updates for courses

dbCourse.js

@@ -9,17 +9,20 @@ const dbUtils = require('db-utils');
 module.exports = function (Course) {
 	return {
 		addCourse : function(owner, name, info, description) {
-			return dbUtils.dbCreateItem(Course,{ owner: owner, name: name, info: info, description: description});
+			return dbUtils.dbCreateItem(Course,{ owner: owner, name: name, info: info, description: description, teachers : [owner]});
 		},
-		updateCourse : function(courseId, owner, name, info, description) {
-			return dbUtils.dbFindOneAndUpdate(Course,{_id:courseId}, { owner: owner, name: name, info: info, description: description});
+		updateCourse : function(courseId, name, info, description) {
+			return dbUtils.dbFindOneAndUpdate(Course,{_id:courseId}, { name: name, info: info, description: description});
 		},
 		getCourseById : function (courseId) {
 			return dbUtils.dbFindOne(Course, {_id: courseId}, [{ path: 'owner' }]);
 		},
-		getCourseByOwner : function (owner) {
+		getCoursesByOwner : function (owner) {
 			return dbUtils.dbFind(Course, {owner: owner}, {population : [{ path: 'owner' }]});
 		},
+		getCoursesByTeacher : function (teacherId) {
+			return dbUtils.dbFind(Course, {teachers: teacherId}, {population : [{ path: 'owner' }]});
+		},
 		removeCourseById : function (courseId) {
 			return dbUtils.dbRemoveItem(Course, {_id: courseId});
 		},
@@ -28,6 +31,18 @@ module.exports = function (Course) {
 		},
 		getCoursesCount : function () {
 			return dbUtils.dbCount(Course, {});
+		},
+		addTeacher : function (courseId, teacherId) {
+			return dbUtils.dbFindOneAndUpdate(Course, {_id : courseId}, { $push: { teachers: teacherId } });
+		},
+		deleteTeacher : function (courseId, teacherId) {
+			return dbUtils.dbFindOneAndUpdate(Course, {_id : courseId}, {$pull : {teachers : teacherId}});
+		},
+		addGroup : function (courseId, groupId) {
+			return dbUtils.dbFindOneAndUpdate(Course, {_id : courseId}, { $push: { groups: groupId } });
+		},
+		deleteGroup : function (courseId, groupId) {
+			return dbUtils.dbFindOneAndUpdate(Course, {_id : courseId}, {$pull : {groups : groupId}});
 		}
 	};
 };

models/Course.js

@@ -10,7 +10,22 @@ var CourseSchema = new mongoose.Schema({
         ref: 'User',
         required: true
     },
-
+    teachers : {
+        type: [{
+            type: mongoose.Schema.Types.ObjectId,
+            ref: 'User',
+            required: true
+        }],
+        default: []
+    },
+    groups : {
+        type: [{
+            type: mongoose.Schema.Types.ObjectId,
+            ref: 'Group',
+            required: true
+        }],
+        default: []
+    },
     name: {
         type: String,
         default: '',