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(
  19                 title = document.name,
  20                 text = document.text,
  21                 author = author,
  22                 comment = comment,
  23                 parent = parent)
  24
  25     def delete(self, name, author, comment):
  26         self.vstorage.delete_page(name, author, comment)
  27
  28     def all(self):
  29         return list(self.vstorage.all_pages())
  30
  31     def history(self, title):
  32         return list(self.vstorage.page_history(title))
  33
  34     def _info(self, name):
  35         return self.vstorage.page_meta(name)
  36
  37
  38 class Document(object):
  39     META_REGEX = re.compile(r'\s*<!--\s(.*?)-->', re.DOTALL | re.MULTILINE)
  40
  41     def __init__(self, storage, **kwargs):
  42         self.storage = storage
  43         for attr, value in kwargs.iteritems():
  44             setattr(self, attr, value)
  45
  46     def revision(self):
  47         try:
  48             return self.storage._info(self.name)[0]
  49         except DocumentNotFound:
  50             return - 1
  51
  52     @property
  53     def plain_text(self):
  54         return re.sub(self.META_REGEX, '', self.text, 1)
  55
  56     def meta(self):
  57         result = {}
  58
  59         m = re.match(self.META_REGEX, self.text)
  60         if m:
  61             for line in m.group(1).split('\n'):
  62                 try:
  63                     k, v = line.split(':', 1)
  64                     result[k.strip()] = v.strip()
  65                 except ValueError:
  66                     continue
  67
  68         return result
  69
  70 def getstorage():
  71     return DocumentStorage(settings.REPOSITORY_PATH)