abstract class Relation implements Builder mixin TRelatedModel>

Traits

Constants

protected CONSTRAINTS_CONTEXT_KEY

The context key for storing whether constraints are enabled.

protected NESTED_CONSTRAINTS_CONTEXT_KEY

The context key for enabling constraints on nested relation attributes.

Properties

static protected array $macros

The registered string macros.

from  Macroable
protected TRelatedModel> $query

The Eloquent query builder instance.

protected TDeclaringModel $parent

The parent model instance.

$related

The related model instance.

protected bool $eagerKeysWereEmpty

Indicates whether the eagerly loaded relation should implicitly return an empty collection.

static array<int|Model>> $morphMap

An array to map morph names to their class names in the database.

static protected bool $requireMorphMap

Prevents morph relationships without a morph map.

static protected int $selfJoinCount

The count of self joins.

Methods

mixed
forwardCallTo(mixed $object, string $method, array $parameters)

Forward a method call to the given object.

mixed
forwardDecoratedCallTo(mixed $object, string $method, array $parameters)

Forward a method call to the given object, returning $this if the forwarded call returned itself.

static never
throwBadMethodCallException(string $method)

Throw a bad method call exception for the given method.

static void
macro(string $name, callable|object $macro)

Register a custom macro.

static void
mixin(object $mixin, bool $replace = true)

Mix another object into the class.

static bool
hasMacro(string $name)

Check if macro is registered.

static void
flushMacros()

Flush the existing macros.

static mixed
__callStatic(string $method, array $parameters)

Dynamically handle calls to the class.

mixed
__call(string $method, array $parameters)

Handle dynamic method calls to the relationship.

__construct(Builder $query, Model $parent)

Create a new relation instance.

static mixed
noConstraints(Closure $callback)

Run a callback with constraints disabled on the relation.

static mixed
noConstraintsForRelation(Closure $callback)

Run a callback without constraints while preserving them for nested relation attributes.

static mixed
withoutConstraints(Closure $callback, bool $constraintsForNestedRelations)

Run a callback with the configured relation constraints.

static mixed
withConstraints(Closure $callback)

Run a callback with constraints enabled on the relation.

static mixed
withConstraintsForNestedRelation(Closure $callback)

Run a callback with constraints when resolving a nested relation attribute.

static bool
shouldAddConstraints()

Determine if constraints should be added to the relation query.

void
addConstraints()

Set the base constraints on the relation query.

void
addEagerConstraints(array $models)

Set the constraints for an eager load of the relation.

array
initRelation(array $models, string $relation)

Initialize the relation on a set of models.

array
match(array $models, Collection $results, string $relation)

Match the eagerly loaded results to their parents.

TResult
getResults()

Get the results of the relationship.

getEager()

Get the relationship for eager loading.

sole(array|string $columns = ['*'])

Execute the query and get the first result if it's the sole matching record.

get(array $columns = ['*'])

Execute the query as a "select" statement.

void
touch()

Touch all of the related models for the relationship.

void
updateRelatedKeys(Builder $query, string $column, Collection $keys, array $values)

Update related keys, splitting unbounded queries at the statement binding limit.

int
rawUpdate(array $attributes = [])

Run a raw update against the base query.

getRelationExistenceCountQuery(Builder $query, Builder $parentQuery)

Add the constraints for a relationship count query.

getRelationExistenceQuery(Builder $query, Builder $parentQuery, mixed $columns = ['*'])

Add the constraints for an internal relationship existence query.

string
getRelationCountHash(bool $incrementJoinCount = true)

Get a relationship join table hash.

array
getKeys(array $models, string|null $key = null)

Get all of the primary keys for an array of models.

getRelationQuery()

Get the query builder that will contain the relationship constraints.

getQuery()

Get the underlying query for the relation.

getBaseQuery()

Get the base query builder driving the Eloquent builder.

toBase()

Get a base query builder instance.

getParent()

Get the parent model of the relation.

string
getQualifiedParentKeyName()

Get the fully-qualified parent key name.

getRelated()

Get the related model of the relation.

withCasts(array $casts)

Apply query-time casts to the related model instance.

string
getRelatedClass()

Get the class name of the related model.

string
createdAt()

Get the name of the "created at" column.

string
updatedAt()

Get the name of the "updated at" column.

string
relatedUpdatedAt()

Get the name of the related model's "updated at" column.

void
whereInEager(string $whereIn, string $key, array $modelKeys, Builder|null $query = null)

Add a whereIn eager constraint for the given set of model keys to be loaded.

string
whereInMethod(Model $model, string $key)

Get the name of the "where in" method for eager loading.

static void
requireMorphMap(bool $requireMorphMap = true)

Prevent polymorphic relationships from being used without model mappings.

static bool
requiresMorphMap()

