sequelize/lib/utils/validator-extras.js

Sequelize is a promise-based Node.js ORM tool for Postgres, MySQL, MariaDB, SQLite, Microsoft SQL Server, Amazon Redshift and Snowflake’s Data Cloud. It features solid transaction support, relations, eager and lazy loading, read replication and more.

"use strict";
const _ = require("lodash");
const validator = _.cloneDeep(require("validator"));
const moment = require("moment");
const extensions = {
  extend(name, fn) {
    this[name] = fn;
    return this;
  },
  notEmpty(str) {
    return !str.match(/^[\s\t\r\n]*$/);
  },
  len(str, min, max) {
    return this.isLength(str, min, max);
  },
  isUrl(str) {
    return this.isURL(str);
  },
  isIPv6(str) {
    return this.isIP(str, 6);
  },
  isIPv4(str) {
    return this.isIP(str, 4);
  },
  notIn(str, values) {
    return !this.isIn(str, values);
  },
  regex(str, pattern, modifiers) {
    str += "";
    if (Object.prototype.toString.call(pattern).slice(8, -1) !== "RegExp") {
      pattern = new RegExp(pattern, modifiers);
    }
    return str.match(pattern);
  },
  notRegex(str, pattern, modifiers) {
    return !this.regex(str, pattern, modifiers);
  },
  isDecimal(str) {
    return str !== "" && !!str.match(/^(?:-?(?:[0-9]+))?(?:\.[0-9]*)?(?:[eE][+-]?(?:[0-9]+))?$/);
  },
  min(str, val) {
    const number = parseFloat(str);
    return isNaN(number) || number >= val;
  },
  max(str, val) {
    const number = parseFloat(str);
    return isNaN(number) || number <= val;
  },
  not(str, pattern, modifiers) {
    return this.notRegex(str, pattern, modifiers);
  },
  contains(str, elem) {
    return !!elem && str.includes(elem);
  },
  notContains(str, elem) {
    return !this.contains(str, elem);
  },
  is(str, pattern, modifiers) {
    return this.regex(str, pattern, modifiers);
  }
};
exports.extensions = extensions;
validator.isImmutable = function(value, validatorArgs, field, modelInstance) {
  return modelInstance.isNewRecord || modelInstance.dataValues[field] === modelInstance._previousDataValues[field];
};
validator.notNull = function(val) {
  return val !== null && val !== void 0;
};
_.forEach(extensions, (extend, key) => {
  validator[key] = extend;
});
validator.isNull = validator.isEmpty;
validator.isDate = function(dateString) {
  const parsed = Date.parse(dateString);
  if (isNaN(parsed)) {
    return false;
  }
  const date = new Date(parsed);
  return moment(date.toISOString()).isValid();
};
exports.validator = validator;
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