Class: CadmusFiles::FileUrlTag

Inherits:
Liquid::Tag
  • Object
show all
Defined in:
lib/cadmus_files/file_url_tag.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(tag_name, args, tokens) ⇒ FileUrlTag

Returns a new instance of FileUrlTag.



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# File 'lib/cadmus_files/file_url_tag.rb', line 7

def initialize(tag_name, args, tokens)
  super
  @filename = args.strip.gsub(/\A([\"\'])(.*)\1\z/, '\2')
end

Instance Attribute Details

#filename ⇒ Object (readonly)

Returns the value of attribute filename.



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# File 'lib/cadmus_files/file_url_tag.rb', line 5

def filename
  @filename
end

Instance Method Details

#render(context) ⇒ Object 



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# File 'lib/cadmus_files/file_url_tag.rb', line 12

def render(context)
  file_model = CadmusFiles.file_model

  unless file_model
    return "Error: CadmusFiles.file_model not set.  Please set it to your file model in an initializer."
  end

  cache = context.registers[:cached_files] || {}
  cms_file = cache[filename]
  unless cms_file
    parent = context.registers['parent']
    cms_file = file_model.find_by(file_model.cadmus_file_field => filename, parent: parent)
    unless cms_file
      return "Error: file #{filename} not found"
    end
  end

  cms_file.file.url
end