fix: learn page

feat: Quizzes, Youtube Video integration and Other Minor Fixes

community/hooks.py

@@ -161,10 +161,10 @@ whitelist = [
     "/socket.io",
     "/hackathons",
     "/dashboard",
-    "/join-request"
+    "/join-request",
     "/add-a-new-batch",
     "/new-sign-up",
-    "/message"
+    "/message",
     "/about"
 ]
 whitelist_rules = [{"from_route": p, "to_route": p[1:]} for p in whitelist]
@@ -188,4 +188,8 @@ update_website_context = 'community.widgets.update_website_context'
 # community_lesson_page_extension = None
 
 ## Markdown Macros for Lessons
-# community_markdown_macro_renderers = {"Exercise": "myapp.mymodule.plugins.render_exercise"}
+community_markdown_macro_renderers = {
+	"Exercise": "community.plugins.exercise_renderer",
+	"Quiz": "community.plugins.quiz_renderer",
+	"YouTubeVideo": "community.plugins.youtube_video_renderer",
+}

community/lms/doctype/lesson/lesson.json

@@ -7,7 +7,6 @@
  "engine": "InnoDB",
  "field_order": [
   "chapter",
-  "lesson_type",
   "include_in_preview",
   "column_break_4",
   "title",
@@ -24,14 +23,6 @@
    "label": "Chapter",
    "options": "Chapter"
   },
-  {
-   "default": "Video",
-   "fieldname": "lesson_type",
-   "fieldtype": "Select",
-   "in_list_view": 1,
-   "label": "Lesson Type",
-   "options": "Video\nText\nQuiz"
-  },
   {
    "fieldname": "title",
    "fieldtype": "Data",
@@ -42,6 +33,7 @@
    "default": "1",
    "fieldname": "index_",
    "fieldtype": "Int",
+   "in_list_view": 1,
    "label": "Index"
   },
   {
@@ -52,7 +44,6 @@
   {
    "fieldname": "index_label",
    "fieldtype": "Data",
-   "in_list_view": 1,
    "label": "Index Label",
    "read_only": 1
   },
@@ -73,7 +64,7 @@
  ],
  "index_web_pages_for_search": 1,
  "links": [],
- "modified": "2021-06-11 19:03:23.138165",
+ "modified": "2021-06-23 17:59:52.946515",
  "modified_by": "Administrator",
  "module": "LMS",
  "name": "Lesson",

community/lms/doctype/lesson/lesson.py

@@ -9,27 +9,35 @@ from ...md import markdown_to_html, find_macros
 
 class Lesson(Document):
     def before_save(self):
-        macros = find_macros(self.body)
+        dynamic_documents = ["Exercise", "Quiz"]
-        exercises = [value for name, value in macros if name == "Exercise"]
+        for section in dynamic_documents:
+            self.update_lesson_name_in_document(section)
 
+    def update_lesson_name_in_document(self, section):
+        doctype_map= {
+            "Exercise": "Exercise",
+            "Quiz": "LMS Quiz"
+        }
+        macros = find_macros(self.body)
+        documents = [value for name, value in macros if name == section]
         index = 1
-        for name in exercises:
+        for name in documents:
-            e = frappe.get_doc("Exercise", name)
+            e = frappe.get_doc(doctype_map[section], name)
             e.lesson = self.name
             e.index_ = index
             e.save()
             index += 1
-        self.update_orphan_exercises(exercises)
+        self.update_orphan_documents(doctype_map[section], documents)
 
-    def update_orphan_exercises(self, active_exercises):
+    def update_orphan_documents(self, doctype, documents):
-        """Updates the exercises that were previously part of this lesson,
+        """Updates the documents that were previously part of this lesson,
         but not any more.
         """
-        linked_exercises = {row['name'] for row in frappe.get_all('Exercise', {"lesson": self.name})}
+        linked_documents = {row['name'] for row in frappe.get_all(doctype, {"lesson": self.name})}
-        active_exercises = set(active_exercises)
+        active_documents = set(documents)
-        orphan_exercises = linked_exercises - active_exercises
+        orphan_documents = linked_documents - active_documents
-        for name in orphan_exercises:
+        for name in orphan_documents:
-            ex = frappe.get_doc("Exercise", name)
+            ex = frappe.get_doc(doctype, name)
             ex.lesson = None
             ex.index_ = 0
             ex.index_label = ""
@@ -92,13 +100,30 @@ def update_progress(lesson):
         course_progress.save(ignore_permissions=True)
 
 def all_dynamic_content_submitted(lesson, user):
+    all_exercises_submitted = check_all_exercise_submission(lesson, user)
+    all_quiz_submitted = check_all_quiz_submitted(lesson, user)
+    return all_exercises_submitted and all_quiz_submitted
+
+def check_all_exercise_submission(lesson, user):
     exercise_names = frappe.get_list("Exercise", {"lesson": lesson}, pluck="name", ignore_permissions=True)
-    all_exercises_submitted = False
+    if not len(exercise_names):
+        return True
     query = {
         "exercise": ["in", exercise_names],
         "owner": user
     }
     if frappe.db.count("Exercise Submission", query) == len(exercise_names):
-        all_exercises_submitted = True
+        return True
+    return False
 
