app/models/learning_object/attachment.rb

+
+# Copyright (C) 2015 Centro de Computacao Cientifica e Software Livre
+# Departamento de Informatica - Universidade Federal do Parana
+#
+# This file is part of portalmec.
+#
+# portalmec is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# portalmec is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with portalmec.  If not, see <http://www.gnu.org/licenses/>.
+
 # == Schema Information
 #
 # Table name: learning_object_attachments
@@ -22,12 +41,18 @@
 #  cache_link             :string
 #
 
-class LearningObject::Attachment < ActiveRecord::Base
+class LearningObject::Attachment < ApplicationRecord
   include ::Thumbnailable
   belongs_to :learning_object
   scope :unknown_mime_type, ->() { where(format: 'Unknown') }
+  has_one :learning_object_attachment, as: :learning_object_attachment_id_son
+  belongs_to :learning_object_attachment, optional: true
+
 
   def retrieve_url
+    return retrieve_link if bundle_name == "ORE" || bundle_name == "LINK"
+    return retrieve_link.sub("public", "") if bundle_name == "TEMP"
+    return "#{DspaceService.link}#{retrieve_link}" if retrieve_link.include? "rest"
     "#{DspaceService.link}/rest#{retrieve_link}"
   end
 

app/models/learning_object/draft.rb

-# == Schema Information
-#
-# Table name: learning_objects
-#
-#  id                     :integer          not null, primary key
-#  id_dspace              :integer
-#  name                   :string
-#  author                 :string
-#  description            :text
-#  published_at           :datetime
-#  score                  :float            default("0.0")
-#  school_level           :integer
-#  metadata               :jsonb            default("{}")
-#  keywords               :text
-#  publisher_id           :integer
-#  publisher_type         :string
-#  language_id            :integer
-#  object_type_id         :integer
-#  created_at             :datetime         not null
-#  updated_at             :datetime         not null
-#  views_count            :integer          default("0")
-#  downloads_count        :integer          default("0")
-#  likes_count            :integer          default("0")
-#  shares_count           :integer          default("0")
-#  state                  :string           default("published")
-#  thumbnail_file_name    :string
-#  thumbnail_content_type :string
-#  thumbnail_file_size    :integer
-#  thumbnail_updated_at   :datetime
-#  attachment_id          :integer
-#
-
-class LearningObject::Draft < LearningObject
-
-  ##overwrites initialize method to force @state value as draft
-  def initialize(attributes = nil, options = {})
-    super(attributes, options)
-    @state = 'draft'
-  end
-
-end

app/models/license.rb

-class License < ActiveRecord::Base
+
+# Copyright (C) 2015 Centro de Computacao Cientifica e Software Livre
+# Departamento de Informatica - Universidade Federal do Parana
+#
+# This file is part of portalmec.
+#
+# portalmec is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# portalmec is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with portalmec.  If not, see <http://www.gnu.org/licenses/>.
+
+class License < ApplicationRecord
   validates :name, presence: true
 end

app/models/like.rb

+
+# Copyright (C) 2015 Centro de Computacao Cientifica e Software Livre
+# Departamento de Informatica - Universidade Federal do Parana
+#
+# This file is part of portalmec.
+#
+# portalmec is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# portalmec is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with portalmec.  If not, see <http://www.gnu.org/licenses/>.
+
 # == Schema Information
 #
 # Table name: likes
@@ -10,14 +29,18 @@
 #  updated_at    :datetime         not null
 #
 
-class Like < ActiveRecord::Base
+class Like < ApplicationRecord
   # *current_user* likes *likeable*
   # *current_user* unlikes *likeable*
   include Trackable
 
   belongs_to :likeable, polymorphic: true, counter_cache: true
-  belongs_to :user
+  belongs_to :user, counter_cache: true
 
   validates_presence_of :user, :likeable
   validates :user_id, uniqueness: { scope: [:likeable_id, :likeable_type] }
+
+  def recipient
+    likeable
+  end
 end

app/models/mime_type.rb

+
+# Copyright (C) 2015 Centro de Computacao Cientifica e Software Livre
+# Departamento de Informatica - Universidade Federal do Parana
+#
+# This file is part of portalmec.
+#
+# portalmec is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# portalmec is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with portalmec.  If not, see <http://www.gnu.org/licenses/>.
+
 # == Schema Information
 #
 # Table name: mime_types
@@ -7,6 +26,6 @@
 #  mime_type :string
 #
 
