Abstract
Optional
values: MakeNullishOptional<TCreationAttributes>Optional
Optional
options: BuildOptionsOptional
This property will become a Symbol in v7 to prevent collisions.
Use Attributes
A similar dummy variable that doesn't exist on the real object. Do not try to access this in real code.
This property will become a Symbol in v7 to prevent collisions.
Use CreationAttributes
A dummy variable that doesn't exist on the real object. This exists so Typescript can infer the type of the attributes in static functions. Don't try to access this!
Optional
createdObject that contains underlying model data
Optional
deletedOptional
idReturns true if this instance has not yet been persisted to the database
A reference to the sequelize instance
Optional
updatedOptional
versionStatic
Readonly
associationsAn object hash from alias to association object
Static
isStatic
Readonly
optionsThe options that the model was initialized with
Static
Readonly
primaryThe name of the primary key attribute
Static
Readonly
primaryThe name of the primary key attributes
Static
Readonly
rawThe attributes of the model.
use Model.getAttributes for better typings.
Static
Optional
Readonly
sequelizeReference to the sequelize instance the model was initialized with
Static
Readonly
tableThe name of the database table
Adds relation between specified instances and source instance
Optional
options: AssociationActionOptionsOptional
Counts related instances (specified by propertyKey) of source instance
Optional
options: AssociationCountOptionsOptional
Creates instances and relate them to source instance
Optional
options: AssociationCreateOptionsOptional
Returns related instance (specified by propertyKey) of source instance
Optional
options: AssociationGetOptionsOptional
Checks if specified instances is related to source instance
Optional
options: AssociationGetOptionsOptional
Removes specified instances from source instance
Optional
options: anyOptional
Sets relation between specified instances and source instance (replaces old relations)
Optional
options: AssociationActionOptionsOptional
Add a hook to the model
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.
If changed is called with a string it will return a boolean indicating whether the value of that key in
dataValues
is different from the value in _previousDataValues
.
If changed is called without an argument, it will return an array of keys that have changed.
If changed is called with two arguments, it will set the property to dirty
.
If changed is called without an argument and no keys have changed, it will return false
.
Decrement the value of one or more columns. This is done in the database, which means it does not use the values currently stored on the Instance. The decrement is done using a
SET column = column - X
query. To get the correct value after an decrement into the Instance you should do a reload.
instance.decrement('number') // decrement number by 1
instance.decrement(['number', 'count'], { by: 2 }) // decrement number and count by 2
instance.decrement({ answer: 42, tries: 1}, { by: 2 }) // decrement answer by 42, and tries by 1.
// `by` is ignored, since each column has its own
// value
If a string is provided, that column is decremented by the value of by
given in options.
If an array is provided, the same is true for each column.
If and object is provided, each column is decremented by the value given
Optional
options: IncrementDecrementOptionsWithBy<TModelAttributes>Optional
Destroy the row corresponding to this instance. Depending on your setting for paranoid, the row will either be completely deleted, or have its deletedAt timestamp set to the current time.
Optional
options: InstanceDestroyOptionsOptional
Check whether all values of this and other
Instance are the same
Check if this is equal to one of others
by calling equals
If no key is given, returns all values of the instance, also invoking virtual getters.
If key is given and a field or virtual getter is present for the key it will call that getter - else it will return the value for key.
Optional
options: { Optional
Optional
clone?: booleanOptional
plain?: booleanIf set to true, included instances will be returned as plain objects
Optional
options: { Optional
Optional
clone?: booleanOptional
plain?: booleanOptional
options: { Optional
Optional
clone?: booleanOptional
plain?: booleanIncrement the value of one or more columns. This is done in the database, which means it does not use the values currently stored on the Instance. The increment is done using a
SET column = column + X
query. To get the correct value after an increment into the Instance you should do a reload.
instance.increment('number') // increment number by 1
instance.increment(['number', 'count'], { by: 2 }) // increment number and count by 2
instance.increment({ answer: 42, tries: 1}, { by: 2 }) // increment answer by 42, and tries by 1.
// `by` is ignored, since each column has its own
// value
If a string is provided, that column is incremented by the value of by
given in options.