-    return all_exercises_submitted
+def check_all_quiz_submitted(lesson, user):
+    quizzes = frappe.get_list("LMS Quiz", {"lesson": lesson}, pluck="name", ignore_permissions=True)
+    if not len(quizzes):
+        return True
+    query = {
+        "quiz": ["in", quizzes],
+        "owner": user
+    }
+    if frappe.db.count("LMS Quiz Submission", query) == len(quizzes):
+        return True
+    return False

community/lms/doctype/lms_batch_membership/lms_batch_membership.py

@@ -32,20 +32,28 @@ class LMSBatchMembership(Document):
             frappe.throw(_("{0} is already a {1} of the course {2}").format(member_name, previous_membership.member_type, course_title))
 
     def validate_membership_in_different_batch_same_course(self):
+        """Ensures that a studnet is only part of one batch.
+        """
+        # nothing to worry if the member is not a student
+        if self.member_type != "Student":
+            return
+
         course = frappe.db.get_value("LMS Batch", self.batch, "course")
-        previous_membership = frappe.get_all("LMS Batch Membership",
+        memberships = frappe.get_all(
+            "LMS Batch Membership",
             filters={
                 "member": self.member,
-                                        "name": ["!=", self.name]
+                "name": ["!=", self.name],
+                "member_type": "Student",
+                "course": self.course
             },
             fields=["batch", "member_type", "name"]
         )
 
-        for membership in previous_membership:
+        if memberships:
-            batch_course = frappe.db.get_value("LMS Batch", membership.batch, "course")
+            membership = memberships[0]
-            if batch_course == course and (membership.member_type == "Student" or self.member_type == "Student"):
             member_name = frappe.db.get_value("User", self.member, "full_name")
-                frappe.throw(_("{0} is already a {1} of {2} course through {3} batch").format(member_name, membership.member_type, course, membership.batch))
+            frappe.throw(_("{0} is already a Student of {1} course through {2} batch").format(member_name, course, membership.batch))
 
 @frappe.whitelist()
 def create_membership(course, batch=None, member=None, member_type="Student", role="Member"):

community/lms/doctype/lms_course/lms_course.py

@@ -199,13 +199,15 @@ class LMSCourse(Document):
         }
         if batch:
             filters["batch"] = batch
-        return frappe.db.get_value("LMS Batch Membership", filters, ["name","batch", "current_lesson"], as_dict=True)
+        membership = frappe.db.get_value("LMS Batch Membership", filters, ["name","batch", "current_lesson"], as_dict=True)
+        if membership and membership.batch:
+            membership.batch_title = frappe.db.get_value("LMS Batch", membership.batch, "title")
+        return membership
 
-    def get_all_memberships(self, member=frappe.session.user):
+    def get_all_memberships(self, member):
         all_memberships = frappe.get_all("LMS Batch Membership", {"member": member, "course": self.name}, ["batch"])
         for membership in all_memberships:
             membership.batch_title = frappe.db.get_value("LMS Batch", membership.batch, "title")
-        print(all_memberships)
         return all_memberships
 
     def get_mentors(self, batch=None):

community/lms/doctype/lms_option/lms_option.json

@@ -0,0 +1,36 @@
+{
+ "actions": [],
+ "creation": "2021-06-07 10:46:10.402684",
+ "doctype": "DocType",
+ "editable_grid": 1,
+ "engine": "InnoDB",
+ "field_order": [
+  "option",
+  "is_correct"
+ ],
+ "fields": [
+  {
+   "fieldname": "option",
+   "fieldtype": "Data",
+   "label": "Option"
+  },
+  {
+   "default": "0",
+   "fieldname": "is_correct",
+   "fieldtype": "Check",
+   "label": "Is Correct"
+  }
+ ],
+ "index_web_pages_for_search": 1,
+ "istable": 1,
+ "links": [],
+ "modified": "2021-06-07 10:48:45.290227",
+ "modified_by": "Administrator",
+ "module": "LMS",
+ "name": "LMS Option",
+ "owner": "Administrator",
+ "permissions": [],
+ "sort_field": "modified",
+ "sort_order": "DESC",
+ "track_changes": 1
+}

community/lms/doctype/lms_option/lms_option.py

@@ -0,0 +1,8 @@
+# Copyright (c) 2021, FOSS United and contributors
+# For license information, please see license.txt
+
+# import frappe
+from frappe.model.document import Document
+
+class LMSOption(Document):
+	pass

community/lms/doctype/lms_quiz/lms_quiz.js

@@ -0,0 +1,8 @@
+// Copyright (c) 2021, FOSS United and contributors
+// For license information, please see license.txt
+
+frappe.ui.form.on('LMS Quiz', {
+	// refresh: function(frm) {
+
+	// }
+});

community/lms/doctype/lms_quiz/lms_quiz.json

@@ -0,0 +1,57 @@
+{
+ "actions": [],
+ "autoname": "field:title",
+ "creation": "2021-06-07 10:50:17.893625",
+ "doctype": "DocType",
+ "editable_grid": 1,
+ "engine": "InnoDB",
+ "field_order": [
+  "title",
+  "questions",
+  "lesson"
+ ],
+ "fields": [
+  {
+   "fieldname": "title",
+   "fieldtype": "Data",
+   "label": "Title",
+   "unique": 1
+  },
+  {
+   "fieldname": "questions",
+   "fieldtype": "Table",
+   "label": "Questions",
+   "options": "LMS Quiz Question"
+  },
+  {
+   "fieldname": "lesson",
+   "fieldtype": "Link",
+   "label": "Lesson",
+   "options": "Lesson"
+  }
+ ],
+ "index_web_pages_for_search": 1,
+ "links": [],
+ "modified": "2021-06-23 17:58:57.642873",
+ "modified_by": "Administrator",
+ "module": "LMS",
+ "name": "LMS Quiz",
+ "owner": "Administrator",
+ "permissions": [
+  {
+   "create": 1,
+   "delete": 1,
+   "email": 1,
+   "export": 1,
+   "print": 1,
+   "read": 1,
+   "report": 1,
+   "role": "System Manager",
+   "share": 1,
+   "write": 1
+  }
+ ],
+ "sort_field": "modified",
+ "sort_order": "DESC",
+ "track_changes": 1
+}

