from django.db import models
from django.db.models.signals import post_save
from django.dispatch import receiver
+from django.utils.html import format_html, strip_tags
from django.utils.translation import ugettext_lazy as _
from django.utils import timezone
from jsonfield import JSONField
class Assignment(models.Model):
- title = models.CharField(_('title'), max_length=128)
+ title = models.CharField(_('title'), max_length=128, blank=True)
content = models.TextField(_('content'))
content_url = models.URLField(_('URL'))
deadline = models.DateTimeField(_('deadline'))
def __unicode__(self):
return self.title
- def available_answers(self, expert):
+ def available_answers(self, expert, marked=False):
+ if marked:
+ return self.answer_set.filter(mark__expert=expert).order_by('id').distinct('id')
answers = self.answer_set.exclude(mark__expert=expert)
+ assigned_to_expert = self.answer_set.filter(experts=expert).exists()
+ is_supervisor = expert in self.supervisors.all()
+ is_arbiter = expert in self.arbiters.all()
+ if assigned_to_expert:
+ expert_answers = answers.filter(experts=expert)
+ if expert_answers or not is_arbiter:
+ answers = expert_answers
answers = answers.extra(where=[
"field_values::text ~ ': *\"[^\"]+\"' "
"OR EXISTS (SELECT id FROM stage2_attachment WHERE answer_id = stage2_answer.id) "
"OR EXISTS (SELECT id FROM stage2_fieldoption WHERE answer_id = stage2_answer.id)"])
- if expert not in self.supervisors.all():
- answers = answers.exclude(complete=True).filter(participant__complete_set=True)
- if expert in self.arbiters.all():
+ if not is_supervisor:
+ answers = answers.exclude(complete=True)
+ if not is_supervisor or not self.is_active():
+ answers = answers.filter(participant__complete_set=True)
+ if is_arbiter:
answers = answers.filter(need_arbiter=True)
return answers
+ def field_counts(self, answers):
+ for field_desc in self.field_descriptions:
+ field_name, params = field_desc
+ if params['type'] == 'options':
+ field_count = FieldOption.objects.filter(
+ answer__in=list(answers), set__name=params['option_set']).count()
+ else: # text, link
+ field_count = sum(1 for answer in answers if answer.field_values.get(field_name))
+ yield field_name, field_count
+
+ def expert_counts(self):
+ for expert in self.experts.all():
+ assigned_count = self.answer_set.filter(experts=expert).count()
+ marked_count = self.available_answers(expert, marked=True).count()
+ if assigned_count != 0 or marked_count != 0:
+ yield expert, marked_count, assigned_count
+
+ def complete_answers(self):
+ return self.answer_set.filter(complete=True)
+
+ def needing_arbiter(self):
+ return self.answer_set.filter(need_arbiter=True)
+
def is_active(self):
return self.deadline >= timezone.now()
+class MarkCriterion(models.Model):
+ assignment = models.ForeignKey(Assignment)
+ order = models.IntegerField()
+ label = models.CharField(max_length=1024)
+ max_points = models.IntegerField()
+
+ class Meta:
+ ordering = ['order']
+ unique_together = ['assignment', 'order']
+
+ def __unicode__(self):
+ return strip_tags(self.form_label())
+
+ def form_label(self):
+ return '%s. %s' % (self.order, self.label)
+
+
class Answer(models.Model):
participant = models.ForeignKey(Participant)
assignment = models.ForeignKey(Assignment)
field_values = JSONField(_('field values'), default={})
+ experts = models.ManyToManyField(
+ settings.AUTH_USER_MODEL, verbose_name=_('experts'), related_name='stage2_assigned_answers')
# useful redundancy
complete = models.BooleanField(default=False)
need_arbiter = models.BooleanField(default=False)
def fields(self):
for field_desc in self.assignment.field_descriptions:
field_name, params = field_desc
- if params['type'] == 'text':
- yield (field_name, self.field_values.get(field_name, ''))
- else: # options
+ if params['type'] == 'options':
option = self.fieldoption_set.filter(set__name=params['option_set'])
- yield (field_name, option.get().value if option else '--------')
+ value = option.get().value if option else '--------'
+ else: # text, link
+ value = self.field_values.get(field_name, '')
+ if params['type'] == 'link':
+ value = format_html(u'<a href="{url}">{url}</a>', url=value)
+ yield field_name, value
+
+ def total_points(self):
+ criterion_count = self.assignment.markcriterion_set.count()
+ for expert_id in self.mark_set.values_list('expert_id', flat=True).distinct():
+ marks = self.mark_set.filter(expert_id=expert_id)
+ if len(marks) == criterion_count:
+ yield sum(mark.points for mark in marks)
def update_complete(self):
- marks = self.mark_set.all()
- if len(marks) < 2:
+ total_points = list(self.total_points())
+ if len(total_points) < 2:
complete = False
need_arbiter = False
- elif len(marks) == 2:
- mark1, mark2 = marks
- complete = abs(mark1.points - mark2.points) < 0.2 * self.assignment.max_points
+ elif len(total_points) == 2:
+ points1, points2 = total_points
+ complete = abs(points1 - points2) < 0.2 * self.assignment.max_points
need_arbiter = not complete
else:
complete = True
self.save()
def score(self):
- marks = self.mark_set.all()
- if len(marks) < 2:
+ total_marks = list(self.total_points())
+ if len(total_marks) < 2:
return None
- return self.mark_set.aggregate(avg=models.Avg('points'))['avg']
+ return sum(total_marks) / len(total_marks)
+
+ # unrelated to `complete' attribute, but whatever
+ def is_complete(self):
+ file_count = len(self.assignment.file_descriptions)
+ field_count = len(self.assignment.field_descriptions)
+ if self.attachment_set.count() < file_count:
+ return False
+ if self.fieldoption_set.count() + sum(1 for k, v in self.field_values.iteritems() if v) < field_count:
+ return False
+ return True
class FieldOptionSet(models.Model):
class Mark(models.Model):
expert = models.ForeignKey(settings.AUTH_USER_MODEL)
answer = models.ForeignKey(Answer)
+ criterion = models.ForeignKey(MarkCriterion)
points = models.DecimalField(verbose_name=_('points'), max_digits=3, decimal_places=1)
class Meta:
- unique_together = ['expert', 'answer']
+ unique_together = ['expert', 'answer', 'criterion']
@receiver(post_save, sender=Mark, dispatch_uid='update_answer')
fnp / edumed.git / blobdiff