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module Avo
module Concerns
module ChecksAssocAuthorization
extend ActiveSupport::Concern
# Ex: A Post has many Comments
def authorize_association_for(policy_method)
policy_result = true
if @reflection.present?
# Fetch the appropiate resource
reflection_resource = field.resource
# Fetch the record
# Hydrate the resource with the record if we have one
reflection_resource.hydrate(record: @parent_record) if @parent_record.present?
# Use the related_name as the base of the association
association_name = @reflection.name
if association_name.present?
method_name = :"#{policy_method}_#{association_name}?".to_sym
# Use the policy methods from the parent (Post)
service = reflection_resource.authorization
if service.has_method?(method_name, raise_exception: false)
# Some policy methods should get the parent record in order to have the necessarry information to do the authorization
# Example: Post->has_many->Comments
#
# When you want to authorize the creation/attaching of a Comment, you don't have the Comment instance.
# But you do have the Post instance and you can get that in your policy to authorize against.
parent_policy_methods = [:view, :create, :attach, :act_on]
record = if parent_policy_methods.include?(policy_method)
# Use the parent record (Post)
reflection_resource.record
else
# Override the record with the child record (Comment)
resource.record
end
policy_result = service.authorize_action(method_name, record: record, raise_exception: false)
end
end
end
policy_result
end
end
end
end
Version data entries
15 entries across 15 versions & 1 rubygems