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import datetime
import os
import uuid
from django . core . urlresolvers import reverse
from django . db import models
from django . db . models import Q
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from django . utils . translation import ugettext_lazy as _
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from django . contrib . auth . models import User
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import reversion
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from markitup . fields import MarkupField
from model_utils . managers import InheritanceManager
from symposion . conference . models import Section
class ProposalSection ( models . Model ) :
"""
configuration of proposal submissions for a specific Section .
a section is available for proposals iff :
* it is after start ( if there is one ) and
* it is before end ( if there is one ) and
* closed is NULL or False
"""
section = models . OneToOneField ( Section )
start = models . DateTimeField ( null = True , blank = True )
end = models . DateTimeField ( null = True , blank = True )
closed = models . NullBooleanField ( )
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published = models . NullBooleanField ( ) # @@@ what is this used for?
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@classmethod
def available ( cls ) :
now = datetime . datetime . now ( )
return cls . _default_manager . filter (
Q ( start__lt = now ) | Q ( start = None ) ,
Q ( end__gt = now ) | Q ( end = None ) ,
Q ( closed = False ) | Q ( closed = None ) ,
)
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def is_available ( self ) :
if self . closed :
return False
now = datetime . datetime . now ( )
if self . start and self . start > now :
return False
if self . end and self . end < now :
return False
return True
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def __unicode__ ( self ) :
return self . section . name
class ProposalKind ( models . Model ) :
"""
e . g . talk vs panel vs tutorial vs poster
Note that if you have different deadlines , reviewers , etc . you ' ll want
to distinguish the section as well as the kind .
"""
section = models . ForeignKey ( Section , related_name = " proposal_kinds " )
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name = models . CharField ( _ ( " Name " ) , max_length = 100 )
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slug = models . SlugField ( )
def __unicode__ ( self ) :
return self . name
class ProposalBase ( models . Model ) :
objects = InheritanceManager ( )
kind = models . ForeignKey ( ProposalKind )
title = models . CharField ( max_length = 100 )
description = models . TextField (
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_ ( " Brief Outline " ) ,
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max_length = 400 , # @@@ need to enforce 400 in UI
help_text = " If your talk is accepted this will be made public and printed in the program. Should be one paragraph, maximum 400 characters. "
)
abstract = MarkupField (
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_ ( " Detailed Abstract " ) ,
help_text = _ ( " Detailed description and outline. Will be made public if your talk is accepted. Edit using <a href= ' http://daringfireball.net/projects/markdown/basics ' target= ' _blank ' >Markdown</a>. " )
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)
additional_notes = MarkupField (
blank = True ,
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help_text = _ ( " Anything else you ' d like the program committee to know when making their selection: your past speaking experience, open source community experience, etc. Edit using <a href= ' http://daringfireball.net/projects/markdown/basics ' target= ' _blank ' >Markdown</a>. " )
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)
submitted = models . DateTimeField (
default = datetime . datetime . now ,
editable = False ,
)
speaker = models . ForeignKey ( " speakers.Speaker " , related_name = " proposals " )
additional_speakers = models . ManyToManyField ( " speakers.Speaker " , through = " AdditionalSpeaker " , blank = True )
cancelled = models . BooleanField ( default = False )
def can_edit ( self ) :
return True
@property
def speaker_email ( self ) :
return self . speaker . email
@property
def number ( self ) :
return str ( self . pk ) . zfill ( 3 )
def speakers ( self ) :
yield self . speaker
for speaker in self . additional_speakers . exclude ( additionalspeaker__status = AdditionalSpeaker . SPEAKING_STATUS_DECLINED ) :
yield speaker
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reversion . register ( ProposalBase )
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class AdditionalSpeaker ( models . Model ) :
SPEAKING_STATUS_PENDING = 1
SPEAKING_STATUS_ACCEPTED = 2
SPEAKING_STATUS_DECLINED = 3
SPEAKING_STATUS = [
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( SPEAKING_STATUS_PENDING , _ ( " Pending " ) ) ,
( SPEAKING_STATUS_ACCEPTED , _ ( " Accepted " ) ) ,
( SPEAKING_STATUS_DECLINED , _ ( " Declined " ) ) ,
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]
speaker = models . ForeignKey ( " speakers.Speaker " )
proposalbase = models . ForeignKey ( ProposalBase )
status = models . IntegerField ( choices = SPEAKING_STATUS , default = SPEAKING_STATUS_PENDING )
class Meta :
db_table = " proposals_proposalbase_additional_speakers "
unique_together = ( " speaker " , " proposalbase " )
def uuid_filename ( instance , filename ) :
ext = filename . split ( " . " ) [ - 1 ]
filename = " %s . %s " % ( uuid . uuid4 ( ) , ext )
return os . path . join ( " document " , filename )
class SupportingDocument ( models . Model ) :
proposal = models . ForeignKey ( ProposalBase , related_name = " supporting_documents " )
uploaded_by = models . ForeignKey ( User )
created_at = models . DateTimeField ( default = datetime . datetime . now )
file = models . FileField ( upload_to = uuid_filename )
description = models . CharField ( max_length = 140 )
def download_url ( self ) :
return reverse ( " proposal_document_download " , args = [ self . pk , os . path . basename ( self . file . name ) . lower ( ) ] )