Class HasMany

Represents an N - 1 relationship where the target side of the relationship will have one or multiple records per each one in the source side.

An example of a HasMany association would be Author has many Articles.

Namespace: Cake\ORM\Association

Constants

string

MANY_TO_MANY ¶
```
'manyToMany'
```
Association type for many to many associations.
string

MANY_TO_ONE ¶
```
'manyToOne'
```
Association type for many to one associations.
string

ONE_TO_MANY ¶
```
'oneToMany'
```
Association type for one to many associations.
string

ONE_TO_ONE ¶
```
'oneToOne'
```
Association type for one to one associations.
string

SAVE_APPEND ¶
```
'append'
```
Saving strategy that will only append to the links set
string

SAVE_REPLACE ¶
```
'replace'
```
Saving strategy that will replace the links with the provided set
string

STRATEGY_JOIN ¶
```
'join'
```
Strategy name to use joins for fetching associated records
string

STRATEGY_SELECT ¶
```
'select'
```
Strategy name to use a select for fetching associated records
string

STRATEGY_SUBQUERY ¶
```
'subquery'
```
Strategy name to use a subquery for fetching associated records

Property Summary

$_bindingKey protected

string|array

The field name in the owning side table that is used to match with the foreignKey
$_cascadeCallbacks protected

bool

Whether or not cascaded deletes should also fire callbacks.
$_className protected

string

The class name of the target table object
$_conditions protected

array

A list of conditions to be always included when fetching records from the target association
$_dependent protected

bool

Whether the records on the target table are dependent on the source table, often used to indicate that records should be removed if the owning record in the source table is deleted.
$_finder protected

string

The default finder name to use for fetching rows from the target table
$_foreignKey protected

string|array

The name of the field representing the foreign key to the table to load
$_joinType protected

string

The type of join to be used when adding the association to a query
$_name protected

string

Name given to the association, it usually represents the alias assigned to the target associated table
$_propertyName protected

string

The property name that should be filled with data from the target table in the source table record.
$_saveStrategy protected

string

Saving strategy to be used by this association
$_sort protected

mixed

Order in which target records should be returned
$_sourceTable protected

Cake\ORM\Table

Source table instance
$_strategy protected

string

The strategy name to be used to fetch associated records.
$_tableLocator protected

Cake\ORM\Locator\LocatorInterface

Table locator instance
$_targetTable protected

Cake\ORM\Table

Target table instance
$_validStrategies protected

array

Valid strategies for this type of association

Method Summary

__call() public

Proxies method calls to the target table.
__construct() public

Constructor. Subclasses can override _options function to get the original list of passed options if expecting any other special key
__get() public

Proxies property retrieval to the target table. This is handy for getting this association's associations
__isset() public

Proxies the isset call to the target table. This is handy to check if the target table has another association with the passed name
_addFilteringCondition() protected

Appends any conditions required to load the relevant set of records in the target table query given a filter key and some filtering values.
_addFilteringJoin() public

Appends any conditions required to load the relevant set of records in the target table query given a filter key and some filtering values when the filtering needs to be done using a subquery.
_appendFields() protected

Helper function used to conditionally append fields to the select clause of a query from the fields found in another query object.
_appendNotMatching() protected

Conditionally adds a condition to the passed Query that will make it find records where there is no match with this association.
_assertFieldsPresent() protected

Checks that the fetching query either has auto fields on or has the foreignKey fields selected. If the required fields are missing, throws an exception.
_bindNewAssociations() protected

Applies all attachable associations to $query out of the containments found in the $surrogate query.
_buildQuery() protected

Auxiliary function to construct a new Query object to return all the records in the target table that are associated to those specified in $options from the source table
_buildResultMap() protected

Builds an array containing the results from fetchQuery indexed by the foreignKey value corresponding to this association.
_buildSubquery() protected

Builds a query to be used as a condition for filtering records in the target table, it is constructed by cloning the original query that was used to load records in the source table.
_camelize() protected

Creates a camelized version of $name
_createTupleCondition() protected

Returns a TupleComparison object that can be used for matching all the fields from $keys with the tuple values in $filter using the provided operator.
_defaultOptions() protected

Returns the default options to use for the eagerLoader
_dispatchBeforeFind() protected

Triggers beforeFind on the target table for the query this association is attaching to
_entityName() protected

Creates the proper entity name (singular) for the specified name
_extractFinder() protected

Helper method to infer the requested finder and its options.
_fixtureName() protected

Creates a fixture name
_foreignKeyAcceptsNull() protected

Checks the nullable flag of the foreign key
_formatAssociationResults() protected

