Django says my Model is not defined

Question

So I´m developing a project using Django and I´m trying to create several relationships between some models such as User and Country. When I try to syncdb my console outputs " Name Country is not defined". Check out the code:

class User(models.Model):
 name = models.CharField(max_length=50,null=False)
 email = models.EmailField(max_length=50,null=False)
 password = models.CharField(max_length=10,null=False)
 country = models.ForeignKey(Country,null=False) #error here
 rol = models.ForeignKey(Rol,null=False)
 job = models.ManyToManyField(Job) #UserxJob
 skill = models.ManyToManyField(Skill) #UserxSkill
 plan = models.ManyToManyField(Plan) #UserxPlan
 image = models.ForeignKey(Image)
 description = models.TextField(max_length=300)
 website = models.URLField(max_length=100,null=True)

 def __unicode__(self):
    return  self.name


class Country(models.Model):
 name = models.CharField(max_length=50,null=False)

 def __unicode__(self):
    return self.name

Could you please help me out with this one?

Solution 1

Either move the class definition of Country on above User in the file

OR

In the User model, update the attribute country to:

country = models.ForeignKey('Country',null=False) 

Documentation on this can be found here

Solution 2

You need to move the definition of Country above the definition of User.

What is happening is the compiler (when compiling to .pyc byte code) is compiling the Class definition for User and sees a reference to a Country type object. The compiler has not seen this definition yet and does not know what it is, hence the error of it being not defined.

So the basic rule of thumb-> Everything has to be defined before you call or reference it

Comments

[Paul Renton]

No worries. I would go with karthikr's alternative method of using 'Country'. That way you don't have to move things around. I just wanted to explain how the compilation worked :)