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data-types.js
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data-types.js
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'use strict';
const util = require('util');
const inherits = require('./utils/inherits');
const _ = require('lodash');
const Wkt = require('terraformer-wkt-parser');
const sequelizeErrors = require('./errors');
const warnings = {};
const Validator = require('./utils/validator-extras').validator;
const momentTz = require('moment-timezone');
const moment = require('moment');
const Utils = require('./utils');
function ABSTRACT() {}
ABSTRACT.prototype.dialectTypes = '';
ABSTRACT.prototype.toString = function toString(options) {
return this.toSql(options);
};
ABSTRACT.prototype.toSql = function toSql() {
return this.key;
};
ABSTRACT.warn = function warn(link, text) {
if (!warnings[text]) {
warnings[text] = true;
Utils.warn(`${text}, '\n>> Check:', ${link}`);
}
};
ABSTRACT.prototype.stringify = function stringify(value, options) {
if (this._stringify) {
return this._stringify(value, options);
}
return value;
};
ABSTRACT.prototype.bindParam = function bindParam(value, options) {
if (this._bindParam) {
return this._bindParam(value, options);
}
return options.bindParam(this.stringify(value, options));
};
function STRING(length, binary) {
const options = typeof length === 'object' && length || {length, binary};
if (!(this instanceof STRING)) return new STRING(options);
this.options = options;
this._binary = options.binary;
this._length = options.length || 255;
}
inherits(STRING, ABSTRACT);
STRING.prototype.key = STRING.key = 'STRING';
STRING.prototype.toSql = function toSql() {
return 'VARCHAR(' + this._length + ')' + (this._binary ? ' BINARY' : '');
};
STRING.prototype.validate = function validate(value) {
if (Object.prototype.toString.call(value) !== '[object String]') {
if (this.options.binary && Buffer.isBuffer(value) || _.isNumber(value)) {
return true;
}
throw new sequelizeErrors.ValidationError(util.format('%j is not a valid string', value));
}
return true;
};
Object.defineProperty(STRING.prototype, 'BINARY', {
get() {
this._binary = true;
this.options.binary = true;
return this;
}
});
function CHAR(length, binary) {
const options = typeof length === 'object' && length || {length, binary};
if (!(this instanceof CHAR)) return new CHAR(options);
STRING.apply(this, arguments);
}
inherits(CHAR, STRING);
CHAR.prototype.key = CHAR.key = 'CHAR';
CHAR.prototype.toSql = function toSql() {
return 'CHAR(' + this._length + ')' + (this._binary ? ' BINARY' : '');
};
function TEXT(length) {
const options = typeof length === 'object' && length || {length};
if (!(this instanceof TEXT)) return new TEXT(options);
this.options = options;
this._length = options.length || '';
}
inherits(TEXT, ABSTRACT);
TEXT.prototype.key = TEXT.key = 'TEXT';
TEXT.prototype.toSql = function toSql() {
switch (this._length.toLowerCase()) {
case 'tiny':
return 'TINYTEXT';
case 'medium':
return 'MEDIUMTEXT';
case 'long':
return 'LONGTEXT';
default:
return this.key;
}
};
TEXT.prototype.validate = function validate(value) {
if (!_.isString(value)) {
throw new sequelizeErrors.ValidationError(util.format('%j is not a valid string', value));
}
return true;
};
function NUMBER(options) {
this.options = options;
this._length = options.length;
this._zerofill = options.zerofill;
this._decimals = options.decimals;
this._precision = options.precision;
this._scale = options.scale;