Adds a formatter function to the passed $query if the $surrogate query declares any other formatter. Since the $surrogate query correspond to the associated target table, the resulting formatter will be the result of applying the surrogate formatters to only the property corresponding to such table.
_joinCondition() protected

Returns a single or multiple conditions to be appended to the generated join clause for getting the results on the target table.
_linkField() protected

Generates a string used as a table field that contains the values upon which the filter should be applied
_modelKey() protected

Creates the proper underscored model key for associations
_modelNameFromKey() protected

Creates the proper model name from a foreign key
_multiKeysInjector() protected

Returns a callable to be used for each row in a query result set for injecting the eager loaded rows when the matching needs to be done with multiple foreign keys
_options() protected

Parse extra options passed in the constructor.
_pluginNamespace() protected

Return plugin's namespace
_pluginPath() protected

Find the correct path for a plugin. Scans $pluginPaths for the plugin you want.
_pluralHumanName() protected

Creates the plural human name used in views
_propertyName() protected

Returns default property name based on association name.
_resultInjector() protected

Returns a callable to be used for each row in a query result set for injecting the eager loaded rows
_singularHumanName() protected

Creates the singular human name used in views
_singularName() protected

Creates the singular name for use in views.
_subqueryFields() protected

Calculate the fields that need to participate in a subquery.
_unlink() protected

Deletes/sets null the related objects matching $conditions. The action which is taken depends on the dependency between source and targets and also on foreign key nullability
_unlinkAssociated() protected

Deletes/sets null the related objects according to the dependency between source and targets and foreign key nullability Skips deleting records present in $remainingEntities
_variableName() protected

Creates the plural variable name for views
attachTo() public

Alters a Query object to include the associated target table data in the final result
bindingKey() public

Sets the name of the field representing the binding field with the target table. When not manually specified the primary key of the owning side table is used.
canBeJoined() public

Whether this association can be expressed directly in a query join
cascadeCallbacks() public

Sets whether or not cascaded deletes should also fire callbacks. If no arguments are passed, the current configured value is returned
cascadeDelete() public

Cascade a delete to remove dependent records.
className() public

The class name of the target table object
conditions() public

Sets a list of conditions to be always included when fetching records from the target association. If no parameters are passed the current list is returned
defaultRowValue() public

Returns a modified row after appending a property for this association with the default empty value according to whether the association was joined or fetched externally.
deleteAll() public

Proxies the delete operation to the target table's deleteAll method
dependent() public

Sets whether the records on the target table are dependent on the source table.
eagerLoader() public

Eager loads a list of records in the target table that are related to another set of records in the source table. Source records can specified in two ways: first one is by passing a Query object setup to find on the source table and the other way is by explicitly passing an array of primary key values from the source table.
exists() public

Proxies the operation to the target table's exists method after appending the default conditions for this association
find() public

Proxies the finding operation to the target table's find method and modifies the query accordingly based of this association configuration
finder() public

Sets the default finder to use for fetching rows from the target table. If no parameters are passed, it will return the currently configured finder name.
foreignKey() public

Sets the name of the field representing the foreign key to the source table. If no parameters are passed current field is returned
isOwningSide() public

Returns whether or not the passed table is the owning side for this association. This means that rows in the 'target' table would miss important or required information if the row in 'source' did not exist.
joinType() public

Sets the type of join to be used when adding the association to a query. If no arguments are passed, the currently configured type is returned.
link() public

Associates the source entity to each of the target entities provided. When using this method, all entities in $targetEntities will be appended to the source entity's property corresponding to this association object.
name() public

Sets the name for this association. If no argument is passed then the current configured name will be returned
property() public

Sets the property name that should be filled with data from the target table in the source table record. If no arguments are passed, the currently configured type is returned.
replace() public

Replaces existing association links between the source entity and the target with the ones passed. This method does a smart cleanup, links that are already persisted and present in $targetEntities will not be deleted, new links will be created for the passed target entities that are not already in the database and the rest will be removed.
requiresKeys() public

Returns true if the eager loading process will require a set of the owning table's binding keys in order to use them as a filter in the finder query.
saveAssociated() public

Takes an entity from the source table and looks if there is a field matching the property name for this association. The found entity will be saved on the target table for this association by passing supplied $options
saveStrategy() public

Sets the strategy that should be used for saving. If called with no arguments, it will return the currently configured strategy
sort() public

Sets the sort order in which target records should be returned. If no arguments are passed the currently configured value is returned
source() public

Sets the table instance for the source side of the association. If no arguments are passed, the current configured table instance is returned
strategy() public

Sets the strategy name to be used to fetch associated records. Keep in mind that some association types might not implement but a default strategy, rendering any changes to this setting void. If no arguments are passed, the currently configured strategy is returned.
tableLocator() public

Sets the table locator. If no parameters are passed, it will return the currently used locator.
target() public

Sets the table instance for the target side of the association. If no arguments are passed, the current configured table instance is returned
transformRow() public

Correctly nests a result row associated values into the correct array keys inside the source results.
type() public

Get the relationship type.
unlink() public

Removes all links between the passed source entity and each of the provided target entities. This method assumes that all passed objects are already persisted in the database and that each of them contain a primary key value.
updateAll() public

Proxies the update operation to the target table's updateAll method

Method Detail

__call() ¶ public

__call(string $method, array $argument): mixed

Proxies method calls to the target table.

