I have a legacy Oracle database which I'm trying to model. I used
inspectdb which did a good job. However, a few of my tables contain
two fields which combine to form a foreign key constraint. In other
words the legacy database was created like this:
CREATE TABLE "MY_TABLE"
("TRACKING_ID" NUMBER NOT NULL ENABLE,
"LAST_NAME" VARCHAR(50 BYTE) NOT NULL ENABLE,
"FIRST_NAME" VARCHAR(50 BYTE) NOT NULL ENABLE
CONSTRAINT 'EMP_REF_FK" FOREIGN KEY ("LAST NAME", "FIRST NAME")
REFERENCES "EMPLOYEE_REF"("LAST_NAME, "FIRST_NAME") ENABLE
The EMPLOYEE_REF table has a primary key and the last name and first
name fields.
The models I'm using is:
class EmployeeRef(models.Model):
employee_ref_id = models.IntegerField(primary_key=True)
last_name = models.CharField(max_length=50)
first_name = models.CharField(max_length=50)
class MyTable(models.Model):
hour_tracking_id = models.DecimalField(max_digits=10,
decimal_places=0, primary_key=True)
last_name = models.ForeignKey(EmployeeRef, db_column='last_name',
related_name='employee.last_name')
first_name = models.ForeignKey(EmployeeRef,
db_column='first_name', related_name='employee.first_name')
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