feat: added Exercise and Exercise Submission doctypes

Also:
- added methods to submit an exercise and get the submission for a user
- added test cases

Issue #90

community/lms/doctype/exercise/exercise.js

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

community/lms/doctype/exercise/exercise.json

@@ -0,0 +1,99 @@
+{
+ "actions": [],
+ "allow_rename": 1,
+ "creation": "2021-05-19 17:43:39.923430",
+ "doctype": "DocType",
+ "editable_grid": 1,
+ "engine": "InnoDB",
+ "field_order": [
+  "title",
+  "description",
+  "code",
+  "answer",
+  "column_break_4",
+  "course",
+  "hints",
+  "tests",
+  "image"
+ ],
+ "fields": [
+  {
+   "fieldname": "title",
+   "fieldtype": "Data",
+   "in_list_view": 1,
+   "label": "Title"
+  },
+  {
+   "fieldname": "course",
+   "fieldtype": "Link",
+   "label": "Course",
+   "options": "LMS Course"
+  },
+  {
+   "columns": 4,
+   "fieldname": "description",
+   "fieldtype": "Markdown Editor",
+   "in_list_view": 1,
+   "label": "Description"
+  },
+  {
+   "columns": 4,
+   "fieldname": "answer",
+   "fieldtype": "Code",
+   "label": "Answer"
+  },
+  {
+   "fieldname": "tests",
+   "fieldtype": "Code",
+   "label": "Tests"
+  },
+  {
+   "fieldname": "column_break_4",
+   "fieldtype": "Column Break"
+  },
+  {
+   "columns": 4,
+   "fieldname": "hints",
+   "fieldtype": "Markdown Editor",
+   "label": "Hints"
+  },
+  {
+   "columns": 4,
+   "fieldname": "code",
+   "fieldtype": "Code",
+   "label": "Code"
+  },
+  {
+   "fieldname": "image",
+   "fieldtype": "Code",
+   "label": "Image",
+   "read_only": 1
+  }
+ ],
+ "index_web_pages_for_search": 1,
+ "links": [],
+ "modified": "2021-05-19 18:27:40.475515",
+ "modified_by": "Administrator",
+ "module": "LMS",
+ "name": "Exercise",
+ "owner": "Administrator",
+ "permissions": [
+  {
+   "create": 1,
+   "delete": 1,
+   "email": 1,
+   "export": 1,
+   "print": 1,
+   "read": 1,
+   "report": 1,
+   "role": "System Manager",
+   "share": 1,
+   "write": 1
+  }
+ ],
+ "search_fields": "title",
+ "sort_field": "modified",
+ "sort_order": "DESC",
+ "title_field": "title",
+ "track_changes": 1
+}

community/lms/doctype/exercise/exercise.py

@@ -0,0 +1,44 @@
+# Copyright (c) 2021, FOSS United and contributors
+# For license information, please see license.txt
+
+import frappe
+from frappe.model.document import Document
+
+class Exercise(Document):
+    def get_user_submission(self):
+        """Returns the latest submission for this user.
+        """
+        user = frappe.session.user
+        if not user or user == "Guest":
+            return
+
+        result = frappe.get_all('Exercise Submission',
+            fields="*",
+            filters={
+                "owner": user,
+                "exercise": self.name
+            },
+            order_by="creation desc",
+            page_length=1)
+        if result:
+            return result[0]
+
+    def submit(self, code):
+        """Submits the given code as solution to exercise.
+        """
+        user = frappe.session.user
+        if not user or user == "Guest":
+            return
+
+        old_submission = self.get_user_submission()
+        if old_submission and old_submission.solution == code:
+            return old_submission
+
+        doc = frappe.get_doc(
+            doctype="Exercise Submission",
+            exercise=self.name,
+            exercise_title=self.title,
+            solution=code)
+        doc.insert()
+        return doc
+

community/lms/doctype/exercise/test_exercise.py

@@ -0,0 +1,37 @@
+# Copyright (c) 2021, FOSS United and Contributors
+# See license.txt
+
+import frappe
+import unittest
+
+class TestExercise(unittest.TestCase):
+    def setUp(self):
+        frappe.db.sql('delete from `tabExercise Submission`')
+        frappe.db.sql('delete from `tabExercise`')
+
+    def new_exercise(self):
+        e = frappe.get_doc({
+            "doctype": "Exercise",
+            "name": "test-problem",
+            "title": "Test Problem",
+            "description": "draw a circle",
+            "code": "# draw a single cicle",
+            "answer": (
+                "# draw a single circle\n" +
+                "circle(100, 100, 50)")
+        })
+        e.insert()
+        return e
+
+    def test_exercise(self):
+        e = self.new_exercise()
+        assert e.get_user_submission() is None
+
+    def test_exercise_submission(self):
+        e = self.new_exercise()
+        submission = e.submit("circle(100, 100, 50)")
+        assert submission is not None
+
+        user_submission = e.get_user_submission()
+        assert user_submission is not None
+        assert user_submission.name == submission.name

community/lms/doctype/exercise_submission/exercise_submission.js

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

community/lms/doctype/exercise_submission/exercise_submission.json

@@ -0,0 +1,59 @@
+{
+ "actions": [],
+ "creation": "2021-05-19 11:41:18.108316",
+ "doctype": "DocType",
+ "editable_grid": 1,
+ "engine": "InnoDB",
+ "field_order": [
+  "exercise",
+  "solution",
+  "exercise_title"
+ ],
+ "fields": [
+  {
+   "fieldname": "exercise",
+   "fieldtype": "Link",
+   "in_list_view": 1,
+   "label": "Exercise",
+   "options": "Exercise"
+  },
+  {
+   "fieldname": "solution",
+   "fieldtype": "Code",
+   "in_list_view": 1,
+   "label": "Solution"
+  },
+  {
+   "fetch_from": "exercise.title",
+   "fieldname": "exercise_title",
+   "fieldtype": "Data",
+   "in_list_view": 1,
+   "label": "Exercise Title",
+   "read_only": 1
+  }
+ ],
+ "index_web_pages_for_search": 1,
+ "links": [],
+ "modified": "2021-05-19 19:41:55.852069",
+ "modified_by": "Administrator",
+ "module": "LMS",
+ "name": "Exercise 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/exercise_submission/exercise_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 ExerciseSubmission(Document):
+	pass

community/lms/doctype/exercise_submission/test_exercise_submission.py

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