Hi Ibasaw,
If I understand correctly you want entity A to have a collection of collections
of entity B.
I'm not sure what your use-case is, why you need something like this, but you
can solve it by introducing another entity:
SomeEntity <- OneToMany -> TemperatureCollection <- ManyToMany ->
Temperature
If implemented as fully bidirectional it looks like this:
class SomeEntity
{
/**
* @ORM\OneToMany(targetEntity="TemperatureCollection",
mappedBy="someEntity")
*/
protected $temperatureCollections;
}
class TemperatureCollection
{
/**
* @ORM\ManyToOne(targetEntity="SomeEntity",
inversedBy="temperatureCollections")
* @ORM\JoinColumn(name="some_entity_id", referencedColumnName="id")
*/
protected $someEntity;
/**
* @ORM\ManyToMany(targetEntity="Temperature",
inversedBy="temperatureCollections")
* @ORM\JoinTable(name="temperature_collections_temperatures",
* joinColumns={@ORM\JoinColumn(name="temperature_id",
referencedColumnName="id")},
*
inverseJoinColumns={@ORM\JoinColumn(name="temperature_collection_id",
referencedColumnName="id")}
* )
*/
protected $temperatures;
}
class Temperature
{
/**
* @ORM\ManyToMany(targetEntity="TemperatureCollection",
mappedBy="temperatures")
*/
private $temperatureCollections;
}
And if you need to share those TemperatureCollections between SomeEntities, you
could use a ManyToMany association (but this will make your object-graph quiet
complex):
SomeEntity <- ManyToMany -> TemperatureCollection <- ManyToMany ->
Temperature
--
Jasper N. Brouwer
(@jaspernbrouwer)
On 23 Jan 2014, at 11:18, ibasaw <[email protected]> wrote:
> hi,
>
> Don't know how to do this ?
>
> /**
> * @ORM\ManyToMany(targetEntity="Temperatures", cascade={"persist",
> "merge"}, mappedBy="temperatures")
> */
> protected $temperatures;
>
> /**
> * @ORM\ManyToMany(targetEntity="Temperatures", cascade={"persist",
> "merge"}, mappedBy="temperatures")
> */
> protected $temperatures2;
>
> /**
> * @ORM\ManyToMany(targetEntity="Temperatures", cascade={"persist",
> "merge"}, mappedBy="temperatures")
> */
> protected $temperatures3;
>
>
> thanks for your help
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