curriculum/models.py

   1 # -*- coding: utf-8
   2 import re
   3 from django.core.urlresolvers import reverse
   4 from django.db import models
   5 from django.utils.translation import ugettext_lazy as _
   6 from fnpdjango.utils.models.translation import add_translatable
   7
   8 class Section(models.Model):
   9     slug = models.SlugField(_('slug'))
  10     order = models.IntegerField(_('order'))
  11
  12     class Meta:
  13         ordering = ['order']
  14         verbose_name = _('section')
  15         verbose_name_plural = _('sections')
  16
  17     def __unicode__(self):
  18         return self.name
  19
  20     def get_absolute_url(self):
  21         return "%s?s=%d" % (reverse("curriculum"), self.pk)
  22
  23     def url_for_level(self, level):
  24         return "%s?s=%d&level=%s&d=1" % (reverse("curriculum"), self.pk, level.slug)
  25
  26 add_translatable(Section, {
  27     'name': models.CharField(_('name'), max_length=255, default = '')
  28 })
  29
  30
  31 class Competence(models.Model):
  32     section = models.ForeignKey(Section)
  33     slug = models.SlugField(_('slug'))
  34     order = models.IntegerField(_('order'))
  35
  36     class Meta:
  37         ordering = ['section', 'order']
  38         verbose_name = _('competence')
  39         verbose_name_plural = _('competences')
  40
  41     def __unicode__(self):
  42         return self.name
  43
  44     def get_absolute_url(self):
  45         return "%s?c=%d" % (reverse("curriculum"), self.pk)
  46
  47     def for_level(self, level):
  48         return self.competencelevel_set.get(level=level)
  49
  50     def url_for_level(self, level):
  51         return self.for_level(level).get_absolute_url()
  52
  53     @classmethod
  54     def from_text(cls, text):
  55         """Tries to return a Competence or a Section."""
  56         parts = re.split(ur'[-\u2013]', text, 1)
  57         if len(parts) == 1:
  58             return Section.objects.get(name__iexact=text.strip())
  59         else:
  60             return cls.objects.get(name__iexact=parts[1].strip())
  61
  62 add_translatable(Competence, {
  63     'name': models.CharField(_('name'), max_length=255, default = '')
  64 })
  65
  66
  67 class Level(models.Model):
  68     slug = models.CharField(_('slug'), max_length=255)
  69     order = models.IntegerField(_('order'))
  70
  71     class Meta:
  72         ordering = ['order']
  73         verbose_name = _('educational level')
  74         verbose_name_plural = _('educational levels')
  75
  76     def __unicode__(self):
  77         return self.name
  78
  79 add_translatable(Level, {
  80     'name': models.CharField(_('name'), max_length=255, default = ''),
  81     'group': models.CharField(_('group'), max_length=255, default = '')
  82 })
  83
  84
  85 class CompetenceLevel(models.Model):
  86     competence = models.ForeignKey(Competence)
  87     level = models.ForeignKey(Level)
  88
  89     class Meta:
  90         ordering = ['competence', 'level']
  91         verbose_name = _('competence on level')
  92         verbose_name_plural = _('competences on levels')
  93
  94     def __unicode__(self):
  95         return u"%s/%s" % (self.competence, self.level)
  96
  97     def get_absolute_url(self):
  98         return "%s?c=%d&level=%s&d=1" % (reverse("curriculum"), self.competence.pk, self.level.slug)
  99
 100 add_translatable(CompetenceLevel, {
 101     'description': models.TextField(_('description'), default = '')
 102 })
 103
 104
 105 class CurriculumLevel(models.Model):
 106     title = models.CharField(max_length=16, db_index=True)
 107
 108     class Meta:
 109         verbose_name = _("curriculum level")
 110         verbose_name_plural = _("curriculum levels")
 111
 112     def __unicode__(self):
 113         return self.title
 114
 115
 116 class CurriculumCourse(models.Model):
 117     title = models.CharField(max_length=255)
 118     accusative = models.CharField(max_length=255)
 119     slug = models.CharField(max_length=255, db_index=True)
 120
 121     class Meta:
 122         verbose_name = _("curriculum course")
 123         verbose_name_plural = _("curriculum courses")
 124         ordering = ['slug']
 125
 126     def __unicode__(self):
 127         return self.title
 128
 129
 130 class Curriculum(models.Model):
 131     """Official curriculum."""
 132     TYPES = {'c': u'Cele kształcenia', 't': u'Treści nauczania'}
 133
 134     identifier = models.CharField(max_length=255, db_index=True)
 135     title = models.CharField(max_length=255)
 136     course = models.ForeignKey(CurriculumCourse)
 137     level = models.ForeignKey(CurriculumLevel)
 138     type = models.CharField(max_length=16, choices=TYPES.items())
 139
 140     class Meta:
 141         verbose_name = _("curriculum item")
 142         verbose_name_plural = _("curriculum items")
 143
 144     def __unicode__(self):
 145         return self.identifier
 146
 147     @classmethod
 148     def from_text(cls, identifier, title):
 149         m = re.match(r"^\d+/(?P<level>[^/]+)/(?P<course>[^/]+)/"
 150                      "(?P<type>(?:%s))[^/]+(?P<roz>/roz)?" %
 151                         "|".join(cls.TYPES), identifier)
 152         assert m is not None, "Curriculum identifier doesn't match template."
 153         level, created = CurriculumLevel.objects.get_or_create(
 154                                        title=m.group('level'))
 155         def_title = m.group('course').title()
 156         course, created = CurriculumCourse.objects.get_or_create(
 157                                         slug=m.group('course').lower(),
 158                                         defaults={
 159                                             'title': def_title,
 160                                             'accusative': def_title,
 161                                         })
 162         type_ = m.group('type')
 163         if m.group('roz'):
 164             title += " (zakres rozszerzony)"
 165
 166         try:
 167             curr = cls.objects.get(identifier=identifier)
 168         except cls.DoesNotExist:
 169             curr = cls(identifier=identifier)
 170         curr.title = title
 171         curr.course = course
 172         curr.level = level
 173         curr.type = type_
 174         curr.save()
 175         return curr
 176