Determine if polymorphic relationships require explicit model mapping.

static array
enforceMorphMap(array $map, bool $merge = true)

Define the morph map for polymorphic relations and require all morphed models to be explicitly mapped.

static array
morphMap(array|null $map = null, bool $merge = true)

Set or get the morph map for polymorphic relations.

static array|null
buildMorphMapFromModels(array|null $models = null)

Build a table-keyed array from model class names.

static string|null
getMorphedModel(int|string|null $alias)

Get the model associated with a custom polymorphic type.

static int|string
getMorphAlias(string $className)

Get the alias associated with a custom polymorphic class.

clone()

Clone the relationship.

static void
flushState()

Flush all static state.

void
__clone()

Force a clone of the underlying query builder when cloning.

Details

in ForwardsCalls at line 22
protected mixed forwardCallTo(mixed $object, string $method, array $parameters)

Forward a method call to the given object.

Parameters

mixed $object
string $method
array $parameters

Return Value

mixed

Exceptions

BadMethodCallException

in ForwardsCalls at line 52
protected mixed forwardDecoratedCallTo(mixed $object, string $method, array $parameters)

Forward a method call to the given object, returning $this if the forwarded call returned itself.

Parameters

mixed $object
string $method
array $parameters

Return Value

mixed

Exceptions

BadMethodCallException

in ForwardsCalls at line 66
static protected never throwBadMethodCallException(string $method)

Throw a bad method call exception for the given method.

Parameters

string $method

Return Value

never

Exceptions

BadMethodCallException

in Macroable at line 30
static void macro(string $name, callable|object $macro)

Register a custom macro.

Macros persist in a static property for the worker lifetime and apply to every subsequent call on the macroable class.

Parameters

string $name
callable|object $macro

Return Value

void

in Macroable at line 44
static void mixin(object $mixin, bool $replace = true)

Mix another object into the class.

Delegates to macro() for each method; registered macros persist in a static property for the worker lifetime.

Parameters

object $mixin
bool $replace

Return Value

void

Exceptions

ReflectionException

in Macroable at line 61
static bool hasMacro(string $name)

Check if macro is registered.

Parameters

string $name

Return Value

bool

in Macroable at line 72
static void flushMacros()

Flush the existing macros.

Clears worker-wide macros; concurrent coroutines may resolve different methods depending on timing.

Return Value

void

in Macroable at line 83
static mixed __callStatic(string $method, array $parameters)

Dynamically handle calls to the class.

Parameters

string $method
array $parameters

Return Value

mixed

Exceptions

BadMethodCallException

at line 650
mixed __call(string $method, array $parameters)

Handle dynamic method calls to the relationship.

Parameters

string $method
array $parameters

Return Value

mixed

at line 95
__construct(Builder $query, Model $parent)

Create a new relation instance.

Parameters

Builder $query
Model $parent

at line 112
static mixed noConstraints(Closure $callback)

Run a callback with constraints disabled on the relation.

Parameters

Closure $callback

Return Value

mixed

at line 125
static mixed noConstraintsForRelation(Closure $callback)

Run a callback without constraints while preserving them for nested relation attributes.

Parameters

Closure $callback

Return Value

mixed

at line 138
static protected mixed withoutConstraints(Closure $callback, bool $constraintsForNestedRelations)

Run a callback with the configured relation constraints.

Parameters

Closure $callback
bool $constraintsForNestedRelations

Return Value

mixed

at line 165
static mixed withConstraints(Closure $callback)

Run a callback with constraints enabled on the relation.

Parameters

Closure $callback

Return Value

mixed

at line 186
static mixed withConstraintsForNestedRelation(Closure $callback)

Run a callback with constraints when resolving a nested relation attribute.

Parameters

Closure $callback

Return Value

mixed

at line 196
static bool shouldAddConstraints()

Determine if constraints should be added to the relation query.

Return Value

bool

at line 204
abstract void addConstraints()

Set the base constraints on the relation query.

Return Value

void

at line 211
abstract void addEagerConstraints(array $models)

Set the constraints for an eager load of the relation.

Parameters

array $models

Return Value

void

at line 219
abstract array initRelation(array $models, string $relation)

Initialize the relation on a set of models.

Parameters

array $models
string $relation

Return Value

array

at line 228
abstract array match(array $models, Collection $results, string $relation)

Match the eagerly loaded results to their parents.

Parameters

array $models
Collection $results
string $relation

Return Value

array

at line 235
abstract TResult getResults()

Get the results of the relationship.

Return Value

TResult

at line 242
Collection getEager()

Get the relationship for eager loading.

Return Value

Collection

at line 257
Model sole(array|string $columns = ['*'])

Execute the query and get the first result if it's the sole matching record.