this._unsigned = options.unsigned;
}
inherits(NUMBER, ABSTRACT);
NUMBER.prototype.key = NUMBER.key = 'NUMBER';
NUMBER.prototype.toSql = function toSql() {
let result = this.key;
if (this._length) {
result += '(' + this._length;
if (typeof this._decimals === 'number') {
result += ',' + this._decimals;
}
result += ')';
}
if (this._unsigned) {
result += ' UNSIGNED';
}
if (this._zerofill) {
result += ' ZEROFILL';
}
return result;
};
NUMBER.prototype.validate = function(value) {
if (!Validator.isFloat(String(value))) {
throw new sequelizeErrors.ValidationError(util.format('%j is not a valid ' + _.toLower(this.key), value));
}
return true;
};
Object.defineProperty(NUMBER.prototype, 'UNSIGNED', {
get() {
this._unsigned = true;
this.options.unsigned = true;
return this;
}
});
Object.defineProperty(NUMBER.prototype, 'ZEROFILL', {
get() {
this._zerofill = true;
this.options.zerofill = true;
return this;
}
});
function INTEGER(length) {
const options = typeof length === 'object' && length || {length};
if (!(this instanceof INTEGER)) return new INTEGER(options);
NUMBER.call(this, options);
}
inherits(INTEGER, NUMBER);
INTEGER.prototype.key = INTEGER.key = 'INTEGER';
INTEGER.prototype.validate = function validate(value) {
if (!Validator.isInt(String(value))) {
throw new sequelizeErrors.ValidationError(util.format('%j is not a valid ' + _.toLower(this.key), value));
}
return true;
};
function TINYINT(length) {
const options = typeof length === 'object' && length || {length};
if (!(this instanceof TINYINT)) return new TINYINT(options);
NUMBER.call(this, options);
}
inherits(TINYINT, INTEGER);
TINYINT.prototype.key = TINYINT.key = 'TINYINT';
function SMALLINT(length) {
const options = typeof length === 'object' && length || {length};
if (!(this instanceof SMALLINT)) return new SMALLINT(options);
NUMBER.call(this, options);
}
inherits(SMALLINT, INTEGER);
SMALLINT.prototype.key = SMALLINT.key = 'SMALLINT';
function MEDIUMINT(length) {
const options = typeof length === 'object' && length || {length};
if (!(this instanceof MEDIUMINT)) return new MEDIUMINT(options);
NUMBER.call(this, options);
}
inherits(MEDIUMINT, INTEGER);
MEDIUMINT.prototype.key = MEDIUMINT.key = 'MEDIUMINT';
function BIGINT(length) {
const options = typeof length === 'object' && length || {length};
if (!(this instanceof BIGINT)) return new BIGINT(options);
NUMBER.call(this, options);
}
inherits(BIGINT, INTEGER);
BIGINT.prototype.key = BIGINT.key = 'BIGINT';
function FLOAT(length, decimals) {
const options = typeof length === 'object' && length || {length, decimals};
if (!(this instanceof FLOAT)) return new FLOAT(options);
NUMBER.call(this, options);
}
inherits(FLOAT, NUMBER);
FLOAT.prototype.key = FLOAT.key = 'FLOAT';
FLOAT.prototype.validate = function validate(value) {
if (!Validator.isFloat(String(value))) {
throw new sequelizeErrors.ValidationError(util.format('%j is not a valid float', value));
}
return true;
};
function REAL(length, decimals) {
const options = typeof length === 'object' && length || {length, decimals};
if (!(this instanceof REAL)) return new REAL(options);
NUMBER.call(this, options);
}
inherits(REAL, NUMBER);
REAL.prototype.key = REAL.key = 'REAL';
function DOUBLE(length, decimals) {
const options = typeof length === 'object' && length || {length, decimals};
if (!(this instanceof DOUBLE)) return new DOUBLE(options);
NUMBER.call(this, options);
}
inherits(DOUBLE, NUMBER);
DOUBLE.prototype.key = DOUBLE.key = 'DOUBLE PRECISION';
