Module: LucidFile::Mixin

Defined in:
lib/isomorfeus_data/lucid_file/mixin.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(base) ⇒ Object



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# File 'lib/isomorfeus_data/lucid_file/mixin.rb', line 3

def self.included(base)
  base.extend(Isomorfeus::Data::GenericClassApi)
  base.include(Isomorfeus::Data::GenericInstanceApi)
  base.include(LucidI18n::Mixin)

  def changed!
    @_changed = true
  end

  def to_transport
    hash = {}
    hash['revision'] = revision if revision
    hash['data_uri'] = data_uri
    result = { @class_name => { @key => hash }}
    result.deep_merge!(@class_name => { @previous_key => { new_key: @key }}) if @previous_key
    result
  end

  if RUBY_ENGINE == 'opal'
    base.instance_exec do
      def files_path
      end

      def files_path=(_)
      end
    end

    def initialize(key: nil, content_type: nil, data: nil, data_uri: nil, revision: nil, _loading: false)
      @key = key.nil? ? SecureRandom.uuid : key.to_s
      @class_name = self.class.name
      @class_name = @class_name.split('>::').last if @class_name.start_with?('#<')
      _update_paths
      @_revision = revision ? revision : Redux.fetch_by_path(:data_state, :revision, @class_name, @key)
      @_changed = false
      @_reload = false
      loaded = loaded?
      @_data_uri_object = nil
      @_data_uri_string = nil
      if data_uri
        self.data_uri = data_uri
      elsif data
        self.data = data
        self.content_type = content_type if content_type
      else
        self._data('')
        self._content_type(content_type) if content_type
      end
    end

    def _load_from_store!
      @_changed = false
      @_reload = true
    end

    def _reload
      return unless @_reload
      @_reload = false
      d = Redux.fetch_by_path(*@_store_path)
      self._data_uri(d) if d
    end

    def _update_paths
      @_store_path = [:data_state, @class_name, @key, :data_uri]
    end

    def content_type
      _reload
      return @_data_uri_object.content_type if @_data_uri_object
      nil
    end

    def content_type=(c)
      changed!
      _content_type(c)
    end

    def _content_type(c)
      _reload
      @_data_uri_string = _format_data_uri(c, @_data_uri_object.data)
      @_data_uri_object = URI::Data.new(@_data_uri_string)
      c
    end

    def data
      _reload
      @_data_uri_object.data
    end

    def data=(d)
      changed!
      _data(d)
    end

    def _data(d)
      _reload
      @_data_uri_string = _format_data_uri(self.content_type, d)
      @_data_uri_object = URI::Data.new(@_data_uri_string)
      d
    end

    def data_uri
      _reload
      @_data_uri_string
    end

    def data_uri=(d)
      changed!
      _data_uri(d)
    end

    def _data_uri(d)
      _reload
      if d.class == URI::Data
        @_data_uri_string = _format_data_uri(d.content_type, d.data)
        @_data_uri_object = d
      else
        @_data_uri_string = d
        @_data_uri_object = URI::Data.new(d)
      end
      @_data_uri_string
    end

    def data_uri_object
      _reload
      @_data_uri_object
    end

    def _format_data_uri(c, d)
      "data:#{c};base64,#{Base64.encode64(d).chop}"
    end
  else # RUBY_ENGINE
    Isomorfeus.add_valid_file_class(base) unless base == LucidFile::Base

    base.instance_exec do
      def instance_from_transport(instance_data, _included_items_data)
        key = instance_data[self.name].keys.first
        revision = instance_data[self.name][key].key?('revision') ? instance_data[self.name][key]['revision'] : nil
        data_uri = instance_data[self.name][key].key?('data_uri') ? instance_data[self.name][key]['data_uri'] : nil
        new(key: key, revision: revision, data_uri: data_uri)
      end

      def props_from_data(instance_data)
        key = instance_data[self.name].keys.first
        revision = instance_data[self.name][key].key?('revision') ? instance_data[self.name][key]['revision'] : nil
        data_uri = instance_data[self.name][key].key?('data_uri') ? instance_data[self.name][key]['data_uri'] : nil
        LucidProps.new({ key: key, revision: revision, data_uri: data_uri })
      end

