Class: Thingiverse::Pagination

Inherits:
Object
  • Object
show all
Extended by:
Forwardable
Includes:
Enumerable
Defined in:
lib/thingiverse/pagination.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(response, object) ⇒ Pagination

Returns a new instance of Pagination.



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# File 'lib/thingiverse/pagination.rb', line 11

def initialize(response, object)
  @response = response
  @object   = object

  # TODO: provide more debug info and raise a custom exception
  raise "#{@response.code}: #{JSON.parse(@response.body)['error']}" unless @response.success?
  
  @objects = @response.parsed_response.collect do |attrs|
    @object.new attrs
  end

  if @response.headers.include?("link")
    @response.headers["link"].split(",").each do |link|
      url, rel = link.split(";").collect{|p| p.gsub(/\<|\>|rel\=|\"/,'').strip}
      instance_variable_set("@#{rel}_url", url)
      url_params = CGI.parse(URI.parse(url).query.to_s)

      case rel
      when "last"
        @total_pages = url_params["page"][0].to_i
      when "next"
        @current_page = url_params["page"][0].to_i - 1
      when "prev"
        @current_page = url_params["page"][0].to_i + 1
      end
    end
  end
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(meth, *args, &block) ⇒ Object 



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# File 'lib/thingiverse/pagination.rb', line 42

def method_missing(meth, *args, &block)
  if meth.to_s =~ /^(.*)_page$/
    get_url_page($1, *args, &block)
  else
    super
  end
end

Instance Attribute Details

#current_page ⇒ Object (readonly)

Returns the value of attribute current_page.



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# File 'lib/thingiverse/pagination.rb', line 9

def current_page
  @current_page
end

#first_url ⇒ Object (readonly)

Returns the value of attribute first_url.



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# File 'lib/thingiverse/pagination.rb', line 9

def first_url
  @first_url
end

#last_url ⇒ Object (readonly)

Returns the value of attribute last_url.



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# File 'lib/thingiverse/pagination.rb', line 9

def last_url
  @last_url
end

#next_url ⇒ Object (readonly)

Returns the value of attribute next_url.



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# File 'lib/thingiverse/pagination.rb', line 9

def next_url
  @next_url
end

#object ⇒ Object (readonly)

Returns the value of attribute object.



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# File 'lib/thingiverse/pagination.rb', line 8

def object
  @object
end

#prev_url ⇒ Object (readonly)

Returns the value of attribute prev_url.



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# File 'lib/thingiverse/pagination.rb', line 9

def prev_url
  @prev_url
end

#response ⇒ Object (readonly)

Returns the value of attribute response.



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# File 'lib/thingiverse/pagination.rb', line 8

def response
  @response
end

#total_pages ⇒ Object (readonly)

Returns the value of attribute total_pages.



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# File 'lib/thingiverse/pagination.rb', line 9

def total_pages
  @total_pages
end

Instance Method Details

#each(&block) ⇒ Object 



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# File 'lib/thingiverse/pagination.rb', line 55

def each(&block)
  @objects.each(&block)
end

#get_url_page(which, *args, &block) ⇒ Object 



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# File 'lib/thingiverse/pagination.rb', line 50

def get_url_page(which, *args, &block)
  url = instance_variable_get("@#{which}_url")
  Thingiverse::Pagination.new(Thingiverse::Connection.get(url), @object) if url
end