Parameters

array|string $columns

Return Value

Model

Exceptions

TRelatedModel>
MultipleRecordsFoundException

at line 279
Collection get(array $columns = ['*'])

Execute the query as a "select" statement.

Parameters

array $columns

Return Value

Collection

at line 287
void touch()

Touch all of the related models for the relationship.

Return Value

void

at line 305
protected void updateRelatedKeys(Builder $query, string $column, Collection $keys, array $values)

Update related keys, splitting unbounded queries at the statement binding limit.

Parameters

Builder $query
string $column
Collection $keys
array $values

Return Value

void

at line 329
int rawUpdate(array $attributes = [])

Run a raw update against the base query.

Parameters

array $attributes

Return Value

int

at line 341
Builder getRelationExistenceCountQuery(Builder $query, Builder $parentQuery)

Add the constraints for a relationship count query.

Parameters

Builder $query
Builder $parentQuery

Return Value

Builder

at line 359
Builder getRelationExistenceQuery(Builder $query, Builder $parentQuery, mixed $columns = ['*'])

Add the constraints for an internal relationship existence query.

Essentially, these queries compare on column names like whereColumn.

Parameters

Builder $query
Builder $parentQuery
mixed $columns

Return Value

Builder

at line 371
string getRelationCountHash(bool $incrementJoinCount = true)

Get a relationship join table hash.

Parameters

bool $incrementJoinCount

Return Value

string

at line 382
protected array getKeys(array $models, string|null $key = null)

Get all of the primary keys for an array of models.

Parameters

array $models
string|null $key

Return Value

array

at line 394
protected Builder getRelationQuery()

Get the query builder that will contain the relationship constraints.

Return Value

Builder

at line 404
Builder getQuery()

Get the underlying query for the relation.

Return Value

Builder

at line 412
Builder getBaseQuery()

Get the base query builder driving the Eloquent builder.

Return Value

Builder

at line 420
Builder toBase()

Get a base query builder instance.

Return Value

Builder

at line 430
Model getParent()

Get the parent model of the relation.

Return Value

Model

at line 438
string getQualifiedParentKeyName()

Get the fully-qualified parent key name.

Return Value

string

at line 448
Model getRelated()

Get the related model of the relation.

Return Value

Model

at line 456
Relation withCasts(array $casts)

Apply query-time casts to the related model instance.

Parameters

array $casts

Return Value

Relation

at line 471
string getRelatedClass()

Get the class name of the related model.

Return Value

string

at line 479
string createdAt()

Get the name of the "created at" column.

Return Value

string

at line 487
string updatedAt()

Get the name of the "updated at" column.

Return Value

string

at line 495
string relatedUpdatedAt()

Get the name of the related model's "updated at" column.

Return Value

string

at line 505
protected void whereInEager(string $whereIn, string $key, array $modelKeys, Builder|null $query = null)

Add a whereIn eager constraint for the given set of model keys to be loaded.

Parameters

string $whereIn
string $key
array $modelKeys
Builder|null $query

Return Value

void

at line 517
protected string whereInMethod(Model $model, string $key)

Get the name of the "where in" method for eager loading.

Parameters

Model $model
string $key

Return Value

string

at line 531
static void requireMorphMap(bool $requireMorphMap = true)

Prevent polymorphic relationships from being used without model mappings.

The flag persists in a static property for the worker lifetime and applies to every polymorphic resolution across all coroutines.

Parameters

bool $requireMorphMap

Return Value

void

at line 540
static bool requiresMorphMap()

Determine if polymorphic relationships require explicit model mapping.

Return Value

bool

at line 554
static array enforceMorphMap(array $map, bool $merge = true)

Define the morph map for polymorphic relations and require all morphed models to be explicitly mapped.

Sets both worker-wide morph state (requireMorphMap + morphMap) shared by every coroutine.

Parameters

array $map
bool $merge

Return Value

array

at line 571
static array morphMap(array|null $map = null, bool $merge = true)

Set or get the morph map for polymorphic relations.

A given map persists in a static property for the worker lifetime and applies to every polymorphic resolution across all coroutines.

Parameters

array|null $map
bool $merge

Return Value

array

at line 591
static protected array|null buildMorphMapFromModels(array|null $models = null)

Build a table-keyed array from model class names.

Parameters

array|null $models

Return Value

array|null

at line 607
static string|null getMorphedModel(int|string|null $alias)

Get the model associated with a custom polymorphic type.

Parameters

int|string|null $alias

Return Value

string|null

at line 621
static int|string getMorphAlias(string $className)

Get the alias associated with a custom polymorphic class.

Parameters

string $className

Return Value

int|string

at line 631
Relation clone()

Clone the relationship.

Return Value

Relation

at line 639
static void flushState()

Flush all static state.

Return Value

void

at line 662
void __clone()

Force a clone of the underlying query builder when cloning.

Return Value

void