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 import elixir
  10
  11 from pylons import config
  12
  13 from floof.lib.file_storage import get_path, save_file
  14 from floof.lib.dbhelpers import find_or_create, update_or_create
  15
  16 class Art(Entity):
  17     title = Field(Unicode(120))
  18     original_filename = Field(Unicode(120))
  19     hash = Field(String)
  20
  21     uploaded_by = ManyToOne('User')
  22     tags = OneToMany('Tag')
  23
  24     # def __init__(self, **kwargs):
  25     #     # I wanted to check for the existence of the file, but...
  26     #     # for some reason this FieldStorage object always conditions as falsey.
  27     #     # self.hash = save_file("art", kwargs.pop('file'))
  28     #     super(Art, self).__init__(**kwargs)
  29     #     # this is what super is doing, pretty much.
  30     #     # for key, value in kwargs.items():
  31     #     #     setattr(self, key, value)
  32     # left for posterity.
  33
  34     def set_file(self, file):
  35         self.hash = save_file("art", file)
  36
  37     file = property(get_path, set_file)
  38
  39     def get_path(self):
  40         if self.hash:
  41             return get_path("art", self.hash)
  42
  43
  44     def add_tags(self, tags, user):
  45         for text in tags.split():
  46             if text[0] == '-':
  47                 # Nega-tags
  48                 tagtext = TagText.get_by(text=text[1:])
  49                 if tagtext:
  50                     tag = Tag.get_by(art=self, tagger=user, tagtext=tagtext)
  51                     if tag:
  52                         elixir.session.delete(tag)
  53
  54             else:
  55                 if len(text) > 50:
  56                     raise "Long Tag!" # can we handle this more gracefully?
  57                 # sqlite seems happy to store strings much longer than the supplied limit...
  58
  59                 # elixir should really have its own find_or_create.
  60                 tagtext = find_or_create(TagText, text=text)
  61                 tag     = find_or_create(Tag, art=self, tagger=user, tagtext=tagtext)
  62
  63
  64
  65
  66     def rate(self, score, user):
  67         return update_or_create(Rating, {"rater":user, "art":self}, {"score":score})
  68
  69     def user_score(self, user):
  70         rating = Rating.get_by(rater=user, art=self)
  71         if rating:
  72             return rating.score
  73         return Rating.default
  74
  75     def __unicode__(self):
  76         return self.get_path()
  77
  78
  79 class Tag(Entity):
  80     # look into how ondelete works.  This just sets a database property.
  81     art = ManyToOne('Art', ondelete='cascade')
  82     tagger = ManyToOne('User', ondelete='cascade')
  83     tagtext = ManyToOne('TagText')
  84
  85     # this text setter is no longer useful since I changed the way Art#add_tags works
  86     # but I'll leave it in here just for several minutes nostalgia.
  87     # def set_text(self, text):
  88     #     self.tagtext = TagText.get_by(text=text)
  89     #     if not self.tagtext:
  90     #         self.tagtext = TagText(text=text)
  91     #
  92     # text = property(lambda self: self.tagtext.text, set_text)
  93
  94     def __unicode__(self):
  95         if not self.tagtext:
  96             return "(broken)"
  97         return unicode(self.tagtext)
  98
  99
 100 class TagText(Entity):
 101     text = Field(Unicode(50)) # gotta enforce this somehow
 102     tags = OneToMany('Tag')
 103
 104     def __unicode__(self):
 105         return self.text
 106
 107
 108 class Rating(Entity):
 109     art = ManyToOne('Art', ondelete='cascade')
 110     rater = ManyToOne('User', ondelete='cascade')
 111     score = Field(Integer)
 112
 113     options = {-1:"sucks", 0:"undecided", 1:"good", 2:"great"}
 114     default = 0
 115     # options = ["sucks","neutral","good","great"]
 116
 117
 118 Rating.reverse_options = dict (zip(Rating.options.values(), Rating.options.keys()))