Parameters

string $method: name of the method to be invoked
array $argument: List of arguments passed to the function

Returns

mixed

Throws

BadMethodCallException

__construct() ¶ public

__construct(string $alias, array $options = [])

Constructor. Subclasses can override _options function to get the original list of passed options if expecting any other special key

Parameters

string $alias: The name given to the association
array $options optional: A list of properties to be set on this object

__get() ¶ public

__get(string $property): Cake\ORM\Association

Proxies property retrieval to the target table. This is handy for getting this association's associations

Parameters

string $property: the property name

Returns

Cake\ORM\Association

Throws

RuntimeException
if no association with such name exists

__isset() ¶ public

__isset(string $property): bool

Proxies the isset call to the target table. This is handy to check if the target table has another association with the passed name

Parameters

string $property: the property name

Returns

bool

true if the property exists

_addFilteringCondition() ¶ protected

_addFilteringCondition(Cake\ORM\Query $query, string|array $key, mixed $filter): Cake\ORM\Query

Appends any conditions required to load the relevant set of records in the target table query given a filter key and some filtering values.

Parameters

Cake\ORM\Query $query: Target table's query
string|array $key: the fields that should be used for filtering
mixed $filter: the value that should be used to match for $key

Returns

Cake\ORM\Query

_addFilteringJoin() ¶ public

_addFilteringJoin(Cake\ORM\Query $query, string $key, Cake\ORM\Query $subquery): Cake\ORM\Query

Appends any conditions required to load the relevant set of records in the target table query given a filter key and some filtering values when the filtering needs to be done using a subquery.

Parameters

Cake\ORM\Query $query: Target table's query
string $key: the fields that should be used for filtering
Cake\ORM\Query $subquery: The Subquery to use for filtering

Returns

Cake\ORM\Query

_appendFields() ¶ protected

_appendFields(Cake\ORM\Query $query, Cake\ORM\Query $surrogate, array $options): void

Helper function used to conditionally append fields to the select clause of a query from the fields found in another query object.

Parameters

Cake\ORM\Query $query: the query that will get the fields appended to
Cake\ORM\Query $surrogate: the query having the fields to be copied from
array $options: options passed to the method attachTo

Returns

void

_appendNotMatching() ¶ protected

_appendNotMatching(Cake\Datasource\QueryInterface $query, array $options): void

Conditionally adds a condition to the passed Query that will make it find records where there is no match with this association.

Parameters

Cake\Datasource\QueryInterface $query: The query to modify
array $options: Options array containing the negateMatch key.

Returns

void

_assertFieldsPresent() ¶ protected

_assertFieldsPresent(Cake\ORM\Query $fetchQuery, array $key): void

Checks that the fetching query either has auto fields on or has the foreignKey fields selected. If the required fields are missing, throws an exception.

Parameters

Cake\ORM\Query $fetchQuery: The association fetching query
array $key: The foreign key fields to check

Returns

void

Throws

InvalidArgumentException

_bindNewAssociations() ¶ protected

_bindNewAssociations(Cake\ORM\Query $query, Cake\ORM\Query $surrogate, array $options): void

Applies all attachable associations to $query out of the containments found in the $surrogate query.

Copies all contained associations from the $surrogate query into the passed $query. Containments are altered so that they respect the associations chain from which they originated.

Parameters

Cake\ORM\Query $query: the query that will get the associations attached to
Cake\ORM\Query $surrogate: the query having the containments to be attached
array $options: options passed to the method attachTo

Returns

void

_buildQuery() ¶ protected

_buildQuery(array $options): Cake\ORM\Query

Auxiliary function to construct a new Query object to return all the records in the target table that are associated to those specified in $options from the source table

Parameters

array $options: options accepted by eagerLoader()

Returns

Cake\ORM\Query

Throws

InvalidArgumentException
When a key is required for associations but not selected.

_buildResultMap() ¶ protected

_buildResultMap(Cake\ORM\Query $fetchQuery, array $options): array

Builds an array containing the results from fetchQuery indexed by the foreignKey value corresponding to this association.

