Required if validator

[xpepermint]

Required if validator

[xpepermint]

That should be easy to achieve just by adding a custom validator (on your model schema). Note that contextable.js is using objectschema.js and validatable.js under the hood thus you will find details there.

Here is just a hint on how your schema should look like (check the docs for details):

export const schema = new Schema({
  fields: {
    name: {
      type: 'String',
      validate: [
        {
          validator: 'myCustomValidator',
          message: 'is required'
        }
      ]
    }
  },
  validatorOptions: { // this is passed directly to validatable.js Validator class
     validators: {
        async myCustomValidator ({value, recipe}}) { // function or promise
           return this.field1 && this.field2 && this.somethingElse; // return true when valid
        }
     }
  }
});

Note also that a validator's context is Model so you can access model's fields by using this.{field}. If you have nested structure, then you access parent model as this.$parent. Let me know if that helps.

[xpepermint]

Maybe we could add the if or only key which would run field validation only if listed validators are true. If you think this is a good idea, you can open a new issue here.

[xpepermint]

Feature requested here rawmodel/framework#2.

[michaelsorich]

Thanks - the example of the custom validator was sufficient for my needs although it would be simpler if there was an if key for the presence validator (not so sure about the use cases more generally).

[xpepermint]

@michaelsorich cool. The feature you requested will be added in one of the future releases.

[xpepermint]

The latest contextable.js now provides the condition option.