If an array is provided, the same is true for each column.
If and object is provided, each column is incremented by the value given.
Optional
options: IncrementDecrementOptionsWithBy<TModelAttributes>Optional
Validates this instance, and if the validation passes, persists it to the database.
Returns a Promise that resolves to the saved instance (or rejects with a Sequelize.ValidationError
, which will have a property for each of the fields for which the validation failed, with the error message for that field).
This method is optimized to perform an UPDATE only into the fields that changed. If nothing has changed, no SQL query will be performed.
This method is not aware of eager loaded associations. In other words, if some other model instance (child) was eager loaded with this instance (parent), and you change something in the child, calling save()
will simply ignore the change that happened on the child.
Optional
options: SaveOptions<TModelAttributes>Optional
Set is used to update values on the instance (the sequelize representation of the instance that is,
remember that nothing will be persisted before you actually call save
). In its most basic form set
will update a value stored in the underlying dataValues
object. However, if a custom setter function
is defined for the key, that function will be called instead. To bypass the setter, you can pass raw: true
in the options object.
If set is called with an object, it will loop over the object, and call set recursively for each key, value pair. If you set raw to true, the underlying dataValues will either be set directly to the object passed, or used to extend dataValues, if dataValues already contain values.
When set is called, the previous value of the field is stored and sets a changed flag(see changed
).
Set can also be used to build instances for associations, if you have values for those. When using set with associations you need to make sure the property key matches the alias of the association while also making sure that the proper include options have been set (from .build() or .findOne())
If called with a dot.seperated key on a JSON/JSONB attribute it will set the value nested and flag the entire object as changed.
Optional
options: SetOptionsOptional
Optional
options: SetOptionsOptional
Optional
options: SetOptionsOptional
Optional
options: SetOptionsOptional
This is the same as calling set
and then calling save
.
Optional
options: InstanceUpdateOptions<TModelAttributes>Optional
Optional
options: InstanceUpdateOptions<TModelAttributes>Optional
Validate the attribute of this instance according to validation rules set in the model definition.
Emits null if and only if validation successful; otherwise an Error instance containing { field name : [error msgs] } entries.
Optional
options: ValidationOptionsOptional
Static
addAdd a hook to the model
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.
Static
addAdd a new scope to the model
This is especially useful for adding scopes with includes, when the model you want to
include is not available at the time this model is defined. By default this will throw an
error if a scope with that name already exists. Pass override: true
in the options
object to silence this error.
Optional
options: AddScopeOptionsOptional
Rest
...args: readonly any[]Rest
Optional
options: AddScopeOptionsOptional
Static
afterA hook that is run after creating instances in bulk
A callback function that is called with instances, options
Static
afterA hook that is run after destroying instances in bulk
A callback function that is called with options
Static
afterA hook that is run after sequelize.sync call
A callback function that is called with options passed to sequelize.sync
Static
afterA hook that is run after updating instances in bulk
A callback function that is called with options
Static
afterA hook that is run after creating a single instance
A callback function that is called with attributes, options
Static
afterA hook that is run after destroying a single instance
A callback function that is called with instance, options
Static
afterA hook that is run after a find (select) query
A callback function that is called with instance(s), options
Static
afterA hook that is run after creating or updating a single instance, It proxies afterCreate
and afterUpdate
A callback function that is called with instance, options
Static
afterA hook that is run after Model.sync call
A callback function that is called with options passed to Model.sync
Static
afterA hook that is run after updating a single instance
A callback function that is called with instance, options
Static
afterA hook that is run after validation
A callback function that is called with instance, options
Static
aggregateRun an aggregation method on the specified field
The field to aggregate over. Can be a field name or *
The function to use for aggregation, e.g. sum, max etc.
Optional
options: AggregateOptions<T, Attributes<M>>Query options. See sequelize.query for full options
Optional
Returns the aggregate result cast to options.dataType
, unless options.plain
is false, in
which case the complete data result is returned.
