MDL-28183 add num parts correct and clear wrong to multianswer

question/format/xml/format.php

@@ -471,7 +471,7 @@ public function import_multianswer($question) {
             $qo->penalty = 0.3333333;
         }
 
-        $this->import_hints($qo, $question, false, false, $this->get_format($qo->questiontextformat));
+        $this->import_hints($qo, $question, true, false, $this->get_format($qo->questiontextformat));
 
         return $qo;
     }

question/type/multianswer/edit_multianswer_form.php

@@ -248,7 +248,7 @@ protected function definition_inner($mform) {
             $mform->addElement('hidden', 'confirm', 0);
         }
 
-        $this->add_interactive_settings();
+        $this->add_interactive_settings(true, true);
     }
 
 
@@ -419,7 +419,7 @@ public function set_data($question) {
         if ($default_values != "") {
             $question = (object)((array)$question + $default_values);
         }
-        $question = $this->data_preprocessing_hints($question);
+        $question = $this->data_preprocessing_hints($question, true, true);
         parent::set_data($question);
     }
 

question/type/multianswer/question.php

@@ -231,6 +231,38 @@ public function grade_response(array $response) {
         return array($fractionsum / $fractionmax, $overallstate);
     }
 
+    public function clear_wrong_from_response(array $response) {
+        foreach ($this->subquestions as $i => $subq) {
+            $substep = $this->get_substep(null, $i);
+            $subresp = $substep->filter_array($response);
+            list($subfraction, $newstate) = $subq->grade_response($subresp);
+            if ($newstate != question_state::$gradedright) {
+                foreach ($subresp as $ind => $resp) {
+                    if (($subq->layout == qtype_multichoice_base::LAYOUT_VERTICAL) 
+                            || ($subq->layout == qtype_multichoice_base::LAYOUT_HORIZONTAL)) {
+                        $response[$substep->add_prefix($ind)] = '-1';
+                    } else {
+                        $response[$substep->add_prefix($ind)] = '';
+                    }
+                }
+            }
+        }
+        return $response;
+    }
+
+    public function get_num_parts_right(array $response) {
+        $numright = 0;
+        foreach ($this->subquestions as $i => $subq) {
+            $substep = $this->get_substep(null, $i);
+            $subresp = $substep->filter_array($response);
+            list($subfraction, $newstate) = $subq->grade_response($subresp);
+            if ($newstate == question_state::$gradedright) {
+                $numright += 1;
+            }
+        }
+        return array($numright, count($this->subquestions));
+    }
+
     public function summarise_response(array $response) {
         $summary = array();
         foreach ($this->subquestions as $i => $subq) {

question/type/multianswer/questiontype.php

@@ -165,7 +165,7 @@ public function save_question_options($question) {
             }
         }
 
-        $this->save_hints($question);
+        $this->save_hints($question, true);
     }
 
     public function save_question($authorizedquestion, $form) {
@@ -183,6 +183,10 @@ public function save_question($authorizedquestion, $form) {
         return parent::save_question($question, $form);
     }
 
+    protected function make_hint($hint) {
+        return question_hint_with_parts::load_from_record($hint);
+    }
+
     public function delete_question($questionid, $contextid) {
         global $DB;
         $DB->delete_records('question_multianswer', array('question' => $questionid));

question/type/multianswer/tests/helper.php

@@ -276,8 +276,10 @@ public function make_multianswer_question_fourmc() {
             $mc->layout = qtype_multichoice_base::LAYOUT_DROPDOWN;
 
             $mc->answers = array(
-                10 * $i     => new question_answer(13, 'California', $data['California'] == 'OK', $data['California'], FORMAT_HTML),
-                10 * $i + 1 => new question_answer(14, 'Arizona', $data['Arizona'] == 'OK', $data['Arizona'], FORMAT_HTML),
+                10 * $i     => new question_answer(13, 'California', (float) ($data['California'] == 'OK'),
+                        $data['California'], FORMAT_HTML),
+                10 * $i + 1 => new question_answer(14, 'Arizona', (float) ($data['Arizona'] == 'OK'),
+                        $data['Arizona'], FORMAT_HTML),
             );
             $mc->qtype = question_bank::get_qtype('multichoice');
             $mc->maxmark = 1;

