fix: misc issues

frontend/src/pages/Batch.vue

@@ -236,7 +236,7 @@ const breadcrumbs = computed(() => {
 const isStudent = computed(() => {
 	return (
 		user?.data &&
-		batch.data?.students.length &&
+		batch.data?.students?.length &&
 		batch.data?.students.includes(user.data.name)
 	)
 })

frontend/src/pages/CourseForm.vue

@@ -248,12 +248,7 @@ import {
 	reactive,
 	watch,
 } from 'vue'
-import {
-	convertToTitleCase,
-	showToast,
-	getFileSize,
-	updateDocumentTitle,
-} from '@/utils'
+import { convertToTitleCase, showToast, updateDocumentTitle } from '@/utils'
 import Link from '@/components/Controls/Link.vue'
 import { FileText, Image, X } from 'lucide-vue-next'
 import { useRouter } from 'vue-router'

frontend/src/pages/Lesson.vue

@@ -17,14 +17,9 @@
 						)
 					}}
 				</p>
-				<router-link
-					v-if="user.data"
-					:to="{ name: 'CourseDetail', params: { courseName: courseName } }"
-				>
-					<Button variant="solid">
-						{{ __('Start Learning') }}
-					</Button>
-				</router-link>
+				<Button v-if="user.data" @click="enrollStudent()" variant="solid">
+					{{ __('Start Learning') }}
+				</Button>
 				<Button v-else @click="redirectToLogin()">
 					{{ __('Login') }}
 				</Button>
@@ -194,7 +189,7 @@ import { createResource, Breadcrumbs, Button } from 'frappe-ui'
 import { computed, watch, inject, ref, onMounted, onBeforeUnmount } from 'vue'
 import CourseOutline from '@/components/CourseOutline.vue'
 import UserAvatar from '@/components/UserAvatar.vue'
-import { useRoute } from 'vue-router'
+import { useRouter, useRoute } from 'vue-router'
 import { ChevronLeft, ChevronRight } from 'lucide-vue-next'
 import Discussions from '@/components/Discussions.vue'
 import { getEditorTools, updateDocumentTitle } from '../utils'
@@ -204,6 +199,7 @@ import CourseInstructors from '@/components/CourseInstructors.vue'
 import ProgressBar from '@/components/ProgressBar.vue'
 
 const user = inject('$user')
+const router = useRouter()
 const route = useRoute()
 const allowDiscussions = ref(false)
 const editor = ref(null)
@@ -379,6 +375,30 @@ const allowInstructorContent = () => {
 	return false
 }
 
+const enrollment = createResource({
+	url: 'frappe.client.insert',
+	makeParams() {
+		return {
+			doc: {
+				doctype: 'LMS Enrollment',
+				course: props.courseName,
+				member: user.data?.name,
+			},
+		}
+	},
+})
+
+const enrollStudent = () => {
+	enrollment.submit(
+		{},
+		{
+			onSuccess() {
+				window.location.reload()
+			},
+		}
+	)
+}
+
 const redirectToLogin = () => {
 	window.location.href = `/login?redirect-to=/lms/courses/${props.courseName}`
 }