metamaps--metamaps/app/policies/topic_policy.rb

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class TopicPolicy < ApplicationPolicy
class Scope < Scope
def resolve
visible = %w(public commons)
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permission = 'topics.permission IN (?)'
if user
scope.where(permission + ' OR topics.defer_to_map_id IN (?) OR topics.user_id = ?', visible, user.shared_maps.map(&:id), user.id)
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else
scope.where(permission, visible)
end
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end
end
def create?
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user.present?
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end
def show?
if record.defer_to_map.present?
map_policy.show?
else
record.permission == 'commons' || record.permission == 'public' || record.user == user
end
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end
def update?
if !user.present?
false
elsif record.defer_to_map.present?
map_policy.update?
else
record.permission == 'commons' || record.user == user
end
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end
def destroy?
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record.user == user || admin_override
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end
def autocomplete_topic?
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user.present?
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end
def network?
show?
end
def relative_numbers?
show?
end
def relatives?
show?
end
# Helpers
def map_policy
@map_policy ||= Pundit.policy(user, record.defer_to_map)
end
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end