Static
beforeA hook that is run before creating instances in bulk
A callback function that is called with instances, options
Static
beforeA hook that is run before destroying instances in bulk
A callback function that is called with options
Static
beforeA hook that is run before sequelize.sync call
A callback function that is called with options passed to sequelize.sync
Static
beforeA hook that is run after updating instances in bulk
A callback function that is called with options
Static
beforeA hook that is run before a count query
A callback function that is called with options
Static
beforeA hook that is run before creating a single instance
A callback function that is called with attributes, options
Static
beforeA hook that is run before destroying a single instance
A callback function that is called with instance, options
Static
beforeA hook that is run before a find (select) query
A callback function that is called with options
Static
beforeA hook that is run before a find (select) query, after any { include: {all: ...} } options are expanded
A callback function that is called with options
Static
beforeA hook that is run before a find (select) query, after all option parsing is complete
A callback function that is called with options
Static
beforeA hook that is run before creating or updating a single instance, It proxies beforeCreate
and beforeUpdate
A callback function that is called with instance, options
Static
beforeA hook that is run before Model.sync call
A callback function that is called with options passed to Model.sync
Static
beforeA hook that is run before updating a single instance
A callback function that is called with instance, options
Static
beforeA hook that is run before validation
A callback function that is called with instance, options
Static
belongsCreates an association between this (the source) and the provided target. The foreign key is added on the source.
Example: Profile.belongsTo(User)
. This will add userId to the profile table.
The model that will be associated with hasOne relationship
Optional
options: BelongsToOptionsOptions for the association
Optional
Static
belongsCreate an N:M association with a join table
User.belongsToMany(Project)
Project.belongsToMany(User)
By default, the name of the join table will be source+target, so in this case projectsusers. This can be
overridden by providing either a string or a Model as through
in the options.
If you use a through model with custom attributes, these attributes can be set when adding / setting new associations in two ways. Consider users and projects from before with a join table that stores whether the project has been started yet:
class UserProjects extends Model {}
UserProjects.init({
started: Sequelize.BOOLEAN
}, { sequelize });
User.belongsToMany(Project, { through: UserProjects })
Project.belongsToMany(User, { through: UserProjects })
jan.addProject(homework, { started: false }) // The homework project is not started yet
jan.setProjects([makedinner, doshopping], { started: true}) // Both shopping and dinner has been started
If you want to set several target instances, but with different attributes you have to set the attributes on the instance, using a property with the name of the through model:
p1.userprojects {
started: true
}
user.setProjects([p1, p2], {started: false}) // The default value is false, but p1 overrides that.
Similarily, when fetching through a join table with custom attributes, these attributes will be available as an object with the name of the through model.
user.getProjects().then(projects => {
const p1 = projects[0]
p1.userprojects.started // Is this project started yet?
})
The model that will be associated with hasOne relationship
Options for the association
Static
buildBuilds a new model instance. Values is an object of key value pairs, must be defined but can be empty.
Optional
record: MakeNullishOptional<M["_creationAttributes"]>Optional
Optional
options: BuildOptionsOptional
Static
bulkStatic
bulkCreate and insert multiple instances in bulk.
The success handler is passed an array of instances, but please notice that these may not completely represent the state of the rows in the DB. This is because MySQL and SQLite do not make it easy to obtain back automatically generated IDs and other default values in a way that can be mapped to multiple records. To obtain Instances for the newly created values, you will need to query for them again.
List of objects (key/value pairs) to create instances from
Optional
options: BulkCreateOptions<Attributes<M>>Optional
Static
countCount number of records if group by is used
Optional
attributes?: FindAttributeOptionsA list of the attributes that you want to select. To rename an attribute, you can pass an array, with
two elements - the first is the name of the attribute in the DB (or some kind of expression such as
Sequelize.literal
, Sequelize.fn
and so on), and the second is the name you want the attribute to
have in the returned instance
Optional
benchmark?: booleanPass query execution time in milliseconds as second argument to logging function (options.logging).
Optional
col?: stringThe column to aggregate on.
Optional
distinct?: booleanApply COUNT(DISTINCT(col))
GROUP BY in sql
Used in conjunction with attributes
.
