Migrate Gedmo to KnpLabs

• 6 min
• Mon, Jan 6
• X comments
• Edit Post

Pick behavior your want to migrate from Gedmo to KnpLabs:

• 1. Timestampable
• 2. Sluggable
• 3. Tree
• 4. Translatable
• 5. Blameable
• 6. Loggable
• 7. SoftDeletable

If you use other Gedmo behavior that is not listed here, you might request or better add it to KnpLabs repository via pull-request. I assure you I'll provide stable maintenance support for KnpLabs package. It's not that hard with CI on steroids it has now.

1. Migrate Timestampable

Gedmo

<?php

declare(strict_types=1);

namespace App\Entity;

use Doctrine\ORM\Mapping as ORM;
use Gedmo\Timestampable\Traits\TimestampableEntity;

/**
 * @ORM\Entity
 */
class Meetup
{
    use TimestampableEntity;
}

↓

KnpLabs

• Replace trait with Knp\DoctrineBehaviors\Model\Timestampable\TimestampableTrait
• Add Knp\DoctrineBehaviors\Contract\Entity\TimestampableInterface interface

<?php

declare(strict_types=1);

namespace App\Entity;

use Doctrine\ORM\Mapping as ORM;
use Knp\DoctrineBehaviors\Model\Timestampable\TimestampableTrait;
use Knp\DoctrineBehaviors\Contract\Entity\TimestampableInterface;

/**
 * @ORM\Entity
 */
class Meetup implements TimestampableInterface
{
    use TimestampableTrait;
}

2. Migrate Sluggable

Gedmo

<?php

declare(strict_types=1);

namespace App\Entity;

use Doctrine\ORM\Mapping as ORM;
use Gedmo\Mapping\Annotation as Gedmo;

/**
 * @ORM\Entity
 */
class Meetup
{
    /**
     * @Gedmo\Slug(fields={"name"})
     */
    private $slug;

    public function getSlug(): ?string
    {
        return $this->slug;
    }

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

↓

KnpLabs

• Add Knp\DoctrineBehaviors\Model\Sluggable\SluggableTrait trait

• Add Knp\DoctrineBehaviors\Contract\Entity\SluggableInterface interface

• Remove getSlug()/setSlug() method that is already in trait

• Replace * @Gedmo\Slug(fields={"name"}) with getSluggableFields() method that contains fields

  E.g., from:

  use Gedmo\Mapping\Annotation as Gedmo;
  
  // ...
  
  /**
   * @Gedmo\Slug(fields={"name", "surname"})
   */
  private $slug;

  to

  
  /**
   * @return string[]
   */
  public function getSluggableFields(): array
  {
      return ['name', 'surname'];
  }

In full code:

<?php

declare(strict_types=1);

namespace App\Entity;

use Doctrine\ORM\Mapping as ORM;
use Knp\DoctrineBehaviors\Model\Sluggable\SluggableTrait;
use Knp\DoctrineBehaviors\Contract\Entity\SluggableInterface;

/**
 * @ORM\Entity
 */
class Category implements SluggableInterface
{
    use SluggableTrait;

    /**
     * @return string[]
     */
    public function getSluggableFields(): array
    {
        return ['name'];
    }
}

3. Migrate Tree

This one will be tricky, because:

• Gedmo supports nested-set, closure-table and materialized-path.
• KnpLabs currently supports materialized path

So if you're using anything but materialized path in Gedmo, you'll have to migrate PHP code (see below) + migrate your database data to materialized path (write your migration or Google one).

The PHP migration looks like this:

Gedmo

<?php

declare(strict_types=1);

namespace App\Entity;

use Doctrine\ORM\Mapping as ORM;
use Doctrine\Common\Collections\Collection;
use Gedmo\Mapping\Annotation as Gedmo;

/**
 * @ORM\Entity
 * @Gedmo\Tree(type="nested")
 */
class Category
{
    /**
     * @Gedmo\TreeLeft
     * @ORM\Column(name="lft", type="integer")
     * @var int
     */
    private $lft;

    /**
     * @Gedmo\TreeRight
     * @ORM\Column(name="rgt", type="integer")
     * @var int
     */
    private $rgt;

    /**
     * @Gedmo\TreeLevel
     * @ORM\Column(name="lvl", type="integer")
     * @var int
     */
    private $lvl;

    /**
     * @Gedmo\TreeRoot
     * @ORM\ManyToOne(targetEntity="Category")
     * @ORM\JoinColumn(name="tree_root", referencedColumnName="id", onDelete="CASCADE")
     * @var Category
     */
    private $root;

    /**
     * @Gedmo\TreeParent
     * @ORM\ManyToOne(targetEntity="Category", inversedBy="children")
     * @ORM\JoinColumn(name="parent_id", referencedColumnName="id", onDelete="CASCADE")
     * @var Category
     */
    private $parent;

    /**
     * @ORM\OneToMany(targetEntity="Category", mappedBy="parent")
     * @var Category[]|Collection
     */
    private $children;

    public function getRoot(): self
    {
        return $this->root;
    }

    public function setParent(self $category): void
    {
        $this->parent = $category;
    }

    public function getParent(): self
    {
        return $this->parent;
    }
}

↓

KnpLabs

• Add Knp\DoctrineBehaviors\Model\Tree\TreeNodeTrait trait
• Add Knp\DoctrineBehaviors\Contract\Entity\TreeNodeInterface interface
• Remove all tree related properties and methods, since they're in trait now
• Remove Gedmo annotations

<?php

declare(strict_types=1);

namespace App\Entity;

use Doctrine\ORM\Mapping as ORM;
use Doctrine\Common\Collections\Collection;
use Knp\DoctrineBehaviors\Contract\Entity\TreeNodeInterface;
use Knp\DoctrineBehaviors\Model\Tree\TreeNodeTrait;

/**
 * @ORM\Entity
 */
class Category implements TreeNodeInterface
{
    use TreeNodeTrait;
}

4. Migrate Translatable

What about Performance?

