HasOne
class HasOne extends HasOneOrMany implements SupportsPartialRelations (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 |
| 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 string | $foreignKey | The foreign key of the parent model. |
from HasOneOrMany |
| protected string | $localKey | The local key of the parent model. |
from HasOneOrMany |
| protected bool | $isOneOfMany | Determines whether the relationship is one-of-many. |
from CanBeOneOfMany |
| protected string | $relationName | The name of the relationship. |
from CanBeOneOfMany |
| protected Builder|null | $oneOfManySubQuery | The one of many inner join subselect query builder instance. |
from CanBeOneOfMany |
| protected Closure|array|bool | $withDefault | Indicates if a default model instance should be used. |
from SupportsDefaultModels |
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 has one or many relationship instance.
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 an internal relationship existence 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.
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 a dictionary key attribute - casting it to a string if necessary.
Create and return an un-saved instance of the related model.
Create and return an un-saved instance of the related models.
Match the eagerly loaded results to their single parents.
Match the eagerly loaded results to their many parents.
Match the eagerly loaded results to their many parents.
Get the value of a relationship by one or many type.
Find a model by its primary key or return a new instance of the related model.
Get the first related model record matching the attributes or instantiate it.
Get the first related record matching the attributes or create it.
Create or update a related record matching the attributes, and fill it with values.
Attach a collection of models to the parent instance.
Create a new instance of the related model. Allow mass-assignment.
Create a Collection of new instances of the related model.
Add the constraints for a relationship query on the same table.
Get the key for comparing against the parent key in "has" query.
Compare the parent key with the related key.
Add constraints for inner join subselect for one of many relationships.
Get the columns that should be selected by the one of many subquery.
Add join query constraints for one of many relationships.
Indicate that the relation is a single result of a larger one-to-many relationship.
Indicate that the relation is the latest single result of a larger one-to-many relationship.
Indicate that the relation is the oldest single result of a larger one-to-many relationship.
Get the default alias for the one of many inner join clause.
Get a new query for the related model, grouping the query by the given column, often the foreign key of the relationship.
Add the join subquery to the given query on the given column and the relationship's foreign key.
Merge the relationship query joins to the given query builder.
Get the one of many inner join subselect builder instance.
Get the qualified column name for the one-of-many relationship using the subselect join query's alias.
Qualify related column using the related table name if it is not already qualified.
Guess the "hasOne" relationship's name via backtrace.
Determine whether the relationship is a one-of-many relationship.
Return a new model instance in case the relationship does not exist.
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 $parent, string $foreignKey, string $localKey)
Create a new has one or many 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 an internal relationship existence query.
Essentially, these queries compare on column names like "whereColumn".
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.
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 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 $map = null, bool $merge = true)
Set or get the morph map for polymorphic relations.
static protected array|null
buildMorphMapFromModels(array $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.
protected mixed
getDictionaryKey(mixed $attribute)
Get a dictionary key attribute - casting it to a string if necessary.
Model
make(array $attributes = [])
Create and return an un-saved instance of the related model.
Collection
makeMany(iterable $records)
Create and return an un-saved instance of the related models.
array
matchOne(array $models, Collection $results, string $relation)
Match the eagerly loaded results to their single parents.
array
matchMany(array $models, Collection $results, string $relation)
Match the eagerly loaded results to their many parents.
protected array
matchOneOrMany(array $models, Collection $results, string $relation, string $type)
Match the eagerly loaded results to their many parents.
protected mixed
getRelationValue(array $dictionary, string $key, string $type)
Get the value of a relationship by one or many type.
protected array
buildDictionary(Collection $results)
Build model dictionary keyed by the relation's foreign key.
Collection|Model
findOrNew(mixed $id, array $columns = ['*'])
Find a model by its primary key or return a new instance of the related model.
Model
firstOrNew(array $attributes = [], array $values = [])
Get the first related model record matching the attributes or instantiate it.
Model
firstOrCreate(array $attributes = [], array $values = [])
Get the first related record matching the attributes or create it.
Model
updateOrCreate(array $attributes, array $values = [])
Create or update a related record matching the attributes, and fill it with values.
iterable
saveMany(iterable $models)
Attach a collection of models to the parent instance.
Model
create(array $attributes = [])
Create a new instance of the related model.
Model
forceCreate(array $attributes = [])
Create a new instance of the related model. Allow mass-assignment.
Collection
createMany(iterable $records)
Create a Collection of new instances of the related model.
protected void
setForeignAttributesForCreate(Model $model)
Set the foreign ID for creating a related model.
Builder
getRelationExistenceQueryForSelfRelation(Builder $query, Builder $parentQuery, array|mixed $columns = ['*'])
Add the constraints for a relationship query on the same table.
string
getExistenceCompareKey()
Get the key for comparing against the parent key in "has" query.
abstract mixed
getParentKey()
Get the value of the parent model's key.
string
getForeignKeyName()
Get the plain foreign key.
string
getQualifiedForeignKeyName()
Get the foreign key for the relationship.
string
getLocalKeyName()
Get the local key for the relationship.
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.
protected mixed
getRelatedKeyFrom(Model $model)
Get the value of the model's foreign key.
protected bool
compareKeys(mixed $parentKey, mixed $relatedKey)
Compare the parent key with the related key.
void
addOneOfManySubQueryConstraints(Builder $query, string|null $column = null, string|null $aggregate = null)
Add constraints for inner join subselect for one of many relationships.
array|string
getOneOfManySubQuerySelectColumns()
Get the columns that should be selected by the one of many subquery.
void
addOneOfManyJoinSubQueryConstraints(JoinClause $join)
Add join query constraints for one of many relationships.
$this
ofMany(string|array|null $column = 'id', string|Closure|null $aggregate = 'MAX', string|null $relation = null)
Indicate that the relation is a single result of a larger one-to-many relationship.
$this
latestOfMany(string|array|null $column = 'id', string|null $relation = null)
Indicate that the relation is the latest single result of a larger one-to-many relationship.
$this
oldestOfMany(string|array|null $column = 'id', string|null $relation = null)
Indicate that the relation is the oldest single result of a larger one-to-many relationship.
protected string
getDefaultOneOfManyJoinAlias(string $relation)
Get the default alias for the one of many inner join clause.
protected Builder
newOneOfManySubQuery(string|array $groupBy, string|null $column = null, string|null $aggregate = null)
Get a new query for the related model, grouping the query by the given column, often the foreign key of the relationship.
protected void
addOneOfManyJoinSubQuery(Builder $parent, Builder $subQuery, string $on)
Add the join subquery to the given query on the given column and the relationship's foreign key.
protected void
mergeOneOfManyJoinsTo(Builder $query)
Merge the relationship query joins to the given query builder.
Builder|void
getOneOfManySubQuery()
Get the one of many inner join subselect builder instance.
string
qualifySubSelectColumn(string $column)
Get the qualified column name for the one-of-many relationship using the subselect join query's alias.
protected string
qualifyRelatedColumn(string $column)
Qualify related column using the related table name if it is not already qualified.
protected string
guessRelationship()
Guess the "hasOne" relationship's name via backtrace.
bool
isOneOfMany()
Determine whether the relationship is a one-of-many relationship.
string
getRelationName()
Get the name of the relationship.
$this
withDefault(Closure|array|bool $callback = true)
Return a new model instance in case the relationship does not exist.