Module: StructuredParams::Validations

Extended by:
ActiveSupport::Concern
Included in:
Params
Defined in:
lib/structured_params/validations.rb,
sig/structured_params/validations.rbs

Overview

Provides validates_raw which validates raw parameter values before type casting.

Internally delegates to ActiveModel's validates on the _before_type_cast attribute, then remaps errors back to the original attribute name. This means all standard ActiveModel validators (format, numericality, etc.) work as-is on the raw input value.

Example:

class UserParams < StructuredParams::Params
attribute :age, :integer
validates_raw :age, format: { with: /\A\d+\z/, message: 'must be numeric string' }
end

params = UserParams.new(age: "abc")
params.valid?            # => false
params.errors[:age]      # => ["must be numeric string"]

Defined Under Namespace

Modules: ClassMethods

Instance Method Summary collapse

Instance Method Details

#validates_raw_remap_errors ⇒ void

This method returns an undefined value.

: () -> void



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# File 'lib/structured_params/validations.rb', line 63

def validates_raw_remap_errors
  self.class.validates_raw_btc_map.each do |attr, btc|
    next if errors.where(btc).none?

    errors.where(btc).dup.each { |e| errors.import(e, attribute: attr) }
    errors.delete(btc)
  end
end