remove checksum

app/services/proforma_service/convert_exercise_to_task.rb

@@ -26,8 +26,7 @@ module ProformaService
           tests: tests,
           uuid: uuid,
           language: DEFAULT_LANGUAGE,
-          model_solutions: model_solutions,
-          import_checksum: @exercise.import_checksum
+          model_solutions: model_solutions
         }.compact
       )
     end

app/services/proforma_service/convert_task_to_exercise.rb

@@ -21,8 +21,7 @@ module ProformaService
         title: @task.title,
         description: @task.description,
         instructions: @task.internal_description,
-        files: files,
-        import_checksum: @task.checksum
+        files: files
       )
     end
 

db/migrate/20190905152630_add_import_checksum_to_exercises.rb

@@ -1,5 +0,0 @@
-class AddImportChecksumToExercises < ActiveRecord::Migration[5.2]
-  def change
-    add_column :exercises, :import_checksum, :string
-  end
-end

db/schema.rb

@@ -153,7 +153,6 @@ ActiveRecord::Schema.define(version: 2019_10_08_163045) do
     t.boolean "allow_auto_completion", default: false
     t.integer "expected_difficulty", default: 1
     t.uuid "uuid"
-    t.string "import_checksum"
     t.boolean "unpublished", default: false
     t.index ["id"], name: "index_exercises_on_id"
   end

spec/services/proforma_service/convert_exercise_to_task_spec.rb

@@ -40,8 +40,7 @@ RSpec.describe ProformaService::ConvertExerciseToTask do
         # parent_uuid: exercise.clone_relations.first&.origin&.uuid,
         files: [],
         tests: [],
-        model_solutions: [],
-        import_checksum: exercise.import_checksum
+        model_solutions: []
       )
     end
 

spec/services/proforma_service/convert_task_to_exercise_spec.rb

@@ -39,9 +39,7 @@ describe ProformaService::ConvertTaskToExercise do
         language: 'language',
         model_solutions: model_solutions,
         files: files,
-        tests: tests,
-        import_checksum: 'import_checksum',
-        checksum: 'checksum'
+        tests: tests
       )
     end
     let(:user) { FactoryBot.create(:teacher) }

spec/support/expectations/equal_exercise.rb

@@ -37,6 +37,6 @@ RSpec::Matchers.define :be_an_equal_exercise_as do |exercise|
   def attributes_and_associations(object)
     object.attributes.dup.tap do |attributes|
       attributes[:files] = object.files if defined? object.files
-    end.except('id', 'created_at', 'updated_at', 'exercise_id', 'uuid', 'import_checksum')
+    end.except('id', 'created_at', 'updated_at', 'exercise_id', 'uuid')
   end
 end