question/type/multianswer/tests/question_test.php

@@ -114,4 +114,67 @@ public function test_summarise_response() {
                 array('i' => 2, 'response' => 'Pussy-cat')), $question->summarise_response(
                 array('sub1_answer' => 'Owl', 'sub2_answer' => reset($rightchoice))));
     }
-}
+
+    public function test_get_num_parts_right() {
+        $question = test_question_maker::make_question('multianswer');
+        $question->start_attempt(new question_attempt_step(), 1);
+
+        $rightchoice = $question->subquestions[2]->get_correct_response();
+        $right = reset($rightchoice);
+
+        $response = array('sub1_answer' => 'Frog', 'sub2_answer' => $right);
+        list($numpartsright, $numparts) = $question->get_num_parts_right($response);
+        $this->assertEquals(1, $numpartsright);
+        $this->assertEquals(2, $numparts);
+        $response = array('sub1_answer' => 'Owl', 'sub2_answer' => $right);
+        list($numpartsright, $numparts) = $question->get_num_parts_right($response);
+        $this->assertEquals(2, $numpartsright);
+        $response = array('sub1_answer' => 'Dog', 'sub2_answer' => 3);
+        list($numpartsright, $numparts) = $question->get_num_parts_right($response);
+        $this->assertEquals(0, $numpartsright);
+        $response = array('sub1_answer' => 'Owl');
+        list($numpartsright, $numparts) = $question->get_num_parts_right($response);
+        $this->assertEquals(1, $numpartsright);
+        $response = array('sub1_answer' => 'Dog');
+        list($numpartsright, $numparts) = $question->get_num_parts_right($response);
+        $this->assertEquals(0, $numpartsright);
+        $response = array('sub2_answer' => $right);
+        list($numpartsright, $numparts) = $question->get_num_parts_right($response);
+        $this->assertEquals(1, $numpartsright);
+    }
+
+    public function test_get_num_parts_right_fourmc() {
+        // Create a multianswer question with four mcq.
+        $question = test_question_maker::make_question('multianswer', 'fourmc');
+        $question->start_attempt(new question_attempt_step(), 1);
+
+        $response = array('sub1_answer' => '1', 'sub2_answer' => '1',
+                'sub3_answer' => '1', 'sub4_answer' => '1');
+        list($numpartsright, $numparts) = $question->get_num_parts_right($response);
+        $this->assertEquals(2, $numpartsright);
+    }
+
+    public function test_clear_wrong_from_response() {
+        $question = test_question_maker::make_question('multianswer');
+        $question->start_attempt(new question_attempt_step(), 1);
+
+        $rightchoice = $question->subquestions[2]->get_correct_response();
+        $right = reset($rightchoice);
+
+        $response = array('sub1_answer' => 'Frog', 'sub2_answer' => $right);
+        $this->assertEquals($question->clear_wrong_from_response($response),
+                array('sub1_answer' => '', 'sub2_answer' => $right));
+        $response = array('sub1_answer' => 'Owl', 'sub2_answer' => $right);
+        $this->assertEquals($question->clear_wrong_from_response($response),
+                array('sub1_answer' => 'Owl', 'sub2_answer' => $right));
+        $response = array('sub1_answer' => 'Dog', 'sub2_answer' => 3);
+        $this->assertEquals($question->clear_wrong_from_response($response),
+                array('sub1_answer' => '', 'sub2_answer' => ''));
+        $response = array('sub1_answer' => 'Owl');
+        $this->assertEquals($question->clear_wrong_from_response($response),
+                array('sub1_answer' => 'Owl'));
+        $response = array('sub2_answer' => $right);
+        $this->assertEquals($question->clear_wrong_from_response($response),
+                array('sub2_answer' => $right));
+    }
+}