Projectable
Optional
include?: Includeable | Includeable[]Include options. See find
for details
Optional
logging?: boolean | ((sql, timing?) => void)A function that gets executed while running the query to log the sql.
Optional
paranoid?: booleanIf true, only non-deleted records will be returned. If false, both deleted and non-deleted records will
be returned. Only applies if options.paranoid
is true for the model.
Optional
transaction?: TransactionTransaction to run query under
Optional
useForce the query to use the write pool, regardless of the query type.
false
Optional
where?: WhereOptions<Attributes<M>>Attribute has to be matched for rows to be selected for the given action.
Returns count for each group and the projected attributes.
Count the number of records matching the provided where clause.
If you provide an include
option, the number of matching associations will be counted instead.
Optional
options: Omit<CountOptions<Attributes<M>>, "group">Optional
Returns count for each group and the projected attributes.
Static
createBuilds a new model instance and calls save on it.
Optional
values: MakeNullishOptional<M["_creationAttributes"]>Optional
Optional
options: OOptional
Static
decrementDecrements the value of one or more attributes.
Works like Model.increment
If a string is provided, that column is incremented by the
value of by
given in options. If an array is provided, the same is true for each column.
If an object is provided, each key is incremented by the corresponding value, by
is ignored.
an array of affected rows or with affected count if options.returning
is true, whenever supported by dialect
4.36.0
Static
describeStatic
destroyDelete multiple instances, or set their deletedAt timestamp to the current time if paranoid
is enabled.
Optional
options: DestroyOptions<Attributes<M>>Optional
Promise
Static
dropStatic
findSearch for multiple instances.
Simple search using AND and =
Model.findAll({
where: {
attr1: 42,
attr2: 'cake'
}
})
WHERE attr1 = 42 AND attr2 = 'cake'
Using greater than, less than etc.
Model.findAll({
where: {
attr1: {
gt: 50
},
attr2: {
lte: 45
},
attr3: {
in: [1,2,3]
},
attr4: {
ne: 5
}
}
})
WHERE attr1 > 50 AND attr2 <= 45 AND attr3 IN (1,2,3) AND attr4 != 5
Possible options are: [Op.ne], [Op.in], [Op.not], [Op.notIn], [Op.gte], [Op.gt], [Op.lte], [Op.lt], [Op.like], [Op.ilike]/[Op.iLike], [Op.notLike], [Op.notILike], '..'/[Op.between], '!..'/[Op.notBetween], '&&'/[Op.overlap], '@>'/[Op.contains], '<@'/[Op.contained]
Queries using OR
Model.findAll({
where: Sequelize.and(
{ name: 'a project' },
Sequelize.or(
{ id: [1,2,3] },
{ id: { gt: 10 } }
)
)
})
WHERE name = 'a project' AND (id` IN (1,2,3) OR id > 10)
The success listener is called with an array of instances if the query succeeds.
Optional
options: FindOptions<Attributes<M>>Optional
Static
findFind all the rows matching your query, within a specified offset / limit, and get the total number of rows matching your query. This is very useful for paging
Model.findAndCountAll({
where: ...,
limit: 12,
offset: 12
}).then(result => {
...
})
In the above example, result.rows
will contain rows 13 through 24, while result.count
will return
the
total number of rows that matched your query.
When you add includes, only those which are required (either because they have a where clause, or
because
required
is explicitly set to true on the include) will be added to the count part.
Suppose you want to find all users who have a profile attached:
User.findAndCountAll({
include: [
{ model: Profile, required: true}
],
limit: 3
});
Because the include for Profile
has required
set it will result in an inner join, and only the users
who have a profile will be counted. If we remove required
from the include, both users with and
without
profiles will be counted
This function also support grouping, when group
is provided, the count will be an array of objects
containing the count for each group and the projected attributes.
User.findAndCountAll({
group: 'type'
});
Optional
options: Omit<FindAndCountOptions<Attributes<M>>, "group">Optional
Optional
attributes?: FindAttributeOptionsA list of the attributes that you want to select. To rename an attribute, you can pass an array, with
two elements - the first is the name of the attribute in the DB (or some kind of expression such as
Sequelize.literal
, Sequelize.fn
and so on), and the second is the name you want the attribute to
have in the returned instance
Optional
benchmark?: booleanPass query execution time in milliseconds as second argument to logging function (options.logging).
