Doctrine rekurze nefunkcni matching

Zdravim,

narazil na takovy zvlastni problem, ktery bych si rad ujasnil.

Mam tabulky

country
locality (id, id_parent_locality, name)
city (id, id_locality)

a vysledek je treba v cr

cz(country) -> Ustecky kraj(lokalita) -> Okres teplice(lokaita) -> teplice(mesto)

A ted v localityEntity mam

/**
 * @var CountryEntity
 * @ORM\ManyToOne(targetEntity="CountryEntity", inversedBy="localities")
 * @ORM\JoinColumn(name="id_country", referencedColumnName="id", onDelete="CASCADE", nullable=false)
 */
private $country;

/**
 * @var LocalityEntity
 * @ORM\ManyToOne(targetEntity="LocalityEntity", inversedBy="sub_localities")
 * @ORM\JoinColumn(name="id_locality", referencedColumnName="id", onDelete="CASCADE", nullable=true)
 */
public $parent_locality;

/**
 * @var Collection
 * @ORM\OneToMany(targetEntity="LocalityEntity", mappedBy="parent_locality")
 */
private $sub_localities;

/**
 * @var Collection
 * @ORM\OneToMany(targetEntity="CityEntity", mappedBy="locality", cascade={"persist"})
 */
private $cities;

a v CountryEntity mam

/**
 * @var Collection
 * @ORM\OneToMany(targetEntity="LocalityEntity", mappedBy="country")
 */
private $localities;

Ted mi slo o to udelat si v CountryEntity metodu, ktera mi bude vracet nejake pocty. Takze napr. metodu, ktera vrati pocet lokalit v dane zemi, ktere uz nemaji zadny parent a pote pocet vsech mest v dane zemi pro vsechny lokality. Tak jsem napsal nasledujici v CountryEntity

/**
     * @return array
     */
    public function getLocalities($all = false)
    {
        if ($all) {
            return $this->localities->toArray();
        }

        $criteria = Criteria::create()->where(Criteria::expr()->isNull('parent_locality'));
        return $this->localities->matching($criteria)->toArray();
    }

    public function getCitiesCount()
    {
        $count = 0;

        /** @var LocalityEntity $localityEntity */
        foreach ($this->getLocalities(true) as $localityEntity) {
            $count += count($localityEntity->getCities());
        }

        return $count;
    }

Pri tomhle pouziti, vznikne problem kdyz v template iteruji zeme a nad kazdou si zavolam

{foreach $countries as $item}
 {foreach $item->getLocalities() as $locality}
.....
.....

vyhodi Cannot access private property App\Entity\LocalityEntity::$parent_locality
Co jsem pochopil, tak on si v matching hleda getter, a muj getter je getParent()

Takze matching upravim na

$criteria = Criteria::create()->where(Criteria::expr()->isNull('parent'));
        return $this->localities->matching($criteria)->toArray();

V tu chvily funguje spravne, ale jakmile si nactu detail nejake zeme a zavolam si v sablone

{foreach $country->getLocalities() as $item}

Vyhodi Unrecognized field: parent

Reseni jsou 2

• budto nastavit $parent_locality jako public
• prejmenovat getter na getParentLocality() a v matching nechat ‚parent_locality‘

Prejmenovat getter je to nejmensi, jen mi nejde do hlavy, co je to za chovani, to musi byt getter striktne pojmenovany jako nazev promenne ? Kdybych tam getter vubec nemel, tak to padne taky.

Diky za vysvetleni.

Editoval kleinpetr (7. 2. 2018 21:59)