class ChoiceInteraction(ductmodels.BaseDuctModel):
ns = 'http://wikiotics.org/ns/2011/flashcards'
nsmap = {'flashcards': ns}
prompt = ductmodels.Attribute(validator=_column_validator('+'))
answer = ductmodels.Attribute(validator=_column_validator(''))
def get_columns_referenced(self):
return [int(a) for a in (self.prompt.split(',') + [self.answer])]
class WikiBlobElement(ductmodels.TextBlobElement):
allowed_markup_languages = ('creole-1.0', 'ductus-html5',)
allowed_natural_languages = (None, '') + tuple(settings.DUCTUS_NATURAL_LANGUAGES)
markup_language = ductmodels.Attribute(validator=ductmodels.allowed_values_attribute_validator(allowed_markup_languages))
natural_language = ductmodels.Attribute(validator=ductmodels.allowed_values_attribute_validator(allowed_natural_languages), optional=True, blank_is_null=True)
def __init__(self):
# fixme: if Attribute had a "default" argument, we wouldn't need to
# override this constructor to set such a default
super(WikiBlobElement, self).__init__()
self.markup_language = "ductus-html5"
class AudioLessonInteraction(ductmodels.BaseDuctModel):
ns = 'http://wikiotics.org/ns/2011/flashcards'
nsmap = {'flashcards': ns}
audio = ductmodels.Attribute(validator=_column_validator(''))
transcript = ductmodels.Attribute(validator=_column_validator('?'), optional=True)
def get_columns_referenced(self):
rv = [int(self.audio)]
if self.transcript:
rv.append(int(self.transcript))
return rv
class FlashcardDeck(ductmodels.DuctModel):
ns = 'http://wikiotics.org/ns/2011/flashcards'
nsmap = {'flashcards': ns}
cards = ductmodels.ArrayElement(ductmodels.ResourceElement(Flashcard))
headings = ductmodels.ArrayElement(ductmodels.TextElement())
column_order = ductmodels.Attribute(validator=_column_order_validator, optional=True)
interactions = ductmodels.OptionalArrayElement(ductmodels.ResourceElement(ChoiceInteraction, AudioLessonInteraction, StoryBookInteraction))
# dividers will be placed just before each index given here. they are
# zero-indexed to match row numbers, e.g., a divider value of 3 means the
# divider will be placed before row 3 (visually before 4 on the editor)
# * there is never an explicit divider before the first card (index 0),
# though one is implied, obviously.
# * there is never a divider after the final row (but one is implied)
# * there are never two dividers in the same location
# * dividers must be specified in order
dividers = ductmodels.Attribute(validator=_divider_validator, optional=True)
def validate(self, strict=True):
super(FlashcardDeck, self).validate(strict)
headings_length = len(self.headings)
if headings_length == 0:
raise ductmodels.ValidationError("there are no sides")
if strict:
if any(len(card.get().sides) != headings_length for card in self.cards):
raise ductmodels.ValidationError("each card must have the same number of sides as headers given")
nonempty_headings = [h.text for h in self.headings if h.text]
if len(frozenset(nonempty_headings)) != len(nonempty_headings):
raise ductmodels.ValidationError("all nonempty headings must be unique")
r = set(range(headings_length))
for interaction in self.interactions.array:
if not all(c in r for c in interaction.get().get_columns_referenced()):
raise ductmodels.ValidationError("all referenced columns must exist in the FlashcardDeck")
if self.dividers:
first_divider_index = int(self.dividers.partition(',')[0])
last_divider_index = int(self.dividers.rpartition(',')[2])
if first_divider_index < 1 or last_divider_index >= len(self.cards):
raise ductmodels.ValidationError("divider index out of range")
if self.column_order:
highest_column_index = max(int(a) for a in self.column_order.split(','))
if highest_column_index >= headings_length:
raise ductmodels.ValidationError("column index out of range")
class Picture(ductmodels.DuctModel):
ns = 'http://wikiotics.org/ns/2009/picture'
blob = ductmodels.TypedBlobElement(
allowed_mime_types=allowed_picture_types)
credit = CreditElement()
rotation = ductmodels.Attribute(optional=True,
blank_is_null=True,
validator=rotation_validator)
def patch_from_blueprint(self, blueprint, save_context):
ductmodels.blueprint_expects_dict(blueprint)
blueprint = dict(blueprint)
if "credit" in blueprint:
del blueprint["credit"]
super(Picture, self).patch_from_blueprint(blueprint, save_context)
if 'flickr_photo_id' in blueprint:
flickr_photo_id = blueprint['flickr_photo_id']
flickr_photo_id = ductmodels.blueprint_cast_to_string(
flickr_photo_id)
# FIXME TEMPORARY
from ductus.modules.picture.flickr import FlickrUriHandler
url = 'http://flickr.com/photos/0/%s' % flickr_photo_id
if FlickrUriHandler.handles(url):
fuh = FlickrUriHandler(url)
fuh.validate()
fuh.save(save_context, picture=self, return_before_saving=True)
if 'rotation' in blueprint:
rotation = blueprint['rotation']
rotation = ductmodels.blueprint_cast_to_string(rotation)
rotation_validator(rotation)
self.rotation = rotation
if 'net_rotation' in blueprint:
net_rotation = blueprint['net_rotation']
net_rotation = ductmodels.blueprint_cast_to_string(net_rotation)
rotation_validator(net_rotation)
self.rotation = str(
(int(self.rotation or 0) + int(net_rotation or 0)) % 360)