class Hanami::Helpers::FormHelper::Values

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

Constants

GET_SEPARATOR

@since 0.2.0 @api private

Public Class Methods

new(values, params) click to toggle source

@since 0.2.0 @api private

# File lib/hanami/helpers/form_helper/values.rb, line 20
def initialize(values, params)
  @values = Utils::Hash.symbolize(values || {})
  @params = params
end

Public Instance Methods

get(*keys) click to toggle source

Returns the value (if present) for the given key. Nested values are expressed with an array if symbols.

@since 0.2.0 @api private

# File lib/hanami/helpers/form_helper/values.rb, line 30
def get(*keys)
  _get_from_params(*keys) || _get_from_values(*keys)
end

Private Instance Methods

_dig(base, key) click to toggle source

@since 1.0.0 @api private

# File lib/hanami/helpers/form_helper/values.rb, line 60
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
_get_from_params(*keys) click to toggle source

@since 0.5.0 @api private

# File lib/hanami/helpers/form_helper/values.rb, line 38
def _get_from_params(*keys)
  keys.map! { |key| key.to_s =~ /\A\d+\z/ ? key.to_s.to_i : key }
  @params.dig(*keys)
end
_get_from_values(*keys) click to toggle source

@since 0.2.0 @api private

# File lib/hanami/helpers/form_helper/values.rb, line 45
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