Class BelongsToMany
Represents an M - N relationship where there exists a junction - or join - table that contains the association fields between the source and the target table.
An example of a BelongsToMany association would be Article belongs to many Tags.
- Cake\ORM\Association uses Cake\Core\ConventionsTrait, Cake\ORM\Locator\LocatorAwareTrait
- Cake\ORM\Association\BelongsToMany uses Cake\ORM\Association\ExternalAssociationTrait
Method Detail
_appendJunctionJoinsource protected
_appendJunctionJoin( Cake\ORM\Query $query , string|array $conditions )
Append a join to the junction table.
Parameters
-
Cake\ORM\Query
$query
- The query to append.
- string|array
$conditions
- The query conditions to use.
Returns
Cake\ORM\Query
The modified query.
_appendNotMatchingsource protected
_appendNotMatching( Cake\Database\Query $query , array $options )
Conditionally adds a condition to the passed Query that will make it find records where there is no match with this association.
Parameters
-
Cake\Database\Query
$query
- The query to modify
- array
$options
- Options array containing the
negateMatch
key.
Overrides
Cake\ORM\Association::_appendNotMatching()
_buildQuerysource protected
_buildQuery( array $options )
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.
This is used for eager loading records on the target table based on conditions.
Parameters
- array
$options
- options accepted by eagerLoader()
Returns
Cake\ORM\Query
\Cake\ORM\Query
Throws
InvalidArgumentException
When a key is required for associations but not selected.
_buildResultMapsource protected
_buildResultMap( Cake\ORM\Query $fetchQuery , array $options )
Builds an array containing the results from fetchQuery indexed by the foreignKey value corresponding to this association.
Parameters
-
Cake\ORM\Query
$fetchQuery
- The query to get results from
- array
$options
- The options passed to the eager loader
Returns
array
array
Throws
RuntimeException
when the association property is not part of the results set.
_checkPersistenceStatussource protected
_checkPersistenceStatus( Cake\Datasource\EntityInterface $sourceEntity , array $targetEntities )
Throws an exception should any of the passed entities is not persisted.
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
Returns
boolean
bool
Throws
InvalidArgumentException
\InvalidArgumentException
_collectJointEntitiessource protected
_collectJointEntities( Cake\Datasource\EntityInterface $sourceEntity , array $targetEntities )
Returns the list of joint entities that exist between the source entity and each of the passed target entities
Parameters
-
Cake\Datasource\EntityInterface
$sourceEntity
- The row belonging to the source side of this association.
- array
$targetEntities
- The rows belonging to the target side of this association.
Returns
array
array
Throws
InvalidArgumentException
if any of the entities is lacking a primary key value
_diffLinkssource protected
_diffLinks( Cake\ORM\Query $existing , array $jointEntities , array $targetEntities , array $options [] )
Helper method used to delete the difference between the links passed in $existing
and $jointEntities
. This method will return the values from $targetEntities
that were not deleted from calculating the difference.
Parameters
-
Cake\ORM\Query
$existing
- a query for getting existing links
- array
$jointEntities
- link entities that should be persisted
- array
$targetEntities
- entities in target table that are related to the
$jointEntities
- array
$options
optional [] - list of options accepted by
Table::delete()
Returns
array
array
_generateJunctionAssociationssource protected
_generateJunctionAssociations( Cake\ORM\Table $junction , Cake\ORM\Table $source , Cake\ORM\Table $target )
Generate associations on the junction table as necessary
Generates the following associations:
- junction belongsTo source e.g. ArticlesTags belongsTo Tags
- junction belongsTo target e.g. ArticlesTags belongsTo Articles
You can override these generated associations by defining associations with the correct aliases.
Parameters
-
Cake\ORM\Table
$junction
- The junction table.
-
Cake\ORM\Table
$source
- The source table.
-
Cake\ORM\Table
$target
- The target table.
_generateSourceAssociationssource protected
_generateSourceAssociations( Cake\ORM\Table $junction , Cake\ORM\Table $source )
Generate additional source table associations as necessary.
Generates the following associations:
- source hasMany junction e.g. Tags hasMany ArticlesTags
You can override these generated associations by defining associations with the correct aliases.
Parameters
-
Cake\ORM\Table
$junction
- The junction table.
-
Cake\ORM\Table
$source
- The source table.
_generateTargetAssociationssource protected
_generateTargetAssociations( Cake\ORM\Table $junction , Cake\ORM\Table $source , Cake\ORM\Table $target )
Generate reciprocal associations as necessary.
Generates the following associations:
- target hasMany junction e.g. Articles hasMany ArticlesTags
- target belongsToMany source e.g Articles belongsToMany Tags.
