354 lines
12 KiB
Python
354 lines
12 KiB
Python
# -*- coding: utf-8 -*-
|
||
from datetime import datetime
|
||
from decimal import Decimal
|
||
|
||
from django.db import models
|
||
from django.db.models import Q
|
||
from django.db.models.signals import post_save
|
||
|
||
from django.contrib.auth.models import User
|
||
|
||
from markitup.fields import MarkupField
|
||
|
||
from symposion.proposals.models import ProposalBase
|
||
from symposion.schedule.models import Presentation
|
||
|
||
|
||
class ProposalScoreExpression(object):
|
||
|
||
def as_sql(self, qn, connection=None):
|
||
sql = "((3 * plus_one + plus_zero) - (minus_zero + 3 * minus_one))"
|
||
return sql, []
|
||
|
||
def prepare_database_save(self, unused):
|
||
return self
|
||
|
||
|
||
class Votes(object):
|
||
PLUS_ONE = "+1"
|
||
PLUS_ZERO = "+0"
|
||
MINUS_ZERO = u"−0"
|
||
MINUS_ONE = u"−1"
|
||
|
||
CHOICES = [
|
||
(PLUS_ONE, u"+1 — Good proposal and I will argue for it to be accepted."),
|
||
(PLUS_ZERO, u"+0 — OK proposal, but I will not argue for it to be accepted."),
|
||
(MINUS_ZERO, u"−0 — Weak proposal, but I will not argue strongly against acceptance."),
|
||
(MINUS_ONE, u"−1 — Serious issues and I will argue to reject this proposal."),
|
||
]
|
||
VOTES = Votes()
|
||
|
||
|
||
class ReviewAssignment(models.Model):
|
||
AUTO_ASSIGNED_INITIAL = 0
|
||
OPT_IN = 1
|
||
AUTO_ASSIGNED_LATER = 2
|
||
|
||
NUM_REVIEWERS = 3
|
||
|
||
ORIGIN_CHOICES = [
|
||
(AUTO_ASSIGNED_INITIAL, "auto-assigned, initial"),
|
||
(OPT_IN, "opted-in"),
|
||
(AUTO_ASSIGNED_LATER, "auto-assigned, later"),
|
||
]
|
||
|
||
proposal = models.ForeignKey(ProposalBase)
|
||
user = models.ForeignKey(User)
|
||
|
||
origin = models.IntegerField(choices=ORIGIN_CHOICES)
|
||
|
||
assigned_at = models.DateTimeField(default=datetime.now)
|
||
opted_out = models.BooleanField(default=False)
|
||
|
||
@classmethod
|
||
def create_assignments(cls, proposal, origin=AUTO_ASSIGNED_INITIAL):
|
||
speakers = [proposal.speaker] + list(proposal.additional_speakers.all())
|
||
reviewers = User.objects.exclude(
|
||
pk__in=[
|
||
speaker.user_id
|
||
for speaker in speakers
|
||
if speaker.user_id is not None
|
||
] + [
|
||
assignment.user_id
|
||
for assignment in ReviewAssignment.objects.filter(
|
||
proposal_id=proposal.id)]
|
||
).filter(
|
||
groups__name="reviewers",
|
||
).filter(
|
||
Q(reviewassignment__opted_out=False) | Q(reviewassignment=None)
|
||
).annotate(
|
||
num_assignments=models.Count("reviewassignment")
|
||
).order_by(
|
||
"num_assignments", "?",
|
||
)
|
||
num_assigned_reviewers = ReviewAssignment.objects.filter(
|
||
proposal_id=proposal.id, opted_out=0).count()
|
||
for reviewer in reviewers[:max(0, cls.NUM_REVIEWERS - num_assigned_reviewers)]:
|
||
cls._default_manager.create(
|
||
proposal=proposal,
|
||
user=reviewer,
|
||
origin=origin,
|
||
)
|
||
|
||
|
||
class ProposalMessage(models.Model):
|
||
proposal = models.ForeignKey(ProposalBase, related_name="messages")
|
||
user = models.ForeignKey(User)
|
||
|
||
message = MarkupField()
|
||
submitted_at = models.DateTimeField(default=datetime.now, editable=False)
|
||
|
||
class Meta:
|
||
ordering = ["submitted_at"]
|
||
|
||
|
||
class Review(models.Model):
|
||
VOTES = VOTES
|
||
|
||
proposal = models.ForeignKey(ProposalBase, related_name="reviews")
|
||
user = models.ForeignKey(User)
