Strange code investigate .. potentially allows to render data provider user has no access to

[MontrealSergiy]

Showing /home/users/sboroday/cbrain/BrainPortal/app/views/shared/_show_table.html.erb where line #27 raised:

The single-table inheritance mechanism failed to locate the subclass: 'DataladDataProvider'. This error is raised because the column 'type' is reserved for storing the class in case of inheritance. Please rename this column if you didn't intend it to be used for storing the inheritance class or overwrite DataProvider.inheritance_column to use another column for that information.
Extracted source (around line aces#192):
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end
data_providers = options[:data_providers] || DataProvider.find_all_accessible_by_user(current_user)
data_providers = data_providers.all.to_a if data_providers.is_a?(ActiveRecord::Relation)

if selector.respond_to?(:data_provider_id)
  selected = selector.data_provider_id.to_s