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node_modules/sequelize/lib/utils/validator-extras.js

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+'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;
+
+// instance based validators
+validator.isImmutable = function(value, validatorArgs, field, modelInstance) {
+  return modelInstance.isNewRecord || modelInstance.dataValues[field] === modelInstance._previousDataValues[field];
+};
+
+// extra validators
+validator.notNull = function(val) {
+  return val !== null && val !== undefined;
+};
+
+// https://github.com/chriso/validator.js/blob/6.2.0/validator.js
+_.forEach(extensions, (extend, key) => {
+  validator[key] = extend;
+});
+
+// map isNull to isEmpty
+// https://github.com/chriso/validator.js/commit/e33d38a26ee2f9666b319adb67c7fc0d3dea7125
+validator.isNull = validator.isEmpty;
+
+// isDate removed in 7.0.0
+// https://github.com/chriso/validator.js/commit/095509fc707a4dc0e99f85131df1176ad6389fc9
+validator.isDate = function(dateString) {
+  // avoid http://momentjs.com/guides/#/warnings/js-date/
+  // by doing a preliminary check on `dateString`
+  const parsed = Date.parse(dateString);
+  if (isNaN(parsed)) {
+    // fail if we can't parse it
+    return false;
+  }
+  // otherwise convert to ISO 8601 as moment prefers
+  // http://momentjs.com/docs/#/parsing/string/
+  const date = new Date(parsed);
+  return moment(date.toISOString()).isValid();
+};
+
+exports.validator = validator;