node js sequelize postgres email field código único ejemplo

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Ejemplo 1: secuenciar la validación vacía string

sequelize.define('foo',
  bar:
    type:DataTypes.STRING,
    validate:
      is:/^[a-z]+$/i,// matches this RegExp
      is:["^[a-z]+$",'i'],// same as above, but constructing the RegExp from a string
      not:/^[a-z]+$/i,// does not match this RegExp
      not:["^[a-z]+$",'i'],// same as above, but constructing the RegExp from a string
      isEmail:true,// checks for email format ([email protected])
      isUrl:true,// checks for url format (http://foo.com)
      isIP:true,// checks for IPv4 (129.89.23.1) or IPv6 format
      isIPv4:true,// checks for IPv4 (129.89.23.1)
      isIPv6:true,// checks for IPv6 format
      isAlpha:true,// will only allow letters
      isAlphanumeric:true,// will only allow alphanumeric characters, so "_abc" will fail
      isNumeric:true,// will only allow numbers
      isInt:true,// checks for valid integers
      isFloat:true,// checks for valid floating point numbers
      isDecimal:true,// checks for any numbers
      isLowercase:true,// checks for lowercase
      isUppercase:true,// checks for uppercase
      notNull:true,// won't allow null
      isNull:true,// only allows null
      notEmpty:true,// don't allow empty strings
      equals:'specific value',// only allow a specific value
      contains:'foo',// force specific substrings
      notIn:[['foo','bar']],// check the value is not one of these
      isIn:[['foo','bar']],// check the value is one of these
      notContains:'bar',// don't allow specific substrings
      len:[2,10],// only allow values with length between 2 and 10
      isUUID:4,// only allow uuids
      isDate:true,// only allow date strings
      isAfter:"2011-11-05",// only allow date strings after a specific date
      isBefore:"2011-11-05",// only allow date strings before a specific date
      max:23,// only allow values <= 23
      min:23,// only allow values >= 23
      isCreditCard:true,// check for valid credit card numbers// Examples of custom validators:isEven(value)if(parseInt(value)%2!==0)thrownewError('Only even values are allowed!');isGreaterThanOtherField(value)if(parseInt(value)<=parseInt(this.otherField))thrownewError('Bar must be greater than otherField.'););

Ejemplo 2: Sequelizar correo electrónico de tipo

sequelize.define('foo',
  bar:
    type:DataTypes.STRING,
    validate:
      
      isEmail:true,// checks for email format ([email protected])// Examples of custom validators:isEven(value)if(parseInt(value)%2!==0)thrownewError('Only even values are allowed!');isGreaterThanOtherField(value)if(parseInt(value)<=parseInt(this.otherField))thrownewError('Bar must be greater than otherField.'););

Finalizando este artículo puedes encontrar las observaciones de otros gestores de proyectos, tú aún eres capaz mostrar el tuyo si te apetece.

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