floof/model/art.py

   1 #
   2 #   floof/floof/model/art.py
   3 #
   4 #   Copyright (c) 2009 Scribblr
   5 #
   6
   7 # from elixir import Entity, Field, Integer, Unicode
   8 from elixir import *
   9
  10 from pylons import config
  11
  12 from floof.lib.file_storage import get_path, save_file
  13
  14 from floof.lib.dbhelpers import find_or_create
  15
  16
  17
  18 class Art(Entity):
  19     title = Field(Unicode(120))
  20     original_filename = Field(Unicode(120))
  21     hash = Field(String)
  22
  23     uploaded_by = ManyToOne('User')
  24     tags = OneToMany('Tag')
  25
  26     # def __init__(self, **kwargs):
  27     #     # I wanted to check for the existence of the file, but...
  28     #     # for some reason this FieldStorage object always conditions as falsey.
  29     #     # self.hash = save_file("art", kwargs.pop('file'))
  30     #     super(Art, self).__init__(**kwargs)
  31     #     # this is what super is doing, pretty much.
  32     #     # for key, value in kwargs.items():
  33     #     #     setattr(self, key, value)
  34     # left for posterity.
  35
  36     def set_file(self, file):
  37         self.hash = save_file("art", file)
  38
  39     file = property(get_path, set_file)
  40
  41     def get_path(self):
  42         if self.hash:
  43             return get_path("art", self.hash)
  44
  45
  46     def add_tags(self, tags, user):
  47         for tag in tags.split():
  48             if len(tag) > 50:
  49                 raise "Long Tag!" # can we handle this more gracefully?
  50             # sqlite seems happy to store strings much longer than the supplied limit...
  51
  52             # elixir should really have its own find_or_create.
  53             tagtext = find_or_create(TagText, text=tag)
  54             tag     = find_or_create(Tag, art=self, tagger=user, tagtext=tagtext)
  55
  56
  57     def __unicode__(self):
  58         return self.get_path()
  59
  60
  61 class Tag(Entity):
  62     # look into how ondelete works.  It just sets a database property.
  63     art = ManyToOne('Art', ondelete='cascade')
  64     tagger = ManyToOne('User')
  65     tagtext = ManyToOne('TagText')
  66
  67     # this text setter is no longer useful since I changed the way Art#add_tags works
  68     # but I'll leave it in here just for several minutes nostalgia.
  69     # def set_text(self, text):
  70     #     self.tagtext = TagText.get_by(text=text)
  71     #     if not self.tagtext:
  72     #         self.tagtext = TagText(text=text)
  73     #
  74     # text = property(lambda self: self.tagtext.text, set_text)
  75
  76     def __unicode__(self):
  77         if not self.tagtext:
  78             return "(broken)"
  79         return unicode(self.tagtext)
  80
  81
  82 class TagText(Entity):
  83     text = Field(Unicode(50)) # gotta enforce this somehow
  84     tags = OneToMany('Tag')
  85
  86     def __unicode__(self):
  87         return self.text