True) |
16 tagged_count = db.IntegerProperty(default=0) |
18 tagged_count = db.IntegerProperty(default=0) |
17 "The number of entities in tagged." |
19 "The number of entities in tagged." |
18 |
20 |
19 auto_delete = db.BooleanProperty(required=True, default=False) |
21 auto_delete = db.BooleanProperty(required=True, default=False) |
20 "If true, a tag instance should be deleted when tagged_count reaches zero." |
22 "If true, a tag instance should be deleted when tagged_count reaches zero." |
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23 |
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24 scope = db.ReferenceProperty(reference_class=soc.models.linkable.Linkable, |
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25 required=False, |
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26 collection_name='task_type_tags') |
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27 "Each tag is scoped under some linkable model." |
21 |
28 |
22 @classmethod |
29 @classmethod |
23 def __key_name(cls, tag_name): |
30 def __key_name(cls, tag_name): |
24 return cls.__name__ + '_' + tag_name |
31 return cls.__name__ + '_' + tag_name |
25 |
32 |