Class: Rbdantic::Validators::ModelValidator

Inherits:
Object
  • Object
show all
Defined in:
lib/rbdantic/validators/model_validator.rb

Overview

Decorator for model-level validators Usage:

model_validator mode: :before do |data|
data[:email] = data[:email]&.downcase
data
end

Constant Summary collapse

MODES = 
i[before after].freeze

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(mode: :after, &block) ⇒ ModelValidator

Returns a new instance of ModelValidator.



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# File 'lib/rbdantic/validators/model_validator.rb', line 16

def initialize(mode: :after, &block)
  @mode = validate_mode!(mode)
  @validator_proc = block
end

Instance Attribute Details

#mode ⇒ Object (readonly)

Returns the value of attribute mode.



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# File 'lib/rbdantic/validators/model_validator.rb', line 14

def mode
  @mode
end

#validator_proc ⇒ Object (readonly)

Returns the value of attribute validator_proc.



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# File 'lib/rbdantic/validators/model_validator.rb', line 14

def validator_proc
  @validator_proc
end

Instance Method Details

#call(data) ⇒ Hash

Execute the :before validator, which receives and must return a Hash. Only valid to call when mode == :before.

Parameters:

  • data (Hash) —

    the input data

Returns:

  • (Hash) —

    modified data



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# File 'lib/rbdantic/validators/model_validator.rb', line 25

def call(data)
  @validator_proc.call(data)
end

#validate(model_instance) ⇒ Array<ErrorDetail>

Run validation and collect errors

Parameters:

  • model_instance —

    the model instance (for after mode)

Returns:



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# File 'lib/rbdantic/validators/model_validator.rb', line 32

def validate(model_instance)
  errors = []

  begin
    @validator_proc.call(model_instance)
  rescue StandardError => e
    errors << ErrorDetail.new(
      type: :model_validation_failed,
      loc: [],
      msg: e.message,
      input: nil
    )
  end

  errors
end