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# frozen_string_literal: true
require 'erb'
module HTTParty
module HashConversions
# @return <String> This hash as a query string
#
# @example
# { name: "Bob",
# address: {
# street: '111 Ruby Ave.',
# city: 'Ruby Central',
# phones: ['111-111-1111', '222-222-2222']
# }
# }.to_params
# #=> "name=Bob&address[city]=Ruby Central&address[phones][]=111-111-1111&address[phones][]=222-222-2222&address[street]=111 Ruby Ave."
def self.to_params(hash)
hash.to_hash.map { |k, v| normalize_param(k, v) }.join.chop
end
# @param key<Object> The key for the param.
# @param value<Object> The value for the param.
#
# @return <String> This key value pair as a param
#
# @example normalize_param(:name, "Bob Jones") #=> "name=Bob%20Jones&"
def self.normalize_param(key, value)
normalized_keys = normalize_keys(key, value)
normalized_keys.flatten.each_slice(2).inject(''.dup) do |string, (k, v)|
string << "#{ERB::Util.url_encode(k)}=#{ERB::Util.url_encode(v.to_s)}&"
end
end
def self.normalize_keys(key, value)
stack = []
normalized_keys = []
if value.respond_to?(:to_ary)
if value.empty?
normalized_keys << ["#{key}[]", '']
else
normalized_keys = value.to_ary.flat_map do |element|
normalize_keys("#{key}[]", element)
end
end
elsif value.respond_to?(:to_hash)
stack << [key, value.to_hash]
else
normalized_keys << [key.to_s, value]
end
stack.each do |parent, hash|
hash.each do |child_key, child_value|
if child_value.respond_to?(:to_hash)
stack << ["#{parent}[#{child_key}]", child_value.to_hash]
elsif child_value.respond_to?(:to_ary)
child_value.to_ary.each do |v|
normalized_keys << normalize_keys("#{parent}[#{child_key}][]", v).flatten
end
else
normalized_keys << normalize_keys("#{parent}[#{child_key}]", child_value).flatten
end
end
end
normalized_keys
end
end
end
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