function DECIMAL(precision, scale) {
const options = typeof precision === 'object' && precision || {precision, scale};
if (!(this instanceof DECIMAL)) return new DECIMAL(options);
NUMBER.call(this, options);
}
inherits(DECIMAL, NUMBER);
DECIMAL.prototype.key = DECIMAL.key = 'DECIMAL';
DECIMAL.prototype.toSql = function toSql() {
if (this._precision || this._scale) {
return 'DECIMAL(' + [this._precision, this._scale].filter(_.identity).join(',') + ')';
}
return 'DECIMAL';
};
DECIMAL.prototype.validate = function validate(value) {
if (!Validator.isDecimal(String(value))) {
throw new sequelizeErrors.ValidationError(util.format('%j is not a valid decimal', value));
}
return true;
};
for (const floating of [FLOAT, DOUBLE, REAL]) {
floating.prototype.escape = false;
floating.prototype._value = function _value(value) {
if (isNaN(value)) {
return 'NaN';
} else if (!isFinite(value)) {
const sign = value < 0 ? '-' : '';
return sign + 'Infinity';
}
return value;
};
floating.prototype._stringify = function _stringify(value) {
return "'" + this._value(value) + "'";
};
floating.prototype._bindParam = function _bindParam(value, options) {
return options.bindParam(this._value(value));
};
}
function BOOLEAN() {
if (!(this instanceof BOOLEAN)) return new BOOLEAN();
}
inherits(BOOLEAN, ABSTRACT);
BOOLEAN.prototype.key = BOOLEAN.key = 'BOOLEAN';
BOOLEAN.prototype.toSql = function toSql() {
return 'TINYINT(1)';
};
BOOLEAN.prototype.validate = function validate(value) {
if (!Validator.isBoolean(String(value))) {
throw new sequelizeErrors.ValidationError(util.format('%j is not a valid boolean', value));
}
return true;
};
BOOLEAN.prototype._sanitize = function _sanitize(value) {
if (value !== null && value !== undefined) {
if (Buffer.isBuffer(value) && value.length === 1) {
// Bit fields are returned as buffers
value = value[0];
}
if (_.isString(value)) {
// Only take action on valid boolean strings.
value = value === 'true' ? true : value === 'false' ? false : value;
} else if (_.isNumber(value)) {
// Only take action on valid boolean integers.
value = value === 1 ? true : value === 0 ? false : value;
}
}
return value;
};
BOOLEAN.parse = BOOLEAN.prototype._sanitize;
function TIME() {
if (!(this instanceof TIME)) return new TIME();
}
inherits(TIME, ABSTRACT);
TIME.prototype.key = TIME.key = 'TIME';
TIME.prototype.toSql = function toSql() {
return 'TIME';
};
function DATE(length) {
const options = typeof length === 'object' && length || {length};
if (!(this instanceof DATE)) return new DATE(options);
this.options = options;
this._length = options.length || '';
}
inherits(DATE, ABSTRACT);
DATE.prototype.key = DATE.key = 'DATE';
DATE.prototype.toSql = function toSql() {
return 'DATETIME';
};
DATE.prototype.validate = function validate(value) {
if (!Validator.isDate(String(value))) {
throw new sequelizeErrors.ValidationError(util.format('%j is not a valid date', value));
}
return true;
};
DATE.prototype._sanitize = function _sanitize(value, options) {
if ((!options || options && !options.raw) && !(value instanceof Date) && !!value) {
return new Date(value);
}
return value;
};
DATE.prototype._isChanged = function _isChanged(value, originalValue) {
if (
originalValue && !!value &&
(
value === originalValue ||
value instanceof Date && originalValue instanceof Date && value.getTime() === originalValue.getTime()
)
) {
return false;
}
// not changed when set to same empty value
if (!originalValue && !value && originalValue === value) {
return false;
}
