admin: <class 'sample.admin.StatusPermInline'>: (admin.E202) 'sample.StatusPerm' has more than one ForeignKey to 'sample.Status'.

[hdknr]

• admin #18
• 親モデルが2フィールド持っている場合のインライン

models.py:

class StatusPerm(models.Model):
    status = models.ForeignKey(
        Status, related_name='perm_set', on_delete=models.CASCADE)
    status_from = models.ForeignKey(
        Status, related_name='permfrom_set', on_delete=models.CASCADE,
        null=True, blank=True, default=None)
    perm = models.ForeignKey(
        Permission, on_delete=models.CASCADE, )

admin.py:

class StatusPermInline(admin.TabularInline):
    model = models.StatusPerm
    exclude = []
    extra = 0

[hdknr]

fk_name を定義する

class StatusPermInline(admin.TabularInline):
    model = models.StatusPerm
    exclude = []
    extra = 0
    fk_name = 'status'