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
|
# Warlock
Build self-validating python objects using JSON schemas.
1) Create your schema
>>> schema = {
'name': 'Country',
'properties': {
'name': {'type': 'string'},
'abbreviation': {'type': 'string'},
'population': {'type': 'integer'},
},
'additionalProperties': False,
}
2) Create a model
>>> import warlock
>>> Country = warlock.model_factory(schema)
3) Create an object using your model
>>> sweden = Country(name='Sweden', abbreviation='SE')
4) Let the object validate itself
>>> sweden.name = 5
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "warlock/core.py", line 53, in __setattr__
raise InvalidOperation(msg)
warlock.core.InvalidOperation: Unable to set 'name' to '5'
>>> sweden.overlord = 'Bears'
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "warlock/core.py", line 53, in __setattr__
raise InvalidOperation(msg)
warlock.core.InvalidOperation: Unable to set 'overlord' to 'Bears'
5) Generate a [JSON Patch document](http://tools.ietf.org/html/draft-ietf-appsawg-json-patch) to track changes
>>> sweden.population=9453000
>>> sweden.patch
'[{"path": "/population", "value": 9453000, "op": "add"}]'
|