community/lms/doctype/lms_quiz/lms_quiz.py

@@ -0,0 +1,79 @@
+# Copyright (c) 2021, FOSS United and contributors
+# For license information, please see license.txt
+
+from community.lms.doctype.lesson.lesson import update_progress
+import frappe
+from frappe.model.document import Document
+import json
+from frappe import _
+from ..lesson.lesson import update_progress
+
+class LMSQuiz(Document):
+    def validate(self):
+        self.validate_correct_answers()
+
+    def validate_correct_answers(self):
+        for question in self.questions:
+            correct_options = self.get_correct_options(question)
+
+            if len(correct_options) > 1:
+                question.multiple = 1
+
+            if not len(correct_options):
+                frappe.throw(_("At least one answer must be correct for this question: {0}").format(frappe.bold(question.question)))
+
+    def get_correct_options(self, question):
+        correct_option_fields = ["is_correct_1", "is_correct_2", "is_correct_3", "is_correct_4"]
+        return list(filter(lambda x: question.get(x) == 1, correct_option_fields))
+
+    def get_last_submission_details(self):
+        """Returns the latest submission for this user.
+        """
+        user = frappe.session.user
+        if not user or user == "Guest":
+            return
+
+        result = frappe.get_all('LMS Quiz Submission',
+            fields="*",
+            filters={
+                "owner": user,
+                "quiz": self.name
+            },
+            order_by="creation desc",
+            page_length=1)
+
+        if result:
+            return result[0]
+
+@frappe.whitelist()
+def submit(quiz, result):
+    score = 0
+    answer_map = {
+        "is_correct_1": "option_1",
+        "is_correct_2": "option_2",
+        "is_correct_3": "option_3",
+        "is_correct_4": "option_4"
+    }
+    result = json.loads(result)
+    quiz_details = frappe.get_doc("LMS Quiz", quiz)
+
+    for response in result:
+        match = list(filter(lambda x: x.question == response.get("question"), quiz_details.questions))[0]
+        correct_options = quiz_details.get_correct_options(match)
+        correct_answers = [ match.get(answer_map[option]) for option in correct_options ]
+
+        if response.get("answer") == correct_answers:
+            response["result"] = "Right"
+            score += 1
+        else:
+            response["result"] = "Wrong"
+        response["answer"] = ("").join([ ans if idx == len(response.get("answer")) -1 else ans + ", "  for idx, ans in enumerate(response.get("answer")) ])
+
+    frappe.get_doc({
+        "doctype": "LMS Quiz Submission",
+        "quiz": quiz,
+        "result": result,
+        "score": score
+    }).save(ignore_permissions=True)
+    update_progress(quiz_details.lesson)
+    return score

community/lms/doctype/lms_quiz/test_lms_quiz.py

@@ -0,0 +1,8 @@
+# Copyright (c) 2021, FOSS United and Contributors
+# See license.txt
+
+# import frappe
+import unittest
+
+class TestLMSQuiz(unittest.TestCase):
+	pass

community/lms/doctype/lms_quiz_question/lms_quiz_question.json

@@ -0,0 +1,118 @@
+{
+ "actions": [],
+ "creation": "2021-06-07 10:48:57.994714",
+ "doctype": "DocType",
+ "editable_grid": 1,
+ "engine": "InnoDB",
+ "field_order": [
+  "question",
+  "options_section",
+  "option_1",
+  "is_correct_1",
+  "section_break_5",
+  "option_2",
+  "is_correct_2",
+  "column_break_4",
+  "option_3",
+  "is_correct_3",
+  "section_break_11",
+  "option_4",
+  "is_correct_4",
+  "multiple"
+ ],
+ "fields": [
+  {
+   "fieldname": "question",
+   "fieldtype": "Text",
+   "in_list_view": 1,
+   "label": "Question",
+   "reqd": 1
+  },
+  {
+   "fieldname": "option_1",
+   "fieldtype": "Data",
+   "label": "Option 1",
+   "reqd": 1
+  },
+  {
+   "fieldname": "option_2",
+   "fieldtype": "Data",
+   "label": "Option 2",
+   "reqd": 1
+  },
+  {
+   "fieldname": "option_3",
+   "fieldtype": "Data",
+   "label": "Option 3"
+  },
+  {
+   "fieldname": "option_4",
+   "fieldtype": "Data",
+   "label": "Option 4"
+  },
+  {
+   "default": "0",
+   "depends_on": "option_1",
+   "fieldname": "is_correct_1",
+   "fieldtype": "Check",
+   "label": "Is Correct"
+  },
+  {
+   "default": "0",
+   "depends_on": "option_2",
+   "fieldname": "is_correct_2",
+   "fieldtype": "Check",
+   "label": "Is Correct"
+  },
+  {
+   "default": "0",
+   "depends_on": "option_3",
+   "fieldname": "is_correct_3",
+   "fieldtype": "Check",
+   "label": "Is Correct"
+  },
+  {
+   "default": "0",
+   "depends_on": "option_4",
+   "fieldname": "is_correct_4",
+   "fieldtype": "Check",
+   "label": "Is Correct"
+  },
+  {
+   "default": "0",
+   "fieldname": "multiple",
+   "fieldtype": "Check",
+   "hidden": 1,
+   "label": "Multiple Correct Answers",
+   "read_only": 1
+  },
+  {
+   "fieldname": "options_section",
+   "fieldtype": "Section Break"
+  },
+  {
+   "fieldname": "column_break_4",
+   "fieldtype": "Section Break"
+  },
+  {
+   "fieldname": "section_break_5",
+   "fieldtype": "Section Break"
+  },
+  {
+   "fieldname": "section_break_11",
+   "fieldtype": "Section Break"
+  }
+ ],
+ "index_web_pages_for_search": 1,
+ "istable": 1,
+ "links": [],
+ "modified": "2021-06-22 16:54:13.133859",
+ "modified_by": "Administrator",
+ "module": "LMS",
+ "name": "LMS Quiz Question",
+ "owner": "Administrator",
+ "permissions": [],
+ "sort_field": "modified",
+ "sort_order": "DESC",
+ "track_changes": 1
+}

