auf_savoirs_en_partage/savoirs/models.py

   1 # -*- encoding: utf-8 -*-
   2 from django.db import models
   3 import simplejson
   4 import uuid, datetime
   5 from timezones.fields import TimeZoneField
   6 from savoirs.globals import META
   7 from auf_references_modeles.models import Thematique, Discipline
   8
   9 class Discipline(models.Model):
  10     id = models.IntegerField(primary_key=True, db_column='id_discipline')
  11     nom = models.CharField(max_length=765, db_column='nom_discipline')
  12
  13     def __unicode__ (self):
  14         return self.nom
  15
  16     class Meta:
  17         db_table = u'discipline'
  18         ordering = ["nom",]
  19
  20 class SourceActualite(models.Model):
  21     nom = models.CharField(max_length=255)
  22     url = models.CharField(max_length=255)
  23
  24 class Actualite(models.Model):
  25     id = models.AutoField(primary_key=True, db_column='id_actualite')
  26     titre = models.CharField(max_length=765, db_column='titre_actualite')
  27     texte = models.TextField(db_column='texte_actualite')
  28     url = models.CharField(max_length=765, db_column='url_actualite')
  29     logo = models.CharField(max_length=765, db_column='logo_actualite')
  30     date = models.DateField(db_column='date_actualite')
  31     visible = models.CharField(max_length=3, db_column='visible_actualite')
  32     ancienid = models.IntegerField(db_column='ancienId_actualite')
  33
  34     def __unicode__ (self):
  35         return "Actualite %d: %s" % (self.id, self.titre)
  36
  37     class Meta:
  38         db_table = u'actualite'
  39         ordering = ["-date",]
  40
  41
  42 class ActiveManager(models.Manager):
  43     def get_query_set(self):
  44         return super(ActiveManager, self).get_query_set().filter(actif=True)
  45
  46 class Evenement(models.Model):
  47     actif = models.BooleanField(default = True)
  48     uid = models.CharField(max_length = 255, default = uuid.uuid1)
  49     approuve = models.BooleanField(default = False)
  50     titre = models.CharField(max_length=255)
  51     discipline = models.ForeignKey('Discipline', related_name = "discipline",
  52                                    blank = True, null = True)
  53     discipline_secondaire = models.ForeignKey('Discipline', related_name = \
  54                                               "discipline_secondaire",
  55                                               verbose_name = \
  56                                               "Discipline secondaire",
  57                                               blank = True, null = True)
  58     mots_cles = models.TextField('Mots-Clés', blank = True, null = True)
  59     type = models.CharField(max_length = 255, choices = \
  60                             (('Colloque', 'Colloque'),
  61                              ('Conférence', 'Conférence'),
  62                              ('Appel à contribution', 'Appel à contribution'),
  63                              ('Journée d\'étude', 'Journée d\'étude'),
  64                              (None, 'Autre')
  65                             )) #TODO: choices
  66     fuseau = TimeZoneField(verbose_name = 'Fuseau horaire')
  67     debut = models.DateTimeField(default = datetime.datetime.now)
  68     fin = models.DateTimeField(default = datetime.datetime.now)
  69     lieu = models.TextField()
  70     description = models.TextField(blank = True, null = True)
  71     #fichiers = TODO?
  72     contact = models.TextField(blank = True, null = True)
  73     url = models.CharField(max_length=255, blank = True, null = True)
  74
  75     objects = ActiveManager()
  76
  77 class Record(models.Model):
  78
  79     #fonctionnement interne
  80     id = models.AutoField(primary_key = True)
  81     server = models.CharField(max_length = 255)
  82     last_update = models.CharField(max_length = 255)
  83     last_checksum = models.CharField(max_length = 255)
  84
  85     #OAI
  86     title = models.TextField(null = True, blank = True)
  87     creator = models.TextField(null = True, blank = True)
  88     description = models.TextField(null = True, blank = True)
  89     modified = models.CharField(max_length = 255, null = True, blank = True)
  90     identifier = models.CharField(max_length = 255, null = True, blank = True, unique = True)
  91     uri = models.CharField(max_length = 255, null = True, blank = True, unique = True)
  92     source = models.TextField(null = True, blank = True)
  93     contributor = models.TextField(null = True, blank = True)
  94     subject = models.TextField(null = True, blank = True)
  95     publisher = models.TextField(null = True, blank = True)
  96     type = models.TextField(null = True, blank = True)
  97     format = models.TextField(null = True, blank = True)
  98     language = models.TextField(null = True, blank = True)
  99
 100     #SEP 2 (aucune données récoltées)
 101     alt_title = models.TextField(null = True, blank = True)
 102     abstract = models.TextField(null = True, blank = True)
 103     creation = models.CharField(max_length = 255, null = True, blank = True)
 104     issued = models.CharField(max_length = 255, null = True, blank = True)
 105     isbn = models.TextField(null = True, blank = True)
 106     orig_lang = models.TextField(null = True, blank = True)
 107
 108     # Metadata AUF multivaluées
 109     disciplines = models.ManyToManyField(Discipline)
 110     thematiques = models.ManyToManyField(Thematique)
 111
 112     def __unicode__(self):
 113         return "R[%s] %s" % (self.id, self.title)
 114
 115 # Ces fonctions sont utilisées pour travailler directement sur les données JSON enregistrées tel quel
 116 # sur la base de données. Lorsque le modèle est initialisé, les fields sont décodés, et lorsque l'objet
 117 # est sauvegardé, on s'assure de remettre les données encodées en  JSON.
 118 # TODO : a terme, les données ne seront plus stockées au format JSON dans la BD et ces fonctions seront
 119 # donc obsolètes.
 120 #
 121 #    def save(self, *args, **kwargs):
 122 #
 123 #        for field_name in [f for f in self._meta.get_all_field_names() if f in META.keys()]:
 124 #            v = getattr (self, field_name, None)
 125 #            setattr(self, field_name, simplejson.dumps(v))
 126 #
 127 #        super(Record, self).save(*args, **kwargs)
 128 #
 129 #def decode_json(instance, **kwargs):
 130 #  for field_name in [f for f in instance._meta.get_all_field_names() if f in META.keys()]:
 131 #      json = getattr(instance, field_name)
 132 #      data = "-"
 133 #      v = getattr (instance, field_name, None)
 134 #      if v is not None:
 135 #          data = simplejson.loads(v)
 136 #      if not isinstance(data, basestring):
 137 #        decoded_value =  u",".join(data)
 138 #      else:
 139 #        decoded_value = data
 140 #      setattr(instance, field_name, decoded_value)
 141 #
 142 #models.signals.post_init.connect(decode_json, Record)
 143
 144
 145 class HarvestLog(models.Model):
 146     context = models.CharField(max_length = 255)
 147     name = models.CharField(max_length = 255)
 148     date = models.DateTimeField(auto_now = True)
 149     added = models.IntegerField(null = True, blank = True)
 150     updated = models.IntegerField(null = True, blank = True)
 151     record = models.ForeignKey(Record, null = True, blank = True)
 152
 153     @staticmethod
 154     def add(message):
 155         logger = HarvestLog()
 156         if message.has_key('record_id'):
 157             message['record'] = Record.objects.get(id=message['record_id'])
 158             del(message['record_id'])
 159
 160         for k,v in message.items():
 161             setattr(logger, k, v)
 162         logger.save()