-class MimeType < ActiveRecord::Base
+class MimeType < ApplicationRecord
   has_and_belongs_to_many :object_types
 end

app/models/object_type.rb

-class ObjectType < ActiveRecord::Base
+
+# Copyright (C) 2015 Centro de Computacao Cientifica e Software Livre
+# Departamento de Informatica - Universidade Federal do Parana
+#
+# This file is part of portalmec.
+#
+# portalmec is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# portalmec is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with portalmec.  If not, see <http://www.gnu.org/licenses/>.
+
+class ObjectType < ApplicationRecord
   has_many :learning_objects
   has_and_belongs_to_many :mime_types
+  has_and_belongs_to_many :searches
 
   validates_presence_of :name
   validates_uniqueness_of :name

app/models/package.rb

+
+# Copyright (C) 2015 Centro de Computacao Cientifica e Software Livre
+# Departamento de Informatica - Universidade Federal do Parana
+#
+# This file is part of portalmec.
+#
+# portalmec is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# portalmec is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with portalmec.  If not, see <http://www.gnu.org/licenses/>.
+
+# == Schema Information
+#
+# Table name: packages
+#
+# package_items_id      integer
+# created_at            datetime       null: false
+# updated_at            datetime       null: false
+# file_path             string
+
+class Package < ApplicationRecord
+  has_many :package_items, dependent: :destroy
+
+  validates_presence_of :file_path
+
+  def add_items(items)
+    items.each do |item|
+      package_item = PackageItem.where(package: self, packageable: item).first_or_create
+    end
+  end
+end

app/models/package_item.rb

+
+# Copyright (C) 2015 Centro de Computacao Cientifica e Software Livre
+# Departamento de Informatica - Universidade Federal do Parana
+#
+# This file is part of portalmec.
+#
+# portalmec is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# portalmec is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with portalmec.  If not, see <http://www.gnu.org/licenses/>.
+
+# == Schema Information
+#
+# Table name: package_items
+#
+# package_id            integer
+# packageable_type      string
+# packageable_id        integer
+# created_at            datetime       null: false
+# updated_at            datetime       null: false
+
+class PackageItem < ApplicationRecord
+  belongs_to :package
+  belongs_to :packageable, polymorphic: true
+
+  validates :package, :packageable, presence: true
+end

app/models/question.rb

+# Copyright (C) 2015 Centro de Computacao Cientifica e Software Livre
+# Departamento de Informatica - Universidade Federal do Parana
+#
+# This file is part of portalmec.
+#
+# portalmec is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# portalmec is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with portalmec.  If not, see <http://www.gnu.org/licenses/>.
+
+# == Schema Information
+#
+# Table name: questions
+
+# t.string   "description"
+# t.integer  "status",      default: 0
+# t.datetime "created_at",              null: false
+# t.datetime "updated_at",              null: false
+
+class Question < ApplicationRecord
+    enum status: [:inactive, :active]
+
+    has_many :answers
+    has_many :submissions, through: :answers
+end

app/models/rate.rb

+
+# Copyright (C) 2015 Centro de Computacao Cientifica e Software Livre
+# Departamento de Informatica - Universidade Federal do Parana
+#
+# This file is part of portalmec.
+#
+# portalmec is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# portalmec is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with portalmec.  If not, see <http://www.gnu.org/licenses/>.
+
 # == Schema Information
 #
 # Table name: rates
@@ -8,7 +27,7 @@
 #  review_id  :integer
 #  created_at :datetime         not null
 #  updated_at :datetime         not null
-class Rate < ActiveRecord::Base
+class Rate < ApplicationRecord
   # *current_user* rate a review *review*
   include Trackable
 