community/lms/doctype/lms_quiz_question/lms_quiz_question.py

@@ -0,0 +1,8 @@
+# Copyright (c) 2021, FOSS United and contributors
+# For license information, please see license.txt
+
+# import frappe
+from frappe.model.document import Document
+
+class LMSQuizQuestion(Document):
+	pass

community/lms/doctype/lms_quiz_result/lms_quiz_result.json

@@ -0,0 +1,45 @@
+{
+ "actions": [],
+ "creation": "2021-06-07 14:19:23.683323",
+ "doctype": "DocType",
+ "editable_grid": 1,
+ "engine": "InnoDB",
+ "field_order": [
+  "question",
+  "answer",
+  "result"
+ ],
+ "fields": [
+  {
+   "fieldname": "question",
+   "fieldtype": "Data",
+   "in_list_view": 1,
+   "label": "Question"
+  },
+  {
+   "fieldname": "result",
+   "fieldtype": "Select",
+   "in_list_view": 1,
+   "label": "Result",
+   "options": "Right\nWrong"
+  },
+  {
+   "fieldname": "answer",
+   "fieldtype": "Data",
+   "in_list_view": 1,
+   "label": "Users Response"
+  }
+ ],
+ "index_web_pages_for_search": 1,
+ "istable": 1,
+ "links": [],
+ "modified": "2021-06-22 18:32:28.813159",
+ "modified_by": "Administrator",
+ "module": "LMS",
+ "name": "LMS Quiz Result",
+ "owner": "Administrator",
+ "permissions": [],
+ "sort_field": "modified",
+ "sort_order": "DESC",
+ "track_changes": 1
+}

community/lms/doctype/lms_quiz_result/lms_quiz_result.py

@@ -0,0 +1,8 @@
+# Copyright (c) 2021, FOSS United and contributors
+# For license information, please see license.txt
+
+# import frappe
+from frappe.model.document import Document
+
+class LMSQuizResult(Document):
+	pass

community/lms/doctype/lms_quiz_submission/lms_quiz_submission.js

@@ -0,0 +1,8 @@
+// Copyright (c) 2021, FOSS United and contributors
+// For license information, please see license.txt
+
+frappe.ui.form.on('LMS Quiz Submission', {
+	// refresh: function(frm) {
+
+	// }
+});

community/lms/doctype/lms_quiz_submission/lms_quiz_submission.json

@@ -0,0 +1,55 @@
+{
+ "actions": [],
+ "creation": "2021-06-07 14:19:54.958989",
+ "doctype": "DocType",
+ "editable_grid": 1,
+ "engine": "InnoDB",
+ "field_order": [
+  "quiz",
+  "result",
+  "score"
+ ],
+ "fields": [
+  {
+   "fieldname": "quiz",
+   "fieldtype": "Link",
+   "label": "Quiz",
+   "options": "LMS Quiz"
+  },
+  {
+   "fieldname": "result",
+   "fieldtype": "Table",
+   "label": "Result",
+   "options": "LMS Quiz Result"
+  },
+  {
+   "fieldname": "score",
+   "fieldtype": "Data",
+   "label": "Score"
+  }
+ ],
+ "index_web_pages_for_search": 1,
+ "links": [],
+ "modified": "2021-06-07 14:19:54.958989",
+ "modified_by": "Administrator",
+ "module": "LMS",
+ "name": "LMS Quiz Submission",
+ "owner": "Administrator",
+ "permissions": [
+  {
+   "create": 1,
+   "delete": 1,
+   "email": 1,
+   "export": 1,
+   "print": 1,
+   "read": 1,
+   "report": 1,
+   "role": "System Manager",
+   "share": 1,
+   "write": 1
+  }
+ ],
+ "sort_field": "modified",
+ "sort_order": "DESC",
+ "track_changes": 1
+}

community/lms/doctype/lms_quiz_submission/lms_quiz_submission.py

@@ -0,0 +1,8 @@
+# Copyright (c) 2021, FOSS United and contributors
+# For license information, please see license.txt
+
+# import frappe
+from frappe.model.document import Document
+
+class LMSQuizSubmission(Document):
+	pass

community/lms/doctype/lms_quiz_submission/test_lms_quiz_submission.py

@@ -0,0 +1,8 @@
+# Copyright (c) 2021, FOSS United and Contributors
+# See license.txt
+
+# import frappe
+import unittest
+
+class TestLMSQuizSubmission(unittest.TestCase):
+	pass

