Symfony 4 : doctrine, relationships and twig


Symfony 4 : doctrine, relationships and twig



I'm currently working on my first symfony 4 project and I'm having a problem with my twig templating.
First of all here is a UML diagram of my created objects.



UML



And my layout should look sorta like this :



Layout



Here are my entities :



Region


<?php

namespace AppEntity;

use DoctrineCommonCollectionsArrayCollection;
use DoctrineCommonCollectionsCollection;
use DoctrineORMMapping as ORM;

/**
* @ORMEntity(repositoryClass="AppRepositoryRegionRepository")
*/
class Region
{
/**
* @ORMId()
* @ORMGeneratedValue()
* @ORMColumn(type="integer")
*/
private $id;

/**
* @ORMColumn(type="string", length=255)
*/
private $designation;

/**
* @ORMOneToMany(targetEntity="AppEntityCountry", mappedBy="region", orphanRemoval=true)
*/
private $countries;

/**
* @ORMColumn(type="string", length=255)
*/
private $initials;

public function __construct()
{
$this->countries = new ArrayCollection();
}

public function getId()
{
return $this->id;
}

public function getDesignation(): ?string
{
return $this->designation;
}

public function setDesignation(string $designation): self
{
$this->designation = $designation;

return $this;
}

/**
* @return Collection|Country
*/
public function getCountries(): Collection
{
return $this->countries;
}

public function addCountry(Country $country): self
{
if (!$this->countries->contains($country)) {
$this->countries = $country;
$country->setRegion($this);
}

return $this;
}

public function removeCountry(Country $country): self
{
if ($this->countries->contains($country)) {
$this->countries->removeElement($country);
// set the owning side to null (unless already changed)
if ($country->getRegion() === $this) {
$country->setRegion(null);
}
}

return $this;
}

public function getInitials(): ?string
{
return $this->initials;
}

public function setInitials(string $initials): self
{
$this->initials = $initials;

return $this;
}

public function __toString()
{
return $this->getInitials();
}


}



Continent


<?php

namespace AppEntity;

use DoctrineCommonCollectionsArrayCollection;
use DoctrineCommonCollectionsCollection;
use DoctrineORMMapping as ORM;

/**
* @ORMEntity(repositoryClass="AppRepositoryContinentRepository")
*/
class Continent
{
/**
* @ORMId()
* @ORMGeneratedValue()
* @ORMColumn(type="integer")
*/
private $id;

/**
* @ORMColumn(type="string", length=255)
*/
private $name;

/**
* @ORMColumn(type="string", length=255)
*/
private $code;

/**
* @ORMOneToMany(targetEntity="AppEntityCountry", mappedBy="continent", orphanRemoval=true)
*/
private $countries;

public function __construct()
{
$this->countries = new ArrayCollection();
}

public function getId()
{
return $this->id;
}

public function getName(): ?string
{
return $this->name;
}

public function setName(string $name): self
{
$this->name = $name;

return $this;
}

public function getCode(): ?string
{
return $this->code;
}

public function setCode(string $code): self
{
$this->code = $code;

return $this;
}

/**
* @return Collection|Country
*/
public function getCountries(): Collection
{
return $this->countries;
}

public function addCountry(Country $country): self
{
if (!$this->countries->contains($country)) {
$this->countries = $country;
$country->setContinent($this);
}

return $this;
}

public function removeCountry(Country $country): self
{
if ($this->countries->contains($country)) {
$this->countries->removeElement($country);
// set the owning side to null (unless already changed)
if ($country->getContinent() === $this) {
$country->setContinent(null);
}
}

return $this;
}

public function __toString()
{
return $this->getName();
}
}



Country


<?php

namespace AppEntity;

use DoctrineCommonCollectionsArrayCollection;
use DoctrineCommonCollectionsCollection;
use DoctrineORMMapping as ORM;

/**
* @ORMEntity(repositoryClass="AppRepositoryCountryRepository")
*/
class Country
{
/**
* @ORMId()
* @ORMGeneratedValue()
* @ORMColumn(type="integer")
*/
private $id;

/**
* @ORMColumn(type="string", length=255)
*/
private $name;

/**
* @ORMColumn(type="string", length=255)
*/
private $iso;