return true;
};
DATE.prototype._applyTimezone = function _applyTimezone(date, options) {
if (options.timezone) {
if (momentTz.tz.zone(options.timezone)) {
date = momentTz(date).tz(options.timezone);
} else {
date = moment(date).utcOffset(options.timezone);
}
} else {
date = momentTz(date);
}
return date;
};
DATE.prototype._stringify = function _stringify(date, options) {
date = this._applyTimezone(date, options);
// Z here means current timezone, _not_ UTC
return date.format('YYYY-MM-DD HH:mm:ss.SSS Z');
};
function DATEONLY() {
if (!(this instanceof DATEONLY)) return new DATEONLY();
}
util.inherits(DATEONLY, ABSTRACT);
DATEONLY.prototype.key = DATEONLY.key = 'DATEONLY';
DATEONLY.prototype.toSql = function() {
return 'DATE';
};
DATEONLY.prototype._stringify = function _stringify(date) {
return moment(date).format('YYYY-MM-DD');
};
DATEONLY.prototype._sanitize = function _sanitize(value, options) {
if ((!options || options && !options.raw) && !!value) {
return moment(value).format('YYYY-MM-DD');
}
return value;
};
DATEONLY.prototype._isChanged = function _isChanged(value, originalValue) {
if (originalValue && !!value && originalValue === value) {
return false;
}
// not changed when set to same empty value
if (!originalValue && !value && originalValue === value) {
return false;
}
return true;
};
function HSTORE() {
if (!(this instanceof HSTORE)) return new HSTORE();
}
inherits(HSTORE, ABSTRACT);
HSTORE.prototype.key = HSTORE.key = 'HSTORE';
HSTORE.prototype.validate = function validate(value) {
if (!_.isPlainObject(value)) {
throw new sequelizeErrors.ValidationError(util.format('%j is not a valid hstore', value));
}
return true;
};
function JSONTYPE() {
if (!(this instanceof JSONTYPE)) return new JSONTYPE();
}
inherits(JSONTYPE, ABSTRACT);
JSONTYPE.prototype.key = JSONTYPE.key = 'JSON';
JSONTYPE.prototype.validate = function validate() {
return true;
};
JSONTYPE.prototype._stringify = function _stringify(value) {
return JSON.stringify(value);
};
function JSONB() {
if (!(this instanceof JSONB)) return new JSONB();
JSONTYPE.call(this);
}
inherits(JSONB, JSONTYPE);
JSONB.prototype.key = JSONB.key = 'JSONB';
function NOW() {
if (!(this instanceof NOW)) return new NOW();
}
inherits(NOW, ABSTRACT);
NOW.prototype.key = NOW.key = 'NOW';
function BLOB(length) {
const options = typeof length === 'object' && length || {length};
if (!(this instanceof BLOB)) return new BLOB(options);
this.options = options;
this._length = options.length || '';
}
inherits(BLOB, ABSTRACT);
BLOB.prototype.key = BLOB.key = 'BLOB';
BLOB.prototype.toSql = function toSql() {
switch (this._length.toLowerCase()) {
case 'tiny':
return 'TINYBLOB';
case 'medium':
return 'MEDIUMBLOB';
case 'long':
return 'LONGBLOB';
default:
return this.key;
}
};
BLOB.prototype.validate = function validate(value) {
if (!_.isString(value) && !Buffer.isBuffer(value)) {
throw new sequelizeErrors.ValidationError(util.format('%j is not a valid blob', value));
}
return true;
};
BLOB.prototype.escape = false;
BLOB.prototype._stringify = function _stringify(value) {
if (!Buffer.isBuffer(value)) {
if (Array.isArray(value)) {
value = Buffer.from(value);
} else {
value = Buffer.from(value.toString());
}
}
const hex = value.toString('hex');
return this._hexify(hex);
};
BLOB.prototype._hexify = function _hexify(hex) {
return "X'" + hex + "'";
};
BLOB.prototype._bindParam = function _bindParam(value, options) {
if (!Buffer.isBuffer(value)) {
if (Array.isArray(value)) {
value = Buffer.from(value);
