X-Git-Url: https://git.mdrn.pl/edumed.git/blobdiff_plain/cced2ec09ed232c6044bfc2c8e98fb6af6503ba2..eb86b37548068a37248eeb24b48656a0c88cd034:/stage2/models.py?ds=inline diff --git a/stage2/models.py b/stage2/models.py index c21c53a..8407ef2 100644 --- a/stage2/models.py +++ b/stage2/models.py @@ -8,6 +8,7 @@ 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 @@ -80,22 +81,79 @@ class Assignment(models.Model): def __unicode__(self): return self.title - def available_answers(self, expert): - answers = self.answer_set.exclude(mark__expert=expert).filter(participant__complete_set=True) - if expert not in self.supervisors.all(): + 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 expert in self.arbiters.all(): + 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) @@ -103,14 +161,33 @@ class Answer(models.Model): 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'{url}', 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): - 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 @@ -120,10 +197,20 @@ class Answer(models.Model): 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): @@ -187,10 +274,11 @@ class Attachment(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')