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10 changes: 6 additions & 4 deletions lib/cancan/config.rb
Original file line number Diff line number Diff line change
Expand Up @@ -88,12 +88,14 @@ def self.with_accessible_by_strategy(value)
end
end

def self.validate_accessible_by_strategy!(value)
return if valid_accessible_by_strategies.include?(value)

raise ArgumentError, "accessible_by_strategy must be one of #{valid_accessible_by_strategies.join(', ')}"
def self.validate_accessible_by_strategy!(value)
unless value < CanCan::ModelAdapters::Strategies::Base
raise ArgumentError, "Invalid strategy: #{value}. It should extend CanCan::ModelAdapters::Strategies::Base."
end

return if valid_accessible_by_strategies.include?(value)
end

def self.does_not_support_subquery_strategy?
!defined?(CanCan::ModelAdapters::ActiveRecordAdapter) ||
CanCan::ModelAdapters::ActiveRecordAdapter.version_lower?('5.0.0')
Expand Down