Class: PostImageManager

Inherits:
Object
  • Object
show all
Includes:
Singleton
Defined in:
lib/models/post_image_manager.rb

Overview

A singleton class for managing all image attachments for a post

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ PostImageManager

The constructor for PostImageManager which initializes the array of Carrierware image uploaders to use when submiting a post and the array of downloaded images



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# File 'lib/models/post_image_manager.rb', line 17

def initialize
  @uploaders = []
  @downloaded_images = []
  @root_dir = ''
end

Instance Attribute Details

#downloaded_images ⇒ Object (readonly)

Returns the value of attribute downloaded_images.



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# File 'lib/models/post_image_manager.rb', line 11

def downloaded_images
  @downloaded_images
end

#root_dir ⇒ Object

Returns the value of attribute root_dir.



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# File 'lib/models/post_image_manager.rb', line 12

def root_dir
  @root_dir
end

#uploaders ⇒ Object (readonly)

Returns the value of attribute uploaders.



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# File 'lib/models/post_image_manager.rb', line 10

def uploaders
  @uploaders
end

Instance Method Details

#add_downloaded_image(downloaded_image) ⇒ Object

Adds an image that was downloaded from the Jekyll website repo

Params:

downloaded_image

A PostImage object representing the downloaded image



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# File 'lib/models/post_image_manager.rb', line 40

def add_downloaded_image(downloaded_image)
  @downloaded_images << downloaded_image
end

#add_file(file) ⇒ Object

Adds an image to be uploaded in a Jekyll website post

Params:

file

A ActionDispatch::Http::UploadedFile object containing the file to be used in a post



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# File 'lib/models/post_image_manager.rb', line 28

def add_file(file)
  uploader_to_add = PostImageUploader.new
  uploader_to_add.cache!(file)
  @uploaders.delete_if { |x| x.filename == file.original_filename }
  @uploaders << uploader_to_add
end

#clear ⇒ Object

Clears the manager of all currently exisiting image uploaders and delete’s their cache directories. Also clears the manager of all of the downloaded images



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# File 'lib/models/post_image_manager.rb', line 47

def clear
  @uploaders.each do |uploader|
    full_preview_path = "#{@root_dir}/public/uploads/tmp/#{uploader.preview.cache_name}"
    cache_dir = File.expand_path('..', full_preview_path)
    uploader.remove!
    Dir.delete(cache_dir)
  end

  @uploaders.clear
  @downloaded_images.clear
end