question/type/multianswer/tests/walkthrough_test.php

@@ -198,4 +198,128 @@ public function test_deferred_feedback_numericalzero_0_wrong() {
                 $this->get_contains_subq_status(question_state::$gradedwrong),
                 $this->get_does_not_contain_validation_error_expectation());
     }
+
+    public function test_interactive_feedback() {
+
+        // Create a multianswer question.
+        $q = test_question_maker::make_question('multianswer', 'fourmc');
+        $q->hints = array(
+            new question_hint_with_parts(11, 'This is the first hint.', FORMAT_HTML, false, true),
+            new question_hint_with_parts(12, 'This is the second hint.', FORMAT_HTML, true, true),
+        );
+        $choices = array('' => '', '0' => 'Califormia', '1' => 'Arizona');
+
+        $this->start_attempt_at_question($q, 'interactive', 4);
+
+        // Check the initial state.
+        $this->check_current_state(question_state::$todo);
+        $this->check_current_mark(null);
+        // TODO change to interactivecountback after MDL-36955 is integrated.
+        $this->assertEquals('interactive',
+                $this->quba->get_question_attempt($this->slot)->get_behaviour_name());
+        $this->check_current_output(
+                $this->get_contains_marked_out_of_summary(),
+                $this->get_contains_select_expectation('sub1_answer', $choices, null, true),
+                $this->get_contains_select_expectation('sub2_answer', $choices, null, true),
+                $this->get_contains_select_expectation('sub3_answer', $choices, null, true),
+                $this->get_contains_select_expectation('sub4_answer', $choices, null, true),
+                $this->get_contains_submit_button_expectation(true),
+                $this->get_does_not_contain_validation_error_expectation(),
+                $this->get_does_not_contain_feedback_expectation(),
+                $this->get_tries_remaining_expectation(3),
+                $this->get_does_not_contain_num_parts_correct(),
+                $this->get_no_hint_visible_expectation());
+
+        // Submit a completely wrong response.
+        $this->process_submission(array('sub1_answer' => '1', 'sub2_answer' => '0',
+                'sub3_answer' => '1', 'sub4_answer' => '0', '-submit' => 1));
+
+        // Verify.
+        $this->check_current_state(question_state::$todo);
+        $this->check_current_mark(null);
+        $this->check_current_output(
+                $this->get_contains_select_expectation('sub1_answer', $choices, 1, false),
+                $this->get_contains_select_expectation('sub2_answer', $choices, 0, false),
+                $this->get_contains_select_expectation('sub3_answer', $choices, 1, false),
+                $this->get_contains_select_expectation('sub4_answer', $choices, 0, false),
+                $this->get_does_not_contain_num_parts_correct(),
+                $this->get_contains_hidden_expectation(
+                        $this->quba->get_field_prefix($this->slot) . 'sub1_answer', ''),
+                $this->get_contains_hidden_expectation(
+                        $this->quba->get_field_prefix($this->slot) . 'sub2_answer', ''),
+                $this->get_contains_hidden_expectation(
+                        $this->quba->get_field_prefix($this->slot) . 'sub3_answer', ''),
+                $this->get_contains_hidden_expectation(
+                        $this->quba->get_field_prefix($this->slot) . 'sub4_answer', ''),
+                $this->get_contains_submit_button_expectation(false),
+                $this->get_contains_try_again_button_expectation(true),
+                $this->get_does_not_contain_correctness_expectation(),
+                $this->get_contains_hint_expectation('This is the first hint.'));
+
+        // Check that, if we review in this state, the try again button is disabled.
+        $displayoptions = new question_display_options();
+        $displayoptions->readonly = true;
+        $html = $this->quba->render_question($this->slot, $displayoptions);
+        $this->assert($this->get_contains_try_again_button_expectation(false), $html);
+
+        // Try again.
+        $this->process_submission(array('sub1_answer' => '',
+                'sub2_answer' => '', 'sub3_answer' => '',
+                'sub4_answer' => '', '-tryagain' => 1));
+
+        // Verify.
+        $this->check_current_state(question_state::$todo);
+        $this->check_current_mark(null);
+        $this->check_current_output(
+                $this->get_contains_select_expectation('sub1_answer', $choices, null, true),
+                $this->get_contains_select_expectation('sub2_answer', $choices, null, true),
+                $this->get_contains_select_expectation('sub3_answer', $choices, null, true),
+                $this->get_contains_select_expectation('sub4_answer', $choices, null, true),
+                $this->get_contains_submit_button_expectation(true),
+                $this->get_does_not_contain_feedback_expectation(),
+                $this->get_tries_remaining_expectation(2),
+                $this->get_no_hint_visible_expectation());
+
+        // Submit a partially wrong response.
+        $this->process_submission(array('sub1_answer' => '1', 'sub2_answer' => '1',
+                'sub3_answer' => '1', 'sub4_answer' => '1', '-submit' => 1));
+
+        // Verify.
+        $this->check_current_state(question_state::$todo);
+        $this->check_current_mark(null);
+        $this->check_current_output(
+                $this->get_contains_select_expectation('sub1_answer', $choices, 1, false),
+                $this->get_contains_select_expectation('sub2_answer', $choices, 1, false),
+                $this->get_contains_select_expectation('sub3_answer', $choices, 1, false),
+                $this->get_contains_select_expectation('sub4_answer', $choices, 1, false),
+                $this->get_contains_num_parts_correct(2),
+                $this->get_contains_hidden_expectation(
+                        $this->quba->get_field_prefix($this->slot) . 'sub1_answer', ''),
+                $this->get_contains_hidden_expectation(
+                        $this->quba->get_field_prefix($this->slot) . 'sub2_answer', '1'),
+                $this->get_contains_hidden_expectation(
+                        $this->quba->get_field_prefix($this->slot) . 'sub3_answer', ''),
+                $this->get_contains_hidden_expectation(
+                        $this->quba->get_field_prefix($this->slot) . 'sub4_answer', '1'),
+                $this->get_contains_submit_button_expectation(false),
+                $this->get_contains_hint_expectation('This is the second hint.'));
+
+        // Try again.
+        $this->process_submission(array('sub1_answer' => '',
+                'sub2_answer' => '1', 'sub3_answer' => '',
+                'sub4_answer' => '1', '-tryagain' => 1));
+
+        // Verify.
+        $this->check_current_state(question_state::$todo);
+        $this->check_current_mark(null);
+        $this->check_current_output(
+                $this->get_contains_select_expectation('sub1_answer', $choices, '', true),
+                $this->get_contains_select_expectation('sub2_answer', $choices, '1', true),
+                $this->get_contains_select_expectation('sub3_answer', $choices, '', true),
+                $this->get_contains_select_expectation('sub4_answer', $choices, '1', true),
+                $this->get_contains_submit_button_expectation(true),
+                $this->get_does_not_contain_feedback_expectation(),
+                $this->get_tries_remaining_expectation(1),
+                $this->get_no_hint_visible_expectation());
+    }
 }