Validate the current property if another property is equal to a particular value.
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 equal to a certain value
npm install validity-validate-if-property-equals --save
Below is a simple example for usage with schemata and save:
var validity = require("@clocklimited/validity"),
schemata = require("schemata"),
save = require("save"),
collection = save("author"),
validateIfPropertyEquals = require("@clocklimited/validity-validate-if-property-equals");
var schema = schemata({
type: { type: String },
url: {
type: String,
validators: {
all: [validateIfPropertyEquals("type", "link", validity.url)],
},
},
});