personal-conference/app/models/writing_conference.rb

class WritingConference
  include Mongoid::Document
  include Mongoid::Timestamps

  include OrbitModel::Status
  include OrbitTag::Taggable
  include Slug

  field :paper_title, as: :slug_title, localize: true
  field :conference_title, localize: true
  field :authors, localize: true
  field :location, localize: true
  field :sponsor, localize: true
  
  field :year
  field :language
  field :period_start_date, :type => Date
  field :period_end_date, :type => Date
  field :keywords
  field :abstract
  field :publication_date, :type => Date
  field :url
  field :note
  field :create_user_id, :type => BSON::ObjectId
  field :update_user_id, :type => BSON::ObjectId
  field :isbn
  field :isi_number
  field :rss2_id

  belongs_to :member_profile

  has_and_belongs_to_many :conference_author_types
  has_and_belongs_to_many :conference_paper_types
  has_and_belongs_to_many :conference_paper_levels

  has_many :writing_conference_files, :autosave => true, :dependent => :destroy
  accepts_nested_attributes_for :writing_conference_files, :allow_destroy => true

  before_validation :add_http

  def create_link
    title = []

    title << self.authors if self.authors.present?

    if !self.publication_date.nil?
      pd = self.publication_date.strftime("%Y-%m-%d").split('-')
      title << pd[0]
    end

    title << self.paper_title if self.paper_title.present?
    title << self.conference_title if self.conference_title.present?
    title << self.location if self.location.present?
    title << "#{period_start_date}-#{period_end_date}" if (self.period_start_date.present? && self.period_end_date.present?)
    title.join(', ') 
  end

  def values_for_view
    attribute_values = self.attributes.select{|k,v| v if (k.in?(
      [ "year",
        "language",
        "period_start_date",
        "period_end_date",
        "publication_date",
        "keywords",
        "abstract",
        "url",
        "note",
        "isbn",
        "isi_number"]) && v.present?)}

    localized_fields = {
        "paper_title" => self.paper_title, 
        "conference_title" => self.conference_title,
        "location"=>self.location,
        "sponsor"=>self.sponsor}

    authors = {"authors" => self.authors}

    files = Hash.new
    # self.writing_conference_files.each do |f, index| 
    #   title = f.title.blank? ? File.basename(f.file.path) : f.title
    # end
    values = [localized_fields, attribute_values, authors,files]
    values.inject(&:merge)
  end

  protected

  def add_http
    unless self.url.blank? || self.url[/^http:\/\//] || self.url[/^https:\/\//]
      self.url = 'http://' + self.url
    end
  end

end