Module: Core::Models::Concerns::MimeTypable::ClassMethods

Defined in:
lib/core/models/concerns/mime_typable.rb

Overview

Submodule holding all the static methods add to the current subclass.

Author:

Instance Method Summary collapse

Instance Method Details

#mime_type(values) ⇒ Object

Defines the MIME type attribute with the given possible MIME types.

Parameters:

  • values (Array<String>) —

    the possible MIME types, * can be used as wild cards.



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# File 'lib/core/models/concerns/mime_typable.rb', line 14

def mime_type(values)

  # @!attribute [rw] mime_type
  #   @return [String] the MIME type of the file, obtained from the uploaded file.
  field :mime_type, type: String
        
  validates :mime_type, presence: {message: 'required'}

  validate :mime_type_validity, if: :mime_type?

  # Validates the validity of the MIME type by checking if it respects any of the given mime types.
  # If it does not respect any MIME types possible, it adds an error to the mime_type field and invalidates.
  define_method :mime_type_validity do
    checked_types = if values.is_a? Symbol
      self.send(values) rescue []
    else
      values
    end
    return true if checked_types.empty?
    checked_types.each do |type|
      type_regex = ::Regexp.new("^#{type.sub(/\*/, '(.+)')}$")
      return true if !type_regex.match(mime_type).nil?
    end
    errors.add(:mime_type, 'pattern')
  end
end