community/lms/doctype/lms_section/lms_section.py

@@ -0,0 +1,37 @@
+# -*- coding: utf-8 -*-
+# Copyright (c) 2021, FOSS United and contributors
+# For license information, please see license.txt
+
+from __future__ import unicode_literals
+import frappe
+from frappe.model.document import Document
+
+class LMSSection(Document):
+    def __repr__(self):
+        return f"<LMSSection {self.label!r}>"
+
+    def get_exercise(self):
+        if self.type == "exercise":
+            return frappe.get_doc("Exercise", self.id)
+
+    def get_quiz(self):
+        if self.type == "quiz":
+            return frappe.get_doc("LMS Quiz", self.id)
+
+    def get_latest_code_for_user(self):
+        """Returns the latest code for the logged in user.
+        """
+        if not frappe.session.user or frappe.session.user == "Guest":
+            return self.contents
+        result = frappe.get_all('Code Revision',
+            fields=["code"],
+            filters={
+                "author": frappe.session.user,
+                "section": self.name
+            },
+            order_by="creation desc",
+            page_length=1)
+        if result:
+            return result[0]['code']
+        else:
+            return self.contents

community/lms/md.py

@@ -36,6 +36,8 @@ def find_macros(text):
             ('Exercise', 'four-circles')
         ]
     """
+    if not text:
+        return []
     macros = re.findall(MACRO_RE, text)
     # remove the quotes around the argument
     return [(name, _remove_quotes(arg)) for name, arg in macros]

community/lms/widgets/BatchTabs.html

@@ -2,16 +2,17 @@
   <a class="anchor_style" href="/courses">Courses</a> /{% if course.is_mentor(frappe.session.user) %} <a
     class="anchor_style" href="/courses/{{ course.name }}"> {{ course.title }}</a> {% else %} <span class="text-muted">
     {{ course.title }}</span> {% endif %}
-  {% set all_memberships = course.get_all_memberships() %}
+  {% set all_memberships = course.get_all_memberships(frappe.session.user) %}
-  {% if all_memberships | length > 1 %}
+  {% if membership and membership.batch and all_memberships | length > 1 %}
-  <a class="nav-link pull-right" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true"
+  <a class="pull-right dropdown-item border rounded" style="width: 10rem;" href="#" id="navbarDropdown" role="button"
-    aria-expanded="false">
+    data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
-    Switch Batch
+    {{ membership.batch_title }}
   </a>
   <div class="dropdown-menu" aria-labelledby="navbarDropdown">
     {% for data in all_memberships %}
     {% if data.batch != membership.batch %}
-    <a class="dropdown-item switch-batch" href="/courses/{{ course.name }}/home?batch={{ data.batch }}">{{ data.batch_title }}</a>
+    <a class="dropdown-item switch-batch"
+      href="/courses/{{ course.name }}/home?batch={{ data.batch }}">{{ data.batch_title }}</a>
     {% endif %}
     {% endfor %}
   </div>
@@ -28,7 +29,8 @@
     <a class="nav-link" id="home" href="/courses/{{course.name}}/home{{ course.query_parameter }}">Home</a>
   </li>
   <li class="nav-item">
-    {% set lesson_index = course.get_lesson_index(membership.current_lesson) if membership and membership.current_lesson else '1.1' %}
+    {% set lesson_index = course.get_lesson_index(membership.current_lesson) if membership and membership.current_lesson
+    else '1.1' %}
     <a class="nav-link" id="learn"
       href="{{ course.get_learn_url(lesson_index) }}{{ course.query_parameter }}">Lessons</a>
   </li>

community/lms/widgets/ChapterTeaser.html

@@ -7,9 +7,17 @@
     <div class="chapter-lessons">
       {% for lesson in chapter.get_lessons() %}
       <div class="lesson-teaser">
-        <a {% if show_link or lesson.include_in_preview %}
+        {% if show_link or lesson.include_in_preview %}
-          href="{{ course.get_learn_url(course.get_lesson_index(lesson.name)) }}{{course.query_parameter}}" {% else %} href="" class="no-preview"
+        <a class="" href="{{ course.get_learn_url(course.get_lesson_index(lesson.name)) }}{{course.query_parameter}}"
-          {% endif %} data-course="{{ course.name }}">{{ lesson.title }}</a>
+          data-course="{{ course.name }}">{{ lesson.title }}</a>
+        {% else %}
+        <div class="no-preview" title="This lesson is not available for preview">
+          <span style="color: #2490ef;">
+            {{ lesson.title }}
+          </span>
+          <i class="fa fa-lock ml-2"></i>
+        </div>
+        {% endif %}
         {% if show_progress and not course.is_mentor(frappe.session.user) and lesson.get_progress() %}
         <span class="ml-5 badge p-2 {{ lesson.get_slugified_class() }}"> {{ lesson.get_progress() }}</span>
         {% endif %}
@@ -18,36 +26,3 @@
     </div>
   </div>
 </div>
-
-<script>
-  frappe.ready(() => {
-    var d;
-    $(".no-preview").click((e) => {
-      e.preventDefault();
-      e.stopPropagation();
-      e.stopImmediatePropagation();
-      var message = __("Please enroll for this course to access the lesson.");
-      var label = __("Checkout Upcoming Batches");
-      var action = "checkout_upcoming_batches";
-      d = frappe.msgprint({
-        title: __("This lesson is not available for preview!"),
-        message: message,
-        primary_action: {
-          "label": label,
-          "client_action": action,
-        }
-      });
-    })
-
-    window.redirect_to_login = () => {
-      window.location.href = `/login?redirect-to=/courses/${$(".no-preview").attr("data-course")}`
-    }
-
-    window.checkout_upcoming_batches = () => {
-      if ($(".upcoming").length > 0) {
-        $('html,body').animate({ scrollTop: $(".upcoming").offset().top }, 300);
-      }
-      frappe.hide_msgprint();
-    }
-  })
-</script>

community/plugins.py

@@ -14,6 +14,8 @@ The PageExtension is used to load additinal stylesheets and scripts to
 be loaded in a webpage.
 """
 
