import random
import string
-from django.contrib.auth.models import User
+from django.conf import settings
from django.core.urlresolvers import reverse
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
from contact.models import Contact
last_name = models.CharField(_('last_name'), max_length=100)
email = models.EmailField(_('email'), max_length=100, unique=True)
key_sent = models.BooleanField(_('key sent'), default=False)
+ complete_set = models.BooleanField(default=False)
class Meta:
verbose_name = _('participant')
def check(self, key):
return key == self.key
+ def score(self):
+ return sum(answer.score() for answer in self.answer_set.all())
+
class Assignment(models.Model):
title = models.CharField(_('title'), max_length=128)
content = models.TextField(_('content'))
+ content_url = models.URLField(_('URL'))
deadline = models.DateTimeField(_('deadline'))
max_points = models.IntegerField(_('max points'))
- file_descriptions = JSONField(_('file descriptions'))
+ experts = models.ManyToManyField(
+ settings.AUTH_USER_MODEL, verbose_name=_('experts'), related_name='stage2_assignments')
+ arbiters = models.ManyToManyField(
+ settings.AUTH_USER_MODEL, blank=True, verbose_name=_('arbiters'), related_name='stage2_arbitrated')
+ supervisors = models.ManyToManyField(
+ settings.AUTH_USER_MODEL, verbose_name=_('supervisors'), related_name='stage2_supervised')
+ file_descriptions = JSONField(_('file descriptions'), default=[], blank=True)
+ field_descriptions = JSONField(_('field descriptions'), default=[], blank=True)
class Meta:
- ordering = ['deadline']
+ ordering = ['deadline', 'title']
verbose_name = _('assignment')
verbose_name_plural = _('assignments')
def __unicode__(self):
return self.title
+ 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 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)
class Meta:
unique_together = ['participant', 'assignment']
+ def fields(self):
+ for field_desc in self.assignment.field_descriptions:
+ field_name, params = field_desc
+ if params['type'] == 'options':
+ option = self.fieldoption_set.filter(set__name=params['option_set'])
+ 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 in self.experts.all():
+ marks = self.mark_set.filter(expert=expert)
+ if len(marks) == criterion_count:
+ yield sum(mark.points for mark in marks)
+
+ def update_complete(self):
+ total_points = list(self.total_points())
+ if len(total_points) < 2:
+ complete = False
+ need_arbiter = False
+ 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
+ need_arbiter = False
+ self.complete = complete
+ self.need_arbiter = need_arbiter
+ self.save()
+
+ def score(self):
+ total_marks = list(self.total_points())
+ if len(total_marks) < 2:
+ return None
+ 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):
+ name = models.CharField(verbose_name=_('nazwa'), max_length=32, db_index=True)
+
+ class Meta:
+ verbose_name = _('option set')
+ verbose_name_plural = _('option sets')
+
+ def __unicode__(self):
+ return self.name
+
+ def choices(self, answer):
+ return [('', '--------')] + [
+ (option.id, option.value)
+ for option in self.fieldoption_set.extra(
+ where=['answer_id is null or answer_id = %s'],
+ params=[answer.id])]
+
+
+class FieldOption(models.Model):
+ set = models.ForeignKey(FieldOptionSet, verbose_name=_('zestaw'))
+ value = models.CharField(verbose_name=_('value'), max_length=255)
+ answer = models.ForeignKey(Answer, verbose_name=_('answer'), null=True, blank=True)
+
+ class Meta:
+ ordering = ['set', 'value']
+ verbose_name = _('option')
+ verbose_name_plural = _('options')
+
+ def __unicode__(self):
+ return self.value
+
def attachment_path(instance, filename):
answer = instance.answer
- return 'stage2/attachment/%s/%s/%s' % (answer.participant_id, answer.assignment_id, filename)
+ return 'stage2/attachment/%s/%s/%s/%s' % (answer.participant_id, answer.assignment_id, instance.file_no, filename)
class Attachment(models.Model):
file_no = models.IntegerField()
file = models.FileField(upload_to=attachment_path)
+ class Meta:
+ ordering = ['file_no']
+
def filename(self):
return os.path.basename(self.file.name)
args=(self.answer.assignment_id, self.file_no,
self.answer.participant_id, self.answer.participant.key))
+ def expert_download_url(self):
+ return reverse('stage2_expert_download', args=[self.id])
+
class Mark(models.Model):
- expert = models.ForeignKey(User)
+ expert = models.ForeignKey(settings.AUTH_USER_MODEL)
answer = models.ForeignKey(Answer)
- points = models.DecimalField(max_digits=3, decimal_places=1)
+ 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')
+def update_answer(sender, **kwargs):
+ mark = kwargs['instance']
+ mark.answer.update_complete()
fnp / edumed.git / blobdiff