Mixin Hooks

View code

Hooks are function that are called before and after (bulk-) creation/updating/deletion and validation. Hooks can be added to you models in three ways:

By specifying them as options in sequelize.define
By calling hook() with a string and your hook handler function
By calling the function with the same name as the hook you want

// Method 1
sequelize.define(name, { attributes }, {
  hooks: {
    beforeBulkCreate: function () {
      // can be a single function
    },
    beforeValidate: [
      function () {},
      function() {} // Or an array of several
    ]
  }
})

// Method 2
Model.hook('afterDestroy', function () {})

// Method 3
Model.afterBulkUpdate(function () {})

See:

Sequelize#define

`addHook(hooktype, [name], fn)`

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Add a hook to the model

Params:

Name	Type	Description
hooktype	String
[name]	String	Provide a name for the hook function. It can be used to remove the hook later or to order hooks based on some sort of priority system in the future.
fn	Function	The hook function

Aliases: hook

`removeHook(hookType, name)`

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Remove hook from the model

Params:

Name	Type	Description
hookType	String
name	String

`hasHook(hookType)`

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Check whether the mode has any hooks of this type

Params:

Name	Type	Description
hookType	String

Aliases: hasHooks

`beforeValidate(name, fn)`

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A hook that is run before validation

Params:

Name	Type	Description
name	String
fn	Function	A callback function that is called with instance, options

`afterValidate(name, fn)`

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A hook that is run after validation

Params:

Name	Type	Description
name	String
fn	Function	A callback function that is called with instance, options

`beforeCreate(name, fn)`

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A hook that is run before creating a single instance

Params:

Name	Type	Description
name	String
fn	Function	A callback function that is called with attributes, options

`afterCreate(name, fn)`

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A hook that is run after creating a single instance

Params:

Name	Type	Description
name	String
fn	Function	A callback function that is called with attributes, options

`beforeDestroy(name, fn)`

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A hook that is run before destroying a single instance

Params:

Name	Type	Description
name	String
fn	Function	A callback function that is called with instance, options

Aliases: beforeDelete

`afterDestroy(name, fn)`

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A hook that is run after destroying a single instance

Params:

Name	Type	Description
name	String
fn	Function	A callback function that is called with instance, options

Aliases: afterDelete

`beforeRestore(name, fn)`

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A hook that is run before restoring a single instance

Params:

Name	Type	Description
name	String
fn	Function	A callback function that is called with instance, options

`afterRestore(name, fn)`

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A hook that is run after restoring a single instance

Params:

Name	Type	Description
name	String
fn	Function	A callback function that is called with instance, options

`beforeUpdate(name, fn)`

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A hook that is run before updating a single instance

Params:

Name	Type	Description
name	String
fn	Function	A callback function that is called with instance, options

`afterUpdate(name, fn)`

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A hook that is run after updating a single instance

Params:

Name	Type	Description
name	String
fn	Function	A callback function that is called with instance, options

`beforeBulkCreate(name, fn)`

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A hook that is run before creating instances in bulk

Params:

Name	Type	Description
name	String
fn	Function	A callback function that is called with instances, options

`afterBulkCreate(name, fn)`

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A hook that is run after creating instances in bulk

Params:

Name	Type	Description
name	String
fn	Function	A callback function that is called with instances, options

`beforeBulkDestroy(name, fn)`

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A hook that is run before destroying instances in bulk

Params:

Name	Type	Description
name	String
fn	Function	A callback function that is called with options

Aliases: beforeBulkDelete

`afterBulkDestroy(name, fn)`

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A hook that is run after destroying instances in bulk

Params:

Name	Type	Description
name	String
fn	Function	A callback function that is called with options

Aliases: afterBulkDelete

`beforeBulkRestore(name, fn)`

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A hook that is run before restoring instances in bulk

Params:

Name	Type	Description
name	String
fn	Function	A callback function that is called with options

`afterBulkRestore(name, fn)`

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A hook that is run after restoring instances in bulk

Params:

Name	Type	Description
name	String
fn	Function	A callback function that is called with options

`beforeBulkUpdate(name, fn)`

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A hook that is run before updating instances in bulk

Params:

Name	Type	Description
name	String
fn	Function	A callback function that is called with options

`afterBulkUpdate(name, fn)`

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A hook that is run after updating instances in bulk

Params:

Name	Type	Description
name	String
fn	Function	A callback function that is called with options

`beforeFind(name, fn)`

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A hook that is run before a find (select) query

Params:

Name	Type	Description
name	String
fn	Function	A callback function that is called with options

`beforeFindAfterExpandIncludeAll(name, fn)`

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A hook that is run before a find (select) query, after any { include: {all: ...} } options are expanded

Params:

Name	Type	Description
name	String
fn	Function	A callback function that is called with options

`beforeFindAfterOptions(name, fn)`

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A hook that is run before a find (select) query, after all option parsing is complete

Params:

Name	Type	Description
name	String
fn	Function	A callback function that is called with options

`afterFind(name, fn)`

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A hook that is run after a find (select) query

Params:

Name	Type	Description
name	String
fn	Function	A callback function that is called with instance(s), options

`beforeDefine(name, fn)`

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A hook that is run before a define call

Params:

Name	Type	Description
name	String
fn	Function	A callback function that is called with attributes, options

`afterDefine(name, fn)`

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A hook that is run after a define call

Params:

Name	Type	Description
name	String
fn	Function	A callback function that is called with factory

`beforeInit(name, fn)`

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A hook that is run before Sequelize() call

Params:

Name	Type	Description
name	String
fn	Function	A callback function that is called with config, options

`afterInit(name, fn)`

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A hook that is run after Sequelize() call

Params:

Name	Type	Description
name	String
fn	Function	A callback function that is called with sequelize

`beforeSync(name, fn)`

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A hook that is run before Model.sync call

Params:

Name	Type	Description
name	String
fn	Function	A callback function that is called with options passed to Model.sync

`afterSync(name, fn)`

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A hook that is run after Model.sync call

Params:

Name	Type	Description
name	String
fn	Function	A callback function that is called with options passed to Model.sync

`beforeBulkSync(name, fn)`

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A hook that is run before sequelize.sync call

Params:

Name	Type	Description
name	String
fn	Function	A callback function that is called with options passed to sequelize.sync

`afterBulkSync`

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A hook that is run after sequelize.sync call

Params:

Name	Type	Description
name	String
fn	Function	A callback function that is called with options passed to sequelize.sync

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