在尝试使用Django模型访问mysql视图时抛出错误

Question

我想使用django过滤器访问mysql视图中的记录，但会引发错误

class PartnerPayBillSummaryDetails(models.Model):
    invoice_no = models.CharField(max_length=200)
    invoice_id = models.IntegerField()
    partner_id = models.IntegerField()
    partner_name = models.CharField(max_length=100)
    status = models.CharField(null=False, max_length=50)
    invoice_date = models.DateField()
    bill_received_date = models.DateField()
    due_date = models.DateField()
    due_date_ageing = models.IntegerField()
    payable_amount = models.DecimalField(max_digits=20, decimal_places=2, default=0)

    class Meta:
        managed = False
        db_table = '66_1_partner_pay_bill_ageing_dtl'

try:
    p = PartnerPayBillSummaryDetails.objects.all()
    print(p)
except Exception as e:
    print(e)

错误：

OperationalError: (1054, "Unknown column '66_1_partner_pay_bill_ageing_dtl.id' in 'field list'")

Answer 1

我想出了答案

它需要一个文件作为主键。 我通过在invoice_id中添加“ primary_key = True”来解决此问题

invoice_id = models.IntegerField(primary_key=True)

Answer 2

在我看来，它正在寻找一个名为“ id”的主键（默认情况下，如果您未定义）。 同样，元类中的db_table名称也以数字开头。 不确定是否会这样。 我不在电脑上进行测试，但基于猜测，我有两种解决方案供您选择。 请按此顺序尝试。 我要做的就是在两个解决方案中都更改您的模型类。

class PartnerPayBillSummaryDetails(models.Model):
    invoice_no = models.CharField(max_length=200)
    invoice_id = models.IntegerField()
    partner_id = models.IntegerField()
    partner_name = models.CharField(max_length=100)
    status = models.CharField(null=False, max_length=50)
    invoice_date = models.DateField()
    bill_received_date = models.DateField()
    due_date = models.DateField()
    due_date_ageing = models.IntegerField()
    payable_amount = models.DecimalField(max_digits=20, decimal_places=2, default=0)

    class Meta:
        managed = False
        db_table = 'partner_pay_bill_ageing_dtl_66_1'

解决方案2

class PartnerPayBillSummaryDetails(models.Model):
    id = models.AutoField(primary_key=True)
    invoice_no = models.CharField(max_length=200)
    invoice_id = models.IntegerField()
    partner_id = models.IntegerField()
    partner_name = models.CharField(max_length=100)
    status = models.CharField(null=False, max_length=50)
    invoice_date = models.DateField()
    bill_received_date = models.DateField()
    due_date = models.DateField()
    due_date_ageing = models.IntegerField()
    payable_amount = models.DecimalField(max_digits=20, decimal_places=2, default=0)

    class Meta:
        managed = False
        db_table = 'partner_pay_bill_ageing_dtl_66_1'

请让我知道是否仍然有错误。

Answer 3

您必须向模型添加主键。

id = models.AutoField(primary_key=True)

或将任何列作为主键，例如：

invoice_id = models.IntegerField(primary_key=True)