Source Code for Module couchdbkit.ext.django.schema

 1  # -*- coding: utf-8 -*- 
 2  # 
 3  # Copyright (c) 2008-2009 Benoit Chesneau <benoitc@e-engura.com>  
 4  # 
 5  # Permission to use, copy, modify, and distribute this software for any 
 6  # purpose with or without fee is hereby granted, provided that the above 
 7  # copyright notice and this permission notice appear in all copies. 
 8  # 
 9  # THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 
10  # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 
11  # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 
12  # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 
13  # WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 
14  # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 
15  # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 
16   
17  """ Wrapper of couchdbkit Document and Properties for django. It also  
18  add possibility to a document to register itself in CouchdbkitHandler 
19  """ 
20   
21  import sys 
22   
23  from couchdbkit import schema 
24  from couchdbkit.ext.django.loading import get_schema, register_schema 
25   
26  __all__ = ['Property', 'StringProperty', 'IntegerProperty',  
27              'DecimalProperty', 'BooleanProperty', 'FloatProperty',  
28              'DateTimeProperty', 'DateProperty', 'TimeProperty',  
29              'dict_to_json', 'list_to_json', 'value_to_json',  
30              'value_to_python', 'dict_to_python', 'list_to_python',  
31              'convert_property', 'DocumentSchema', 'Document',  
32              'SchemaProperty', 'ListProperty',  
33              'DictProperty', 'StringListProperty'] 
34   
35 -class DocumentMeta(schema.SchemaProperties): 
36 -    def __new__(cls, name, bases, attrs): 
37          super_new = super(DocumentMeta, cls).__new__ 
38          parents = [b for b in bases if isinstance(b, DocumentMeta)] 
39          if not parents: 
40              return super_new(cls, name, bases, attrs) 
41               
42          new_class = super_new(cls, name, bases, attrs) 
43          document_module = sys.modules[new_class.__module__] 
44          app_label = document_module.__name__.split('.')[-2] 
45          register_schema(app_label, new_class) 
46           
47          return get_schema(app_label, name) 
48   
49 -class Document(schema.Document): 
50      """ Document object for django extension """ 
51      __metaclass__ = DocumentMeta 
52       
53      get_id = property(lambda self: self['_id']) 
54      get_rev = property(lambda self: self['_rev']) 
55       
56       
57  DocumentSchema = schema.DocumentSchema     
58   
59  #  properties 
60  Property = schema.Property 
61  StringProperty = schema.StringProperty 
62  IntegerProperty = schema.IntegerProperty 
63  DecimalProperty = schema.DecimalProperty 
64  BooleanProperty = schema.BooleanProperty 
65  FloatProperty = schema.FloatProperty 
66  DateTimeProperty = schema.DateTimeProperty 
67  DateProperty = schema.DateProperty 
68  TimeProperty = schema.TimeProperty 
69  SchemaProperty = schema.SchemaProperty 
70  ListProperty = schema.ListProperty 
71  DictProperty = schema.DictProperty 
72  StringListProperty = schema.StringListProperty 
73   
74   
75  # some utilities 
76  dict_to_json = schema.dict_to_json 
77  list_to_json = schema.list_to_json 
78  value_to_json = schema.value_to_json 
79  value_to_python = schema.value_to_python 
80  dict_to_python = schema.dict_to_python 
81  list_to_python = schema.list_to_python 
82  convert_property = schema.convert_property 
83