Parameters

Cake\ORM\Query $fetchQuery
array $options

Returns

array

_buildSubquery() ¶ protected

_buildSubquery(Cake\ORM\Query $query): Cake\ORM\Query

Builds a query to be used as a condition for filtering records in the target table, it is constructed by cloning the original query that was used to load records in the source table.

Parameters

Cake\ORM\Query $query: the original query used to load source records

Returns

Cake\ORM\Query

_camelize() ¶ protected

_camelize(string $name): string

Creates a camelized version of $name

Parameters

string $name: name

Returns

string

Camelized name

_createTupleCondition() ¶ protected

_createTupleCondition(Cake\ORM\Query $query, array $keys, mixed $filter, string $operator): Cake\Database\Expression\TupleComparison

Returns a TupleComparison object that can be used for matching all the fields from $keys with the tuple values in $filter using the provided operator.

Parameters

Cake\ORM\Query $query: Target table's query
array $keys: the fields that should be used for filtering
mixed $filter: the value that should be used to match for $key
string $operator: The operator for comparing the tuples

Returns

Cake\Database\Expression\TupleComparison

_defaultOptions() ¶ protected

_defaultOptions(): array

Returns the default options to use for the eagerLoader

Returns

array

_dispatchBeforeFind() ¶ protected

_dispatchBeforeFind(Cake\ORM\Query $query): void

Triggers beforeFind on the target table for the query this association is attaching to

Parameters

Cake\ORM\Query $query: the query this association is attaching itself to

Returns

void

_entityName() ¶ protected

_entityName(string $name): string

Creates the proper entity name (singular) for the specified name

Parameters

string $name: Name

Returns

string

Camelized and plural model name

_extractFinder() ¶ protected

_extractFinder(string|array $finderData): array

Helper method to infer the requested finder and its options.

Returns the inferred options from the finder $type.

Examples:

The following will call the finder 'translations' with the value of the finder as its options: $query->contain(['Comments' => ['finder' => ['translations']]]); $query->contain(['Comments' => ['finder' => ['translations' => []]]]); $query->contain(['Comments' => ['finder' => ['translations' => ['locales' => ['en_US']]]]]);

Parameters

string|array $finderData: The finder name or an array having the name as key and options as value.

Returns

array

_fixtureName() ¶ protected

_fixtureName(string $name): string

Creates a fixture name

Parameters

string $name: Model class name

Returns

string

Singular model key

_foreignKeyAcceptsNull() ¶ protected

_foreignKeyAcceptsNull(Cake\ORM\Table $table, array $properties): bool

Checks the nullable flag of the foreign key

Parameters

Cake\ORM\Table $table: the table containing the foreign key
array $properties: the list of fields that compose the foreign key

Returns

bool

_formatAssociationResults() ¶ protected

_formatAssociationResults(Cake\ORM\Query $query, Cake\ORM\Query $surrogate, array $options): void

Adds a formatter function to the passed $query if the $surrogate query declares any other formatter. Since the $surrogate query correspond to the associated target table, the resulting formatter will be the result of applying the surrogate formatters to only the property corresponding to such table.

Parameters

Cake\ORM\Query $query: the query that will get the formatter applied to
Cake\ORM\Query $surrogate: the query having formatters for the associated target table.
array $options: options passed to the method attachTo

Returns

void

_joinCondition() ¶ protected

_joinCondition(array $options): array

Returns a single or multiple conditions to be appended to the generated join clause for getting the results on the target table.

Parameters

array $options: list of options passed to attachTo method

Returns

array

Throws

RuntimeException
if the number of columns in the foreignKey do not match the number of columns in the source table primaryKey

_linkField() ¶ protected

_linkField(array $options): string|array

Generates a string used as a table field that contains the values upon which the filter should be applied

Parameters

array $options

Returns

string|array

_modelKey() ¶ protected

_modelKey(string $name): string

Creates the proper underscored model key for associations

If the input contains a dot, assume that the right side is the real table name.

Parameters

string $name: Model class name

Returns

string

Singular model key

_modelNameFromKey() ¶ protected

_modelNameFromKey(string $key): string

Creates the proper model name from a foreign key

Parameters

string $key: Foreign key

Returns

string

Model name

_multiKeysInjector() ¶ protected

_multiKeysInjector(array $resultMap, array $sourceKeys, string $nestKey): Closure

Returns a callable to be used for each row in a query result set for injecting the eager loaded rows when the matching needs to be done with multiple foreign keys

Parameters

array $resultMap: A keyed arrays containing the target table
array $sourceKeys: An array with aliased keys to match
string $nestKey: The key under which results should be nested

Returns

Closure

_options() ¶ protected

_options(array $opts): void

Parse extra options passed in the constructor.

