Hi All..
I've a performance problem with manyToMany relations..
I've a model like this:
class Story(models.Model):
title = models.TextField(verbose_name =
"titolo" ,max_length=200,core=True)
abstract = models.TextField('sommario',max_length=400,core=True)
text = models.TextField(verbose_name = "testo",core=True)
id_section =
models.ManyToManyField(Section,verbose_name="Sezione", null = False)
...
and the Section model is:
class Section(models.Model):
id_site = models.ForeignKey(Site,verbose_name="Sito")
section_name = models.CharField(max_length=100,core=True,
verbose_name="Nome")
order = models.IntegerField(default=0, verbose_name="Ordine")
section_father = models.ForeignKey('self',blank=True,null=True,
verbose_name="Sezione superiore")
....
In my template, every time I make:
{{ story.id_section.section_name }}
it seems that django make a new query in the 'section' table...
Is there a way to populate my Story object with the section values
just one time?
In the mysql log file I have a lot of identycal query...
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