django - 在 django admin 中隐藏 "add", "change", "delete" Action

Question

我有一段代码是这样的:

class PlatformEnvInLine(admin.TabularInline):
    model = PlatformEnv
    extra = 1
    classes = ['collapse']
    fields = ('environment',)

我的 PlatformEnv 模型如下所示:

class PlatformEnv(models.Model):
    id = models.AutoField(db_column='ID', primary_key=True)
    ...
    environment =  models.ForeignKey(Environment, models.DO_NOTHING, db_column='Environment_ID', blank=True, null=True)

现在显示 PlatformEnvInLin 时，您可以通过下拉菜单选择一个环境。但是在下拉菜单旁边显示了用于添加、更改或删除环境的按钮。如何隐藏这些按钮？

Answer 1

您应该能够通过覆盖 formfield_for_dbfield 方法来做到这一点。

class PlatformEnvInLine(admin.TabularInline):
    model = PlatformEnv
    extra = 1
    classes = ['collapse']
    fields = ('environment',)

    def formfield_for_dbfield(self, db_field, request, **kwargs):
        formfield = super().formfield_for_dbfield(db_field, request, **kwargs)
        if db_field.name == 'environment':
            formfield.widget.can_add_related = False
            formfield.widget.can_change_related = False
            formfield.widget.can_delete_related = False
       return formfield