Optional
bind?: BindOrReplacementsEither an object of named parameter bindings in the format $param
or an array of unnamed
values to bind to $1
, $2
, etc in your SQL.
Optional
col?: stringThe column to aggregate on.
Optional
distinct?: booleanApply COUNT(DISTINCT(col))
Optional
fieldMap returned fields to arbitrary names for SELECT query type if options.fieldMaps
is present.
GROUP BY in sql
Used in conjunction with attributes
.
Projectable
Optional
groupedOptional
having?: WhereOptions<any>Select group rows after groups and aggregates are computed.
Optional
include?: Includeable | Includeable[]Include options. See find
for details
Optional
indexMySQL only.
Optional
instance?: Model<any, any>A sequelize instance used to build the return instance
Optional
limit?: numberLimits how many items will be retrieved by the operation.
If limit
and include
are used together, Sequelize will turn the subQuery
option on by default.
This is done to ensure that limit
only impacts the Model on the same level as the limit
option.
You can disable this behavior by explicitly setting subQuery: false
, however limit
will then
affect the total count of returned values, including eager-loaded associations, instead of just one table.
// in the following query, `limit` only affects the "User" model.
// This will return 2 users, each including all of their projects.
User.findAll({
limit: 2,
include: [User.associations.projects],
});
// in the following query, `limit` affects the total number of returned values, eager-loaded associations included.
// This may return 2 users, each with one project,
// or 1 user with 2 projects.
User.findAll({
limit: 2,
include: [User.associations.projects],
subQuery: false,
});
Optional
lock?: boolean | LOCK | { Lock the selected rows. Possible options are transaction.LOCK.UPDATE and transaction.LOCK.SHARE. Postgres also supports transaction.LOCK.KEY_SHARE, transaction.LOCK.NO_KEY_UPDATE and specific model locks with joins. See transaction.LOCK for an example
Optional
logging?: boolean | ((sql, timing?) => void)A function that gets executed while running the query to log the sql.
Optional
mapMap returned fields to model's fields if options.model
or options.instance
is present.
Mapping will occur before building the model instance.
Optional
nest?: booleanIf true, transforms objects with .
separated property names into nested objects using
dottie.js. For example { 'user.username': 'john' } becomes
{ user: { username: 'john' }}. When nest
is true, the query type is assumed to be 'SELECT'
,
unless otherwise specified
false
Optional
offset?: numberSkip the results;
Optional
order?: OrderSpecifies an ordering. If a string is provided, it will be escaped. Using an array, you can provide
several columns / functions to order by. Each element can be further wrapped in a two-element array. The
first element is the column / function to order by, the second is the direction. For example:
order: [['name', 'DESC']]
. In this way the column will be escaped, but the direction will not.
Optional
paranoid?: booleanIf true, only non-deleted records will be returned. If false, both deleted and non-deleted records will
be returned. Only applies if options.paranoid
is true for the model.
Optional
plain?: booleanSets the query type to SELECT
and return a single row
Optional
raw?: booleanReturn raw result. See sequelize.query for more information.
Optional
replacements?: BindOrReplacementsEither an object of named parameter replacements in the format :param
or an array of unnamed
replacements to replace ?
in your SQL.
Optional
retry?: OptionsOptional
skipSkip locked rows. Only supported in Postgres.
Optional
subUse sub queries (internal).
If unspecified, this will true
by default if limit
is specified, and false
otherwise.
See FindOptions#limit for more information.
Optional
transaction?: TransactionTransaction to run query under
Optional
type?: stringThe type of query you are executing. The query type affects how results are formatted before they are
passed back. The type is a string, but Sequelize.QueryTypes
is provided as convenience shortcuts.
Optional
useForce the query to use the write pool, regardless of the query type.
false
Optional
where?: WhereOptions<Attributes<M>>Attribute has to be matched for rows to be selected for the given action.
