I want to call a function from my model at a template such as:
class ChannelStatus(models.Model): .............................. .........................
Another option is to define a property. See http://adam.gomaa.us/blog/2008/aug/11/the-python-property-builtin/ .
You write your function that can do pretty much anything you want. You make it a read only property. You call the property from the template.
Et voilà !!!!