|
||
|
||
# No way to encode "-0" vs. "+0" into an IntegerField, and I don't feel
|
||
# like some complicated encoding system.
|
||
vote = models.CharField(max_length=2, blank=True, choices=VOTES.CHOICES)
|
||
comment = MarkupField()
|
||
submitted_at = models.DateTimeField(default=datetime.now, editable=False)
|
||
|
||
def save(self, **kwargs):
|
||
if self.vote:
|
||
vote, created = LatestVote.objects.get_or_create(
|
||
proposal=self.proposal,
|
||
user=self.user,
|
||
defaults=dict(
|
||
vote=self.vote,
|
||
submitted_at=self.submitted_at,
|
||
)
|
||
)
|
||
if not created:
|
||
LatestVote.objects.filter(pk=vote.pk).update(vote=self.vote)
|
||
self.proposal.result.update_vote(self.vote, previous=vote.vote)
|
||
else:
|
||
self.proposal.result.update_vote(self.vote)
|
||
super(Review, self).save(**kwargs)
|
||
|
||
def delete(self):
|
||
model = self.__class__
|
||
user_reviews = model._default_manager.filter(
|
||
proposal=self.proposal,
|
||
user=self.user,
|
||
)
|
||
try:
|
||
# find the latest review
|
||
latest = user_reviews.exclude(pk=self.pk).order_by("-submitted_at")[0]
|
||
except IndexError:
|
||
# did not find a latest which means this must be the only one.
|
||
# treat it as a last, but delete the latest vote.
|
||
self.proposal.result.update_vote(self.vote, removal=True)
|
||
lv = LatestVote.objects.filter(proposal=self.proposal, user=self.user)
|
||
lv.delete()
|
||
else:
|
||
# handle that we've found a latest vote
|
||
# check if self is the lastest vote
|
||
if self == latest:
|
||
# self is the latest review; revert the latest vote to the
|
||
# previous vote
|
||
previous = user_reviews.filter(submitted_at__lt=self.submitted_at)\
|
||
.order_by("-submitted_at")[0]
|
||
self.proposal.result.update_vote(self.vote, previous=previous.vote, removal=True)
|
||
lv = LatestVote.objects.filter(proposal=self.proposal, user=self.user)
|
||
lv.update(
|
||
vote=previous.vote,
|
||
submitted_at=previous.submitted_at,
|
||
)
|
||
else:
|
||
# self is not the latest review so we just need to decrement
|
||
# the comment count
|
||
self.proposal.result.comment_count = models.F("comment_count") - 1
|
||
self.proposal.result.save()
|
||
# in all cases we need to delete the review; let's do it!
|
||
super(Review, self).delete()
|
||
|
||
def css_class(self):
|
||
return {
|
||
self.VOTES.PLUS_ONE: "plus-one",
|
||
self.VOTES.PLUS_ZERO: "plus-zero",
|
||
self.VOTES.MINUS_ZERO: "minus-zero",
|
||
self.VOTES.MINUS_ONE: "minus-one",
|
||
}[self.vote]
|
||
|
||
@property
|
||
def section(self):
|
||
return self.proposal.kind.section.slug
|
||
|
||
|
||
class LatestVote(models.Model):
|
||
VOTES = VOTES
|
||
|
||
proposal = models.ForeignKey(ProposalBase, related_name="votes")
|
||
user = models.ForeignKey(User)
|
||
|
||
# No way to encode "-0" vs. "+0" into an IntegerField, and I don't feel
|
||
# like some complicated encoding system.
|
||
vote = models.CharField(max_length=2, choices=VOTES.CHOICES)
|
||
submitted_at = models.DateTimeField(default=datetime.now, editable=False)
|
||
|
||
class Meta:
|
||
unique_together = [("proposal", "user")]
|
||
|
||
def css_class(self):
|
||
return {
|
||
self.VOTES.PLUS_ONE: "plus-one",
|
||
self.VOTES.PLUS_ZERO: "plus-zero",
|
||
self.VOTES.MINUS_ZERO: "minus-zero",
|
||
self.VOTES.MINUS_ONE: "minus-one",
|
||
}[self.vote]
|
||
|
||
|
||
class ProposalResult(models.Model):
|
||
proposal = models.OneToOneField(ProposalBase, related_name="result")
|
||
score = models.DecimalField(max_digits=5, decimal_places=2, default=Decimal("0.00"))
|
||
comment_count = models.PositiveIntegerField(default=0)
|
||
vote_count = models.PositiveIntegerField(default=0)
|
||
plus_one = models.PositiveIntegerField(default=0)
|
||
plus_zero = models.PositiveIntegerField(default=0)
|
||
minus_zero = models.PositiveIntegerField(default=0)
|
||
minus_one = models.PositiveIntegerField(default=0)
|
||
accepted = models.NullBooleanField(choices=[
|
||
(True, "accepted"),
|
||
(False, "rejected"),
|
||
(None, "undecided"),
|
||
], default=None)
|
||
status = models.CharField(max_length=20, choices=[
|
||
("accepted", "accepted"),
|
||
("rejected", "rejected"),
|
||
("undecided", "undecided"),
|
||
("standby", "standby"),
|
||
], default="undecided")
|
||
|
||
@classmethod
|
||
