Placeholder outside of CMS Permissions issue

I am building an application that uses the PlaceholderField in a model, but cannot seem to get the permissions working correctly. According to the documentation:

Permissions To be able to edit a placeholder user must be a staff member and needs either edit permissions on the model that contains the PlaceholderField, or permissions for that specific instance of that model. Required permissions for edit actions are:

• to add: require add or change permission on related Model or instance.
• to change: require add or change permission on related Model or instance.
• to delete: require add or change or delete permission on related Model or instance.

So I built my model:

class UserProfile(models.Model):
    user = models.OneToOneField(User, related_name='user_profile')
    address = models.CharField(max_length=55, blank=True, null=True,
                                                   help_text="Home Address, ex: 111 Street Addr")
     address2 = models.CharField(max_length=55, blank=True, null=True,
                                                      help_text="City, State Zip Code")
    phone = models.CharField(max_length=12, blank=True, null=True)
    facebook = models.URLField(blank=True, null=True)
    twitter = models.URLField(blank=True, null=True)
    google_plus = models.URLField(blank=True, null=True)
    user_info_placeholder = PlaceholderField('UserInfoPlaceholder',
                                                                         related_name='userinfoplaceholder')
    timeline = PlaceholderField('TimelinePlaceholder', related_name='timeline')

Added a view:

class UserProfileDetailView(DetailView):
    context_object_name = 'user_information'
    model = User
    slug_field = 'username'
    template_name = 'home_page.html'

And logged in as the user, however no ‘Structure/Content’ button appeared on the toolbar. To check I logged in as a superuser and the button showed. So I changed the users “User Permissions” and added everything just to be sure, but still not ‘Structure/Content’ button.

Any suggestions?

[patchwork-systems]

@czpython I just checked this solution in my code and that was the problem. Once I added PlaceholderAdminMixin everything started working! Thanks for the fix!

[czpython]

I believe this is both a validation and documentation problem. I can reproduce the issue only if the admin class for the object that has the PlaceholderField does not subclass from PlaceholderAdminMixin.

Will open a new ticket for the documentation issue and close this one for https://github.com/divio/django-cms/issues/3734