I have 3 models, the idea is that i can do many test on one product and a
product can be removed of my stock (insert values in out table) by peoples.
In django admin how can i do for blocking to insert values in Test table
when the product is in the out table(inserted in the out table)? Where
could i write the function to block the adding and how making the error or
warning message come to the admin interface telling the user that product
is removed?
class Person (models.Model):
name = models.Charfield (max_lenght=15)
class Product (models.Model):
name = models.CharField (max_lenght=15)
outs=models.ManytoMany(Person,related_name="outs_of_product",through="Out")
class Test(models.Model):
testname = models.Charfield (max_lenght=15)
product = models.ForeignKey(Product,on_delete=models.CASCADE)
class Out (models.Model):
date= models.DateField ()
person=models.ForeignKey(Persone,related_name="peoples_out_product",on_delete=models.CASCADE)
product=models.ForeignKey(Persone,related_name="products_out",on_delete=models.CASCADE)
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