sequelize validation empty string

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09 Jan 2019

1sequelize.define('foo', {
2  bar: {
3    type: DataTypes.STRING,
4    validate: {
5      is: /^[a-z]+$/i,          // matches this RegExp
6      is: ["^[a-z]+$",'i'],     // same as above, but constructing the RegExp from a string
7      not: /^[a-z]+$/i,         // does not match this RegExp
8      not: ["^[a-z]+$",'i'],    // same as above, but constructing the RegExp from a string
9      isEmail: true,            // checks for email format (foo@bar.com)
10      isUrl: true,              // checks for url format (http://foo.com)
11      isIP: true,               // checks for IPv4 (129.89.23.1) or IPv6 format
12      isIPv4: true,             // checks for IPv4 (129.89.23.1)
13      isIPv6: true,             // checks for IPv6 format
14      isAlpha: true,            // will only allow letters
15      isAlphanumeric: true,     // will only allow alphanumeric characters, so "_abc" will fail
16      isNumeric: true,          // will only allow numbers
17      isInt: true,              // checks for valid integers
18      isFloat: true,            // checks for valid floating point numbers
19      isDecimal: true,          // checks for any numbers
20      isLowercase: true,        // checks for lowercase
21      isUppercase: true,        // checks for uppercase
22      notNull: true,            // won't allow null
23      isNull: true,             // only allows null
24      notEmpty: true,           // don't allow empty strings
25      equals: 'specific value', // only allow a specific value
26      contains: 'foo',          // force specific substrings
27      notIn: [['foo', 'bar']],  // check the value is not one of these
28      isIn: [['foo', 'bar']],   // check the value is one of these
29      notContains: 'bar',       // don't allow specific substrings
30      len: [2,10],              // only allow values with length between 2 and 10
31      isUUID: 4,                // only allow uuids
32      isDate: true,             // only allow date strings
33      isAfter: "2011-11-05",    // only allow date strings after a specific date
34      isBefore: "2011-11-05",   // only allow date strings before a specific date
35      max: 23,                  // only allow values <= 23
36      min: 23,                  // only allow values >= 23
37      isCreditCard: true,       // check for valid credit card numbers
38
39      // Examples of custom validators:
40      isEven(value) {
41        if (parseInt(value) % 2 !== 0) {
42          throw new Error('Only even values are allowed!');
43        }
44      }
45      isGreaterThanOtherField(value) {
46        if (parseInt(value) <= parseInt(this.otherField)) {
47          throw new Error('Bar must be greater than otherField.');
48        }
49      }
50    }
51  }
52});
53

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