/
index.js
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/
index.js
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'use strict';
const Hoek = require('hoek');
function noChangeExtend(Joi) {
// extend Joi
// due to extending any() not extending other types, number(), string(), etc. we need to extend all of these manually
// see https://github.com/hapijs/joi/issues/577
return Joi
.extend(createRule('any'))
.extend(createRule('object'))
.extend(createRule('number'))
.extend(createRule('string'))
.extend(createRule('date'))
.extend(createRule('boolean'));
}
// creates a rule for the provided base type
function createRule(joiType) {
return function noChange(joi) {
return {
base: joi[joiType](),
name: joiType,
language: {
noChange: 'is not allowed to change' // maybe use 'may not change from {{q}}' instead?
},
rules: [{
name: 'noChange',
params: {
q: joi.any()
},
validate(params, value, state, options) {
// Joi 10.3.0+ paths are arrays
const path = state.path.join('.');
const origValue = Hoek.reach(params.q, path);
if (Hoek.deepEqual(origValue, value)) {
return value; // Everything is OK
}
return this.createError(joiType + '.noChange', {
v: value//,
// q: origValue
}, state, options);
}
}]
};
};
}
module.exports = noChangeExtend;