Parameters

array $opts: original list of options passed in constructor

Returns

void

_pluginNamespace() ¶ protected

_pluginNamespace(string $pluginName): string

Return plugin's namespace

Parameters

string $pluginName: Plugin name

Returns

string

Plugin's namespace

_pluginPath() ¶ protected

_pluginPath(string $pluginName): string

Find the correct path for a plugin. Scans $pluginPaths for the plugin you want.

Parameters

string $pluginName: Name of the plugin you want ie. DebugKit

Returns

string

path path to the correct plugin.

_pluralHumanName() ¶ protected

_pluralHumanName(string $name): string

Creates the plural human name used in views

Parameters

string $name: Controller name

Returns

string

Plural human name

_propertyName() ¶ protected

_propertyName(): string

Returns default property name based on association name.

Returns

string

_resultInjector() ¶ protected

_resultInjector(Cake\ORM\Query $fetchQuery, array $resultMap, array $options): Closure

Returns a callable to be used for each row in a query result set for injecting the eager loaded rows

Parameters

Cake\ORM\Query $fetchQuery: the Query used to fetch results
array $resultMap: an array with the foreignKey as keys and the corresponding target table results as value.
array $options: The options passed to the eagerLoader method

Returns

Closure

_singularHumanName() ¶ protected

_singularHumanName(string $name): string

Creates the singular human name used in views

Parameters

string $name: Controller name

Returns

string

Singular human name

_singularName() ¶ protected

_singularName(string $name): string

Creates the singular name for use in views.

Parameters

string $name: Name to use

Returns

string

Variable name

_subqueryFields() ¶ protected

_subqueryFields(Cake\ORM\Query $query): array

Calculate the fields that need to participate in a subquery.

Normally this includes the binding key columns. If there is a an ORDER BY, those columns are also included as the fields may be calculated or constant values, that need to be present to ensure the correct association data is loaded.

Parameters

Cake\ORM\Query $query: The query to get fields from.

Returns

array

The list of fields for the subquery.

_unlink() ¶ protected

_unlink(array $foreignKey, Cake\ORM\Table $target, array $conditions = [], array $options = []): bool

Deletes/sets null the related objects matching $conditions. The action which is taken depends on the dependency between source and targets and also on foreign key nullability

Parameters

array $foreignKey: array of foreign key properties
Cake\ORM\Table $target: The associated table
array $conditions optional: The conditions that specifies what are the objects to be unlinked
array $options optional: list of options accepted by Table::delete()

Returns

bool

success

_unlinkAssociated() ¶ protected

_unlinkAssociated(array $properties, Cake\Datasource\EntityInterface $entity, Cake\ORM\Table $target, array $remainingEntities = [], array $options = []): bool

Deletes/sets null the related objects according to the dependency between source and targets and foreign key nullability Skips deleting records present in $remainingEntities

Parameters

array $properties: array of foreignKey properties
Cake\Datasource\EntityInterface $entity: the entity which should have its associated entities unassigned
Cake\ORM\Table $target: The associated table
array $remainingEntities optional: Entities that should not be deleted
array $options optional: list of options accepted by Table::delete()

Returns

bool

success

_variableName() ¶ protected

_variableName(string $name): string

Creates the plural variable name for views

Parameters

string $name: Name to use

Returns

string

Plural name for views

attachTo() ¶ public

attachTo(Cake\ORM\Query $query, array $options = []): void

Alters a Query object to include the associated target table data in the final result

The options array accept the following keys:

includeFields: Whether to include target model fields in the result or not
foreignKey: The name of the field to use as foreign key, if false none will be used
conditions: array with a list of conditions to filter the join with, this will be merged with any conditions originally configured for this association
fields: a list of fields in the target table to include in the result
type: The type of join to be used (e.g. INNER) the records found on this association
aliasPath: A dot separated string representing the path of association names followed from the passed query main table to this association.
propertyPath: A dot separated string representing the path of association properties to be followed from the passed query main entity to this association
joinType: The SQL join type to use in the query.
negateMatch: Will append a condition to the passed query for excluding matches. with this association.

Parameters

Cake\ORM\Query $query: the query to be altered to include the target table data
array $options optional: Any extra options or overrides to be taken in account

Returns

void

Throws

RuntimeException
if the query builder passed does not return a query object

bindingKey() ¶ public

bindingKey(string|null $key = null): string|array

Sets the name of the field representing the binding field with the target table. When not manually specified the primary key of the owning side table is used.

