Class: Parse::Importer::Store

Inherits:
Object
  • Object
show all
Defined in:
lib/parse/importer/store.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(dirname = nil) ⇒ Store

Returns a new instance of Store.



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# File 'lib/parse/importer/store.rb', line 6

def initialize dirname=nil
  @parse_class_table = {}
  @parse_object_table = {}
  @store = {}
  @relations = []
  load dirname if dirname
end

Instance Attribute Details

#store ⇒ Object (readonly)

Returns the value of attribute store.



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# File 'lib/parse/importer/store.rb', line 4

def store
  @store
end

Instance Method Details

#add_relations ⇒ Object 



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# File 'lib/parse/importer/store.rb', line 90

def add_relations
  @relations.each do |filepath, column_name, parse_class_name|
    parse_class = Parse::Object(parse_class_name)
    results = JSON.parse File.read(filepath)
    results['results'].each do |relation|
      object = parse_class.find_by_id new_object_id_from_old_one(relation['owningId'])
      related_object = @parse_object_table[relation['relatedId']]
      object.send "#{column_name}=", Parse::Op::AddRelation.new(related_object.pointer)
      object.save!
      puts "#{relation['owningId']} and #{relation['relatedId']} have been connected."
    end
  end
end

#create_blank_objects ⇒ Object 



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# File 'lib/parse/importer/store.rb', line 45

def create_blank_objects
  @parse_class_table.each do |old_object_id, parse_class|
    parse_object = parse_class.new
    if parse_class.parse_class_name == '_User'
      parse_object.username = SecureRandom.uuid # temporary username
      parse_object.password = 'password'
    end
    parse_object.save
    @parse_object_table[old_object_id] = parse_object
    puts "#{parse_class.parse_class_name}(#{old_object_id}) has been created."
  end
end

#load(dirname) ⇒ Object 



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# File 'lib/parse/importer/store.rb', line 14

def load dirname
  Dir["#{dirname}/*"].each do |filepath|
    filename = filepath.sub(%r|#{dirname}/|, '')
    if filename =~ /^_Join:(.*):(.*).json$/
      column_name = $1
      parse_class_name = $2
      @relations << [filepath, column_name, parse_class_name]
    elsif filename =~ /^(.*).json$/
      parse_class_name = $1
      parse_class = Parse::Object(parse_class_name)
      rows = []
      results = JSON.parse File.read(filepath)
      results['results'].each do |data|
        rows << data
        @parse_class_table[data['objectId']] = parse_class
      end
      @store[parse_class_name] = rows
    end
  end
end

#new_object_id_from_old_one(object_id) ⇒ Object 



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# File 'lib/parse/importer/store.rb', line 35

def new_object_id_from_old_one object_id
  @parse_object_table[object_id].objectId
end

#save ⇒ Object 



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# File 'lib/parse/importer/store.rb', line 39

def save
  create_blank_objects
  update_objects
  add_relations
end

#update_objects ⇒ Object 



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# File 'lib/parse/importer/store.rb', line 58

def update_objects
  @store.each do |parse_class_name, rows|
    rows.each do |data|
      parse_object = @parse_object_table[data['objectId']]
      data.each do |k, v|
        if v.is_a? Hash
          case v['__type']
          when 'Pointer'
            v['objectId'] = new_object_id_from_old_one v['objectId']
          when 'File'
            open v['url'] do |filedata|
              filepath = Tempfile.open 'temp' do |tempfile|
                tempfile.write filedata.read
                tempfile.path
              end
              name = File.basename(v['url']).split('-').last
              parse_file = Parse::ParseFile.new :name => name, :content => filepath
              parse_file.save
              data[k] = parse_file
            end
          end
        end
      end
      data.reject! do |k, v|
        %w(sessionToken bcryptPassword).include? k
      end
      parse_object.update! data
      puts "#{parse_object.parse_class_name}(#{data['objectId']}) has been updated."
    end
  end
end