adding language repository and builders, adding language associations with...

adding language repository and builders, adding language associations with learning object, fixing form and controller to create learning objects properly

Signed-off-by: man13 <man13@inf.ufpr.br>

app/builders/language_builder.rb

+class LanguageBuilder < Builder
+  ##
+  # receive a list of ids and return a list of languages
+  # useful for create a new learning object
+  #
+  def self.build(objects = [])
+    super(language_repository, objects, true, 'rid')
+  end
+
+  def self.build_from_orientdb(args = {})
+    super(args) do
+      obj = Language.new(
+          id: args['@rid'],
+          name: args['name'],
+          code: args['code']
+      )
+      obj
+    end
+  end
+
+  private
+end

app/controllers/learning_objects_controller.rb

@@ -23,6 +23,7 @@ class LearningObjectsController < ApplicationController
     @school_levels = ['Educação Infantil', 'Ensino Fundamental', 'Ensino Médio']
     @subjects = Subject.default_list
     @types = learning_object_repository.types
+    @languages = language_repository.all
   end
 
   # GET /learning_objects/1/edit

app/models/language.rb

+class Language
+  include ActiveModel::Model
+  include RepositoriesProxy
+  include OrientDbSerializable
+  include Metadatable
+
+  attr_accessor :id, :name, :code
+end
\ No newline at end of file

app/repositories/orient_db/associations/languages_association.rb

+class OrientDb::Associations::LanguagesAssociation < OrientDb::Association
+
+  def can_create?
+    true
+  end
+
+  protected
+
+  def execute
+    create_edge("HasLang", @object.id, @object.language)
+  end
+
+end
+

app/repositories/orient_db/associations/learning_object_associations.rb

@@ -4,7 +4,8 @@ class OrientDb::Associations::LearningObjectAssociations < OrientDb::Association
     [
         OrientDb::Associations::SubjectsAssociation.new(object, connection),
         OrientDb::Associations::AttributesAssociation.new(object, connection),
-        OrientDb::Associations::PublisherAssociation.new(object, connection)
+        OrientDb::Associations::PublisherAssociation.new(object, connection),
+        OrientDb::Associations::LanguagesAssociation.new(object, connection)
     ]
   end
 

app/repositories/orient_db/language_repository.rb

+require 'json'
+module OrientDb
+  class LanguageRepository < Base
+    include OrientDb::Methods::SocialMethods
+    include OrientDb::Methods::EdgeMethods
+    include OrientDb::Methods::CountableMethods
+    include RepositoriesProxy
+
+    def all
+      result = connection.query("Select from Language")
+      build_objects result
+    end
+  end
+end

app/views/learning_objects/_form.html.erb

@@ -27,8 +27,8 @@
             <%= f.label :description, "Descreva seu objeto" %>
             <%= f.text_area :description, class: "form-control" %><br>
 
-            <%= f.label :language, "Idioma do objeto" %>
-            <%= f.text_field :language, class: "form-control" %><br>
+            <%= f.label :language, "Idioma do objeto" %><br>
+            <%= f.collection_select(:language, @languages, :id, :name, prompt: "Por favor informe o idioma do objeto ") %><br>
 
             <%= f.label :author, "Autor" %>
             <%= f.text_field :author, class: "form-control" %><br>

config/initializers/repositories.rb

@@ -4,6 +4,7 @@ orientdb_client = OrientdbService.create_client
 
 repositories = {
     learning_object: OrientDb::LearningObjectRepository.new(orientdb_client),
+    language: OrientDb::LanguageRepository.new(orientdb_client),
     user: UserRepositoryProxy.new(OrientDb::UserRepository.new(orientdb_client)),
     subject: OrientDb::SubjectRepository.new(orientdb_client),
     institution: OrientDb::InstitutionRepository.new(orientdb_client),