If no parameters are passed the current field is returned

Parameters

string|null $key optional: the table field to be used to link both tables together

Returns

string|array

canBeJoined() ¶ public

canBeJoined(array $options = []): bool

Whether this association can be expressed directly in a query join

Parameters

array $options optional: custom options key that could alter the return value

Returns

bool

if the 'matching' key in $option is true then this function will return true, false otherwise

cascadeCallbacks() ¶ public

cascadeCallbacks(bool|null $cascadeCallbacks = null): bool

Sets whether or not cascaded deletes should also fire callbacks. If no arguments are passed, the current configured value is returned

Parameters

bool|null $cascadeCallbacks optional: cascade callbacks switch value

Returns

bool

cascadeDelete() ¶ public

cascadeDelete(Cake\Datasource\EntityInterface $entity, array $options = []): bool

Cascade a delete to remove dependent records.

This method does nothing if the association is not dependent.

Parameters

Cake\Datasource\EntityInterface $entity: The entity that started the cascaded delete.
array $options optional: The options for the original delete.

Returns

bool

Success.

className() ¶ public

className(): string

The class name of the target table object

Returns

string

conditions() ¶ public

conditions(array|null $conditions = null): array

Sets a list of conditions to be always included when fetching records from the target association. If no parameters are passed the current list is returned

Parameters

array|null $conditions optional: list of conditions to be used

Returns

array

defaultRowValue() ¶ public

defaultRowValue(array $row, bool $joined): array

Returns a modified row after appending a property for this association with the default empty value according to whether the association was joined or fetched externally.

Parameters

array $row
bool $joined

Returns

array

deleteAll() ¶ public

deleteAll(mixed $conditions): int

Proxies the delete operation to the target table's deleteAll method

Parameters

mixed $conditions: Conditions to be used, accepts anything Query::where() can take.

Returns

int

Returns the number of affected rows.

dependent() ¶ public

dependent(bool|null $dependent = null): bool

Sets whether the records on the target table are dependent on the source table.

This is primarily used to indicate that records should be removed if the owning record in the source table is deleted.

If no parameters are passed the current setting is returned.

Parameters

bool|null $dependent optional: Set the dependent mode. Use null to read the current state.

Returns

bool

eagerLoader() ¶ public

eagerLoader(array $options): Closure

Eager loads a list of records in the target table that are related to another set of records in the source table. Source records can specified in two ways: first one is by passing a Query object setup to find on the source table and the other way is by explicitly passing an array of primary key values from the source table.

The required way of passing related source records is controlled by "strategy" When the subquery strategy is used it will require a query on the source table. When using the select strategy, the list of primary keys will be used.

Returns a closure that should be run for each record returned in a specific Query. This callable will be responsible for injecting the fields that are related to each specific passed row.

Options array accepts the following keys:

query: Query object setup to find the source table records
keys: List of primary key values from the source table
foreignKey: The name of the field used to relate both tables
conditions: List of conditions to be passed to the query where() method
sort: The direction in which the records should be returned
fields: List of fields to select from the target table
contain: List of related tables to eager load associated to the target table
strategy: The name of strategy to use for finding target table records
nestKey: The array key under which results will be found when transforming the row

Parameters

array $options

Returns

Closure

exists() ¶ public

exists(array|callable|Cake\Database\ExpressionInterface $conditions): bool

Proxies the operation to the target table's exists method after appending the default conditions for this association

Parameters

array|callable|Cake\Database\ExpressionInterface $conditions: The conditions to use for checking if any record matches.

Returns

bool

find() ¶ public

find(string|array|null $type = null, array $options = []): Cake\ORM\Query

Proxies the finding operation to the target table's find method and modifies the query accordingly based of this association configuration

Parameters

string|array|null $type optional: the type of query to perform, if an array is passed, it will be interpreted as the $options parameter
array $options optional: The options to for the find

Returns

Cake\ORM\Query

finder() ¶ public

finder(string|null $finder = null): string

Sets the default finder to use for fetching rows from the target table. If no parameters are passed, it will return the currently configured finder name.

Parameters

string|null $finder optional: the finder name to use

Returns

string

foreignKey() ¶ public

foreignKey(string|null $key = null): string

Sets the name of the field representing the foreign key to the source table. If no parameters are passed current field is returned

Parameters

string|null $key optional: the key to be used to link both tables together

Returns

string

isOwningSide() ¶ public

isOwningSide(Cake\ORM\Table $side): bool

Returns whether or not the passed table is the owning side for this association. This means that rows in the 'target' table would miss important or required information if the row in 'source' did not exist.

Parameters

Cake\ORM\Table $side: The potential Table with ownership

Returns

bool

joinType() ¶ public

joinType(string|null $type = null): string

Sets the type of join to be used when adding the association to a query. If no arguments are passed, the currently configured type is returned.

