* Improved document layout in Firefox.
[redakcja.git] / apps / wiki / models.py
1 import re
2 import vstorage
3 from vstorage import DocumentNotFound
4 from wiki import settings
5
6 class DocumentStorage(object):
7     def __init__(self, path):
8         self.vstorage = vstorage.VersionedStorage(path)
9
10     def get(self, name, revision = None):
11         if revision is None:
12             text = self.vstorage.page_text(name)
13         else:
14             text = self.vstorage.revision_text(name, revision)
15         return Document(self, name = name, text = text)
16
17     def put(self, document, author, comment, parent):
18         self.vstorage.save_text(document.name, document.text, author, comment, parent)
19
20     def delete(self, name, author, comment):
21         self.vstorage.delete_page(name, author, comment)
22
23     def all(self):
24         return list(self.vstorage.all_pages())
25     
26     def history(self, title):
27         return list(self.vstorage.page_history(title))
28
29     def _info(self, name):
30         return self.vstorage.page_meta(name)
31
32
33 class Document(object):
34     META_REGEX = re.compile(r'\s*<!--\s(.*?)-->', re.DOTALL | re.MULTILINE)
35
36     def __init__(self, storage, **kwargs):
37         self.storage = storage
38         for attr, value in kwargs.iteritems():
39             setattr(self, attr, value)
40
41     def revision(self):
42         try:
43             return self.storage._info(self.name)[0]
44         except DocumentNotFound:
45             return - 1
46
47     @property
48     def plain_text(self):
49         return re.sub(self.META_REGEX, '', self.text, 1)
50
51     def meta(self):
52         result = {}
53
54         m = re.match(self.META_REGEX, self.text)
55         if m:
56             for line in m.group(1).split('\n'):
57                 try:
58                     k, v = line.split(':', 1)
59                     result[k.strip()] = v.strip()
60                 except ValueError:
61                     continue
62
63         return result
64
65 # Every time somebody says "let's have a global variable", God kills a kitten.
66 storage = DocumentStorage(settings.REPOSITORY_PATH)