+import frappe
+
 class PageExtension:
     """PageExtension is a plugin to inject custom styles and scripts
     into a web page.
@@ -64,3 +66,24 @@ class ProfileTab:
         Every subclass must implement this.
         """
         raise NotImplementedError()
+
+def quiz_renderer(quiz_name):
+    quiz = frappe.get_doc("LMS Quiz", quiz_name)
+    context = dict(quiz=quiz)
+    return frappe.render_template("templates/quiz.html", context)
+
+def exercise_renderer(argument):
+    exercise = frappe.get_doc("Exercise", argument)
+    context = dict(exercise=exercise)
+    return frappe.render_template("templates/exercise.html", context)
+
+def youtube_video_renderer(video_id):
+    return f"""
+    <iframe width="560" height="315"
+        src="https://www.youtube.com/embed/{video_id}"
+        title="YouTube video player"
+        frameborder="0"
+        allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture"
+        allowfullscreen>
+    </iframe>
+    """

community/public/css/style.css

@@ -23,6 +23,7 @@
   --cta-color: var(--c4);
   --send-message: var(--c7);
   --received-message: var(--c8);
+	--checkbox-size: 14px;
 	--control-bg: var(--gray-100);
 }
 
@@ -228,6 +229,10 @@ section {
 	margin-top: 30px;
 }
 
+input[type=checkbox] {
+  appearance: auto;
+}
+
 .partiallycomplete {
   background: #FEF4E2;
   color: #976417;

community/public/css/style.less

@@ -76,11 +76,6 @@ h2 {
   text-decoration: none
 }
 
-.no-preview:hover {
-  cursor: pointer;
-  color: #2490ef;
-}
-
 section {
   padding: 60px 0px;
 }

community/templates/exercise.html

@@ -0,0 +1,10 @@
+<div class="exercise">
+  <h3>Exercise {{exercise.index_label}}: {{ exercise.title }}</h3>
+  <div class="exercise-description">{{frappe.utils.md_to_html(exercise.description)}}</div>
+
+  {% set submission = exercise.get_user_submission() %}
+
+  <pre class="exercise" id="exercise-{{exercise.name}}"
+    data-last-submitted="{{ submission and submission.creation or '' }}" data-name="{{ exercise.name }}"
+    data-image='{{ (submission and submission.image or "") | tojson }}'><code class="language-joy">{{ submission.solution if submission else exercise.code }}</code></pre>
+</div>

community/templates/quiz.html

@@ -0,0 +1,30 @@
+{% set last_submission = quiz.get_last_submission_details() %}
+{% if last_submission %}
+<div class="mb-5 pull-right">
+  <div class="text-muted">Last Submitted On: {{ frappe.utils.pretty_date(last_submission.creation) }}</div>
+  <div class="text-muted">Last Submission Score: {{ last_submission.score }}</div>
+</div>
+{% endif %}
+<h3 id="title" class="mb-5">{{ quiz.title }}</h3>
+<form id="quiz-form">
+  {% for question in quiz.questions %}
+  <div class="question mb-5" data-question="{{ question.question }}"
+    data-multi="{{ question.multiple_correct_answers}}">
+    <p> {{ loop.index }}. {{ question.question }}</p>
+    {% set options = [question.option_1, question.option_2, question.option_3, question.option_4] %}
+    {% for option in options %}
+    {% if option %}
+    <div class="checkbox mb-2">
+      <input {% if question.multiple %} type="checkbox" {% else %} type="radio"
+        name="{{ question.question | urlencode }}" {% endif %} class="option" value="{{ option | urlencode }}">
+      <span class="label-area">{{ option }}</span>
+    </div>
+    {% endif %}
+    {% endfor %}
+  </div>
+  {% endfor %}
+  <button class="btn btn-secondary hide mb-5" id="try-again">Try Again</button>
+  <button class="btn btn-primary" id="submit-quiz">Submit</button>
+  <h4 class="success-message"></h4>
+  <h5 class="score text-muted"></h5>
+</form>

community/www/batch/home.html

@@ -11,7 +11,7 @@
 <div class="container mt-5">
   {{ widgets.BatchTabs(course=course, membership=membership) }}
   <div class="course-details mt-5">
-    {{ widgets.CourseOutline(course=course, batch=batch, show_link=True, show_progress=True) }}
+    {{ widgets.CourseOutline(course=course, batch=batch, show_link=membership, show_progress=True) }}
   </div>
 
   {% if batch %}

community/www/batch/learn.html

@@ -36,13 +36,13 @@
       <a href="/courses/{{ course.name }}">Checkout Course Details.</a>
     </div>
     {% endif %}
-
+    {% if membership %}
     {{ pagination(prev_chap, prev_url, next_chap, next_url) }}
+    {% endif %}
   </div>
 </div>
 {% endblock %}
 
