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Two selection fields, second selection depends on the first selected value

By
inster
on 12/13/15, 8:20 AM 1,011 views

I have a wizard model, where user can choose a car from another model(named 'techdoc' with fields car brand, model, year etc).
In first selection field user chooses car brand, and in second selection user chooses car model, depends on the selected first field.
But the second field value does not displays computed values to choose after setting the second field value. 
Is there any method to make it work properly?

class Roll_wizard(models.TransientModel):

_name = 'roll.wizard'

@api.multi

def get_car_brand(self):

brand = []

result = self.env['techdoc'].search([('name', '!=', "")])

for record in result:

tup=(record.name.lower(), record.name.title())

brand.append(tup)

brand = list(set(brand))

return sorted(brand)


@property

def ret_value(self):

return self.car_brand


@api.onchange("car_brand")

def get_car_model(self):

model = []

result = self.env['techdoc'].search([('name', '=', self.ret_value)])

for record in result:

tup=(record.car_model, record.car_model.title())

model.append(tup)

model = list(set(model))

return sorted(model)


car_brand = fields.Selection(get_car_brand, string="Car Brand")

car_model = fields.Selection(get_car_model, string="Car Model")

 

If I'll print in console the result of returned value's of get_car_model:

print result

print model

techdoc(18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)

[(u'fiesta', u'Fiesta'), (u'focus', u'Focus'), (u'fusion', u'Fusion')]

 So we can see, server returns the right value, but the selection field is not updated dynamically. 

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Asked: 12/13/15, 8:20 AM
Seen: 1011 times
Last updated: 12/15/15, 3:28 PM