Sudo Autocomplete

app/controllers/course_user_data_controller.rb

@@ -190,20 +190,18 @@ def sudo
       redirect_to([@cud.course]) && return
     end
 
-    return unless request.post?
+    @users, @usersEncoded = @course.get_autocomplete_data
 
-    sudo_user = User.where(email: params[:sudo_email]).first
-    unless sudo_user
-      flash[:error] = "User #{params[:sudo_email]} does not exist"
-      redirect_to(action: :sudo) && return
-    end
+    return unless request.post?
 
-    sudo_cud = @course.course_user_data.where(user_id: sudo_user.id).first
+    sudo_cud = @course.course_user_data.where(id: params[:sudo_id]).first
     unless sudo_cud
-      flash[:error] = "User #{params[:sudo_email]} does not exist in the course"
+      flash[:error] = "User does not exist in the course"
       redirect_to(action: :sudo) && return
     end
 
+    sudo_user = User.where(id: sudo_cud.user_id).first
+
     unless @cud.can_sudo_to?(sudo_cud)
       flash[:error] = "You do not have the privileges to act as " \
               "#{sudo_cud.display_name}"

app/models/course.rb

@@ -267,7 +267,7 @@ def asmts_before_date(date)
     asmts.where("due_at < ?", date)
   end
 
-  # Used by manage extensions and create submission
+  # Used by manage extensions, create submission, and sudo
   def get_autocomplete_data
     users = {}
     usersEncoded = {}

app/views/course_user_data/sudo.html.erb

@@ -1,10 +1,19 @@
+<% content_for :javascripts do %>
+  <%= render partial: "components/autocomplete", locals: { hiddenCUDField: "#sudo_id" } %>
+<% end %>
+
 <h2>Act as User</h2>
 
 <p>You can use sudo to examine how Autolab appears to other users. You can also change your permission levels to see what your course assistants or students generically see.</p>
 
 <p>
 <%= form_tag do %>
-  Act as user (email): <%= email_field_tag :sudo_email %>
+  <p><b>Act as user (email):</b></p>
+  <div class="input-field">
+    <input type="text" size="3" id="student_autocomplete" class="autocomplete" autocomplete="off"/>
+    <label for="student_autocomplete">Start typing student name or email</label>
+  </div>
+  <%= hidden_field_tag(:sudo_id) %>
   <%= submit_tag "Sudo", {:value=>"Sudo", :class=> "btn primary"} %>
 <% end %>
 </p>

app/views/submissions/new.html.erb

@@ -29,7 +29,7 @@
   <div class="input-field">
     <input type="text" size="3" id="student_autocomplete" class="autocomplete" autocomplete="off"/>
     <label for="student_autocomplete">Start typing student name or email</label>
-  </div><br>
+  </div>
   <%= f.hidden_field(:course_user_datum_id)%>
 
   <% else %>