feature #11: Add password compare to User Model

src/api/user/userModel.js

@@ -1,10 +1,12 @@
 const mongoose = require("mongoose");
+const bcrypt = require("bcrypt");
 
 const userSchema = mongoose.Schema({
-  firstName: { type: String, required: true },
-  lastName: { type: String, required: true },
   address: { type: String, required: true },
   city: { type: String, required: true },
+  firstName: { type: String, required: true },
+  lastName: { type: String, required: true },
+  password: { type: String, required: true },
   postcode: { type: String, required: true }
 });
 
@@ -20,6 +22,30 @@ userSchema.virtual("name").get(() => {
   return this.lastName + ", " + this.firstName;
 });
 
+userSchema.pre("save", function(next) {
+  const user = this;
+  if (!this.isModified("password")) {
+    next();
+  } else {
+    bcrypt.hash(user.password, 10, function(err, hash) {
+      if (err) {
+        next(err);
+      } else {
+        user.password = hash;
+        next();
+      }
+    });
+  }
+});
+userSchema.methods = {
+  comparePassword(receivedPassword, next) {
+    bcrypt.compare(receivedPassword, this.password, function(err, isMatch) {
+      if (err) return next(err);
+      next(null, isMatch);
+    });
+  }
+};
+
 const userModel = mongoose.model("User", userSchema);
 
 module.exports = userModel;