id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
33907	UniqueConstraints voided when using GenericTabularInline	Mohamed Alnahhas	nobody	"Using Uniquecontraints, I get an error that the object already exist when I create a new object in the Skill_level admin page. However creating the same object through GenericTabularInline gives no errors and the creation is successful when it should not be. So basically Useconstraints is not working at all with GenericTabularInline

Generic field model:
{{{
class Skill_level(models.Model):
    level = models.IntegerField(default=1)
    user = models.ForeignKey(User, related_name=""skill_level"",on_delete=models.CASCADE)
    content_type = models.ForeignKey(ContentType, on_delete=models.CASCADE)
    object_id = models.PositiveBigIntegerField()
    content_object = GenericForeignKey(""content_type"", ""object_id"")

        
    class Meta:
        indexes = [
            models.Index(fields=[""content_type"", ""object_id""]),
        ]
        constraints = [
            UniqueConstraint(fields=['user','content_type', 'object_id'], name='unique_object')
        ]
}}}


Generic relation model:

{{{
class Subject(models.Model):
    title = models.CharField(max_length=100)
    skill_level = GenericRelation(Skill_level, related_query_name=""subject"")

    def __str__(self):
        return f""{self.title}""
}}}

Admin.py:

{{{
class Skill_levelInline(GenericTabularInline):
    model = Skill_level
    extra = 0

class Skill_levelAdmin(admin.ModelAdmin):
    model = Skill_level
    fields = ['user', 'level', 'contnet_type', 'object_id', 'content_object']
    readonly_fields = [""content_object""]

class SubjectAdmin(admin.ModelAdmin):
    inlines = [Skill_levelInline]
    extra = 0

admin.site.register(Skill_level)
admin.site.register(Subject, SubjectAdmin)
}}}
"	Bug	closed	contrib.contenttypes	4.1	Normal	needsinfo		Mohamed Alnahhas	Unreviewed	0	0	0	0	0	0