} else {
value = Buffer.from(value.toString());
}
}
return options.bindParam(value);
};
function RANGE(subtype) {
const options = _.isPlainObject(subtype) ? subtype : {subtype};
if (!options.subtype) options.subtype = new INTEGER();
if (_.isFunction(options.subtype)) {
options.subtype = new options.subtype();
}
if (!(this instanceof RANGE)) return new RANGE(options);
this._subtype = options.subtype.key;
this.options = options;
}
inherits(RANGE, ABSTRACT);
const pgRangeSubtypes = {
integer: 'int4range',
bigint: 'int8range',
decimal: 'numrange',
dateonly: 'daterange',
date: 'tstzrange',
datenotz: 'tsrange'
};
const pgRangeCastTypes = {
integer: 'integer',
bigint: 'bigint',
decimal: 'numeric',
dateonly: 'date',
date: 'timestamptz',
datenotz: 'timestamp'
};
RANGE.prototype.key = RANGE.key = 'RANGE';
RANGE.prototype.toSql = function toSql() {
return pgRangeSubtypes[this._subtype.toLowerCase()];
};
RANGE.prototype.toCastType = function toCastType() {
return pgRangeCastTypes[this._subtype.toLowerCase()];
};
RANGE.prototype.validate = function validate(value) {
if (!_.isArray(value)) {
throw new sequelizeErrors.ValidationError(util.format('%j is not a valid range', value));
}
if (value.length !== 2) {
throw new sequelizeErrors.ValidationError('A range must be an array with two elements');
}
return true;
};
function UUID() {
if (!(this instanceof UUID)) return new UUID();
}
inherits(UUID, ABSTRACT);
UUID.prototype.key = UUID.key = 'UUID';
UUID.prototype.validate = function validate(value, options) {
if (!_.isString(value) || !Validator.isUUID(value) && (!options || !options.acceptStrings)) {
throw new sequelizeErrors.ValidationError(util.format('%j is not a valid uuid', value));
}
return true;
};
function UUIDV1() {
if (!(this instanceof UUIDV1)) return new UUIDV1();
}
inherits(UUIDV1, ABSTRACT);
UUIDV1.prototype.key = UUIDV1.key = 'UUIDV1';
UUIDV1.prototype.validate = function validate(value, options) {
if (!_.isString(value) || !Validator.isUUID(value) && (!options || !options.acceptStrings)) {
throw new sequelizeErrors.ValidationError(util.format('%j is not a valid uuid', value));
}
return true;
};
function UUIDV4() {
if (!(this instanceof UUIDV4)) return new UUIDV4();
}
inherits(UUIDV4, ABSTRACT);
UUIDV4.prototype.key = UUIDV4.key = 'UUIDV4';
UUIDV4.prototype.validate = function validate(value, options) {
if (!_.isString(value) || !Validator.isUUID(value, 4) && (!options || !options.acceptStrings)) {
throw new sequelizeErrors.ValidationError(util.format('%j is not a valid uuidv4', value));
}
return true;
};
function VIRTUAL(ReturnType, fields) {
if (!(this instanceof VIRTUAL)) return new VIRTUAL(ReturnType, fields);
if (typeof ReturnType === 'function') ReturnType = new ReturnType();
this.returnType = ReturnType;
this.fields = fields;
}
inherits(VIRTUAL, ABSTRACT);
VIRTUAL.prototype.key = VIRTUAL.key = 'VIRTUAL';
function ENUM(value) {
const options = typeof value === 'object' && !Array.isArray(value) && value || {
values: Array.prototype.slice.call(arguments).reduce((result, element) => {
return result.concat(Array.isArray(element) ? element : [element]);
}, [])
};
if (!(this instanceof ENUM)) return new ENUM(options);
this.values = options.values;
this.options = options;
}
inherits(ENUM, ABSTRACT);
ENUM.prototype.key = ENUM.key = 'ENUM';
ENUM.prototype.validate = function validate(value) {
if (!_.includes(this.values, value)) {
throw new sequelizeErrors.ValidationError(util.format('%j is not a valid choice in %j', value, this.values));
