新闻 Sequelize v 4.0 发布，Node.js 的 ORM 下载

Sequelize v4.0 发布了，Sequelize.js 提供对 MySQL，MariaDB，SQLite 和 PostgreSQL 数据库的简单访问，通过映射数据库条目到对象，或者对象到数据库条目。简而言之，就是 ORM（Object-Relational-Mapper）。Sequelize.js 完全是使用 JavaScript 编写，适用于 Node.js 的环境。

更新内容：


changelog：

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  [FIXED] Pass ResourceLock instead of raw connection in MSSQL disconnect handling
  
  
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  [CHANGED] Remove hookValidate in favor of validate with hooks: true | false.
  
  
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  [REMOVED] Support for referencesKey
  
  
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  [CHANGED] Throw if dialect is not provided to the constructor
  
  
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  [CHANGED] Throw bluebird.AggregateError instead of array from bulkCreate when validation fails
  
  
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  [FIXED] $notIn: [] is now converted to NOT IN (NULL) #4859
  
  
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  [FIXED] Add raw support to instance.get() #5815
  
  
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  [ADDED] Compare deletedAt against current timestamp when using paranoid #5880
  
  
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  [FIXED] BIGINT gets truncated #5176
  
  
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  [FIXED] Trigger afterCreate hook after all nested includes (for hasMany or belongsToMany associations) have been created to be consistent with hasOne.
  
  
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  [REMOVED] Support for pool:false
  
  
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  [REMOVED] Default transaction isolation level #5094
  
  
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  [ADDED] Add logging for mysql warnings, observant of the showWarnings option. #5900
  
  
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  [REMOVED] MariaDB dialect
  
  
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  [FIXED] hasOne now prefer aliases to construct foreign key #5247
  
  
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  [CHANGED] instance.equals now only checks primary keys, instead of all attributes.
  
  
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  [REWRITE] Rewrite model and instance to a single class - instance instanceof Model #5924
  
  
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  [REMOVED] Counter cache plugin
  

BC breaks:

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  hookValidate removed in favor of validate with hooks: true | false. validate returns a promise which is rejected if validation fails
  
  
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  Removed support for referencesKey, use a references object
  
  
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  Remove default dialect
  
  
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  When bulkCreate is rejected because of validation failure it throws a bluebird.AggregateErrorinstead of an array. This object is an array-like so length and index access will still work, butinstanceof array will not
  
  
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  $notIn: [] will now match all rows instead of none
  
  
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  (MySQL) BIGINT now gets converted to string when number is too big
  
  
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  Removed support for pool:false, if you still want to use single connection set pool.max to 1
  
  
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  Removed default REPEATABLE_READ transaction isolation, use config option to explicitly set it
  
  
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  Removed MariaDB dialect - this was just a thin wrapper around MySQL, so using dialect: 'mysql' instead should work with no further changes
  
  
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  hasOne now prefer as option to generate foreign key name, otherwise it defaults to source model name
  
  
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  instance.equals now provides reference equality (do two instances refer to the same row, i.e. are their primary key(s) equal). Use instance.get() to get and compare all values.
  
  
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  Instances (database rows) are now instances of the model, instead of being a separate class. This means you can replace User.build() with new User() and sequelize.define with User extends Sequelize.Model. See #5924
  
  
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  The counter cache plugin, and consequently the counterCache option for associations has been removed. The plugin is seeking a new maintainer - You can find the code here
  

下载地址：

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  Source code (zip)
  
  
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  Source code (tar.gz)
  

Sequelize v 4.0 发布，Node.js 的 ORM下载地址