-
 {% macro pagination(prev_chap, prev_url, next_chap, next_url) %}
 <div class="lesson-pagination">
   {% if prev_url %}

community/www/batch/learn.js

@@ -1,4 +1,6 @@
 frappe.ready(() => {
+
+  /* Save Lesson Progress */
   if ($(".title").attr("data-membership") && !$(".title").hasClass("is_mentor")) {
     frappe.call({
       method: "community.lms.doctype.lesson.lesson.save_progress",
@@ -8,10 +10,60 @@ frappe.ready(() => {
       }
     })
   }
+
+  /* Save Current Lesson */
   if ($(".title").attr("data-membership")) {
     frappe.call("community.lms.api.save_current_lesson", {
       course_name: $(".title").attr("data-course"),
       lesson_name: $(".title").attr("data-lesson")
     })
   }
+
+  /* Submit Quiz */
+  $("#submit-quiz").click((e) => {
+    e.preventDefault();
+    console.log("click")
+    var result = [];
+    $('.question').each((i, element) => {
+      var options = $(element).find(".option");
+      var answers = [];
+      options.filter((i, op) => $(op).prop("checked")).each((i, elem) => answers.push(decodeURIComponent(elem.value)));
+      result.push({
+        "question": element.dataset.question,
+        "answer": answers
+      });
+    });
+    frappe.call({
+      method: "community.lms.doctype.lms_quiz.lms_quiz.submit",
+      args: {
+        quiz: $("#title").text(),
+        result: result
+      },
+      callback: (data) => {
+        $("#submit-quiz").addClass("hide");
+        $("#try-again").removeClass("hide");
+        $(":input[type='checkbox']").prop("disabled", true);
+        $(":input[type='radio']").prop("disabled", true);
+        if (data.message == result.length) {
+          $(".success-message").text("Congratulations, you cleared the quiz!");
+        }
+        else {
+          $(".success-message").text("Some of your answers weren't correct. You can give it another shot.");
+        }
+        $(".score").text(`Score: ${data.message}/${result.length}`);
+      }
+    })
+  })
+
+  /* Try the quiz again */
+  $("#try-again").click((e) => {
+    e.preventDefault();
+    $(":input[type='checkbox']").prop("disabled", false);
+    $(":input[type='radio']").prop("disabled", false);
+    $("#quiz-form").trigger("reset");
+    $(".success-message").text("");
+    $(".score").text("");
+    $("#submit-quiz").removeClass("hide");
+    $("#try-again").addClass("hide");
+  })
 })

community/www/batch/learn.py

@@ -30,8 +30,8 @@ def get_context(context):
     next_ = outline.get_next(lesson_number)
     context.prev_chap = get_chapter_title(course_name, prev_)
     context.next_chap = get_chapter_title(course_name, next_)
-    context.next_url = context.course.get_learn_url(next_) + context.course.query_parameter
+    context.next_url = context.course.get_learn_url(next_) and  context.course.get_learn_url(next_) + context.course.query_parameter
-    context.prev_url = context.course.get_learn_url(prev_) + context.course.query_parameter
+    context.prev_url = context.course.get_learn_url(prev_) and context.course.get_learn_url(prev_) + context.course.query_parameter
 
     context.page_extensions = get_page_extensions()
 
@@ -49,7 +49,7 @@ def get_lesson_index(course, batch, user):
     return lesson and course.get_lesson_index(lesson)
 
 def get_page_extensions():
-    default_value = ["community.community.plugins.PageExtension"]
+    default_value = ["community.plugins.PageExtension"]
     classnames = frappe.get_hooks("community_lesson_page_extensions") or default_value
     extensions = [frappe.get_attr(name)() for name in classnames]
     return extensions

community/www/courses/course.html

@@ -4,6 +4,7 @@
 {% block head_include %}
 <meta name="description" content="Courses" />
 <meta name="keywords" content="Courses {{course.title}}" />
+<link rel="stylesheet" href="/assets/frappe/css/font-awesome.css">
 {% endblock %}
 
 {% block content %}
@@ -30,7 +31,7 @@
         {{ CourseDescription(course) }}
         {{ widgets.InstructorSection(instructor=course.get_instructor()) }}
         {{ BatchSection(course) }}
-        {{ widgets.CourseOutline(course=course, show_link=False) }}
+        {{ widgets.CourseOutline(course=course, show_link=membership) }}
       </div>
     </div>
   </div>

community/www/courses/course.py

@@ -16,8 +16,9 @@ def get_context(context):
         raise frappe.Redirect
 
     context.course = course
-    if not course.is_mentor(frappe.session.user):
+    membership = course.get_membership(frappe.session.user)
-        batch = course.get_membership(frappe.session.user)
+    context.course.query_parameter = "?batch=" + membership.batch if membership and membership.batch else ""
-        if batch:
+    context.membership = membership
+    if not course.is_mentor(frappe.session.user) and membership:
         frappe.local.flags.redirect_location = f"/courses/{course.name}/learn"
         raise frappe.Redirect

community/www/sketches/index.html

@@ -1,28 +0,0 @@
-{% extends "templates/base.html" %}
-{% from "www/macros/livecode.html" import LiveCodeEditor, LiveCodeEditorJS %}
-
-{% block title %}Sketches{% endblock %}
-{% block head_include %}
-	<meta name="description" content="Sketches" />
-	<meta name="keywords" content="sketches" />
-  <link rel="stylesheet" href="/assets/css/lms.css">
-{% endblock %}
-
-{% block content %}
-<section class="top-section" style="padding: 1rem 0rem;">
-	<div class='container pb-5'>
-		<h1>Recent Sketches</h1>
-
-    <a href="/sketches/new" class="btn btn-primary">Create a New Sketch</a>
-	</div>
-	<div class='container'>
-    <div class="row">
-      {% for sketch in sketches %}
-        <div class="col-md-3">
-          {{ widgets.SketchTeaser(sketch=sketch) }}
-        </div>
-      {% endfor %}
-    </div>
-	</div>
-</section>
-{% endblock %}

