python - Django model with list of items -

i new django , writing simple model of phonebook.

i have object person , contact

every person can have multiple contacts.

i have 2 approaches of modelling, not sure 1 correct.

first approach:

class contact(models.model):      phone_number = models.charfield(max_length=20)      name = models.charfield(max_length=100,blank=true)  class person(models.model):     owner = models.onetoonefield(user,unique=true,primary_key=true)     phone_number = models.charfield(max_length=20,unique=true)     name = models.charfield(max_length=100,blank=true)     contacts = models.manytomanyfield('contact', blank=true) 

second approach:

class contact(models.model):     possessor = models.foreignkey(person,related_name='possessor')     phone_number = models.charfield(max_length=20)     name = models.charfield(max_length=100,blank=true)  class person(models.model):     owner = models.onetoonefield(user,unique=true,primary_key=true)     phone_number = models.charfield(max_length=20,unique=true)     name = models.charfield(max_length=100,blank=true) 

i not sure approach better (and correct?) , later easier make queries.

thanks!

the first allows contact belong more 1 person. second allows contact belong single person.