}
return true;
};
function ARRAY(type) {
const options = _.isPlainObject(type) ? type : {type};
if (!(this instanceof ARRAY)) return new ARRAY(options);
this.type = typeof options.type === 'function' ? new options.type() : options.type;
}
inherits(ARRAY, ABSTRACT);
ARRAY.prototype.key = ARRAY.key = 'ARRAY';
ARRAY.prototype.toSql = function toSql() {
return this.type.toSql() + '[]';
};
ARRAY.prototype.validate = function validate(value) {
if (!_.isArray(value)) {
throw new sequelizeErrors.ValidationError(util.format('%j is not a valid array', value));
}
return true;
};
ARRAY.is = function is(obj, type) {
return obj instanceof ARRAY && obj.type instanceof type;
};
const helpers = {
BINARY: [STRING, CHAR],
UNSIGNED: [NUMBER, TINYINT, SMALLINT, MEDIUMINT, INTEGER, BIGINT, FLOAT, DOUBLE, REAL, DECIMAL],
ZEROFILL: [NUMBER, TINYINT, SMALLINT, MEDIUMINT, INTEGER, BIGINT, FLOAT, DOUBLE, REAL, DECIMAL],
PRECISION: [DECIMAL],
SCALE: [DECIMAL]
};
function GEOMETRY(type, srid) {
const options = _.isPlainObject(type) ? type : {type, srid};
if (!(this instanceof GEOMETRY)) return new GEOMETRY(options);
this.options = options;
this.type = options.type;
this.srid = options.srid;
}
inherits(GEOMETRY, ABSTRACT);
GEOMETRY.prototype.key = GEOMETRY.key = 'GEOMETRY';
GEOMETRY.prototype.escape = false;
GEOMETRY.prototype._stringify = function _stringify(value, options) {
return 'GeomFromText(' + options.escape(Wkt.convert(value)) + ')';
};
GEOMETRY.prototype._bindParam = function _bindParam(value, options) {
return 'GeomFromText(' + options.bindParam(Wkt.convert(value)) + ')';
};
function GEOGRAPHY(type, srid) {
const options = _.isPlainObject(type) ? type : {type, srid};
if (!(this instanceof GEOGRAPHY)) return new GEOGRAPHY(options);
this.options = options;
this.type = options.type;
this.srid = options.srid;
}
inherits(GEOGRAPHY, ABSTRACT);
GEOGRAPHY.prototype.key = GEOGRAPHY.key = 'GEOGRAPHY';
GEOGRAPHY.prototype.escape = false;
GEOGRAPHY.prototype._stringify = function _stringify(value, options) {
return 'GeomFromText(' + options.escape(Wkt.convert(value)) + ')';
};
GEOGRAPHY.prototype._bindParam = function _bindParam(value, options) {
return 'GeomFromText(' + options.bindParam(Wkt.convert(value)) + ')';
};
for (const helper of Object.keys(helpers)) {
for (const DataType of helpers[helper]) {
if (!DataType[helper]) {
Object.defineProperty(DataType, helper, {
get() {
const dataType = new DataType();
if (typeof dataType[helper] === 'object') {
return dataType;
}
return dataType[helper].apply(dataType, arguments);
}
});
}
}
}
/**
* A convenience class holding commonly used data types. The datatypes are used when defining a new model using `Sequelize.define`, like this:
* ```js
* sequelize.define('model', {
* column: DataTypes.INTEGER
* })
* ```
* When defining a model you can just as easily pass a string as type, but often using the types defined here is beneficial. For example, using `DataTypes.BLOB`, mean
* that that column will be returned as an instance of `Buffer` when being fetched by sequelize.
*
* To provide a length for the data type, you can invoke it like a function: `INTEGER(2)`
*
* Some data types have special properties that can be accessed in order to change the data type.
* For example, to get an unsigned integer with zerofill you can do `DataTypes.INTEGER.UNSIGNED.ZEROFILL`.
* The order you access the properties in do not matter, so `DataTypes.INTEGER.ZEROFILL.UNSIGNED` is fine as well.
