Module: AttachmentMagic::ClassMethods

Defined in:
lib/attachment_magic.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.extended(base) ⇒ Object 



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# File 'lib/attachment_magic.rb', line 120

def self.extended(base)
  base.class_attribute :attachment_options
  base.before_validation :set_size_from_temp_path
  base.after_save :after_process_attachment
  base.after_destroy :destroy_file
  base.after_validation :process_attachment
end

Instance Method Details

#copy_to_temp_file(file, temp_base_name) ⇒ Object

Copies the given file path to a new tempfile, returning the closed tempfile.



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# File 'lib/attachment_magic.rb', line 129

def copy_to_temp_file(file, temp_base_name)
  Tempfile.new(temp_base_name, AttachmentMagic.tempfile_path).tap do |tmp|
    tmp.close
    FileUtils.cp file, tmp.path
  end
end

#image?(content_type) ⇒ Boolean

Returns true or false if the given content type is recognized as an image.

Returns:

  • (Boolean) 


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# File 'lib/attachment_magic.rb', line 116

def image?(content_type)
  content_types.include?(content_type)
end

#validates_as_attachment ⇒ Object

Performs common validations for attachment models.



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# File 'lib/attachment_magic.rb', line 110

def validates_as_attachment
  validates_presence_of :size, :content_type, :filename
  validate              :attachment_attributes_valid?
end

#write_to_temp_file(data, temp_base_name) ⇒ Object

Writes the given data to a new tempfile, returning the closed tempfile.



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# File 'lib/attachment_magic.rb', line 137

def write_to_temp_file(data, temp_base_name)
  Tempfile.new(temp_base_name, AttachmentMagic.tempfile_path).tap do |tmp|
    tmp.binmode
    tmp.write data
    tmp.close
  end
end