Validation

Validating your models

While JSData provides Model Lifecycle Hooks like validate, it does not do validation for you, but allows you to use whatever validation library you'd like.

Example

This example uses Validate.js.

npm install --save js-data validate.js or bower install --save js-data validate

JavaScript

var store = new JSData.DS();

validate.validators.isString = function(value, options, key, attributes) {
  return validate.isString(value) ? null : key + ' must be a string!';
};

var productSchema = {
  id: {
    numericality: true
  },
  name: {
    presence: true,
    isString: true
  },
  price: {
    numericality: true
  }
};

var Product = store.defineResource({
  name: 'product',
  idAttribute: '_id',
  validate: function (Product, product, cb) {
    var err = validate(product, productSchema);
    if (err) {
      cb(err);
    } else {
      // pass the product along 
      cb(null, product);
    }
  }
});

📘

Need Help?

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