*
* * All number types (`INTEGER`, `BIGINT`, `FLOAT`, `DOUBLE`, `REAL`, `DECIMAL`) expose the properties `UNSIGNED` and `ZEROFILL`
* * The `CHAR` and `STRING` types expose the `BINARY` property
*
*
* Three of the values provided here (`NOW`, `UUIDV1` and `UUIDV4`) are special default values, that should not be used to define types. Instead they are used as shorthands for
* defining default values. For example, to get a uuid field with a default value generated following v1 of the UUID standard:
* ```js`
* sequelize.define('model',` {
* uuid: {
* type: DataTypes.UUID,
* defaultValue: DataTypes.UUIDV1,
* primaryKey: true
* }
* })
* ```
* There may be times when you want to generate your own UUID conforming to some other algorithm. This is accomplished
* using the defaultValue property as well, but instead of specifying one of the supplied UUID types, you return a value
* from a function.
* ```js
* sequelize.define('model', {
* uuid: {
* type: DataTypes.UUID,
* defaultValue: function() {
* return generateMyId()
* },
* primaryKey: true
* }
* })
* ```
*
* @property {function(length=255: integer)} STRING A variable length string
* @property {function(length=255: integer)} CHAR A fixed length string.
* @property {function(length: string)} TEXT An unlimited length text column. Available lengths: `tiny`, `medium`, `long`
* @property {function(length: integer)} TINYINT A 8 bit integer.
* @property {function(length: integer)} SMALLINT A 16 bit integer.
* @property {function(length: integer)} MEDIUMINT A 24 bit integer.
* @property {function(length=255: integer)} INTEGER A 32 bit integer.
* @property {function(length: integer)} BIGINT A 64 bit integer. Note: an attribute defined as `BIGINT` will be treated like a `string` due this [feature from node-postgres](https://github.com/brianc/node-postgres/pull/353) to prevent precision loss. To have this attribute as a `number`, this is a possible [workaround](https://github.com/sequelize/sequelize/issues/2383#issuecomment-58006083).
* @property {function(length: integer, decimals: integer)} FLOAT Floating point number (4-byte precision).
* @property {function(length: integer, decimals: integer)} DOUBLE Floating point number (8-byte precision).
* @property {function(precision: integer, scale: integer)} DECIMAL Decimal number.
* @property {function(length: integer, decimals: integer)} REAL Floating point number (4-byte precision).
* @property {function} BOOLEAN A boolean / tinyint column, depending on dialect
* @property {function(length: string)} BLOB Binary storage. Available lengths: `tiny`, `medium`, `long`
* @property {function(values: string[])} ENUM An enumeration. `DataTypes.ENUM('value', 'another value')`.
* @property {function(length: integer)} DATE A datetime column
* @property {function} DATEONLY A date only column (no timestamp)
* @property {function} TIME A time column
* @property {function} NOW A default value of the current timestamp
* @property {function} UUID A column storing a unique universal identifier. Use with `UUIDV1` or `UUIDV4` for default values.
* @property {function} UUIDV1 A default unique universal identifier generated following the UUID v1 standard
* @property {function} UUIDV4 A default unique universal identifier generated following the UUID v4 standard
* @property {function} HSTORE A key / value store column. Only available in Postgres.
* @property {function} JSON A JSON string column. Available in MySQL, Postgres and SQLite
* @property {function} JSONB A binary storage JSON column. Only available in Postgres.
* @property {function(type: DataTypes)} ARRAY An array of `type`, e.g. `DataTypes.ARRAY(DataTypes.DECIMAL)`. Only available in Postgres.
* @property {function(type: DataTypes)} RANGE Range types are data types representing a range of values of some element type (called the range's subtype).
* Only available in Postgres. See [the Postgres documentation](http://www.postgresql.org/docs/9.4/static/rangetypes.html) for more details
* @property {function(type: string, srid: string)} GEOMETRY A column storing Geometry information. It is only available in PostgreSQL (with PostGIS) or MySQL.
* In MySQL, allowable Geometry types are `POINT`, `LINESTRING`, `POLYGON`.
*
* GeoJSON is accepted as input and returned as output.
