我可以在不创建表单的情况下创建 Django 中不需要的管理字段吗？

发布于 2024-12-03 14:24:49 字数 745 浏览 1 评论 0原文

每次我在 Django 的管理部分输入新玩家时，我都会收到一条错误消息，显示“此字段是必填的。”。

有没有一种方法可以使字段成为不需要的字段，而无需创建自定义表单？我可以在 models.py 或 admin.py 中执行此操作吗？

这是我在 models.py 中的类的样子。

class PlayerStat(models.Model):
    player = models.ForeignKey(Player)

    rushing_attempts = models.CharField(
        max_length = 100,
        verbose_name = "Rushing Attempts"
        )
    rushing_yards = models.CharField(
        max_length = 100,
        verbose_name = "Rushing Yards"
        )
    rushing_touchdowns = models.CharField(
        max_length = 100,
        verbose_name = "Rushing Touchdowns"
        )
    passing_attempts = models.CharField(
        max_length = 100,
        verbose_name = "Passing Attempts"
        )

谢谢

原文

Every time I enter in a new player in the Admin portion of Django I get an error message that says "This field is required.".

Is there a way to make a field not required without having to create a custom form? Can I do this within models.py or admin.py?

Here's what my class in models.py looks like.

class PlayerStat(models.Model):
    player = models.ForeignKey(Player)

    rushing_attempts = models.CharField(
        max_length = 100,
        verbose_name = "Rushing Attempts"
        )
    rushing_yards = models.CharField(
        max_length = 100,
        verbose_name = "Rushing Yards"
        )
    rushing_touchdowns = models.CharField(
        max_length = 100,
        verbose_name = "Rushing Touchdowns"
        )
    passing_attempts = models.CharField(
        max_length = 100,
        verbose_name = "Passing Attempts"
        )

Thanks

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风尘浪孓 2024-12-10 14:24:49

只需输入

blank=True

您的模型即：

rushing_attempts = models.CharField(
        max_length = 100,
        verbose_name = "Rushing Attempts",
        blank=True
        )

Just Put

blank=True

in your model i.e.:

rushing_attempts = models.CharField(
        max_length = 100,
        verbose_name = "Rushing Attempts",
        blank=True
        )

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手长情犹 2024-12-10 14:24:49

使用空白=True，null=True

class PlayerStat(models.Model):
    player = models.ForeignKey(Player)

    rushing_attempts = models.CharField(
        max_length = 100,
        verbose_name = "Rushing Attempts",
        blank=True,
        null=True
        )
    rushing_yards = models.CharField(
        max_length = 100,
        verbose_name = "Rushing Yards",
        blank=True,
        null=True
        )
    rushing_touchdowns = models.CharField(
        max_length = 100,
        verbose_name = "Rushing Touchdowns",
        blank=True,
        null=True
        )
    passing_attempts = models.CharField(
        max_length = 100,
        verbose_name = "Passing Attempts",
        blank=True,
        null=True
        )

Use blank=True, null=True

class PlayerStat(models.Model):
    player = models.ForeignKey(Player)

    rushing_attempts = models.CharField(
        max_length = 100,
        verbose_name = "Rushing Attempts",
        blank=True,
        null=True
        )
    rushing_yards = models.CharField(
        max_length = 100,
        verbose_name = "Rushing Yards",
        blank=True,
        null=True
        )
    rushing_touchdowns = models.CharField(
        max_length = 100,
        verbose_name = "Rushing Touchdowns",
        blank=True,
        null=True
        )
    passing_attempts = models.CharField(
        max_length = 100,
        verbose_name = "Passing Attempts",
        blank=True,
        null=True
        )

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千秋岁 2024-12-10 14:24:49

如果该字段在模型级别设置为空白，则实际上意味着允许空字符串。空字符串和 null 实际上不是同一件事。不要仅仅因为框架设置了一些不好的默认功能而破坏数据完整性。

不要设置空白，而是重写 get_form 方法：

    def get_form(self, request, obj=None, **kwargs):
        form = super().get_form(request, obj, **kwargs)
        form.base_fields["rushing_attempts"].required = False

If the field is set blankable in model level, it really means empty string are allowed. An empty string and a null really aren't the same thing. Don't break your data integrity only because the framework has set some bad default features.

Instead of setting the blank, override the get_form -method:

    def get_form(self, request, obj=None, **kwargs):
        form = super().get_form(request, obj, **kwargs)
        form.base_fields["rushing_attempts"].required = False

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