You want this page: https://docs.djangoproject.com/en/1.7/ref/models/fields/#module-django.db.models.fields.related https://docs.djangoproject.com/en/1.7/ref/m

You want this page: https://docs.djangoproject.com/en/1.7/ref/models/fields/#module-django.db.models.fields.related https://docs.djangoproject.com/en/1.7/ref/models/fields/#mod... In general: Django's ForeignKey is equivalent to Rails' belongs_to. Django's OneToOneField is equivalent to Rails' has_one. Django's ManyToManyField is equivalent to Rails' has_and_belongs_to_many. Also, in Django one generally only declares the relationship from one "side", unlike Rails where the relationship is declared on both "sides" (i.e., in Django one simply sets up a ForeignKey on A pointing to B, rather than placing relationship identifiers on both A and B). The equivalent of ":through" is also available. Django has GenericForeignKey as an equivalent to Rails' polymorphic associations.