You can override these generated associations by defining associations with the correct aliases.
Parameters
-
Cake\ORM\Table
$junction
- The junction table.
-
Cake\ORM\Table
$source
- The source table.
-
Cake\ORM\Table
$target
- The target table.
_joinConditionsource protected
_joinCondition( array $options )
Return false as join conditions are defined in the junction table
Parameters
- array
$options
- list of options passed to attachTo method
Returns
boolean
false
Throws
RuntimeException
if the number of columns in the foreignKey do not match the number of columns in the source table primaryKey
Overrides
Cake\ORM\Association::_joinCondition()
_junctionAssociationNamesource protected
_junctionAssociationName( )
Returns the name of the association from the target table to the junction table, this name is used to generate alias in the query and to later on retrieve the results.
Returns
string
string
_junctionTableNamesource protected
_junctionTableName( string|null $name null )
Sets the name of the junction table. If no arguments are passed the current configured name is returned. A default name based of the associated tables will be generated if none found.
Parameters
- string|null
$name
optional null - The name of the junction table.
Returns
string
string
_linkFieldsource protected
_linkField( array $options )
Generates a string used as a table field that contains the values upon which the filter should be applied
Parameters
- array
$options
- the options to use for getting the link field.
Returns
string
string
_optionssource protected
_options( array $opts )
Parse extra options passed in the constructor.
Parameters
- array
$opts
- original list of options passed in constructor
Overrides
Cake\ORM\Association::_options()
_saveLinkssource protected
_saveLinks( Cake\Datasource\EntityInterface $sourceEntity , array $targetEntities , array $options )
Creates links between the source entity and each of the passed target entities
Parameters
-
Cake\Datasource\EntityInterface
$sourceEntity
- the entity from source table in this association
- array
$targetEntities
- list of entities to link to link to the source entity using the junction table
- array
$options
- list of options accepted by
Table::save()
Returns
boolean
success
_saveTargetsource protected
_saveTarget( Cake\Datasource\EntityInterface $parentEntity , array|Traversable $entities , array $options )
Persists each of the entities into the target table and creates links between the parent entity and each one of the saved target entities.
Parameters
-
Cake\Datasource\EntityInterface
$parentEntity
- the source entity containing the target entities to be saved.
- array|Traversable
$entities
- list of entities to persist in target table and to link to the parent entity
- array
$options
- list of options accepted by
Table::save()
Returns
Cake\Datasource\EntityInterface|boolean
The parent entity after all links have been created if no errors happened, false otherwise
Throws
InvalidArgumentException
if the property representing the association in the parent entity cannot be traversed
attachTosource public
attachTo( Cake\ORM\Query $query , array $options [] )
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
- 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)
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
Throws
RuntimeException
if the query builder passed does not return a query object
Overrides
Cake\ORM\Association::attachTo()
cascadeDeletesource public
cascadeDelete( Cake\Datasource\EntityInterface $entity , array $options [] )
Clear out the data in the junction table for a given entity.
Parameters
-
Cake\Datasource\EntityInterface
$entity
- The entity that started the cascading delete.
- array
$options
optional [] - The options for the original delete.
Returns
boolean
Success.
conditionssource public
conditions( array|null $conditions null )
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 null - list of conditions to be used
Returns
array
array
Overrides
Cake\ORM\Association::conditions()
findsource public
find( string|array $type null , array $options [] )
Proxies the finding operation to the target table's find method and modifies the query accordingly based of this association configuration.
If your association includes conditions, the junction table will be included in the query's contained associations.
Parameters
- string|array
$type
optional null - 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
\Cake\ORM\Query
See
Cake\ORM\Table::find()
Overrides
Cake\ORM\Association::find()
isOwningSidesource public
isOwningSide( Cake\ORM\Table $side )
Returns boolean true, as both of the tables 'own' rows in the other side of the association via the joint table.
Parameters
-
Cake\ORM\Table
$side
- The potential Table with ownership
Returns
boolean
bool
junctionsource public
junction( string|Cake\ORM\Table|null $table null )
Sets the table instance for the junction relation. If no arguments are passed, the current configured table instance is returned
Parameters
- string|
Cake\ORM\Table
|null$table
optional null - Name or instance for the join table
Returns
Cake\ORM\Table
\Cake\ORM\Table
junctionConditionssource protected
junctionConditions( )
Returns filtered conditions that specifically reference the junction table.