Parameters

string|null $type optional: the join type to be used (e.g. INNER)

Returns

string

link() ¶ public

link(Cake\Datasource\EntityInterface $sourceEntity, array $targetEntities, array $options = []): bool

Associates the source entity to each of the target entities provided. When using this method, all entities in $targetEntities will be appended to the source entity's property corresponding to this association object.

This method does not check link uniqueness. Changes are persisted in the database and also in the source entity.

Example:

$user = $users->get(1);
$allArticles = $articles->find('all')->toArray();
$users->Articles->link($user, $allArticles);

$user->get('articles') will contain all articles in $allArticles after linking

Parameters

Cake\Datasource\EntityInterface $sourceEntity: the row belonging to the source side of this association
array $targetEntities: list of entities belonging to the target side of this association
array $options optional: list of options to be passed to the internal save call

Returns

bool

true on success, false otherwise

name() ¶ public

name(string|null $name = null): string

Sets the name for this association. If no argument is passed then the current configured name will be returned

Parameters

string|null $name optional: Name to be assigned

Returns

string

property() ¶ public

property(string|null $name = null): string

Sets the property name that should be filled with data from the target table in the source table record. If no arguments are passed, the currently configured type is returned.

Parameters

string|null $name optional: The name of the association property. Use null to read the current value.

Returns

string

replace() ¶ public

replace(Cake\Datasource\EntityInterface $sourceEntity, array $targetEntities, array $options = []): bool

Replaces existing association links between the source entity and the target with the ones passed. This method does a smart cleanup, links that are already persisted and present in $targetEntities will not be deleted, new links will be created for the passed target entities that are not already in the database and the rest will be removed.

For example, if an author has many articles, such as 'article1','article 2' and 'article 3' and you pass to this method an array containing the entities for articles 'article 1' and 'article 4', only the link for 'article 1' will be kept in database, the links for 'article 2' and 'article 3' will be deleted and the link for 'article 4' will be created.

Existing links are not deleted and created again, they are either left untouched or updated.

This method does not check link uniqueness.

On success, the passed $sourceEntity will contain $targetEntities as value in the corresponding property for this association.

Additional options for new links to be saved can be passed in the third argument, check Table::save() for information on the accepted options.

Example:

$author->articles = [$article1, $article2, $article3, $article4];
$authors->save($author);
$articles = [$article1, $article3];
$authors->association('articles')->replace($author, $articles);

$author->get('articles') will contain only [$article1, $article3] at the end

Parameters

Cake\Datasource\EntityInterface $sourceEntity: an entity persisted in the source table for this association
array $targetEntities: list of entities from the target table to be linked
array $options optional: list of options to be passed to the internal save/delete calls when persisting/updating new links, or deleting existing ones

Returns

bool

success

Throws

InvalidArgumentException
if non persisted entities are passed or if any of them is lacking a primary key value

requiresKeys() ¶ public

requiresKeys(array $options = []): bool

Returns true if the eager loading process will require a set of the owning table's binding keys in order to use them as a filter in the finder query.

Parameters

array $options optional: The options containing the strategy to be used.

Returns

bool

true if a list of keys will be required

saveAssociated() ¶ public

saveAssociated(Cake\Datasource\EntityInterface $entity, array|ArrayObject $options = []): bool|Cake\Datasource\EntityInterface

Takes an entity from the source table and looks if there is a field matching the property name for this association. The found entity will be saved on the target table for this association by passing supplied $options

Parameters

Cake\Datasource\EntityInterface $entity: an entity from the source table
array|ArrayObject $options optional: options to be passed to the save method in the target table

Returns

bool|Cake\Datasource\EntityInterface

false if $entity could not be saved, otherwise it returns the saved entity

Throws

InvalidArgumentException
when the association data cannot be traversed.

saveStrategy() ¶ public

saveStrategy(string|null $strategy = null): string

Sets the strategy that should be used for saving. If called with no arguments, it will return the currently configured strategy

Parameters

string|null $strategy optional: the strategy name to be used

Returns

string

the strategy to be used for saving

Throws

InvalidArgumentException
if an invalid strategy name is passed

sort() ¶ public

sort(mixed $sort = null): mixed

Sets the sort order in which target records should be returned. If no arguments are passed the currently configured value is returned

Parameters

mixed $sort optional: A find() compatible order clause

Returns

mixed

source() ¶ public

source(Cake\ORM\Table|null $table = null): Cake\ORM\Table

Sets the table instance for the source side of the association. If no arguments are passed, the current configured table instance is returned

Parameters

Cake\ORM\Table|null $table optional: the instance to be assigned as source side

Returns

Cake\ORM\Table

strategy() ¶ public

strategy(string|null $name = null): string

Sets the strategy name to be used to fetch associated records. Keep in mind that some association types might not implement but a default strategy, rendering any changes to this setting void. If no arguments are passed, the currently configured strategy is returned.

