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#1 Jan. 23, 2011 03:56:02

Mark P.
Registered: 2009-11-02
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Prepopulation: Calling a field from another class


The idea I'm trying to wrap my head around is this... the exercise db
has just id, name each "workout" can have an exercise with different
sets, reps, etc... the workout_name field I want prepopulated so it
gets the exercise name that I choose from the selector then the sets,
reps, then time so if:
exercise: id=1, name=bench press
workout could be:
sets:1, reps:5,rest:45

I'd want the "workout_name" prepopulated with "bench-press-1-5-45"
upon filling in the fields on the workout add form and selecting the
exercise (foreignkey).

Eeessh does that make sense?

--------------------
models.py

class Exercise(models.Model):
name = models.CharField(max_length=128, blank=False)

def __str__(self):
return (self.name)

class Workout(models.Model):
workout_name = models.CharField(max_length=128, blank=False)
exercise = models.ForeignKey(Exercise)
sets = models.IntegerField(max_length=2)
reps = models.IntegerField(max_length=2)
pause = models.IntegerField(max_length=3)


--------------------
admin.py:

class WorkoutAdmin(admin.ModelAdmin):
prepopulated_fields = {"workout_name": (###This is where i'd
prepopulate my selection from class Exercise.name, "sets", "reps",
"pause")}

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