* In PostGIS, the GeoJSON is parsed using the PostGIS function `ST_GeomFromGeoJSON`.
* In MySQL it is parsed using the function `GeomFromText`.
* Therefore, one can just follow the [GeoJSON spec](http://geojson.org/geojson-spec.html) for handling geometry objects. See the following examples:
*
* ```js
* // Create a new point:
* const point = { type: 'Point', coordinates: [39.807222,-76.984722]};
*
* User.create({username: 'username', geometry: point });
*
* // Create a new linestring:
* const line = { type: 'LineString', 'coordinates': [ [100.0, 0.0], [101.0, 1.0] ] };
*
* User.create({username: 'username', geometry: line });
*
* // Create a new polygon:
* const polygon = { type: 'Polygon', coordinates: [
* [ [100.0, 0.0], [101.0, 0.0], [101.0, 1.0],
* [100.0, 1.0], [100.0, 0.0] ]
* ]};
*
* User.create({username: 'username', geometry: polygon });
* // Create a new point with a custom SRID:
* const point = {
* type: 'Point',
* coordinates: [39.807222,-76.984722],
* crs: { type: 'name', properties: { name: 'EPSG:4326'} }
* };
*
* User.create({username: 'username', geometry: point })
* ```
* @property {function(type: string, srid: string)} GEOGRAPHY A geography datatype represents two dimensional spacial objects in an elliptic coord system.
* @property {function(returnType: DataTypes, fields: string[])} VIRTUAL A virtual value that is not stored in the DB. This could for example be useful if you want to provide a default value in your model that is returned to the user but not stored in the DB.
*
* You could also use it to validate a value before permuting and storing it. Checking password length before hashing it for example:
* ```js
* sequelize.define('user', {
* password_hash: DataTypes.STRING,
* password: {
* type: DataTypes.VIRTUAL,
* set: function (val) {
* // Remember to set the data value, otherwise it won't be validated
* this.setDataValue('password', val);
* this.setDataValue('password_hash', this.salt + val);
* },
* validate: {
* isLongEnough: function (val) {
* if (val.length < 7) {
* throw new Error("Please choose a longer password")
* }
* }
* }
* }
* })
* ```
* In the above code the password is stored plainly in the password field so it can be validated, but is never stored in the DB.
*
* VIRTUAL also takes a return type and dependency fields as arguments
* If a virtual attribute is present in `attributes` it will automatically pull in the extra fields as well.
* Return type is mostly useful for setups that rely on types like GraphQL.
* ```js
* {
* active: {
* type: new DataTypes.VIRTUAL(DataTypes.BOOLEAN, ['createdAt']),
* get: function() {
* return this.get('createdAt') > Date.now() - (7 * 24 * 60 * 60 * 1000)
* }
* }
* }
* ```
*/
const DataTypes = module.exports = {
ABSTRACT,
STRING,
CHAR,
TEXT,
NUMBER,
TINYINT,
SMALLINT,
MEDIUMINT,
INTEGER,
BIGINT,
FLOAT,
TIME,
DATE,
DATEONLY,
BOOLEAN,
NOW,
BLOB,
DECIMAL,
NUMERIC: DECIMAL,
UUID,
UUIDV1,
UUIDV4,
HSTORE,
JSON: JSONTYPE,
JSONB,
VIRTUAL,
ARRAY,
NONE: VIRTUAL,
ENUM,
RANGE,
REAL,
DOUBLE,
'DOUBLE PRECISION': DOUBLE,
GEOMETRY,
GEOGRAPHY
};
_.each(DataTypes, dataType => {
dataType.types = {};
});
DataTypes.postgres = require('./dialects/postgres/data-types')(DataTypes);
DataTypes.mysql = require('./dialects/mysql/data-types')(DataTypes);
DataTypes.sqlite = require('./dialects/sqlite/data-types')(DataTypes);
DataTypes.mssql = require('./dialects/mssql/data-types')(DataTypes);
module.exports = DataTypes;