Add solution field to GradingController.show

Author: indocomsoft

lib/cadet_web/controllers/grading_controller.ex

@@ -160,7 +160,8 @@ defmodule CadetWeb.GradingController do
       GradingInfo:
         swagger_schema do
           description(
-            "A list of questions with submitted answers and previous grading info if available"
+            "A list of questions with submitted answers, solution and previous grading info " <>
+              "if available"
           )
 
           type(:array)
@@ -171,6 +172,12 @@ defmodule CadetWeb.GradingController do
                 question(Schema.ref(:Question))
                 grade(Schema.ref(:Grade))
 
+                solution(
+                  :string,
+                  "the marking scheme and model solution to this question. Only available for programming questions",
+                  required: true
+                )
+
                 maxGrade(
                   :integer,
                   "the max grade that can be given to this question",

lib/cadet_web/views/grading_view.ex

@@ -35,6 +35,7 @@ defmodule CadetWeb.GradingView do
           &1.answer["code"] || &1.answer["choice_id"]
         ),
       maxGrade: & &1.question.max_grade,
+      solution: &(&1.question.question["solution"] || ""),
       grade: &transform_map_for_view(&1, [:grade, :adjustment, :comment])
     })
   end

test/cadet_web/controllers/grading_controller_test.exs

@@ -144,6 +144,7 @@ defmodule CadetWeb.GradingControllerTest do
                   "content" => &1.question.question.content,
                   "answer" => &1.answer.code
                 },
+                "solution" => &1.question.question.solution,
                 "maxGrade" => &1.question.max_grade,
                 "grade" => %{
                   "grade" => &1.grade,
@@ -176,6 +177,7 @@ defmodule CadetWeb.GradingControllerTest do
                       }
                     end
                 },
+                "solution" => "",
                 "maxGrade" => &1.question.max_grade,
                 "grade" => %{
                   "grade" => &1.grade,