Returns
array
array
linksource public
link( Cake\Datasource\EntityInterface $sourceEntity , array $targetEntities , array $options [] )
Associates the source entity to each of the target entities provided by creating links in the junction table. Both the source entity and each of the target entities are assumed to be already persisted, if the are marked as new or their status is unknown, an exception will be thrown.
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.
Example:
$newTags = $tags->find('relevant')->execute(); $articles->association('tags')->link($article, $newTags);
$article->get('tags')
will contain all tags in $newTags
after liking
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
boolean
true on success, false otherwise
Throws
InvalidArgumentException
when any of the values in $targetEntities is detected to not be already persisted
replaceLinkssource public
replaceLinks( Cake\Datasource\EntityInterface $sourceEntity , array $targetEntities , array $options [] )
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 article is linked to tags 'cake' and 'framework' and you pass to this method an array containing the entities for tags 'cake', 'php' and 'awesome', only the link for cake will be kept in database, the link for 'framework' will be deleted and the links for 'php' and 'awesome' will be created.
Existing links are not deleted and created again, they are either left untouched or updated so that potential extra information stored in the joint row is not lost. Updating the link row can be done by making sure the corresponding passed target entity contains the joint property with its primary key and any extra information to be stored.
On success, the passed $sourceEntity
will contain $targetEntities
as value in the corresponding property for this association.
This method assumes that links between both the source entity and each of the target entities are unique. That is, for any given row in the source table there can only be one link in the junction table pointing to any other given row in the target table.
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:
$article->tags = [$tag1, $tag2, $tag3, $tag4]; $articles->save($article); $tags = [$tag1, $tag3]; $articles->association('tags')->replaceLinks($article, $tags);
$article->get('tags')
will contain only [$tag1, $tag3]
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
boolean
success
Throws
InvalidArgumentException
if non persisted entities are passed or if any of them is lacking a primary key value
saveAssociatedsource public
saveAssociated( Cake\Datasource\EntityInterface $entity , array $options [] )
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
When using the 'append' strategy, this function will only create new links between each side of this association. It will not destroy existing ones even though they may not be present in the array of entities to be saved.
When using the 'replace' strategy, existing links will be removed and new links will be created in the joint table. If there exists links in the database to some of the entities intended to be saved by this method, they will be updated, not deleted.
Parameters
-
Cake\Datasource\EntityInterface
$entity
- an entity from the source table
- array
$options
optional [] - options to be passed to the save method in the target table
Returns
boolean|Cake\Datasource\EntityInterface
false if $entity could not be saved, otherwise it returns the saved entity
Throws
InvalidArgumentException
if the property representing the association in the parent entity cannot be traversed
See
Table::save()Cake\ORM\Association\BelongsToMany::replaceLinks()
saveStrategysource public
saveStrategy( string|null $strategy null )
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 null - the strategy name to be used
Returns
string
the strategy to be used for saving
Throws
InvalidArgumentException
if an invalid strategy name is passed
targetConditionssource protected
targetConditions( )
Returns filtered conditions that reference the target table.
Any string expressions, or expression objects will also be returned in this list.
Returns
mixed
Generally an array. If the conditions are not an array, the association conditions will be returned unmodified.
targetForeignKeysource public
targetForeignKey( string|null $key null )
Sets the name of the field representing the foreign key to the target table. If no parameters are passed current field is returned
Parameters
- string|null
$key
optional null - the key to be used to link both tables together
Returns
string
string
transformRowsource public
transformRow( array $row , string $nestKey , boolean $joined )
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
- boolean
$joined
- Whether or not the row is a result of a direct join with this association
Returns
array
array
Overrides
Cake\ORM\Association::transformRow()
unlinksource public
unlink( Cake\Datasource\EntityInterface $sourceEntity , array $targetEntities , array|boolean $options [] )
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.