/**
* @ORMManyToOne(targetEntity="AppEntityRegion", inversedBy="countries")
* @ORMJoinColumn(name="region_id", referencedColumnName="id")
*/
private $region;

/**
* @ORMOneToMany(targetEntity="AppEntityDocument", mappedBy="country", orphanRemoval=true)
*/
private $documents;

/**
* @ORMManyToOne(targetEntity="AppEntityContinent", inversedBy="countries")
* @ORMJoinColumn(name="continent_id", referencedColumnName="id")
*/
private $continent;

public function __construct()
{
$this->documents = new ArrayCollection();
}

public function getId()
{
return $this->id;
}

public function getName(): ?string
{
return $this->name;
}

public function setName(string $name): self
{
$this->name = $name;

return $this;
}

public function getIso(): ?string
{
return $this->iso;
}

public function setIso(string $iso): self
{
$this->iso = $iso;

return $this;
}

public function getRegion(): ?Region
{
return $this->region;
}

public function setRegion(?Region $region): self
{
$this->region = $region;

return $this;
}

/**
* @return Collection|Document
*/
public function getDocuments(): Collection
{
return $this->documents;
}

public function addDocument(Document $document): self
{
if (!$this->documents->contains($document)) {
$this->documents = $document;
$document->setCountry($this);
}

return $this;
}

public function removeDocument(Document $document): self
{
if ($this->documents->contains($document)) {
$this->documents->removeElement($document);
// set the owning side to null (unless already changed)
if ($document->getCountry() === $this) {
$document->setCountry(null);
}
}

return $this;
}

public function getContinent(): ?Continent
{
return $this->continent;
}

public function setContinent(?Continent $continent): self
{
$this->continent = $continent;

return $this;
}
}



Document


<?php

namespace AppEntity;

use DoctrineORMMapping as ORM;
use VichUploaderBundleMappingAnnotation as Vich;
use SymfonyComponentHttpFoundationFileFile;

/**
* @ORMEntity(repositoryClass="AppRepositoryDocumentRepository")
* @VichUploadable()
*/
class Document
{
/**
* @ORMId()
* @ORMGeneratedValue()
* @ORMColumn(type="integer")
*/
private $id;

/**
* @ORMManyToOne(targetEntity="AppEntityCountry", inversedBy="documents")
* @ORMJoinColumn(name="country_id", referencedColumnName="id")
*/
private $country;

/**
* @ORMColumn(type="string")
*/
private $level;

/**
* NOTE: This is not a mapped field of entity metadata, just a simple property.
*
* @VichUploadableField(mapping="country_document", fileNameProperty="documentName", size="documentSize")
*
* @var File
*/
private $documentFile;

/**
* @ORMColumn(type="string", length=255)
*
* @var string
*/
private $documentName;

/**
* @ORMColumn(type="integer")
*
* @var integer
*/
private $documentSize;

/**
* @ORMColumn(type="datetime")
*
* @var DateTime
*/
private $updatedAt;

public function getId()
{
return $this->id;
}

public function getCountry(): ?Country
{
return $this->country;
}

public function setCountry(?Country $country): self
{
$this->country = $country;

return $this;
}

public function getLevel(): ?int
{
return $this->level;
}

public function setLevel(int $level): self
{
$this->level = $level;

return $this;
}

public function setDocumentFile(?File $document = null): void
{
$this->documentFile = $document;

if (null !== $document) {
// It is required that at least one field changes if you are using doctrine
// otherwise the event listeners won't be called and the file is lost
$this->updatedAt = new DateTimeImmutable();
}
}

public function getDocumentFile(): ?File
{
return $this->documentFile;
}

public function setDocumentName(?string $documentName): void
{
$this->documentName = $documentName;
}

public function getDocumentName(): ?string
{
return $this->documentName;
}

public function setDocumentSize(?int $documentSize): void
{
$this->documentSize = $documentSize;
}

public function getDocumentSize(): ?int
{
return $this->documentSize;
}

}



I have 4 regions. These regions each have multiple countries who are affiliated to a continent and have 2 documents attributed to them.
How should I proceed to get the layout I want ?





Too broad, we don't know how your entities are connected codewise
– DarkBee
Jun 29 at 7:21





Yeah I realized that this morning. Entities code added !
– Orinthia
Jun 29 at 8:40









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