community/www/sketches/index.py

@@ -1,7 +0,0 @@
-import frappe
-from community.lms.models import Sketch
-
-def get_context(context):
-    context.no_cache = 1
-    context.sketches = Sketch.get_recent_sketches()
-

community/www/sketches/sketch.html

@@ -1,112 +0,0 @@
-{% extends "templates/base.html" %}
-{% from "www/macros/livecode.html" import LiveCodeEditorLarge, LiveCodeEditorJS with context %}
-
-{% block title %}{{sketch.title}}{% endblock %}
-{% block head_include %}
-	<meta name="description" content="Sketch {{sketch.title}}" />
-	<meta name="keywords" content="sketch {{sketch.title}}" />
-	<style>
-	</style>
-
-<link rel="stylesheet" href="{{ livecode_url }}/static/codemirror/lib/codemirror.css">
-<link rel="stylesheet" href="/assets/css/lms.css">
-
-<script src="{{ livecode_url }}/static/codemirror/lib/codemirror.js"></script>
-<script src="{{ livecode_url }}/static/codemirror/mode/python/python.js"></script>
-<script src="{{ livecode_url }}/static/codemirror/keymap/sublime.js"></script>
-
-<script src="{{ livecode_url }}/static/codemirror/addon/edit/matchbrackets.js"></script>
-<script src="{{ livecode_url }}/static/codemirror/addon/comment/comment.js"></script>
-{% endblock %}
-
-{% block content %}
-<section class="top-section" style="padding: 1rem 0rem;">
-	<div class='container pb-5'>
-		<nav aria-label="breadcrumb">
-			<ol class="breadcrumb">
-				<li class="breadcrumb-item" aria-current="page"><a href="/sketches">Sketches</a></li>
-			</ol>
-		</nav>
-
-    <div class="sketch-header">
-      {% if editable %}
-      <div class="form-row">
-        <div class="col-lg-8 col-md-6">
-          <input type="text" id="sketch-title" name="title" class="form-control" value="{{ sketch.title }}">
-        </div>
-        <div class="col-lg-4 col-md-6">
-          <button type="submit" id="sketch-save" class="btn-save btn btn-primary">Save</button>
-        </div>
-      </div>
-      {% else %}
-        <h1 class="sketch-title">{{sketch.title}}</h1>
-        <div class="sketch-owner-wrapper">By <span class="sketch-owner">{{sketch.get_owner_name()}}</span></div>
-      {% endif %}
-    </div>
-
-  {% if sketch.is_new() and not editable %}
-    <div class="alert alert-warning">
-      Please login to save this sketch.
-    </div>
-  {% endif %}
-
-    <div class="sketch-editor">
-      {{LiveCodeEditorLarge(sketch.name, sketch.code) }}
-    </div>
-{% endblock %}
-
-{%- block script %}
-  {{ super() }}
-  {{ LiveCodeEditorJS() }}
-
-  <script type="text/javascript">
-    var sketch_name = {{ sketch.name | tojson }};
-
-    function saveSketch() {
-      var title = $("#sketch-title").val()
-      var code = livecodeEditors[0].codemirror.doc.getValue()
-      frappe.call('community.lms.doctype.lms_sketch.lms_sketch.save_sketch', {
-        name: sketch_name,
-        title: title,
-        code: code
-      })
-      .then(r => {
-        var msg = r.message;
-        if (!msg.ok) {
-          var error = msg.error || "Save failed."
-          frappe.msgprint({
-            "title": "Error",
-            "indicator": "red",
-            "message": error
-          });
-        }
-        else if (msg.status == "created") {
-          var path = "/sketches/sketch?sketch=" + msg.name;
-          var url = window.location.protocol + "//" + window.location.host + path
-          window.history.pushState({path: url}, '', url);
-          sketch_name = name;
-
-          frappe.msgprint({
-            "title": "Notification",
-            "indicator": "green",
-            "message": "New sketch has been saved!"
-          });
-        }
-        else if (msg.status == "updated") {
-          frappe.msgprint({
-            "title": "Notification",
-            "indicator": "green",
-            "message": "The sketch has been saved!"
-          });
-        }
-      })
-    }
-
-    $(function() {
-      $("#sketch-save").click(function() {
-        saveSketch();
-      });
-    })
-  </script>
-{%- endblock %}
-

community/www/sketches/sketch.py

@@ -1,46 +0,0 @@
-import frappe
-
-def get_context(context):
-    context.no_cache = 1
-
-    try:
-        sketch_id = frappe.form_dict["sketch"]
-    except KeyError:
-        context.template = "www/404.html"
-        return
-
-    sketch = get_sketch(sketch_id)
-    if not sketch:
-        context.template = "www/404.html"
-        return
-
-    context.sketch = sketch
-    context.livecode_url = get_livecode_url()
-    context.editable = is_editable(context.sketch, frappe.session.user)
-
-def is_editable(sketch, user):
-    if sketch.is_new():
-        # new sketches can be editable by any logged in user
-        return user != "Guest"
-    else:
-        # existing sketches are editable by the owner
-        return sketch.owner == user
-
-def get_livecode_url():
-    doc = frappe.get_doc("LMS Settings")
-    return doc.livecode_url
-
-def get_sketch(sketch_id):
-    if sketch_id == 'new':
-        sketch = frappe.new_doc('LMS Sketch')
-        sketch.name = "new"
-        sketch.title = "New Sketch"
-        sketch.code = "circle(100, 100, 50)"
-        return sketch
-
-    try:
-        name = "SKETCH-" + sketch_id
-        return frappe.get_doc('LMS Sketch', name)
-    except frappe.exceptions.DoesNotExistError:
-        return
-