sequelize入门

摘要：最近在公司接触到了的框架，研究了一下官方文档，做了以下整理其他定义方法字段类型是否允许为字段是否自定义表名是否需要增加字段不需要字段将字段改个名将字段改名同时需要设置为此种模式下，删除数据时不会进行物理删除，而是设置为当前时间

最近在公司接触到了sequelize(Nodejs的ORM框架)，研究了一下官方文档，做了以下整理

let DeviceInterface = Sequelize.define("DeviceInterface", {
        name: {
            type: Sequelize.STRING,
            allowNull: false
        },
        createBy: {
            type: Sequelize.INTEGER,
            defaultValue: "-1"
        },
        image: {
            type: Sequelize.STRING
        },
        desc: {
            type: Sequelize.STRING
        }
    }, {
        tableName: "DeviceInterface"
    });

Sequelize.STRING                      // VARCHAR(255)
Sequelize.STRING(1234)                // VARCHAR(1234)
Sequelize.STRING.BINARY               // VARCHAR BINARY
Sequelize.TEXT                        // TEXT
Sequelize.TEXT("tiny")                // TINYTEXT

Sequelize.INTEGER                     // INTEGER
Sequelize.BIGINT                      // BIGINT
Sequelize.BIGINT(11)                  // BIGINT(11)

Sequelize.FLOAT                       // FLOAT
Sequelize.FLOAT(11)                   // FLOAT(11)
Sequelize.FLOAT(11, 12)               // FLOAT(11,12)

Sequelize.REAL                        // REAL        PostgreSQL only.
Sequelize.REAL(11)                    // REAL(11)    PostgreSQL only.
Sequelize.REAL(11, 12)                // REAL(11,12) PostgreSQL only.

Sequelize.DOUBLE                      // DOUBLE
Sequelize.DOUBLE(11)                  // DOUBLE(11)
Sequelize.DOUBLE(11, 12)              // DOUBLE(11,12)

Sequelize.DECIMAL                     // DECIMAL
Sequelize.DECIMAL(10, 2)              // DECIMAL(10,2)

Sequelize.DATE                        // DATETIME for mysql / sqlite, TIMESTAMP WITH TIME ZONE for postgres
Sequelize.DATE(6)                     // DATETIME(6) for mysql 5.6.4+. Fractional seconds support with up to 6 digits of precision 
Sequelize.DATEONLY                    // DATE without time.
Sequelize.BOOLEAN                     // TINYINT(1)

Sequelize.ENUM("value 1", "value 2")  // An ENUM with allowed values "value 1" and "value 2"
Sequelize.ARRAY(Sequelize.TEXT)       // Defines an array. PostgreSQL only.

Sequelize.JSON                        // JSON column. PostgreSQL only.
Sequelize.JSONB                       // JSONB column. PostgreSQL only.

Sequelize.BLOB                        // BLOB (bytea for PostgreSQL)
Sequelize.BLOB("tiny")                // TINYBLOB (bytea for PostgreSQL. Other options are medium and long)

Sequelize.UUID                        // UUID datatype for PostgreSQL and SQLite, CHAR(36) BINARY for MySQL (use defaultValue: Sequelize.UUIDV1 or Sequelize.UUIDV4 to make sequelize generate the ids automatically)

Sequelize.RANGE(Sequelize.INTEGER)    // Defines int4range range. PostgreSQL only.
Sequelize.RANGE(Sequelize.BIGINT)     // Defined int8range range. PostgreSQL only.
Sequelize.RANGE(Sequelize.DATE)       // Defines tstzrange range. PostgreSQL only.
Sequelize.RANGE(Sequelize.DATEONLY)   // Defines daterange range. PostgreSQL only.
Sequelize.RANGE(Sequelize.DECIMAL)    // Defines numrange range. PostgreSQL only.

Sequelize.ARRAY(Sequelize.RANGE(Sequelize.DATE)) // Defines array of tstzrange ranges. PostgreSQL only.

Sequelize.GEOMETRY                    // Spatial column.  PostgreSQL (with PostGIS) or MySQL only.
Sequelize.GEOMETRY("POINT")           // Spatial column with geometry type.  PostgreSQL (with PostGIS) or MySQL only.
Sequelize.GEOMETRY("POINT", 4326)     // Spatial column with geometry type and SRID.  PostgreSQL (with PostGIS) or MySQL only.

var User = sequelize.define(
    "user",
    {
        "emp_id": {
            "type": Sequelize.CHAR(10), // 字段类型
            "allowNull": false,         // 是否允许为NULL
            "unique": true              // 字段是否UNIQUE
        },
        "nick": {
            "type": Sequelize.CHAR(10),
            "allowNull": false
        },
        "department": {
            "type": Sequelize.STRING(64),
            "allowNull": true
        }
    },
    {
        // 自定义表名
        "freezeTableName": true,
        "tableName": "xyz_users",

        // 是否需要增加createdAt、updatedAt、deletedAt字段
        "timestamps": true,

        // 不需要createdAt字段
        "createdAt": false,

        // 将updatedAt字段改个名
        "updatedAt": "utime"

        // 将deletedAt字段改名
        // 同时需要设置paranoid为true（此种模式下，删除数据时不会进行物理删除，而是设置deletedAt为当前时间
        "deletedAt": "dtime",
        "paranoid": true
    }
);