BelongsTo
class BelongsTo extends Relation (View source)
Traits
Properties
| static protected array | $macros | The registered string macros. |
from Macroable |
| protected Builder | $query | The Eloquent query builder instance. |
from Relation |
| protected Model | $parent | The parent model instance. |
from Relation |
| protected Model | $related | The related model instance. |
from Relation |
| protected bool | $eagerKeysWereEmpty | Indicates whether the eagerly loaded relation should implicitly return an empty collection. |
from Relation |
| static protected bool | $constraints | Indicates if the relation is adding constraints. |
from Relation |
| static array | $morphMap | An array to map class names to their morph names in the database. |
from Relation |
| static protected bool | $requireMorphMap | Prevents morph relationships without a morph map. |
from Relation |
| static protected int | $selfJoinCount | The count of self joins. |
from Relation |
| protected Closure|array|bool | $withDefault | Indicates if a default model instance should be used. |
from SupportsDefaultModels |
| protected Model | $child | The child model instance of the relation. |
|
| protected string | $foreignKey | The foreign key of the parent model. |
|
| protected string | $ownerKey | The associated key on the parent model. |
|
| protected string | $relationName | The name of the relationship. |
Methods
Forward a method call to the given object.
Forward a method call to the given object, returning $this if the forwarded call returned itself.
Throw a bad method call exception for the given method.
Mix another object into the class.
Dynamically handle calls to the class.
Dynamically handle calls to the class.
Create a new belongs to relationship instance.
Set the base constraints on the relation query.
Set the constraints for an eager load of the relation.
Initialize the relation on a set of models.
Match the eagerly loaded results to their parents.
Get the results of the relationship.
Execute the query and get the first result if it's the sole matching record.
Add the constraints for a relationship count query.
Add the constraints for a relationship query.
Get a relationship join table hash.
Get all of the primary keys for an array of models.
Get the query builder that will contain the relationship constraints.
Add a whereIn eager constraint for the given set of model keys to be loaded.
Prevent polymorphic relationships from being used without model mappings.
Determine if polymorphic relationships require explicit model mapping.
Define the morph map for polymorphic relations and require all morphed models to be explicitly mapped.
Set or get the morph map for polymorphic relations.
Builds a table-keyed array from model class names.
Get the model associated with a custom polymorphic type.
Get the key value of the child's foreign key.
Compare the parent key with the related key.
Get a dictionary key attribute - casting it to a string if necessary.
Return a new model instance in case the relationship does not exist.
Gather the keys from an array of related models.
Dissociate previously associated model from the given parent.
Alias of "dissociate" method.
Add the constraints for a relationship query on the same table.
Determine if the related model has an auto-incrementing ID.
Get the foreign key of the relationship.
Get the fully qualified foreign key of the relationship.
Get the associated key of the relationship.
Get the fully qualified associated key of the relationship.
Get the name of the relationship.
Details
protected mixed
forwardCallTo(mixed $object, string $method, array $parameters)
Forward a method call to the given object.
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.
static protected void
throwBadMethodCallException(string $method)
Throw a bad method call exception for the given method.
static void
macro(string $name, object|callable $macro)
Register a custom macro.
static void
mixin(object $mixin, bool $replace = true)
Mix another object into the class.
static bool
hasMacro(string $name)
Checks 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)
Dynamically handle calls to the class.
void
__construct(Builder $query, Model $child, string $foreignKey, string $ownerKey, string $relationName)
Create a new belongs to relationship instance.
static mixed
noConstraints(Closure $callback)
Run a callback with constraints disabled on the relation.
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.
mixed
getResults()
Get the results of the relationship.
Collection
getEager()
Get the relationship for eager loading.
Model
sole(array|string $columns = ['*'])
Execute the query and get the first result if it's the sole matching record.
Collection
get(array $columns = ['*'])
Execute the query as a "select" statement.
void
touch()
Touch all of the related models for the relationship.
int
rawUpdate(array $attributes = [])
Run a raw update against the base query.
Builder
getRelationExistenceCountQuery(Builder $query, Builder $parentQuery)
Add the constraints for a relationship count query.
Builder
getRelationExistenceQuery(Builder $query, Builder $parentQuery, array|mixed $columns = ['*'])
Add the constraints for a relationship query.
string
getRelationCountHash(bool $incrementJoinCount = true)
Get a relationship join table hash.
protected array
getKeys(array $models, string|null $key = null)
Get all of the primary keys for an array of models.
protected Builder
getRelationQuery()
Get the query builder that will contain the relationship constraints.
Builder
getQuery()
Get the underlying query for the relation.
Builder
getBaseQuery()
Get the base query builder driving the Eloquent builder.
Builder
toBase()
Get a base query builder instance.
Model
getParent()
Get the parent model of the relation.
string
getQualifiedParentKeyName()
Get the fully qualified parent key name.
Model
getRelated()
Get the related model of the relation.
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.
protected void
whereInEager(string $whereIn, string $key, array $modelKeys, Builder $query = null)
Add a whereIn eager constraint for the given set of model keys to be loaded.
protected 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 protected array|null
buildMorphMapFromModels(array|null $models = null)
Builds a table-keyed array from model class names.
static string|null
getMorphedModel(string $alias)
Get the model associated with a custom polymorphic type.
void
__clone()
Force a clone of the underlying query builder when cloning.
bool
is(Model|null $model)
Determine if the model is the related instance of the relationship.
bool
isNot(Model|null $model)
Determine if the model is not the related instance of the relationship.
mixed
getParentKey()
Get the key value of the child's foreign key.
protected mixed
getRelatedKeyFrom(Model $model)
Get the value of the model's associated key.
protected bool
compareKeys(mixed $parentKey, mixed $relatedKey)
Compare the parent key with the related key.
protected mixed
getDictionaryKey(mixed $attribute)
Get a dictionary key attribute - casting it to a string if necessary.
protected Model
newRelatedInstanceFor(Model $parent)
Make a new related instance for the given model.
$this
withDefault(Closure|array|bool $callback = true)
Return a new model instance in case the relationship does not exist.
protected array
getEagerModelKeys(array $models)
Gather the keys from an array of related models.
Model
dissociate()
Dissociate previously associated model from the given parent.
Model
disassociate()
Alias of "dissociate" method.
Builder
getRelationExistenceQueryForSelfRelation(Builder $query, Builder $parentQuery, array|mixed $columns = ['*'])
Add the constraints for a relationship query on the same table.
protected bool
relationHasIncrementingId()
Determine if the related model has an auto-incrementing ID.
Model
getChild()
Get the child of the relationship.
string
getForeignKeyName()
Get the foreign key of the relationship.
string
getQualifiedForeignKeyName()
Get the fully qualified foreign key of the relationship.
string
getOwnerKeyName()
Get the associated key of the relationship.
string
getQualifiedOwnerKeyName()
Get the fully qualified associated key of the relationship.
protected mixed
getForeignKeyFrom(Model $model)
Get the value of the model's foreign key.
string
getRelationName()
Get the name of the relationship.