X-Git-Url: https://git.mdrn.pl/edumed.git/blobdiff_plain/edf75472e12f32cbffb5e9b1d255a00238259e29..baf89aa9174c764f934662e8b24ed9a99a1c3992:/stage2/models.py diff --git a/stage2/models.py b/stage2/models.py index 1c6bc49..204b4da 100644 --- a/stage2/models.py +++ b/stage2/models.py @@ -3,10 +3,14 @@ import os 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 @@ -19,6 +23,7 @@ class Participant(models.Model): 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') @@ -49,34 +54,200 @@ class Participant(models.Model): 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) + title = models.CharField(_('title'), max_length=128, blank=True) 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'{url}', 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): + 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): @@ -84,6 +255,9 @@ 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) @@ -93,11 +267,21 @@ class Attachment(models.Model): 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()