validity-validate-if-property-set

Validate the current property if another property is set.

E.g you have a URL property of a schema, which is not a required field. You only want to apply validation to that field if another field has a value.

Installation

npm install validity-validate-if-property-set --save

Usage

Below is a simple example for usage with schemata and save:

var validity = require('validity')
  , schemata = require('schemata')
  , save = require('save')
  , collection = save('author')
  , validateIfPropertySet = require('validity-validate-if-property-set')

var schema = schemata(
    { useLink:
      { type: Boolean
      }
    , url:
      { type: String
      , validators: { all: [ validateIfPropertySet('useLink', validity.url) ] }
      }
    })

Credits

Adam Duncan