def full_calculate(cls):
|
||
for proposal in ProposalBase.objects.all():
|
||
result, created = cls._default_manager.get_or_create(proposal=proposal)
|
||
result.comment_count = Review.objects.filter(proposal=proposal).count()
|
||
result.vote_count = LatestVote.objects.filter(proposal=proposal).count()
|
||
result.plus_one = LatestVote.objects.filter(
|
||
proposal=proposal,
|
||
vote=VOTES.PLUS_ONE
|
||
).count()
|
||
result.plus_zero = LatestVote.objects.filter(
|
||
proposal=proposal,
|
||
vote=VOTES.PLUS_ZERO
|
||
).count()
|
||
result.minus_zero = LatestVote.objects.filter(
|
||
proposal=proposal,
|
||
vote=VOTES.MINUS_ZERO
|
||
).count()
|
||
result.minus_one = LatestVote.objects.filter(
|
||
proposal=proposal,
|
||
vote=VOTES.MINUS_ONE
|
||
).count()
|
||
result.save()
|
||
cls._default_manager.filter(pk=result.pk).update(score=ProposalScoreExpression())
|
||
|
||
def update_vote(self, vote, previous=None, removal=False):
|
||
mapping = {
|
||
VOTES.PLUS_ONE: "plus_one",
|
||
VOTES.PLUS_ZERO: "plus_zero",
|
||
VOTES.MINUS_ZERO: "minus_zero",
|
||
VOTES.MINUS_ONE: "minus_one",
|
||
}
|
||
if previous:
|
||
if previous == vote:
|
||
return
|
||
if removal:
|
||
setattr(self, mapping[previous], models.F(mapping[previous]) + 1)
|
||
else:
|
||
setattr(self, mapping[previous], models.F(mapping[previous]) - 1)
|
||
else:
|
||
if removal:
|
||
self.vote_count = models.F("vote_count") - 1
|
||
else:
|
||
self.vote_count = models.F("vote_count") + 1
|
||
if removal:
|
||
setattr(self, mapping[vote], models.F(mapping[vote]) - 1)
|
||
self.comment_count = models.F("comment_count") - 1
|
||
else:
|
||
setattr(self, mapping[vote], models.F(mapping[vote]) + 1)
|
||
self.comment_count = models.F("comment_count") + 1
|
||
self.save()
|
||
model = self.__class__
|
||
model._default_manager.filter(pk=self.pk).update(score=ProposalScoreExpression())
|
||
|
||
|
||
class Comment(models.Model):
|
||
proposal = models.ForeignKey(ProposalBase, related_name="comments")
|
||
commenter = models.ForeignKey(User)
|
||
text = MarkupField()
|
||
|
||
# Or perhaps more accurately, can the user see this comment.
|
||
public = models.BooleanField(choices=[(True, "public"), (False, "private")], default=False)
|
||
commented_at = models.DateTimeField(default=datetime.now)
|
||
|
||
|
||
class NotificationTemplate(models.Model):
|
||
|
||
label = models.CharField(max_length=100)
|
||
from_address = models.EmailField()
|
||
subject = models.CharField(max_length=100)
|
||
body = models.TextField()
|
||
|
||
|
||
class ResultNotification(models.Model):
|
||
|
||
proposal = models.ForeignKey(ProposalBase, related_name="notifications")
|
||
template = models.ForeignKey(NotificationTemplate, null=True, blank=True,
|
||
on_delete=models.SET_NULL)
|
||
timestamp = models.DateTimeField(default=datetime.now)
|
||
to_address = models.EmailField()
|
||
from_address = models.EmailField()
|
||
subject = models.CharField(max_length=100)
|
||
body = models.TextField()
|
||
|
||
def recipients(self):
|
||
for speaker in self.proposal.speakers():
|
||
yield speaker.email
|
||
|
||
@property
|
||
def email_args(self):
|
||
return (self.subject, self.body, self.from_address, self.recipients())
|
||
|
||
|
||
def promote_proposal(proposal):
|
||
if hasattr(proposal, "presentation") and proposal.presentation:
|
||
# already promoted
|
||
presentation = proposal.presentation
|
||
else:
|
||
presentation = Presentation(
|
||
title=proposal.title,
|
||
description=proposal.description,
|
||
abstract=proposal.abstract,
|
||
speaker=proposal.speaker,
|
||
section=proposal.section,
|
||
proposal_base=proposal,
|
||
)
|
||
presentation.save()
|
||
for speaker in proposal.additional_speakers.all():
|
||
presentation.additional_speakers.add(speaker)
|
||
presentation.save()
|
||
|
||
return presentation
|
||
|
||
|
||
def unpromote_proposal(proposal):
|
||
if hasattr(proposal, "presentation") and proposal.presentation:
|
||
proposal.presentation.delete()
|
||
|
||
|
||
def accepted_proposal(sender, instance=None, **kwargs):
|
||
if instance is None:
|
||
return
|
||
if instance.status == "accepted":
|
||
promote_proposal(instance.proposal)
|
||
else:
|
||
unpromote_proposal(instance.proposal)
|
||
post_save.connect(accepted_proposal, sender=ProposalResult)
|