Compile a full dump of the students answers

mentoring/__init__.py

 from .answer import AnswerBlock
+from .dataviewer import MentoringDataViewerBlock
 from .quizz import QuizzBlock, QuizzTipBlock
-from .table import MentoringTableBlock, MentoringTableColumnBlock
 from .mentoring import MentoringBlock
+from .table import MentoringTableBlock, MentoringTableColumnBlock

mentoring/answer.py

@@ -101,7 +101,7 @@ class AnswerBlock(XBlock):
         if not name:
             raise ValueError, 'AnswerBlock.name field need to be set to a non-null/empty value'
 
-        # TODO Use a random user id
+        # TODO Use anonymous_user_id
         student_id = self.scope_ids.user_id
 
         answer_data, created = Answer.objects.get_or_create(

mentoring/dataviewer.py

+# -*- coding: utf-8 -*-
+
+# Imports ###########################################################
+
+import logging
+import json
+
+from webob import Response
+from xblock.core import XBlock
+from xblock.fragment import Fragment
+
+from .models import Answer
+from .utils import load_resource, render_template
+
+
+# Globals ###########################################################
+
+log = logging.getLogger(__name__)
+
+
+# Classes ###########################################################
+
+class MentoringDataViewerBlock(XBlock):
+    """
+    An XBlock allowing the instructor team to read/export all the student answers
+    """
+
+    def student_view(self, context):
+        html = render_template('templates/html/dataviewer.html', {
+            'self': self,
+        })
+
+        fragment = Fragment(html)
+        fragment.add_javascript(load_resource('static/js/vendor/jquery.handsontable.full.js'))
+        fragment.add_javascript(load_resource('static/js/dataviewer.js'))
+        fragment.add_css(load_resource('static/css/vendor/jquery.handsontable.full.css'))
+        fragment.add_css(load_resource('static/css/dataviewer.css'))
+
+        fragment.initialize_js('MentoringDataViewerBlock')
+
+        return fragment
+
+    def studio_view(self, context):
+        return Fragment(u'Studio view body')
+
+    @XBlock.handler
+    def get_data(self, request, suffix=''):
+        response_json = json.dumps({'data': self.get_data_list()})
+        return Response(response_json, content_type='application/json')
+
+    def get_data_list(self):
+        answers = Answer.objects.all().order_by('student_id', 'name')
+        answers_names = Answer.objects.values_list('name', flat=True).distinct().order_by('name')
+
+        data = [['student_id'] + list(answers_names)]
+        row = []
+        cur_student_id = None
+        cur_col = None
+        for answer in answers:
+            if answer.student_id != cur_student_id:
+                if row:
+                    data.append(row)
+                row = [answer.student_id]
+                cur_student_id = answer.student_id
+                cur_col = 0
+            while answer.name != answers_names[cur_col]:
+                row.append('')
+                cur_col += 1
+            row.append(answer.student_input)
+            cur_col += 1
+        if row:
+            data.append(row)
+
+        return data
+
+    @staticmethod
+    def workbench_scenarios():
+        """
+        Sample scenarios which will be displayed in the workbench
+        """
+        return [
+            ("Mentoring - Page 999, Intructors data viewer",
+                                    load_resource('templates/xml/999_dataviewer.xml')),
+        ]

setup.py

@@ -2,6 +2,7 @@ from setuptools import setup
 
 BLOCKS = [
     'mentoring = mentoring:MentoringBlock',
+    'mentoring-dataviewer = mentoring:MentoringDataViewerBlock',
     'mentoring-table = mentoring:MentoringTableBlock',
     'column = mentoring:MentoringTableColumnBlock',
     'answer = mentoring:AnswerBlock',

static/css/dataviewer.css

+.mentoring-dataviewer .mentoring-dataviewer-table {
+    overflow: scroll;
+    margin: 10px;
+}

static/js/dataviewer.js

+function MentoringDataViewerBlock(runtime, element) {
+    var handlerUrl = runtime.handlerUrl(element, 'get_data');
+
+    $.get(handlerUrl, function(result) {
+        $('.mentoring-dataviewer .mentoring-dataviewer-table', element).handsontable({
+            data: result.data,
+            colWidths: 300,
+            rowHeaders: true,
+            colHeaders: true,
+            stretchH: 'all'
+        });
+    }, 'json');
+}

static/js/mentoring.js

@@ -39,7 +39,7 @@ function MentoringBlock(runtime, element) {
                 data[child.name] = callIfExists(child, 'submit');
             }
         }
-        var handlerUrl = runtime.handlerUrl(element, 'submit')
+        var handlerUrl = runtime.handlerUrl(element, 'submit');
         $.post(handlerUrl, JSON.stringify(data)).success(handleSubmitResults);
     });
 

templates/html/dataviewer.html

+<div class="mentoring-dataviewer">
+  <div class="mentoring-dataviewer-table"></div>
+</div>

templates/xml/999_dataviewer.xml

+<vertical>
+    <html>
+        <h3>Answers data</h3>
+    </html>
+    <mentoring-dataviewer></mentoring-dataviewer>
+</vertical>