模板中的Django格式数据库条目

Question

I'm trying to show office hours for a doctor and would like to have the hours for the same day in one line, instead of having them on different lines.

For instance, this is how it's currently showed in the templates

Sunday: 9 am - noon
Sunday: 1pm - 9pm
Monday: 8:30am - 11am

I want it to be shown

Sunday: 9am - noon , 1pm - 9pm
Monday: 8:30am - 11am

How can I do that?

models.py

WEEKDAYS = [
  (1, ("Sunday")),
  (2, ("Monday")),
  (3, ("Tuesday")),
  (4, ("Wednesday")),
  (5, ("Thursday")),
  (6, ("Friday")),
  (7, ("Saturday")),
]


class OpeningHour(models.Model):

    doctor = models.ForeignKey(Doctor)
    weekday = models.IntegerField(choices=WEEKDAYS)
    from_hour = models.TimeField(unique=False)
    to_hour = models.TimeField(unique=False)

    class Meta:
        ordering = ('weekday', 'from_hour')

    def __unicode__(self):
        return u'%s: %s: %s - %s' % (self.doctor.name, self.get_weekday_display(),
                                 self.from_hour, self.to_hour)

template.py

 {% for a in Hours %}
                <p>{{a.get_weekday_display}}: {{a.from_hour}} - {{a.to_hour}}</p>
            {% endfor %}

hours list

views.py

hours = OpeningHour.objects.filter(doctor_id=id)

Answer 1

Assuming the hours in the template represent an ordered list of OpeningHour objects (ordered by weekday), then you can use the ifchanged template tag. Something like:

{% for a in hours %}
    {% ifchanged a.weekday %}
        <p> {{a.get_weekday_display}}:
    {% endifchanged %}
    {{a.from_hour}} - {{a.to_hour}}, 
    {% ifchanged a.weekday %}
        </p>
    {% endifchanged %}
{% endfor %}

(should probably be adapted to take into account some limit conditions, but this is the idea)