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# frozen_string_literal: true
module API
module Validations
class CheckAssigneesCount < Grape::Validations::Base
def self.coerce
lambda do |value|
case value
when String
[value]
when Array
value
when CheckAssigneesCount
value
else
[]
end
end
end
def validate_param!(attr_name, params)
unless param_allowed?(attr_name, params)
raise Grape::Exceptions::Validation,
params: [@scope.full_name(attr_name)],
message: "allows one value, but found #{params[attr_name].size}: #{params[attr_name].join(", ")}"
end
end
private
def param_allowed?(attr_name, params)
params[attr_name].size <= 1
end
end
end
end
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