I want to ha开发者_如何学JAVAve 2 Foreign Keys for an Inline form in the admin. I have a Timesheet model with the following fields:
class Timesheet(models.Model):
date = models.ForeignKey(DateTimesheet, related_name="day")
supervisor = models.ForeignKey(DateTimesheet, related_name="superintendent")
job = models.ForeignKey(Job)
phase = models.ForeignKey(Phase)
equip = models.ForeignKey(Equipment, null=True, blank=True)
employee = models.ForeignKey(Employee)
local = models.ForeignKey(Local)
pay_class = models.ForeignKey(PayClass)
reg = models.IntegerField(max_length=1)
ot = models.IntegerField(max_length=2, null=True, blank=True)
bill_rate = models.DecimalField(decimal_places=2,max_digits=6,blank=True,null=True)
bill_hours = models.IntegerField(max_length=2,blank=True,null=True,)
and a DateTimesheet with these Fields:
class DateTimesheet(models.Model):
date = models.DateField()
supervisor = models.ForeignKey(User)
I want to be able to select date & supervisor and then have the rest of the timesheet fields inline. It seems that I need a composite key and from what I have read Django does not have composite keys. Is this at all possible to do or am I out of luck?
If Timesheet is the parent model and DateTimesheet the inline (or vice-versa), there is no need for composite keys, just:
- make the supervisor in both Models a ForeignKey(User)
- ommit the supervisor field in the inline form
- set it to the vaule of parent model field when saving by overriding the save_formset method.
Remember:
InlineModelAdmin shares many of the same features as ModelAdmin, and adds some of its own (the shared features are actually defined in the BaseModelAdmin superclass).
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