Example:
$article->tags = [$tag1, $tag2, $tag3, $tag4]; $tags = [$tag1, $tag2, $tag3]; $articles->association('tags')->unlink($article, $tags);
$article->get('tags')
will contain only [$tag4]
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|boolean
$options
optional [] - list of options to be passed to the internal
delete
call, or aboolean
Throws
InvalidArgumentException
if non persisted entities are passed or if any of them is lacking a primary key value
Methods inherited from Cake\ORM\Association
__callsource public
__call( string $method , array $argument )
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
mixed
Throws
BadMethodCallException
\BadMethodCallException
__constructsource 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
__getsource public
__get( string $property )
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
\Cake\ORM\Association
Throws
RuntimeException
if no association with such name exists
__issetsource public
__isset( string $property )
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
boolean
true if the property exists
_appendFieldssource protected
_appendFields( Cake\ORM\Query $query , Cake\ORM\Query $surrogate , array $options )
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
_bindNewAssociationssource protected
_bindNewAssociations( Cake\ORM\Query $query , Cake\ORM\Query $surrogate , array $options )
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
_dispatchBeforeFindsource protected
_dispatchBeforeFind( Cake\ORM\Query $query )
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
_extractFindersource protected
_extractFinder( string|array $finderData )
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
array
_formatAssociationResultssource protected
_formatAssociationResults( Cake\ORM\Query $query , Cake\ORM\Query $surrogate , array $options )
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
bindingKeysource public
bindingKey( string|null $key null )
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 null - the table field to be used to link both tables together
Returns
string|array
string|array
canBeJoinedsource public
canBeJoined( array $options [] )
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
boolean
bool
cascadeCallbackssource public
cascadeCallbacks( boolean|null $cascadeCallbacks null )
Sets whether or not cascaded deletes should also fire callbacks. If no arguments are passed, the current configured value is returned
Parameters
- boolean|null
$cascadeCallbacks
optional null - cascade callbacks switch value
Returns
boolean
bool
defaultRowValuesource public
defaultRowValue( array $row , boolean $joined )
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
- The row to set a default on.
- boolean
$joined
- Whether or not the row is a result of a direct join with this association
Returns
array
array
deleteAllsource public
deleteAll( mixed $conditions )
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
boolean
Success Returns true if one or more rows are affected.
See
Cake\ORM\Table::deleteAll()
dependentsource public
dependent( boolean|null $dependent null )
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
- boolean|null
$dependent
optional null - Set the dependent mode. Use null to read the current state.
Returns
boolean
bool
eagerLoadersource abstract public
eagerLoader( array $options )
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
- The options for eager loading.
Returns
Closure
\Closure
findersource public
finder( string|null $finder null )
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 null - the finder name to use
Returns
string
string
foreignKeysource public
foreignKey( string|null $key null )
Sets the name of the field representing the foreign key to the target table. If no parameters are passed the current field is returned
Parameters
- string|null
$key
optional null - the key to be used to link both tables together
Returns
string|array
string|array
joinTypesource public
joinType( string $type null )
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
$type
optional null - the join type to be used (e.g. INNER)
Returns
string
string
namesource public
name( string|null $name null )
Sets the name for this association. If no argument is passed then the current configured name will be returned
Parameters
- string|null
$name
optional null - Name to be assigned
Returns
string
string
propertysource public
property( string|null $name null )
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 null - The name of the association property. Use null to read the current value.
Returns
string
string
sourcesource public
source( Cake\ORM\Table $table null )
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
$table
optional null - the instance to be assigned as source side
Returns
Cake\ORM\Table
\Cake\ORM\Table
strategysource public
strategy( string|null $name null )
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 null - The strategy type. Use null to read the current value.
Returns
string
string
Throws
InvalidArgumentException
When an invalid strategy is provided.
targetsource public
target( Cake\ORM\Table $table null )
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
$table
optional null - the instance to be assigned as target side
Returns
Cake\ORM\Table
\Cake\ORM\Table
updateAllsource public
updateAll( array $fields , mixed $conditions )
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
boolean
Success Returns true if one or more rows are affected.
See
Cake\ORM\Table::updateAll()
Methods used from Cake\ORM\Association\ExternalAssociationTrait
_defaultOptionssource protected
_defaultOptions( )
Returns the default options to use for the eagerLoader
Returns
array
array
_externalOptionssource protected
_externalOptions( array $opts )
Parse extra options passed in the constructor.
Parameters
- array
$opts
- original list of options passed in constructor
canBeJoinedsource public
canBeJoined( array $options [] )
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
boolean
if the 'matching' key in $option is true then this function will return true, false otherwise
Overrides
Cake\ORM\Association::canBeJoined()
defaultRowValuesource public
defaultRowValue( mixed $row , mixed $joined )
Overrides
Cake\ORM\Association::defaultRowValue()
foreignKeysource public
foreignKey( string|null $key null )
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 null - the key to be used to link both tables together
Returns
string
string
Overrides
Cake\ORM\Association::foreignKey()
sortsource public
sort( mixed $sort null )
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 null - A find() compatible order clause
Returns
mixed
mixed
Methods used from Cake\ORM\Association\SelectableAssociationTrait
_addFilteringConditionsource protected
_addFilteringCondition( Cake\ORM\Query $query , string|array $key , mixed $filter )
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
\Cake\ORM\Query
_addFilteringJoinsource public
_addFilteringJoin( Cake\ORM\Query $query , string $key , Cake\ORM\Query $subquery )
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
\Cake\ORM\Query
_buildBaseQuerysource protected
_buildBaseQuery( array $options )
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
\Cake\ORM\Query
Throws
InvalidArgumentException
When a key is required for associations but not selected.
