Module: CustomValidations

Defined in:
lib/vex/active_record/custom_validations.rb

Defined Under Namespace

Modules: Etest

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.invalid_parsed?(value, opts, &block) ⇒ Boolean

custom pared.

Returns:

  • (Boolean)

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# File 'lib/vex/active_record/custom_validations.rb', line 39

def self.invalid_parsed?(value, opts, &block)
  return if value.nil? && opts[:allow_nil]

  begin
    value = yield(value)
  rescue
    return $!.to_s
  end

  return "must be in #{opts[:in].inspect}"            if opts[:in] && !opts[:in].include?(value)
  return "Must be greater than #{opts[:gt].inspect}"  if opts[:gt] && !(value > opts[:gt])
  return "Must be >= #{opts[:ge].inspect}"            if opts[:ge] && !(value >= opts[:ge])
  return "Must be less than #{opts[:gt].inspect}"     if opts[:lt] && !(value < opts[:lt])
  return "Must be <= #{opts[:ge].inspect}"            if opts[:le] && !(value <= opts[:le])
end

.invalid_url?(url, opts = {}) ⇒ Boolean

Returns:

  • (Boolean)

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# File 'lib/vex/active_record/custom_validations.rb', line 15

def self.invalid_url?(url, opts = {})
  return if url.respond_to?(:blank?) && url.blank? && opts[:allow_nil]

  uri = url.is_a?(URI) ? url : URI.parse(url)

  if !uri.scheme
    return "Missing URI protocol"
  end

  schemes = [ opts[:scheme] || %w(http https) ].flatten.compact 

  return if schemes.include?(:any) || schemes.empty?

  if !schemes.include?(uri.scheme)
    return "Unsupported protocol #{uri.scheme.inspect}, must be one of #{schemes.join(", ")}"
  end
rescue URI::InvalidURIError
  return $!.to_s
end

Instance Method Details

#validates_float(*args) ⇒ Object


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# File 'lib/vex/active_record/custom_validations.rb', line 79

def validates_float(*args)
  validates_parsed(*args) { |value| Float(value) }
end

#validates_integer(*args) ⇒ Object


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# File 'lib/vex/active_record/custom_validations.rb', line 75

def validates_integer(*args)
  validates_parsed(*args) { |value| Integer(value) }
end

#validates_parsed(*args, &block) ⇒ Object


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# File 'lib/vex/active_record/custom_validations.rb', line 55

def validates_parsed(*args, &block)
  opts = args.extract_options!

  validates_each(args, opts) do |r, attr, value|
    msg = CustomValidations.invalid_parsed?(value, opts, &block)
    r.errors.add attr, msg if msg
    !msg
  end
end

#validates_texta(*args) ⇒ Object


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# File 'lib/vex/active_record/custom_validations.rb', line 65

def validates_texta(*args)
  validates_parsed(*args) { |value|
    begin
      value.texta
    rescue Texta::Error
      raise "I do not understand: '#{$!.to_s}'"
    end
  }
end

#validates_url(*args) ⇒ Object


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# File 'lib/vex/active_record/custom_validations.rb', line 2

def validates_url(*args)
  opts = { 
    :scheme => %w(http https) 
  }.update(args.extract_options!)
 
  validates_each(args, opts) do |r, attr, value|
    next unless msg = CustomValidations.invalid_url?(value, opts)
    r.errors.add(attr, msg)

    false
  end
end