Class: LinkThumbnailer::Scrapers::Base

Inherits:
SimpleDelegator
  • Object
show all
Defined in:
lib/link_thumbnailer/scrapers/base.rb

Direct Known Subclasses

Default::Base, Opengraph::Base

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(document, website = nil) ⇒ Base

Returns a new instance of Base.



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# File 'lib/link_thumbnailer/scrapers/base.rb', line 15

def initialize(document, website = nil)
  @config   = ::LinkThumbnailer.page.config
  @document = document
  @website  = website

  super(config)
end

Instance Attribute Details

#attribute_name ⇒ Object (readonly)

Returns the value of attribute attribute_name.



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# File 'lib/link_thumbnailer/scrapers/base.rb', line 13

def attribute_name
  @attribute_name
end

#config ⇒ Object (readonly)

Returns the value of attribute config.



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# File 'lib/link_thumbnailer/scrapers/base.rb', line 13

def config
  @config
end

#document ⇒ Object (readonly)

Returns the value of attribute document.



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# File 'lib/link_thumbnailer/scrapers/base.rb', line 13

def document
  @document
end

#website ⇒ Object (readonly)

Returns the value of attribute website.



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# File 'lib/link_thumbnailer/scrapers/base.rb', line 13

def website
  @website
end

Instance Method Details

#applicable? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/link_thumbnailer/scrapers/base.rb', line 33

def applicable?
  true
end

#call(attribute_name) ⇒ Object 



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# File 'lib/link_thumbnailer/scrapers/base.rb', line 23

def call(attribute_name)
  return false unless website.present?
  return false unless applicable?

  @attribute_name = attribute_name

  website.send("#{attribute_name}=", value)
  website
end

#value ⇒ Object 



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# File 'lib/link_thumbnailer/scrapers/base.rb', line 37

def value
  fail NotImplementedError
end