[CREATED] Created model for student and added CURD

Author: swathiharish-gh

models/student.js

@@ -0,0 +1,53 @@
+import connector from "#models/databaseUtil";
+
+const studentSchema = {
+  ERPID: { type: String, required: true },
+  name: { type: String, required: true },
+  joiningYear: { type: Number, required: true },
+  branch: { type: connector.Schema.Types.ObjectId, ref: "Department", required: true },
+  division: { type: String, enum: ["A", "B", "C"], default: "A" },
+  rollNo: { type: Number, required: true },
+  coursesOpted: [{ type: connector.Schema.Types.ObjectId, ref: "Course", required: true }],
+};
+
+// eslint-disable-next-line  no-unused-vars
+
+const Student = connector.model("Student", studentSchema);
+
+// CRUD OPERATIONS
+
+async function remove(filter) {
+  const deleteResult = await Student.deleteMany(filter);
+  return deleteResult.acknowledged;
+}
+
+async function create(studentData) {
+  const {
+    ERPID, name, joiningYear, branch, division, rollNo, coursesOpted,
+  } = studentData;
+  const student = new Student({
+    ERPID,
+    name,
+    joiningYear,
+    branch,
+    division,
+    rollNo,
+    coursesOpted,
+  });
+  const studentDoc = await student.save();
+  return studentDoc;
+}
+
+async function read(filter, limit = 1) {
+  const studentDoc = await Student.find(filter).limit(limit);
+  return studentDoc;
+}
+
+async function update(filter, updateObject, options = { multi: true }) {
+  const updateResult = await Student.updateMany(filter, { $set: updateObject }, options);
+  return updateResult.acknowledged;
+}
+
+export default {
+  create, read, update, remove,
+};