Class: Feedcellar::GroongaDatabase

Inherits:
Object
  • Object
show all
Defined in:
lib/feedcellar/groonga_database.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ GroongaDatabase

Returns a new instance of GroongaDatabase.



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# File 'lib/feedcellar/groonga_database.rb', line 5

def initialize
  @database = nil
end

Instance Method Details

#add(resource_key, title, link, description, date) ⇒ Object 



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# File 'lib/feedcellar/groonga_database.rb', line 38

def add(resource_key, title, link, description, date)
  feeds.add(link, :resource    => resources[resource_key],
                  :title       => title,
                  :link        => link,
                  :description => description,
                  :date        => date)
end

#close ⇒ Object 



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# File 'lib/feedcellar/groonga_database.rb', line 53

def close
  @database.close
  @database = nil
end

#closed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/feedcellar/groonga_database.rb', line 58

def closed?
  @database.nil? or @database.closed?
end

#dump ⇒ Object 



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# File 'lib/feedcellar/groonga_database.rb', line 70

def dump
  Groonga::DatabaseDumper.dump
end

#feeds ⇒ Object 



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# File 'lib/feedcellar/groonga_database.rb', line 66

def feeds
  @feeds ||= Groonga["Feeds"]
end

#open(base_path, encoding = :utf8) ⇒ Object 



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# File 'lib/feedcellar/groonga_database.rb', line 9

def open(base_path, encoding=:utf8)
  reset_context(encoding)
  path = File.join(base_path, "feedcellar.db")
  if File.exist?(path)
    @database = Groonga::Database.open(path)
    begin
      populate_schema
    rescue Groonga::Schema::ColumnCreationWithDifferentOptions
      # NOTE: migrate to feedcellar-0.3.0 from 0.2.2 or earlier.
      populate_new_schema
      transform_resources_key
    end
  else
    FileUtils.mkdir_p(base_path)
    populate(path)
  end
  if block_given?
    begin
      yield(self)
    ensure
      close unless closed?
    end
  end
end

#register(key, attributes) ⇒ Object 



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# File 'lib/feedcellar/groonga_database.rb', line 34

def register(key, attributes)
  resources.add(key, attributes)
end

#resources ⇒ Object 



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# File 'lib/feedcellar/groonga_database.rb', line 62

def resources
  @resources ||= Groonga["Resources"]
end

#unregister(title_or_url) ⇒ Object 



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# File 'lib/feedcellar/groonga_database.rb', line 46

def unregister(title_or_url)
  resources.delete do |record|
    (record.title == title_or_url) |
    (record.xmlUrl == title_or_url)
  end
end