Class: Forms::Validations::ManualRules

Inherits:
Object
  • Object
show all
Defined in:
lib/forms/validations/manual_rules.rb

Overview

Accepts an inline rules hash and produces the same data-* hash shape that Introspector#data_attributes_for returns. Used when a caller wants client-side validation on a form not backed by an ActiveModel object (e.g. plain form objects, marketplace submissions that bypass the model in test setup, etc.).

Supported shape:

ManualRules.new(
length: { maximum: 60, minimum: 3 },
presence: true,
format: { with: /\A[a-z]+\z/i },
numericality: { greater_than_or_equal_to: 0 },
inclusion: { in: %w[a b c] },
exclusion: { in: %w[admin] },
confirmation: true,
acceptance: true,
)

Instance Method Summary collapse

Constructor Details

#initialize(rules) ⇒ ManualRules

Returns a new instance of ManualRules.



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# File 'lib/forms/validations/manual_rules.rb', line 24

def initialize(rules)
  @rules = rules
end

Instance Method Details

#data_attributes ⇒ Object 



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# File 'lib/forms/validations/manual_rules.rb', line 28

def data_attributes
  # Build a tiny ad-hoc model whose validators reproduce the
  # rules, then delegate to the Introspector. Saves us
  # reimplementing the per-validator → data-attr conversion in
  # two places.
  klass = build_adhoc_model
  Introspector.new(klass).data_attributes_for(:value)
end