Using pulling information from a python function to a template

Question

I have Event objects being shown properly. But I can't seem to grab the result from a python function and place it into the template.

For instance, this is my Event model.

class Event(models.Model):
    created = models.DateTimeField(auto_now_add=True)
    modified = models.DateTimeField(auto_now=True)
    name = models.CharField(max_length=200)
    location = models.CharField(max_length=200)
    students = models.ManyToManyField(StudentProfile, null=True, blank=True)
    managers = models.ManyToManyField(ManagerProfile, null=True, blank=True)

    def __unicode__(self):
        return self.name

    def attendees(self):
        return len(self.students.count + self.managers.count)

I can successfully pull everything into my template except attendees... For instance within a search context, I'm passing events as results...

{{ result.name }} is passed into my template fine, so is {{ result.location }}.

But {{ result.attendees|length }} won't show.

Any idea why this is? Help would be greatly appreciated.

Gabi Purcaru · Accepted Answer · 2012-10-15 17:48:21Z

2

You need to use {{ result.attendees }} (no |length).

The length filter works on lists and other iterables. What you're doing there is similar to applying len(len(something)), which is obviously wrong.

answered Oct 15, 2012 at 17:48

Gabi Purcaru

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1 Comment

Modelesq Over a year ago

It seems that {{ result.attendees }} doesn't show either. :/

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