Class: Ree::Contracts::ArrayValidator

Inherits:
BaseValidator show all
Defined in:
lib/ree/contracts/validators/array_validator.rb

Instance Attribute Summary collapse

Attributes inherited from BaseValidator

#contract

Instance Method Summary collapse

Methods included from Truncatable

#truncate

Constructor Details

#initialize(contract) ⇒ ArrayValidator

Returns a new instance of ArrayValidator.



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# File 'lib/ree/contracts/validators/array_validator.rb', line 7

def initialize(contract)
  super(contract)
  @validators = contract.map { |cont| Validators.fetch_for(cont) }
end

Instance Attribute Details

#validators ⇒ Object (readonly)

Returns the value of attribute validators.



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# File 'lib/ree/contracts/validators/array_validator.rb', line 5

def validators
  @validators
end

Instance Method Details

#call(value) ⇒ Object 



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# File 'lib/ree/contracts/validators/array_validator.rb', line 16

def call(value)
  return false unless value.is_a?(Array) && value.length == validators.length

  value.zip(validators).all? do |val, validator|
    validator.call(val)
  end
end

#message(value, name, lvl = 1) ⇒ Object 



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# File 'lib/ree/contracts/validators/array_validator.rb', line 24

def message(value, name, lvl = 1)
  unless value.is_a?(Array)
    return "expected Array, got #{value.class} => #{truncate(value.inspect)}"
  end

  unless value.length == validators.length
    return "expected to have #{validators.length} #{pluralize(validators.length, 'item', 'items')}, got #{value.length} #{pluralize(value.length, 'item', 'items')} => #{truncate(value.inspect)}"
  end

  errors = []
  sps = "  " * lvl

  value.zip(validators).each_with_index do |(val, validator), idx|
    next if validator.call(val)

    msg = validator.message(val, "#{name}[#{idx}]", lvl + 1)
    errors << "\n\t#{sps} - #{name}[#{idx}]: #{msg}"

    if errors.size > 3
      errors << "\n\t#{sps} - ..."
      break
    end
  end

  errors.join
end

#to_s ⇒ Object 



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# File 'lib/ree/contracts/validators/array_validator.rb', line 12

def to_s
  "[#{validators.map(&:to_s).join(', ')}]"
end