98 lines
2.7 KiB
Ruby
98 lines
2.7 KiB
Ruby
class Item
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include Mongoid::Document
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include Mongoid::Timestamps
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field :name, :index => true
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field :full_name, :index => true
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field :i18n_variable_id, :type => BSON::ObjectId
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field :parent_id, :index => true
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field :parent_name
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field :position, :type => Integer
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field :is_published, :type => Boolean, :default => true, :index => true
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validates_format_of :name, :with => /^[0-9a-zA-Z\-_]+$/
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validates :name, :exclusion => { :in => LIST[:forbidden_item_names] }
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validates_uniqueness_of :name, :scope => :parent_id
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validates_presence_of :name, :full_name, :position, :is_published
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validates_presence_of :parent_id, :if => :validates_presence_of_parent_id?
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referenced_in :parent, :class_name => "Item"
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references_many :children, :class_name => "Item"
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before_validation :setup_default_value
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# Destroy the i18n_variable
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def destroy_i18n_variable
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self.i18n_variable.destroy rescue nil
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end
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def self.find_by_name(item_name)
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Item.first(:conditions => { :name => item_name, :is_published => true })
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end
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# Get an array of ancestors
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def ancestors
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node, nodes = self, []
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nodes << node = node.parent while !node.parent.blank? rescue nil
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nodes.reverse
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end
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# Destroy the i18n_variable
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def destroy_i18n_variable
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self.i18n_variable.destroy rescue nil
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end
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# Update or create the i18n_variable record
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def i18n_variable=(attr)
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if self.i18n_variable_id
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self.i18n_variable.update_attributes(attr) rescue nil
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else
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var = I18nVariable.new(attr.merge({:key => self.name, :document_class => self.class}))
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var.save
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self.i18n_variable_id = var.id
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end
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end
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# Get the i18n_variable
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def i18n_variable
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@i18n_variable ||= I18nVariable.find(self.i18n_variable_id) rescue nil
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end
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# Check if the page is home
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def is_home?
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self.name.eql?('home') && (self.parent_id.nil? || self.parent_id.empty?)
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end
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# Build the url from the array of ancestors
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def url
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urls = ancestors.map{ |a| a.name } << self.name
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urls.join("/")
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end
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protected
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def setup_default_value
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# Set the position value within the parent scope
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if self.position.blank?
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max_page = Item.where(:parent_id => self.parent_id).count
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self.position = (max_page)? max_page + 1 : 1
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end
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# Set the parent value
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self.parent_name = Item.first(:conditions => {:id => self.parent_id} ).name rescue nil
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# Build the full_name from the ancestors array
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full_node = self.ancestors.map{ |a| a.name }.push( self.name )
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# Remove root node if not root
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full_node.shift if full_node.size >= 2
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self.full_name = full_node.join("/")
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end
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# Enable the validation for parent_id
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def validates_presence_of_parent_id?
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true
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end
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end
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