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 import floof.model.comments
  16
  17 class Art(Entity):
  18     title = Field(Unicode(120))
  19     original_filename = Field(Unicode(120))
  20     hash = Field(String, unique=True, required=True)
  21
  22     uploader = ManyToOne('User', required=True)
  23     tags = OneToMany('Tag')
  24     discussion = ManyToOne('Discussion')
  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         self.original_filename = file.filename
  39
  40     file = property(get_path, set_file)
  41
  42     def get_path(self):
  43         if self.hash:
  44             return get_path("art", self.hash)
  45
  46
  47     def add_tags(self, tags, user):
  48         for text in tags.split():
  49             if text[0] == '-':
  50                 # Nega-tags
  51                 tagtext = TagText.get_by(text=text[1:])
  52                 if tagtext:
  53                     tag = Tag.get_by(art=self, tagger=user, tagtext=tagtext)
  54                     if tag:
  55                         elixir.session.delete(tag)
  56
  57             else:
  58                 if len(text) > 50:
  59                     raise "Long Tag!" # can we handle this more gracefully?
  60                 # sqlite seems happy to store strings much longer than the supplied limit...
  61
  62                 # elixir should really have its own find_or_create.
  63                 tagtext = find_or_create(TagText, text=text)
  64                 tag     = find_or_create(Tag, art=self, tagger=user, tagtext=tagtext)
  65
  66
  67
  68
  69     def rate(self, score, user):
  70         return update_or_create(Rating, {"rater":user, "art":self}, {"score":score})
  71
  72     def user_score(self, user):
  73         rating = Rating.get_by(rater=user, art=self)
  74         if rating:
  75             return rating.score
  76         return Rating.default
  77
  78     def __unicode__(self):
  79         return self.get_path()
  80
  81
  82 class Tag(Entity):
  83     # look into how ondelete works.  This just sets a database property.
  84     art = ManyToOne('Art', ondelete='cascade')
  85     tagger = ManyToOne('User', ondelete='cascade')
  86     tagtext = ManyToOne('TagText')
  87
  88     # this text setter is no longer useful since I changed the way Art#add_tags works
  89     # but I'll leave it in here just for several minutes nostalgia.
  90     # def set_text(self, text):
  91     #     self.tagtext = TagText.get_by(text=text)
  92     #     if not self.tagtext:
  93     #         self.tagtext = TagText(text=text)
  94     #
  95     # text = property(lambda self: self.tagtext.text, set_text)
  96
  97     def __unicode__(self):
  98         if not self.tagtext:
  99             return "(broken)"
 100         return unicode(self.tagtext)
 101
 102
 103 class TagText(Entity):
 104     text = Field(Unicode(50)) # gotta enforce this somehow
 105     tags = OneToMany('Tag')
 106
 107     def __unicode__(self):
 108         return self.text
 109
 110
 111 class Rating(Entity):
 112     art = ManyToOne('Art', ondelete='cascade')
 113     rater = ManyToOne('User', ondelete='cascade')
 114     score = Field(Integer)
 115
 116     # @score.setter
 117     # def score(self, value):
 118
 119     options = {-1:"sucks", 0:"undecided", 1:"good", 2:"great"}
 120     default = 0
 121     # options = ["sucks","neutral","good","great"]
 122
 123
 124 Rating.reverse_options = dict (zip(Rating.options.values(), Rating.options.keys()))