Class: FileDatabase

Inherits:
Object
  • Object
show all
Defined in:
lib/keeperchallenge/database.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ FileDatabase

will create the db folder if not present on system



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# File 'lib/keeperchallenge/database.rb', line 4

def initialize
  #if db folder does not exist, create it
  @folder_path = File.dirname(__FILE__) + "/db/"
  puts @folder_path
  unless File.directory?(@folder_path)
    Dir.mkdir(@folder_path)
  end
end

Instance Attribute Details

#folder_path ⇒ Object (readonly)

Returns the value of attribute folder_path.



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# File 'lib/keeperchallenge/database.rb', line 2

def folder_path
  @folder_path
end

Instance Method Details

#clear ⇒ Object

Will remove all player files from the db directory



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# File 'lib/keeperchallenge/database.rb', line 52

def clear
  Dir.foreach(@folder_path) do |file|
    unless (file =='.' || file == '..')
      File.delete("#{@folder_path}#{file}")
    end
  end
end

#load(players) ⇒ Object

will load all files from db directory and load them as player and activities



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# File 'lib/keeperchallenge/database.rb', line 15

def load(players)

  # read all files in database
  
  Dir.foreach(@folder_path) do |file|
    if !(file =='.' || file == '..')
      # create an object per file (=player)
      players.update({file => Player.new(file)})
      # populate with activities
      content = File.open("#{@folder_path}#{file}")
      content.each_line do |line|
        activity = line.split(' ')
        players[file].add_activity(activity[0], activity[1], activity[2], activity[3])
      end

      content.close
    end
  end
end

#save(players) ⇒ Object

will save player to static files in db directory



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# File 'lib/keeperchallenge/database.rb', line 36

def save(players)
  # create a file per player
  players.each do |key,player|
    file_name = "#{@folder_path}#{player.name}"
    player_file = File.open(file_name,'w')
    # in this file : one activity per line, each attribute separated by a space 
    player.activities.each do |activity|
      activity_string = "#{activity.type} #{activity.time} #{activity.cal} #{activity.km}\n"
      player_file.write(activity_string)
    end
    player_file.close
  end

end