Parameters

string|null $name optional: The strategy type. Use null to read the current value.

Returns

string

Throws

InvalidArgumentException
When an invalid strategy is provided.

tableLocator() ¶ public

tableLocator(Cake\ORM\Locator\LocatorInterface|null $tableLocator = null): Cake\ORM\Locator\LocatorInterface

Sets the table locator. If no parameters are passed, it will return the currently used locator.

Parameters

Cake\ORM\Locator\LocatorInterface|null $tableLocator optional: LocatorInterface instance.

Returns

Cake\ORM\Locator\LocatorInterface

target() ¶ public

target(Cake\ORM\Table|null $table = null): Cake\ORM\Table

Sets the table instance for the target side of the association. If no arguments are passed, the current configured table instance is returned

Parameters

Cake\ORM\Table|null $table optional: the instance to be assigned as target side

Returns

Cake\ORM\Table

transformRow() ¶ public

transformRow(array $row, string $nestKey, bool $joined, string $targetProperty = null): array

Correctly nests a result row associated values into the correct array keys inside the source results.

Parameters

array $row: The row to transform
string $nestKey: The array key under which the results for this association should be found
bool $joined: Whether or not the row is a result of a direct join with this association
string $targetProperty optional: The property name in the source results where the association data should be nested in. Will use the default one if not provided.

Returns

array

type() ¶ public

type(): string

Get the relationship type.

Returns

string

unlink() ¶ public

unlink(Cake\Datasource\EntityInterface $sourceEntity, array $targetEntities, array $options = []): void

Removes all links between the passed source entity and each of the provided target entities. This method assumes that all passed objects are already persisted in the database and that each of them contain a primary key value.

Options

Additionally to the default options accepted by Table::delete(), the following keys are supported:

cleanProperty: Whether or not to remove all the objects in $targetEntities that are stored in $sourceEntity (default: true)

By default this method will unset each of the entity objects stored inside the source entity.

Changes are persisted in the database and also in the source entity.

Example:

$user = $users->get(1);
$user->articles = [$article1, $article2, $article3, $article4];
$users->save($user, ['Associated' => ['Articles']]);
$allArticles = [$article1, $article2, $article3];
$users->Articles->unlink($user, $allArticles);

$article->get('articles') will contain only [$article4] after deleting in the database

Parameters

Cake\Datasource\EntityInterface $sourceEntity: an entity persisted in the source table for this association
array $targetEntities: list of entities persisted in the target table for this association
array $options optional: list of options to be passed to the internal delete call

Returns

void

Throws

InvalidArgumentException
if non persisted entities are passed or if any of them is lacking a primary key value

updateAll() ¶ public

updateAll(array $fields, mixed $conditions): bool

Proxies the update operation to the target table's updateAll method

Parameters

array $fields: A hash of field => new value.
mixed $conditions: Conditions to be used, accepts anything Query::where() can take.

Returns

bool

Success Returns true if one or more rows are affected.

Class HasMany

Constants

Property Summary

Method Summary

__call() public

__construct() public

__get() public

__isset() public

_addFilteringCondition() protected

_addFilteringJoin() public

_appendFields() protected

_appendNotMatching() protected

_assertFieldsPresent() protected

_bindNewAssociations() protected

_buildQuery() protected

_buildResultMap() protected

_buildSubquery() protected

_camelize() protected

_createTupleCondition() protected

_defaultOptions() protected

_dispatchBeforeFind() protected

_entityName() protected

_extractFinder() protected

_fixtureName() protected

_foreignKeyAcceptsNull() protected

_formatAssociationResults() protected

_joinCondition() protected

_linkField() protected

_modelKey() protected

_modelNameFromKey() protected

_multiKeysInjector() protected

_options() protected

_pluginNamespace() protected

_pluginPath() protected

_pluralHumanName() protected

_propertyName() protected

_resultInjector() protected

_singularHumanName() protected

_singularName() protected

_subqueryFields() protected

_unlink() protected

_unlinkAssociated() protected

_variableName() protected

attachTo() public

bindingKey() public

canBeJoined() public

cascadeCallbacks() public

cascadeDelete() public

className() public

conditions() public

defaultRowValue() public

deleteAll() public

dependent() public

eagerLoader() public

exists() public

find() public

finder() public

foreignKey() public

isOwningSide() public

joinType() public

link() public

name() public

property() public

replace() public

requiresKeys() public

saveAssociated() public

saveStrategy() public

sort() public

source() public

strategy() public

tableLocator() public

target() public

transformRow() public

type() public

unlink() public

updateAll() public

Method Detail

__call() ¶ public

Parameters