Refonte de site Web. Migration WordPress vers Django

from django.db import models

class Solution(models.Model):
    client   = models.ForeignKey(
        "Client",
        on_delete=models.CASCADE
    )
    livree   = models.BooleanField(
        default=True
    )
    delai    = models.DurationField(
        verbose_name="dans les temps"
    )

    class Meta:
        verbose_name = "Promesse tenue"