Hi,
I'm currently working on a room management application for events.
One part of it is a list of room setups with associated equipment, each
room can have an arbitrary number of different equipment (such as screens,
IT-equipment, A/, tables etc.)
Each equipment also has an attribute "number/quantity" to define how many
of it is needed, so I created a custom intermediary table (instead of
relying on the built-in one):
class roomsetup(models.Model):
name = models.CharField("Name", max_length=60)
equipments = models.ManyToManyField(equipment,
through='roomsetup_equipments') # use custom intermediary table
class equipment(models.Model):
name = models.CharField("Name", max_length=60)
# custom intermediary m2m table...
class roomsetup_equipments(models.Model):
roomsetup = models.ForeignKey(roomsetup)
equipment = models.ForeignKey(equipment)
number = models.DecimalField('Quantity/number', max_digits=6,
decimal_places=2, blank=True, null=False, default=1)
The "standard" roomsetup form I created just displays a plain list of
equipment, there is no way to change the quantity:
class RoomsetupForm(ModelForm):
class Meta:
model = roomsetup
fields = ('active', 'name', 'roomlayout', 'equipments', 'notes',)
I'm not sure what the easiest way would be to make the Quantity field
editable - I thought about a fieldset but how do I get the data from the
intermediary table into that???
Any hint/sample would be appreciated.
thomas
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