Why Mongoose doesn't validate on update?

Question

I have this code

var ClientSchema = new Schema({
  name: {type: String, required: true, trim: true}
});

var Client = mongoose.mode(\'Client\', ClientSchema)         


        

Answer 1

In your model, ex. Category.js file:

const CategorySchema = mongoose.Schema({
category_name : {
type : String,
required : [true, 'Category Name Is Required !'],
trim : true,
maxlength : [30, 'Category Name Is To Long !'],
unique : true,
});
const Category = module.exports = mongoose.model("Category",CategorySchema);

In your route file:

router.put("/",(req,res,next)=>{
  Category.findOneAndUpdate(
  {_id : req.body.categoryId},
  {$set : {category_name : req.body.category_name} },
  **{runValidators: true}**, function(err,result) {
    if(err){
      if(err.code === 11000){
       var duplicateValue = err.message.match(/".*"/);
       res.status(200).json({"defaultError":duplicateValue[0]+" Is Already Exsist !"});
       }else{
         res.status(200).json({"error":err.message} || {"defaultError":'Error But Not Understood !'});
       }
    }else{
     console.log("From category.js (Route File) = "+result);
     res.status(200).json({"success":"Category Updated Successfully!!"});
    }
});