@@ -20,9 +39,13 @@ class Rate < ActiveRecord::Base
   validates_uniqueness_of :user, scope: :review
   validate :cannot_rate_your_own, on: :create
 
+  def recipient
+    review
+  end
+
   private
 
   def cannot_rate_your_own
-    errors.add(:user_id, "cannot rate your own review") if review.user == user
+    errors.add(:user_id, 'cannot rate your own review') if review.user == user
   end
 end

app/models/rating.rb

+
+# Copyright (C) 2015 Centro de Computacao Cientifica e Software Livre
+# Departamento de Informatica - Universidade Federal do Parana
+#
+# This file is part of portalmec.
+#
+# portalmec is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# portalmec is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with portalmec.  If not, see <http://www.gnu.org/licenses/>.
+
 # == Schema Information
 #
 # Table name: ratings
@@ -9,7 +28,7 @@
 #  description :string
 #
 
-class Rating < ActiveRecord::Base
-  has_many :review_ratings
+class Rating < ApplicationRecord
+  has_many :review_ratings, dependent: :destroy
   has_many :reviews, through: :review_ratings
 end

app/models/review.rb

+
+# Copyright (C) 2015 Centro de Computacao Cientifica e Software Livre
+# Departamento de Informatica - Universidade Federal do Parana
+#
+# This file is part of portalmec.
+#
+# portalmec is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# portalmec is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with portalmec.  If not, see <http://www.gnu.org/licenses/>.
+
 # == Schema Information
 #
 # Table name: reviews
@@ -15,9 +34,13 @@
 #  rates_count     :integer          default("0")
 #
 
-class Review < ActiveRecord::Base
+class Review < ApplicationRecord
   # *current_user* review *reviewable*
   include Trackable
+  include Complainable
+
+  after_save :calculate_review_rate
+  after_destroy :calculate_review_rate
 
   belongs_to :reviewable, polymorphic: true
   belongs_to :user
@@ -25,39 +48,52 @@ class Review < ActiveRecord::Base
   has_many :review_ratings
   has_many :ratings, through: :review_ratings
   has_many :rates
-  has_many :complaints, as: :complaintable
 
-  validates_presence_of :user, :reviewable, :review_ratings
+  validates_presence_of :user, :reviewable
   validates_inclusion_of :reviewable_type, in: %w(LearningObject Collection), message: 'Only LearningObjects and Collections are reviewable.'
   validates_uniqueness_of :user, scope: [:reviewable_id, :reviewable_type]
 
   accepts_nested_attributes_for :review_ratings
 
-  default_scope { includes(:user) }
-
   acts_as_paranoid
   has_paper_trail
 
   def rating_values
-    review_ratings.includes(:rating).map { |r| {rating: r.rating, value: r.value} }
+    review_ratings.includes(:rating).map { |r| { rating: r.rating, value: r.value } }
   end
 
   def rating_average
+    return 0.0 if review_ratings.empty?
     review_ratings.average(:value).floor(1).to_f
   end
 
   def rates_percentage
-    return false if rates.count < 5
+    return 0.0 if rates.count < 5
     approved = rates.where(approves: true).count
     (approved.to_f / rates.count.to_f) * 100
   end
 
-  def rated? (user)
-    !Rate.where(user: user, review: self).first.nil?
+  def rated?(user)
+    !Rate.find_by(user: user, review: self).nil?
   end
 
-  def user_approves? (user)
-    return Rate.where(user: user, review: self).first.approves if rated? user
+  def user_approves?(user)
+    return Rate.find_by(user: user, review: self).approves if rated? user
     nil
   end
+
+  def recipient
+    reviewable
+  end
+
+  private
+
+  def calculate_review_rate
+    if !reviewable.nil?
+      reviewable.review_average = reviewable.review_ratings_average
+      reviewable.save
+    end
+    # ReviewAverageCalculatorWorker.perform_in(1.minutes, reviewable.id, reviewable.class.name)
+  end
+
 end

app/models/review_rating.rb

+
+# Copyright (C) 2015 Centro de Computacao Cientifica e Software Livre
+# Departamento de Informatica - Universidade Federal do Parana
+#
+# This file is part of portalmec.
+#
+# portalmec is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# portalmec is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with portalmec.  If not, see <http://www.gnu.org/licenses/>.
+
 # == Schema Information
 #
 # Table name: review_ratings
@@ -10,11 +29,11 @@
 #  updated_at :datetime         not null
 #
 
