How do I handle a Unique Field in sails?

Question

I\'ve defined a unique field in my model but when I tried to test it seems like it\'s not being checked by sails because I get a Error (E_UNKNOWN) :: Encountered an un

Answer 1

@tvollstaedt Your reponse worked like a charm, and by the way is the most elegant way to handle "uniqueness" in sailsjs so far.

Thank you!

Here is my two cents to add custom validation messages using "sails-validation-messages":

module.exports = {
  /* Custom validation types   */
  uniqueEmail: false,
	types: {
		uniqueEmail: function(value) {
			return uniqueEmail;
		}
	},
  attributes: {
  	firstname:{
			type: 'string',
			required: true,
		},
		lastname:{
			type: 'string',
			required: true,
		},
		email:{
			type: 'email',
			required: true,
			unique: true,
			maxLength:50,
			uniqueEmail:true
		},
		status:{
			type: 'string'
		}
  },
  beforeValidate: function(values, cb) {
  	Application.findOne({email: values.email}).exec(function (err, record) {
  		console.log('before validation ' + !err && !record);
  		uniqueEmail = !err && !record;
  		cb();
  	});
  },
  validationMessages: {
  	firstname: {
      required : 'First name is required',
    },
    lastname: {
      required : 'Last name is required',
    },
    email: {
      required : 'Email is required',
      email : 'Enter valid email',
      uniqueEmail: 'Email already registered'
    },
  }
};

Then in the controller you can handle the error like this:

module.exports = {
	create:function(req, res){
    var values = req.allParams();
	Application.create({
	  email:values.email,
	  firstname:values.firstname,
	  lastname:values.lastname,
	  _csrf: values.csrf
	})
	exec(function created (err, values) {
      if(err) {
		console.log(err);
		if(err.invalidAttributes) {
          validator = require('sails-validation-messages');
		  err.invalidAttributes = validator(Application, err.invalidAttributes);
		    return res.negotiate(err);
	      }
	    }
	  });
	}
};

Thanks