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# frozen_string_literal: true
module Grape
module Validations
class AttributesIterator
include Enumerable
attr_reader :scope
def initialize(validator, scope, params)
@scope = scope
@attrs = validator.attrs
@original_params = scope.params(params)
@params = Array.wrap(@original_params)
end
def each(&block)
do_each(@params, &block) # because we need recursion for nested arrays
end
private
def do_each(params_to_process, parent_indicies = [], &block)
params_to_process.each_with_index do |resource_params, index|
# when we get arrays of arrays it means that target element located inside array
# we need this because we want to know parent arrays indicies
if resource_params.is_a?(Array)
do_each(resource_params, [index] + parent_indicies, &block)
next
end
if @scope.type == Array
next unless @original_params.is_a?(Array) # do not validate content of array if it isn't array
# fill current and parent scopes with correct array indicies
parent_scope = @scope.parent
parent_indicies.each do |parent_index|
parent_scope.index = parent_index
parent_scope = parent_scope.parent
end
@scope.index = index
end
yield_attributes(resource_params, @attrs, &block)
end
end
def yield_attributes(_resource_params, _attrs)
raise NotImplementedError
end
# This is a special case so that we can ignore tree's where option
# values are missing lower down. Unfortunately we can remove this
# are the parameter parsing stage as they are required to ensure
# the correct indexing is maintained
def skip?(val)
val == Grape::DSL::Parameters::EmptyOptionalValue
end
end
end
end
Version data entries
12 entries across 12 versions & 1 rubygems