-class ReviewRating < ActiveRecord::Base
+class ReviewRating < ApplicationRecord
   belongs_to :review
   belongs_to :rating
 
-  validates_inclusion_of :value, in: Array(1..5), message: "Review Rating must be between 1 and 5."
+  validates_inclusion_of :value, in: Array(1..5), message: 'Review Rating must be between 1 and 5.'
   validates_presence_of :rating
   validates_uniqueness_of :rating, scope: :review
 

app/models/role.rb

+
+# Copyright (C) 2015 Centro de Computacao Cientifica e Software Livre
+# Departamento de Informatica - Universidade Federal do Parana
+#
+# This file is part of portalmec.
+#
+# portalmec is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# portalmec is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with portalmec.  If not, see <http://www.gnu.org/licenses/>.
+
 # == Schema Information
 #
 # Table name: roles
@@ -9,25 +28,50 @@
 #  updated_at  :datetime         not null
 #
 
-class Role < ActiveRecord::Base
+class Role < ApplicationRecord
   has_and_belongs_to_many :users
+  has_and_belongs_to_many :emails
 
-  validates_presence_of :name
-  validates_uniqueness_of :name
+  validates :name, presence: true, uniqueness: true
 
   def self.admin
-    self.find_by_name('admin') || self.create!(name: 'admin')
+    find_by(name: 'admin') || create!(name: 'admin')
   end
 
   def self.teacher
-    self.find_by_name('teacher') || self.create!(name: 'teacher')
+    find_by(name: 'teacher') || create!(name: 'teacher')
   end
 
   def self.student
-    self.find_by_name('student') || self.create!(name: 'student')
+    find_by(name: 'student') || create!(name: 'student')
   end
 
   def self.curator
-    self.find_by_name('curator') || self.create!(name: 'curator')
+    find_by(name: 'curator') || create!(name: 'curator')
+  end
+
+  def self.moderator
+    find_by(name: 'moderator') || create!(name: 'moderator')
+  end
+
+  def self.editor
+    find_by(name: 'editor') || create!(name: 'editor')
   end
+
+  def self.supervisor
+    find_by(name: 'supervisor') || create!(name: 'supervisor')
+  end
+
+  def self.submitter
+    find_by(name: 'submitter') || create!(name: 'submitter')
+  end
+
+  def self.partner
+    find_by(name: 'partner') || create!(name: 'partner')
+  end
+
+  def self.publisher
+    find_by(name: 'publisher') || create!(name: 'publisher')
+  end
+
 end

app/models/school.rb

+class School < ApplicationRecord
+
+  has_many :users
+
+  validates :inep_id, presence: true, uniqueness: true
+  validates :name, :phone, :uf, :city, presence: true
+
+end

app/models/score.rb

+
+# Copyright (C) 2015 Centro de Computacao Cientifica e Software Livre
+# Departamento de Informatica - Universidade Federal do Parana
+#
+# This file is part of portalmec.
+#
+# portalmec is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# portalmec is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with portalmec.  If not, see <http://www.gnu.org/licenses/>.
+
 # == Schema Information
 #
 # Table name: scores
@@ -12,7 +31,7 @@
 #  score_type :string           default("{}"), is an Array
 #
 
-class Score < ActiveRecord::Base
+class Score < ApplicationRecord
   has_many :score_user_categories
   has_many :user_categories, through: :score_user_categories
 
