crud for group model

Author: Parikshit-007

models/group.js

@@ -0,0 +1,55 @@
+const connector = require("#models/databaseUtil");
+
+const groupSchema = {
+    groupName: { type: String, required: true },
+    studentIds: { type: [Number], required: true },
+};
+
+const groupModel = new connector.model("group", groupSchema);
+
+async function createGroup(groupData) {
+    try {
+        const newGroup = await groupModel.create(groupData);
+        return newGroup;
+    } catch (error) {
+        console.error("Error creating group:", error);
+        return null;
+    }
+}
+
+async function getGroupById(groupId) {
+    try {
+        const group = await groupModel.findById(groupId);
+        return group;
+    } catch (error) {
+        console.error("Error retrieving group:", error);
+        return null;
+    }
+}
+
+async function updateGroup(groupId, updateData) {
+    try {
+        const updatedGroup = await groupModel.findByIdAndUpdate(groupId, updateData, { new: true });
+        return updatedGroup;
+    } catch (error) {
+        console.error("Error updating group:", error);
+        return null;
+    }
+}
+
+async function deleteGroup(groupId) {
+    try {
+        const deletedGroup = await groupModel.findByIdAndDelete(groupId);
+        return deletedGroup;
+    } catch (error) {
+        console.error("Error deleting group:", error);
+        return null;
+    }
+}
+
+module.exports = {
+    createGroup,
+    getGroupById,
+    updateGroup,
+    deleteGroup,
+};