      def files_path
        @files_path ||= Isomorfeus.files_path
      end

      def files_path=(f)
        @files_path = f
      end

      def check_and_prepare_path(key:)
        Isomorfeus.raise_error(message: 'Invalid key (contains ".." or "\\")') if key.include?('..') || key.include?('\\')
        elements = key.split('/')
        Isomorfeus.raise_error(message: 'Invalid key (contains more than 2 slashes "/")') if elements.size > 3
        file = elements.pop
        if elements.size > 0
          dir_path = ::File.expand_path(::File.join(files_path, *elements))
          FileUtils.mkdir_p(dir_path) unless Dir.exist?(dir_path)
          ::File.join(dir_path, file)
        else
          FileUtils.mkdir_p(files_path) unless Dir.exist?(files_path)
          ::File.join(files_path, file)
        end
      end

      execute_create do
        self.save
      end

      execute_destroy do |key:|
        file = check_and_prepare_path(key: key)
        ::FileUtils.rm_f(file)
        true
      end

      execute_load do |key:|
        file = check_and_prepare_path(key: key)
        if File.exist?(file)
          d = ::File.binread(file)
          instance = self.new(key: key, data: d)
          instance
        else
          nil
        end
      end

      execute_save do
        file = self.class.check_and_prepare_path(key: self.key)
        ::File.binwrite(file, self.data)
        self
      end
    end

    def initialize(key: nil, content_type: nil, data: nil, data_uri: nil, revision: nil)
      @key = key.nil? ? SecureRandom.uuid : key.to_s
      @class_name = self.class.name
      @class_name = @class_name.split('>::').last if @class_name.start_with?('#<')
      @_revision = revision
      if data_uri
        self._data_uri(data_uri)
      else
        @_data = data
        @_content_type = content_type
      end
      @_changed = false
    end

    def _unchange!
      @_changed = false
    end

    def content_type
      @_content_type = @_data_uri_object.content_type if !@_content_type && @_data_uri_object
      @_content_type
    end

    def content_type=(c)
      changed!
      _content_type(c)
    end

    def _content_type(c)
      if @_data_uri_string
        @_data_uri_string = _format_data_uri(c, @_data_uri_object.data)
        @_data_uri_object = URI::Data.new(@_data_uri_string)
      end
      @_content_type = c
    end

    def data
      @_data = @_data_uri_object.data if !@_data && @_data_uri_object
      @_data
    end

    def data=(d)
      changed!
      @_data = d
    end

    def data_uri
      _data_uri(_format_data_uri(content_type, @_data)) if !@_data_uri_string && @_data
      @_data_uri_string
    end

    def data_uri=(d)
      changed!
      _data_uri(d)
    end

    def _data_uri(d)
      if d.class == URI::Data
        d = '' if d.nil?
        @_data_uri_string = _format_data_uri(d.content_type, d.data)
        @_data_uri_object = d
      else
        @_data_uri_string = d
        @_data_uri_object = URI::Data.new(d)
      end
      @_data_uri_string
    end

    def data_uri_object
      _data_uri(@_data) if !@_data_uri_object && @_data
      @_data_uri_object
    end

    def _format_data_uri(c, d)
      "data:#{c};base64,#{Base64.encode64(d).chop}"
    end
  end # RUBY_ENGINE
end

Instance Method Details

#changed!Object



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# File 'lib/isomorfeus_data/lucid_file/mixin.rb', line 8

def changed!
  @_changed = true
end

#to_transportObject



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# File 'lib/isomorfeus_data/lucid_file/mixin.rb', line 12

def to_transport
  hash = {}
  hash['revision'] = revision if revision
  hash['data_uri'] = data_uri
  result = { @class_name => { @key => hash }}
  result.deep_merge!(@class_name => { @previous_key => { new_key: @key }}) if @previous_key
  result
end