changing remove tree

[pettanr/pettanr.git] / lib / peta / item.rb

module Peta
  class Item < ActiveRecord::Base
    self.abstract_class = true
    
    # Dynamic ClassMethods
    
    def self._valid_encode_columns
      self.my_manifest.valid_encode_columns
    end
    
    def self._child_models
      self.my_manifest.child_models tree_name
    end
    
    def self._extend_column_name
      self.my_manifest.extend_column_name
    end
    
    def self.load_manifest
      return nil unless self.my_manifest
      r = self._valid_encode_columns
      define_singleton_method("valid_encode_columns") do 
        r
      end
      r = self._child_models
      define_singleton_method("child_models") do
        r
      end
      define_singleton_method("child_element_names") do
        self.my_manifest.child_element_names tree_name
      end
      n = self._extend_column_name
      define_singleton_method("extend_column_name") do 
        n
      end
      # Instance Methods
    end
    
    # ClassMethods
    # class_name
    # table_name
    
    before_validation :valid_encode
    
    def self.my_peta
      Manifest.manifest.items[self.item_name]
    end
    
    def self.my_manifest
      Manifest.manifest.models[self.item_name]
    end
    
    def self.singular
      self.to_s
    end
    
    def self.plural
      self.singular.pluralize
    end
    
    def self.item_name
      self.singular.underscore
    end
    
    def self.item?
      true
    end
    
    def self.content?
      false
    end
    
    def self.element?
      false
    end
    
    def self.root?
      false
    end
    
    def self.parent_model
      nil
    end
    
    def self.path_name with_engine = false
      self.plural.underscore
    end
    
    def self.visible_count_options
      nil
    end
    
    def self.list_where
      ''
    end
    
    def self.list_order
      ''
    end
    
    def self.list_opt
      {}
    end
    
    def self.list_json_opt
      {}
    end
    
    def self.show item_id, operators
      opt = {}
      opt.merge!(self.show_opt)
      item = self.find(item_id, opt)
      raise ActiveRecord::Forbidden unless item.visible?(operators)
      item
    end
    
    def self.show_opt
      {}
    end
    
    def self.show_json_opt
      {}
    end
    
    #InstanceMethods
    
    def item_name
      self.class.item_name
    end
    
    def model_name
      self.item_name
    end
    
    def table_name
      self.class.table_name
    end
    
    def extend_column_name
      self.class.extend_column_name
    end
    
    def path_name with_engine = false
      self.class.path_name(with_engine)
    end
    
    def form_template with_engine = false
      self.path_name(with_engine) + '/form'
    end
    
    def form_name
      self.extend_column ? self.attributes[self.extend_column] : self.item_name
    end
    
    def valid_encode
      self.class.valid_encode_columns.each do |a|
        next if attributes[a] == nil
        raise Pettanr::BadRequest unless attributes[a].valid_encoding?
      end
    end
    
    def self.fold_extend_settings params
      speech_balloon_settings = params[:speech_balloon][:settings]
      if speech_balloon_settings.is_a?(Hash)
        params[:speech_balloon][:settings] = speech_balloon_settings.to_json
      end
      balloon_settings = params[:speech_balloon][:balloon_attributes][:settings]
      if balloon_settings.is_a?(Hash)
        params[:speech_balloon][:balloon_attributes][:settings] = balloon_settings.to_json
      end
      speech_settings = params[:speech_balloon][:speech_attributes][:settings]
      if speech_settings.is_a?(Hash)
        params[:speech_balloon][:speech_attributes][:settings] = speech_settings.to_json
      end
    end
    
    def engine
      Object.const_get self.attributes[self.extend_column_name]
    end
    
    def my_engine_resource
      Manifest.manifest.system_resources.engine_resources[self.table_name]
    end
    
    def engine?
      return false unless self.my_engine_resource
      self.my_engine_resource.resource_items.include? self.attributes[self.extend_column_name]
    end
    
    def boost
      return false unless self.engine?
      self.engine.boost self
      true
    end
    
    def supply_default
    end
    
    def overwrite 
    end
    
    def visible? operators
      if Manifest.manifest.magic_numbers['run_mode'] == 0
        return false unless operators.guest?
      else
        return false unless operators.resource_reader?
      end
      true
    end
    
    def editize?
      self.respond_to? :editor
    end
    
    def dom_id
      self.id.to_s
    end
    
    def dom_pool_type
      self.new_record? ? 'stored' : 'new'
    end
    
    def merge_dom_item_id attr, name = nil
      if self.editize?
        attr.merge({'id' => self.dom_item_id(name)})
      else
        attr
      end
    end
    
    def tag_attributes name = nil, opt = {}
      r = {
        'data-pool_type' => self.dom_pool_type, 'data-id' => self.dom_id, 
        'data-item_name' => self.item_name
      }
      r = self.merge_dom_item_id r, name
      r.merge!(opt)
      r
    end
    
    def field_tag_attributes column_name, opt = {}
      self.tag_attributes(column_name, opt).merge(
        {'data-column_name' => column_name}
      )
    end
    
    def post_attribute_key
      self.dom_id
    end
    
  end
end