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Contents
require 'hanami/utils/hash'
module Hanami
module Helpers
module FormHelper
# Values from params and form helpers.
#
# It's responsible to populate input values with data coming from params
# and inline values specified via form helpers like `text_field`.
#
# @since 0.2.0
# @api private
class Values
# @since 0.2.0
# @api private
GET_SEPARATOR = '.'.freeze
# @since 0.2.0
# @api private
def initialize(values, params)
@values = Utils::Hash.symbolize(values || {})
@params = params
end
# Returns the value (if present) for the given key.
# Nested values are expressed with an array if symbols.
#
# @since 0.2.0
# @api private
def get(*keys)
_get_from_params(*keys) || _get_from_values(*keys)
end
private
# @since 0.5.0
# @api private
def _get_from_params(*keys)
keys.map! { |key| key.to_s =~ /\A\d+\z/ ? key.to_s.to_i : key }
@params.dig(*keys)
end
# @since 0.2.0
# @api private
def _get_from_values(*keys)
head, *tail = *keys
result = @values[head]
tail.each do |k|
break if result.nil?
result = _dig(result, k)
end
result
end
# @since 1.0.0
# @api private
def _dig(base, key)
case base
when Utils::Hash, ::Hash then base[key]
when Array then base[key.to_s.to_i]
when ->(r) { r.respond_to?(key) } then base.public_send(key)
end
end
end
end
end
end
Version data entries
15 entries across 15 versions & 1 rubygems