Static
findSearch for a single instance by its primary key. This applies LIMIT 1, so the listener will always be called with a single instance.
Optional
identifier: IdentifierOptional
Optional
options: Omit<FindOptions<Attributes<M>>, "where">Optional
Static
findA more performant findOrCreate that will not work under a transaction (at least not in postgres) Will execute a find call, if empty then attempt to create, if unique constraint then attempt to find again
Static
findSearch for a single instance. Returns the first instance found, or null if none can be found.
Optional
options: FindOptions<Attributes<M>>Optional
Static
findFind a row that matches the query, or build (but don't save) the row if none is found.
The successful result of the promise will be (instance, initialized) - Make sure to use .then(([...]))
Static
findFind a row that matches the query, or build and save the row if none is found
The successful result of the promise will be (instance, created) - Make sure to use .then(([...]))
If no transaction is passed in the options
object, a new transaction will be created internally, to
prevent the race condition where a matching row is created by another connection after the find but
before the insert call. However, it is not always possible to handle this case in SQLite, specifically
if one transaction inserts and another tries to select before the first one has comitted. In this case,
an instance of sequelize.TimeoutError will be thrown instead. If a transaction is created, a savepoint
will be created instead, and any unique constraint violation will be handled internally.
Static
getReturns the attributes of the model
Static
getGet the tablename of the model, taking schema into account. The method will return The name as a string
if the model has no schema, or an object with tableName
, schema
and delimiter
properties.
Static
hasStatic
hasStatic
hasCreate an association that is either 1:m or n:m.
// Create a 1:m association between user and project
User.hasMany(Project)
// Create a n:m association between user and project
User.hasMany(Project)
Project.hasMany(User)
By default, the name of the join table will be source+target, so in this case projectsusers. This can be
overridden by providing either a string or a Model as through
in the options. If you use a through
model with custom attributes, these attributes can be set when adding / setting new associations in two
ways. Consider users and projects from before with a join table that stores whether the project has been
started yet:
class UserProjects extends Model {}
UserProjects.init({
started: Sequelize.BOOLEAN
}, { sequelize })
User.hasMany(Project, { through: UserProjects })
Project.hasMany(User, { through: UserProjects })
jan.addProject(homework, { started: false }) // The homework project is not started yet
jan.setProjects([makedinner, doshopping], { started: true}) // Both shopping and dinner have been
started
If you want to set several target instances, but with different attributes you have to set the attributes on the instance, using a property with the name of the through model:
p1.userprojects {
started: true
}
user.setProjects([p1, p2], {started: false}) // The default value is false, but p1 overrides that.
Similarily, when fetching through a join table with custom attributes, these attributes will be available as an object with the name of the through model.
user.getProjects().then(projects => {
const p1 = projects[0]
p1.userprojects.started // Is this project started yet?
})
The model that will be associated with hasOne relationship
Optional
options: HasManyOptionsOptions for the association
Optional
Static
hasCreates an association between this (the source) and the provided target. The foreign key is added on the target.
Example: User.hasOne(Profile)
. This will add userId to the profile table.
The model that will be associated with hasOne relationship
Optional
options: HasOneOptionsOptions for the association
Optional
Static
incrementIncrements the value of one or more attributes.
The increment is done using a SET column = column + X WHERE foo = 'bar'
query.
If a string is provided, that column is incremented by the
value of by
given in options. If an array is provided, the same is true for each column.
If an object is provided, each key is incremented by the corresponding value, by
is ignored.
an array of affected rows or with affected count if options.returning
is true, whenever supported by dialect
Static
initInitialize a model, representing a table in the DB, with attributes and options.
The table columns are define by the hash that is given as the second argument. Each attribute of the hash represents a column. A short table definition might look like this:
Project.init({
columnA: {
type: Sequelize.BOOLEAN,
validate: {
is: ['[a-z]','i'], // will only allow letters
max: 23, // only allow values <= 23
isIn: {
args: [['en', 'zh']],
msg: "Must be English or Chinese"
}
},
field: 'column_a'
// Other attributes here
},
columnB: Sequelize.STRING,
columnC: 'MY VERY OWN COLUMN TYPE'
}, {sequelize})
sequelize.models.modelName // The model will now be available in models under the class name
As shown above, column definitions can be either strings, a reference to one of the datatypes that are predefined on the Sequelize constructor, or an object that allows you to specify both the type of the column, and other attributes such as default values, foreign key constraints and custom setters and getters.
