I can't find a valid way with Django OMR in order to get : ( a raw
query is also fine )
the Sites.sitename which made the Analysis where
(Analysi_Items.name='somename' and Analysis_Items.value='somevalue')
and (Analysi_items_name='somename' and
Analysis_Items.value='somevalue') and (Analysis_items.name='somename'
and Analysis_Items.value='somevalue').
class Sites(models.Model):
region = models.CharField(max_length=1000)
province = models.CharField(max_length=1000)
sitename = models.CharField(max_length=1000, primary_key=True)
class Meta:
verbose_name_plural = "Sites"
def __unicode__(self):
return self.sitename
class Analysis_Items(models.Model):
code = models.ForeignKey('Analysis')
name = models.CharField(max_lenght=100)
value = models.CharField(max_length=20)
class Meta:
verbose_name_plural = "Analysis Type"
class Analysis(models.Model):
date = models.DateField()
site = models.ForeignKey('Sites')
def __unicode__(self):
return str(self.date)
class Meta:
verbose_name_plural = "Analysis"
Hope this is clear enough. thank you in advance!
--
Fab
http://twitter.com/extremoburo
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