Source Code for Module amplee.comparer

 1  # -*- coding: utf-8 -*- 
 2  from datetime import timedelta 
 3  from amplee.utils import parse_isodate 
 4   
 5  import amara 
 6   
 7  __all__ = ['app_edited_comparer', 'app_updated_comparer'] 
 8   
 9  _zero_delta = timedelta(0) 
10   
11 -def app_edited_comparer(m0, m1): 
12      if hasattr(m0, 'atom'): 
13          m0 = m0.atom.entry 
14      e0 = m0.xml_child_elements.get('edited') 
15      if not e0: 
16          return 1 
17       
18      if hasattr(m1, 'atom'): 
19          m1 = m1.atom.entry 
20      e1 = m1.xml_child_elements.get('edited') 
21      if not e1: 
22          return -1 
23           
24      d0 = parse_isodate(str(e0)) 
25      d1 = parse_isodate(str(e1)) 
26   
27      delta = d1 - d0 
28       
29      if delta == _zero_delta: 
30          return 0 
31      if delta.days < 0: 
32          return -1 
33      if delta != _zero_delta: 
34          return 1 
35   
36 -def app_updated_comparer(m0, m1): 
37      if hasattr(m0, 'atom'): 
38          m0 = m0.atom.entry 
39      e0 = m0.xml_child_elements.get('updated') 
40      if not e0: 
41          return 1 
42       
43      if hasattr(m1, 'atom'): 
44          m1 = m1.atom.entry 
45      e1 = m1.xml_child_elements.get('updated') 
46      if not e1: 
47          return -1 
48       
49      d0 = parse_isodate(str(e0)) 
50      d1 = parse_isodate(str(e1)) 
51   
52      delta = d1 - d0 
53       
54      if delta == _zero_delta: 
55          return 0 
56      if delta.days < 0: 
57          return -1 
58      if delta != _zero_delta: 
59          return 1 
60