issue alaashafaee#210 Fixing internal errors

tutor/app/controllers/hints_controller.rb

@@ -41,6 +41,6 @@ def create
 	private
 	def permitCreate
 		params.require(:Hint).permit(:submission_counter, :message)
-		
+
 	end
 end

tutor/app/models/hint.rb

@@ -1,13 +1,11 @@
 class Hint < ActiveRecord::Base
-	
+
 	#Validations
+	validates :message, presence: true 
+	validates :submission_counter, presence: true, numericality: {
+		only_integer: true, greater_than_or_equal_to: 0, message: "is not valid"}
 
 	#Relations
 	belongs_to :model_answer
 	belongs_to :owner, polymorphic: true
-
-	#Scoops
-
-	#Methods
-
 end

tutor/app/views/hints/edit.html.erb

@@ -0,0 +1,23 @@
+<% if flash[:notice] -%>
+	<div class="alert alert-warning", style="width:180px;display:inline">
+		<%= flash[:notice] %>
+	</div>
+<% end %>	
+<br/>
+<br/>
+<br/>	
+<!-- Rendering the form fields -->
+<%= form_for @new_tip, url:{:controller => "hints", action:"update"} do  |f| %> 
+		<%= f.hidden_field :id, value: params[:id] %>
+		<p>
+			<%= f.label "Hint description" %><br>
+			<%= f.text_area :message, :cols => "100", :rows => "8", autofocus:true, class:"form-control", style:"width:300px", value:Hint.find_by_id(params[:id]).message %>
+		</p>
+		<p>
+			<%= f.label :"The number of wrong submissions that hint appears after"  %><br>
+			<%= f.text_area :submission_counter, :rows => "1", class:"form-control", style: "width:300px", value:Hint.find_by_id(params[:id]).submission_counter %>
+		</p>
+		<p>
+			<%= f.submit"Save", class:"btn btn-success"%>
+		</p>
+<% end %>

tutor/config/routes.rb

@@ -39,6 +39,7 @@
 	resources :model_answers
 	resources :solutions
 	resources :topics
+	resources :hints
 	resources :lecturers
 	resources :teaching_assistants
 	resources :students