For a list of possible data types, see https://sequelize.org/master/en/latest/docs/models-definition/#data-types
For more about getters and setters, see https://sequelize.org/master/en/latest/docs/models-definition/#getters-setters
For more about instance and class methods, see https://sequelize.org/master/en/latest/docs/models-definition/#expansion-of-models
For more about validation, see https://sequelize.org/master/en/latest/docs/models-definition/#validations
An object, where each attribute is a column of the table. Each column can be either a DataType, a string or a type-description object, with the properties described below:
These options are merged with the default define options provided to the Sequelize constructor
Return the initialized model
Static
initializeStatic
maxStatic
minStatic
removeStatic
removeStatic
restoreStatic
schemaApply a schema to this model. For postgres, this will actually place the schema in front of the table name
"schema"."tableName"
, while the schema will be prepended to the table name for mysql and
sqlite - 'schema.tablename'
.The name of the schema
Optional
options: SchemaOptionsOptional
Static
scopeApply a scope created in define
to the model. First let's look at how to create scopes:
class MyModel extends Model {}
MyModel.init(attributes, {
defaultScope: {
where: {
username: 'dan'
},
limit: 12
},
scopes: {
isALie: {
where: {
stuff: 'cake'
}
},
complexFunction(email, accessLevel) {
return {
where: {
email: {
[Op.like]: email
},
accesss_level {
[Op.gte]: accessLevel
}
}
}
}
},
sequelize,
})
Now, since you defined a default scope, every time you do Model.find, the default scope is appended to your query. Here's a couple of examples:
Model.findAll() // WHERE username = 'dan'
Model.findAll({ where: { age: { gt: 12 } } }) // WHERE age > 12 AND username = 'dan'
To invoke scope functions you can do:
Model.scope({ method: ['complexFunction' 'dan@sequelize.com', 42]}).findAll()
// WHERE email like 'dan@sequelize.com%' AND access_level >= 42
Optional
options: string | ScopeOptions | readonly (string | ScopeOptions)[] | WhereAttributeHash<M>Optional
Model A reference to the model, with the scope(s) applied. Calling scope again on the returned model will clear the previous scope.
Static
sumStatic
syncStatic
truncateTruncate all instances of the model. This is a convenient method for Model.destroy({ truncate: true }).
Optional
options: TruncateOptions<Attributes<M>>Optional
Static
unscopedStatic
updateUpdate multiple instances that match the where options. The promise returns an array with one or two
elements. The first element is always the number of affected rows, while the second element is the actual
affected rows (only supported in postgres and mssql with options.returning
true.)
Update multiple instances that match the where options. The promise returns an array with one or two
elements. The first element is always the number of affected rows, while the second element is the actual
affected rows (only supported in postgres and mssql with options.returning
true.)
Static
upsertInsert or update a single row. An update will be executed if a row which matches the supplied values on either the primary key or a unique key is found. Note that the unique index must be defined in your sequelize model and not just in the table. Otherwise you may experience a unique constraint violation, because sequelize fails to identify the row that should be updated.
Implementation details:
INSERT values ON DUPLICATE KEY UPDATE values
INSERT; UPDATE
. This means that the update is executed
regardless
of whether the row already existed or notNote that SQLite returns null for created, no matter if the row was created or updated. This is because SQLite always runs INSERT OR IGNORE + UPDATE, in a single query, so there is no way to know whether the row was inserted or not.
Optional
options: UpsertOptions<Attributes<M>>Optional
Generated using TypeDoc
A dummy variable that doesn't exist on the real object. This exists so Typescript can infer the type of the attributes in static functions. Don't try to access this!
Before using these, I'd tried typing out the functions without them, but Typescript fails to infer
TAttributes
in signatures like the below.