Module: Archipelago::ParamsDSL

Included in:
Action
Defined in:
lib/archipelago/params_dsl.rb

Defined Under Namespace

Modules: ClassMethods Classes: ParamDefinition

Constant Summary collapse

MISSING = 
Object.new.freeze

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(base) ⇒ Object 



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# File 'lib/archipelago/params_dsl.rb', line 60

def self.included(base)
  base.extend(ClassMethods)
end

Instance Method Details

#coerce_declared_params(raw_params) ⇒ Object 



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# File 'lib/archipelago/params_dsl.rb', line 64

def coerce_declared_params(raw_params)
  coerced = {}
  errors = Hash.new { |hash, key| hash[key] = [] }

  self.class.param_definitions.each_value do |definition|
    raw_value = fetch_param(raw_params, definition.name)

    if definition.empty_as_nil && empty_string?(raw_value)
      raw_value = nil
    end

    if blank_value?(raw_value)
      if definition.default != MISSING
        coerced[definition.name] = definition.default.respond_to?(:call) ? definition.default.call : definition.default
      elsif definition.required
        errors[definition.name.to_s] << "is required"
      end

      next
    end

    begin
      coerced_value = coerce_value(raw_value, definition)
      validation_error = run_validations(coerced_value, definition)
      if validation_error
        errors[definition.name.to_s] << validation_error
      else
        coerced[definition.name] = coerced_value
      end
    rescue ArgumentError, TypeError, JSON::ParserError
      errors[definition.name.to_s] << "is invalid"
    end
  end

  [coerced, errors]
end