Class: Boom::Storage::Json

Inherits:
Base
  • Object
show all
Defined in:
lib/boom/storage/json.rb

Constant Summary collapse

JSON_FILE = 
"#{ENV['HOME']}/.boom"

Instance Attribute Summary

Attributes inherited from Base

#lists

Instance Method Summary collapse

Methods inherited from Base

#initialize, #item_exists?, #items, #list_exists?, #to_hash

Constructor Details

This class inherits a constructor from Boom::Storage::Base

Instance Method Details

#bootstrap ⇒ Object

Takes care of bootstrapping the Json file, both in terms of creating the file and in terms of creating a skeleton Json schema.

Return true if successfully saved.



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# File 'lib/boom/storage/json.rb', line 23

def bootstrap
  return if File.exist?(json_file)
  FileUtils.touch json_file
  File.open(json_file, 'w') {|f| f.write(to_json) }
  save
end

#json_file ⇒ Object

Public: the path to the Json file used by boom.

Returns the String path of boom’s Json representation.



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# File 'lib/boom/storage/json.rb', line 15

def json_file
  JSON_FILE
end

#populate ⇒ Object

Take a Json representation of data and explode it out into the consituent Lists and Items for the given Storage instance.

Returns nothing.



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# File 'lib/boom/storage/json.rb', line 34

def populate
  storage = Yajl::Parser.new.parse(File.new(json_file, 'r'))

  storage['lists'].each do |lists|
    lists.each do |list_name, items|
      @lists << list = List.new(list_name)

      items.each do |item|
        item.each do |name,value|
          list.add_item(Item.new(name,value))
        end
      end
    end
  end
end

#save ⇒ Object

Public: persists your in-memory objects to disk in Json format.

lists_Json - list in Json format

Returns true if successful, false if unsuccessful.



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# File 'lib/boom/storage/json.rb', line 55

def save
  File.open(json_file, 'w') {|f| f.write(to_json) }
end

#to_json ⇒ Object

Public: the Json representation of the current List and Item assortment attached to the Storage instance.

Returns a String Json representation of its Lists and their Items.



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# File 'lib/boom/storage/json.rb', line 63

def to_json
  Yajl::Encoder.encode(to_hash, :pretty => true)
end