@@ -24,10 +43,12 @@ class Score < ActiveRecord::Base
   has_paper_trail
 
   def max_value
-    score_user_categories.maximum(:value)
+    Rails.cache.fetch("#{cache_key}/max_value", expires_in: 23.hours) do
+      score_user_categories.maximum(:value)
+    end
   end
 
   def category_values(category)
-    score_user_categories.find { |x| x.score_id == id && x.user_category_id == category.id }.map {|x| [x.code, x.value] }.to_h
+    score_user_categories.find { |x| x.score_id == id && x.user_category_id == category.id }.map { |x| [x.code, x.value] }.to_h
   end
 end

app/models/score_user_category.rb

+
+# Copyright (C) 2015 Centro de Computacao Cientifica e Software Livre
+# Departamento de Informatica - Universidade Federal do Parana
+#
+# This file is part of portalmec.
+#
+# portalmec is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# portalmec is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with portalmec.  If not, see <http://www.gnu.org/licenses/>.
+
 # == Schema Information
 #
 # Table name: score_user_categories
@@ -10,7 +29,7 @@
 #  updated_at       :datetime         not null
 #
 
-class ScoreUserCategory < ActiveRecord::Base
+class ScoreUserCategory < ApplicationRecord
   belongs_to :score
   belongs_to :user_category
 

app/models/search.rb

-class Search
-  include ActiveModel::Model
-  attr_accessor :page, :results_per_page, :order, :query, :search_class, :tags, :types
 
+# Copyright (C) 2015 Centro de Computacao Cientifica e Software Livre
+# Departamento de Informatica - Universidade Federal do Parana
+#
+# This file is part of portalmec.
+#
+# portalmec is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# portalmec is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with portalmec.  If not, see <http://www.gnu.org/licenses/>.
+
+class Search < ApplicationRecord
+  attr_accessor :page, :results_per_page, :order, :tags, :and_fields
+
+  belongs_to :user, optional: true
+  has_and_belongs_to_many :tags
+  has_and_belongs_to_many :subjects
+  has_and_belongs_to_many :educational_stages
+  has_and_belongs_to_many :object_types
+  has_and_belongs_to_many :language
   validates_presence_of :query, :results_per_page, :order, :search_class
   validates_numericality_of :results_per_page, greater_than: 0
   validates :search_class, inclusion: { in: ::SearchService::SEARCH_CLASSES }
+  alias_attribute :subjects, :subject_ids
+  alias_attribute :educational_stages, :educational_stage_ids
+  alias_attribute :object_types, :object_type_ids
+  alias_attribute :languages, :language_ids
 
   def initialize(params = {})
-    super(defaults.merge(params.select { |key, _value| respond_to? key }))
+    super(params.merge(defaults(params)))
   end
 
   def learning_object?
@@ -24,12 +52,13 @@ class Search
 
   private
 
-  def defaults
+  def defaults(params)
     {
       query: '*',
       order: 'score',
-      page: 1,
-      results_per_page: 10
-    }
+      page: 0,
+      results_per_page: 10,
+      and_fields: []
+    }.select { |key, _value| !params.key?(key) }
   end
 end

app/models/share.rb

+
+# Copyright (C) 2015 Centro de Computacao Cientifica e Software Livre
+# Departamento de Informatica - Universidade Federal do Parana
+#
+# This file is part of portalmec.
+#
+# portalmec is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# portalmec is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with portalmec.  If not, see <http://www.gnu.org/licenses/>.
+
 # == Schema Information
 #
 # Table name: shares
@@ -10,7 +29,7 @@
 #  updated_at     :datetime         not null
 #
 
-class Share < ActiveRecord::Base
+class Share < ApplicationRecord
   # *current_user* shares *shareable*
   include Trackable
 
@@ -18,4 +37,8 @@ class Share < ActiveRecord::Base
   belongs_to :user
 
   validates_presence_of :user, :shareable
+
+  def recipient
+    shareable
+  end
 end

app/models/stage_relation.rb

+
+# Copyright (C) 2015 Centro de Computacao Cientifica e Software Livre
+# Departamento de Informatica - Universidade Federal do Parana
+#
+# This file is part of portalmec.
+#
+# portalmec is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# portalmec is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with portalmec.  If not, see <http://www.gnu.org/licenses/>.
+
+class StageRelation < ApplicationRecord
+  belongs_to :educational_stage
+  belongs_to :stageable, polymorphic: true
+
+  validates_presence_of :stageable, :educational_stage
+end