Class: AttachmentUploader

Inherits:
CarrierWave::Uploader::Base
  • Object
show all
Includes:
CarrierWave::MimeTypes, CarrierWave::MiniMagick
Defined in:
app/uploaders/attachment_uploader.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.valid_versions ⇒ Object 


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# File 'app/uploaders/attachment_uploader.rb', line 144

def self.valid_versions
  [:thumb, :medium, :video_thumb]
end

Instance Method Details

#cache_dir ⇒ Object 


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# File 'app/uploaders/attachment_uploader.rb', line 26

def cache_dir
  # model.id || raise('Model has no id. But need one to save the file.')
  # "#{Rails.root}/tmp/uploads/#{Rails.env}_env/#{model.class.to_s.underscore}s/#{model.id}"
  Rails.root || raise('no rails root')
  Rails.env || raise('no rails env')
  "#{Rails.root}/tmp/uploads/#{Rails.env}_env/"
end

#cover ⇒ Object

This method filteres out all pages except for the cover page. This is used when making a thumbnail for pdf files. pdf files can have several pages, but only the first page should be used for the thumbnail, not one thumbnail for each page.


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# File 'app/uploaders/attachment_uploader.rb', line 93

def cover 
  manipulate! do |frame, index|
    frame if (not index) || index.zero?
  end
end

#filetitle ⇒ Object 


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# File 'app/uploaders/attachment_uploader.rb', line 139

def filetitle
  File.basename(to_s)
end

#image?(new_file) ⇒ Boolean

Returns:

  • (Boolean) 

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# File 'app/uploaders/attachment_uploader.rb', line 85

def image?( new_file )
  new_file && new_file.content_type.present? && new_file.content_type.include?('image')
end

#image_or_pdf?(new_file) ⇒ Boolean

version :video_thumb, :if => :video? do

process :create_video_thumb
process :set_content_type => [ "image/jpeg" ]
def full_filename( for_file = model.attachment.file )
  "video-thumb.jpg"
end

end

def video?( new_file )

new_file.content_type.include?('video')

end

Returns:

  • (Boolean) 

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# File 'app/uploaders/attachment_uploader.rb', line 80

def image_or_pdf?( new_file )
  new_file && new_file.content_type.present? && 
    (new_file.content_type.include?('image') || new_file.content_type.include?('pdf'))
end

#modify_content_type(*args) ⇒ Object 


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# File 'app/uploaders/attachment_uploader.rb', line 99

def modify_content_type( *args )
  type = args[0] || "image/png"
  self.file.instance_variable_set( :@content_type, type )
end

#store_dir ⇒ Object

Override the directory where uploaded files will be stored. This is a sensible default for uploaders that are meant to be mounted:


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# File 'app/uploaders/attachment_uploader.rb', line 22

def store_dir
  model.id || raise('Model has no id. But need one to save the file.')
  "#{Rails.root}/uploads/#{Rails.env}_env/#{model.class.to_s.underscore}s/#{model.id}"
end

#url(version = nil) ⇒ Object

Override the filename of the uploaded files: Avoid using model.id or version_name here, see uploader/store.rb for details. def filename

"original.#{model.attachment.file.extension}" if original_filename

end


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# File 'app/uploaders/attachment_uploader.rb', line 126

def url(version = nil)
  model.id || raise('Model has no id.')
  if version
    filename = self.send(version).current_path
  else
    filename = self.current_path
  end
  filename || raise('No filename.')
  extension = File.extname(filename).gsub(/^./, '')
  basename = File.basename(filename).gsub(/.#{extension}$/, '')
  Rails.application.routes.url_helpers.attachment_download_path(id: model.id, basename: basename, extension: extension, version: version )
end