I want to call a function from my model at a template such as:
class ChannelStatus(models.Model):
..............................
..............................
def get_related_deltas(self,epk):
mystring = ""
if not self.get_error_code_delta(epk):
return mystring
else:
for i in self.get_listof_outage():
item = i.error_code.all()
for x in item:
if epk == x.id:
mystring= mystring +" "+str(i.delta())
return mystring
And when I want to call this from the template: assume while rendering, I pass channel_status_list as
channel_status_list = ChannelStatus.objects.all()
{% for i in channel_status_list %}
{{ i.get_related_deltas(3) }}
{% endfor %}
This doesn't work, I am able to call a function that consumes nothing, but couln't find what to do if it has parameter(s)
Cheers
You can't call a function with parameters from the template. You can only do this in the view. Alternatively you could write a custom template filter, which might look like this:
@register.filter
def related_deltas(obj, epk):
return obj.get_related_deltas(epk)
So now you can do this in the template:
{% for i in channel_status_list %}
{{ i|related_deltas:3 }}
{% endfor %}