Hu,
On 26 Jan 2011, at 07:22, Prof Falken wrote:
> I have two models, the first is a 'change request ticket' and the
> second reflects the status of that ticket. They are linked by a
> ForeignKeyField on the first table.
You may find it best to collapse them into a single object; using the 'choice'
option to allow the user to set the ticket's state.
> The two problems that I have are:
>
> 1) Some of the 'states' should mark the ticket as closed, so when the
> ticket is saved with the state of 'closed', it should be marked as
> 'completed' with the date and time the action was carried out.
You can jump in and change the model's data before the model is saved by
over-riding the 'save' method in your model.
Below is one of my models. My frequency attribute could be quite similar to
what you need for your state field. Below you can see where I'm setting a
number of my attributes (based upon the parent object when the Charge object is
created as an Inline) before this Charge is saved,
class Charge (models.Model):
CHARGE_FREQUENCY_CHOICES = (
(u'NRC', u'Non-Recurring'),
(u'MRC', u'Monthly'),
(u'QRC', u'Quaterly'),
(u'ARC', u'Annual')
)
frequency = models.CharField(max_length=15,
choices=CHARGE_FREQUENCY_CHOICES)
<cut more attributes>
def save(self, *args, **kwargs):
self.description = self.service
self.customer = self.service.customer
self.legacy_charge_id = None
self.prorata = False
self.created_date = datetime.date.today()
self.started_date = self.service.completed_date
self.expiry_date = self.service.expiry_date
self.terminated_date = self.service.terminated_date
super(Charge, self).save(*args, **kwargs)
In order that the user does not set (or need to set) the above fields, set the
fields attribute of the Admin object so only the values you want the user to
control are visible. Here's mine,
class ChargeInlineAdmin(admin.TabularInline):
fields = ('frequency','amount', 'currency', 'vat_chargeable')
model = Charge
extra = 0
Regards,
aid
Adrian Bool
[email protected]
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