_buildSubquerysource protected
_buildSubquery( Cake\ORM\Query $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
\Cake\ORM\Query
_createTupleConditionsource protected
_createTupleCondition( Cake\ORM\Query $query , array $keys , mixed $filter , string $operator )
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
\Cake\Database\Expression\TupleComparison
_multiKeysInjectorsource protected
_multiKeysInjector( array $resultMap , array $sourceKeys , string $nestKey )
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
\Closure
_resultInjectorsource protected
_resultInjector( Cake\ORM\Query $fetchQuery , array $resultMap , array $options )
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
\Closure
_subqueryFieldssource protected
_subqueryFields( Cake\ORM\Query $query )
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.
eagerLoadersource public
eagerLoader( array $options )
requiresKeyssource public
requiresKeys( array $options [] )
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
boolean
true if a list of keys will be required
Methods used from Cake\Core\ConventionsTrait
_camelizesource protected
_camelize( string $name )
Creates a camelized version of $name
Parameters
- string
$name
- name
Returns
string
Camelized name
_entityNamesource protected
_entityName( string $name )
Creates the proper entity name (singular) for the specified name
Parameters
- string
$name
- Name
Returns
string
Camelized and plural model name
_fixtureNamesource protected
_fixtureName( string $name )
Creates a fixture name
Parameters
- string
$name
- Model class name
Returns
string
Singular model key
_modelKeysource protected
_modelKey( string $name )
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
_modelNameFromKeysource protected
_modelNameFromKey( string $key )
Creates the proper model name from a foreign key
Parameters
- string
$key
- Foreign key
Returns
string
Model name
_pluginNamespacesource protected
_pluginNamespace( string $pluginName )
Return plugin's namespace
Parameters
- string
$pluginName
- Plugin name
Returns
string
Plugin's namespace
_pluginPathsource protected
_pluginPath( string $pluginName )
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.
_pluralHumanNamesource protected
_pluralHumanName( string $name )
Creates the plural human name used in views
Parameters
- string
$name
- Controller name
Returns
string
Plural human name
_singularHumanNamesource protected
_singularHumanName( string $name )
Creates the singular human name used in views
Parameters
- string
$name
- Controller name
Returns
string
Singular human name
_singularNamesource protected
_singularName( string $name )
Creates the singular name for use in views.
Parameters
- string
$name
- Name to use
Returns
string
Variable name
_variableNamesource protected
_variableName( string $name )
Creates the plural variable name for views
Parameters
- string
$name
- Name to use
Returns
string
Plural name for views
Methods used from Cake\ORM\Locator\LocatorAwareTrait
tableLocatorsource public
tableLocator( Cake\ORM\Locator\LocatorInterface $tableLocator null )
Sets the table locator. If no parameters are passed, it will return the currently used locator.
Parameters
-
Cake\ORM\Locator\LocatorInterface
$tableLocator
optional null - LocatorInterface instance.
Returns
Cake\ORM\Locator\LocatorInterface
\Cake\ORM\Locator\LocatorInterface
Constants summary
string | SAVE_APPEND Saving strategy that will only append to the links set | 'append' |
string | SAVE_REPLACE Saving strategy that will replace the links with the provided set | 'replace' |
Constants inherited from Cake\ORM\Association
MANY_TO_MANY, MANY_TO_ONE, ONE_TO_MANY, ONE_TO_ONE, STRATEGY_JOIN, STRATEGY_SELECT, STRATEGY_SUBQUERY |
Properties summary
Properties inherited from Cake\ORM\Association
$_bindingKeysource
protected string|array
The field name in the owning side table that is used to match with the foreignKey
$_cascadeCallbackssource
protected string
Whether or not cascaded deletes should also fire callbacks.
false
$_conditionssource
protected array
A list of conditions to be always included when fetching records from the target association
[]
$_findersource
protected string
The default finder name to use for fetching rows from the target table
'all'
$_foreignKeysource
protected string|array
The name of the field representing the foreign key to the table to load
$_namesource
protected string
Name given to the association, it usually represents the alias assigned to the target associated table
$_propertyNamesource
protected string
The property name that should be filled with data from the target table in the source table record.
Properties used from Cake\ORM\Locator\LocatorAwareTrait
Properties used from Cake\ORM\Association\ExternalAssociationTrait
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http://api.cakephp.org/3.1/class-Cake.ORM.Association.BelongsToMany.html