I recall picking the behavior package for new Lekarna.cz 6 years ago. I was young, and a quantity was more than quality to me, so I was leaning towards Gedmo since it had more downloads.

But it's performance surprised me. Why? The translated item had 1:many dependency on translation table, so for every single item, it joined an X extra lines forever single translated column.

So even if you use Symfony 4 and everything works well for you, consider comparing performance with KnpLabs translations. Who knows, it might get your multi-lingual application 10x faster.

Gedmo

<?php

declare(strict_types=1);

namespace App\Entity;

use Gedmo\Mapping\Annotation as Gedmo;
use Doctrine\ORM\Mapping as ORM;
use Gedmo\Translatable\Translatable;

/**
 * @ORM\Entity
 */
class Category implements Translatable
{
    /**
     * @Gedmo\Translatable
     * @ORM\Column(length=128)
     */
    private $title;

    /**
     * @Gedmo\Locale
     */
    private $locale;

    public function setTitle($title)
    {
        $this->title = $title;
    }

    public function getTitle()
    {
        return $this->title;
    }

    public function setTranslatableLocale($locale)
    {
        $this->locale = $locale;
    }
}

↓

KnpLabs

• Replace interface with Knp\DoctrineBehaviors\Contract\Entity\TranslatableInterface
• Add Knp\DoctrineBehaviors\Model\Translatable\TranslatableTrait
• Remove all translated fields and locale methods from main entity
• Remove Gedmo annotations

<?php

declare(strict_types=1);

namespace App\Entity;

use Knp\DoctrineBehaviors\Model\Translatable\TranslatableTrait;
use Knp\DoctrineBehaviors\Contract\Entity\TranslatableInterface;

class Category implements TranslatableInterface
{
    use TranslatableTrait;
}

So, where is the title property we need to translate? Every translated property is in the new <entity>Translation class. This approach makes sure that the complexity of 1 item with dozens of translation stays 1:1 = it's super fast!

<?php

declare(strict_types=1);

namespace App\Entity;

use Knp\DoctrineBehaviors\Contract\Entity\TranslationInterface;
use Knp\DoctrineBehaviors\Model\Translatable\TranslationTrait;

class CategoryTranslation implements TranslationInterface
{
    use TranslationTrait;

    /**
     * @ORM\Column(length=128)
     */
    private $title;
}

In short:

• Translatable - the primary entity you use in your code
• Translation - the helper entity with translated items

Usage stays the same:

$category->getTitle();

That's all for the migration. Oh, you're still reading? Are you waiting for some easy solution to cover it all?

5. Migrate Blameable

Gedmo

<?php

declare(strict_types=1);

namespace App\Entity;

use Gedmo\Mapping\Annotation as Gedmo;
use Doctrine\ORM\Mapping as ORM;

/**
 * @ORM\Entity
 */
class Category
{
    /**
     * @Gedmo\Blameable(on="create")
     */
    private $createdBy;

    /**
     * @Gedmo\Blameable(on="update")
     */
    private $updatedBy;

    public function getCreatedBy()
    {
        return $this->createdBy;
    }

    public function getUpdatedBy()
    {
        return $this->updatedBy;
    }
}

↓

KnpLabs

• Add Knp\DoctrineBehaviors\Contract\Entity\BlameableInterface interface
• Add Knp\DoctrineBehaviors\Model\Blameable\BlameableTrait trait
• Remove Gedmo annotations

<?php

declare(strict_types=1);

namespace App\Entity;

use Doctrine\ORM\Mapping as ORM;
use Knp\DoctrineBehaviors\Contract\Entity\BlameableInterface;
use Knp\DoctrineBehaviors\Model\Blameable\BlameableTrait;

/**
 * @ORM\Entity
 */
class Category implements BlameableInterface
{
    use BlameableTrait;
}

6. Migrate Loggable

Gedmo

<?php

declare(strict_types=1);

namespace App\Entity;

use Gedmo\Mapping\Annotation as Gedmo;
use Doctrine\ORM\Mapping as ORM;

/**
 * @ORM\Entity
 * @Gedmo\Loggable
 */
class Category
{
    /**
     * @Gedmo\Versioned
     * @ORM\Column(name="title", type="string", length=8)
     */
    private $title;
}

↓

KnpLabs

• Add Knp\DoctrineBehaviors\Model\Loggable\LoggableTrait trait
• Add Knp\DoctrineBehaviors\Contract\Entity\LoggableInterface interface
• Remove Gedmo annotations

<?php

declare(strict_types=1);

namespace App\Entity;

use Doctrine\ORM\Mapping as ORM;
use Knp\DoctrineBehaviors\Model\Loggable\LoggableTrait;
use Knp\DoctrineBehaviors\Contract\Entity\LoggableInterface;

/**
 * @ORM\Entity
 */
class Category implements LoggableInterface
{
    use LoggableTrait;

    /**
     * @ORM\Column(name="title", type="string", length=8)
     */
    private $title;
}

7. Migrate SoftDeletable

Gedmo

<?php

declare(strict_types=1);

namespace App\Entity;

use Doctrine\ORM\Mapping as ORM;
use Gedmo\Mapping\Annotation as Gedmo;

/**
 * @Gedmo\SoftDeleteable(fieldName="deletedAt", timeAware=false, hardDelete=true)
 * @ORM\Entity
 */
class Category
{
    /**
     * @ORM\Column(name="deletedAt", type="datetime", nullable=true)
     */
    private $deletedAt;

    public function getDeletedAt()
    {
        return $this->deletedAt;
    }

    public function setDeletedAt($deletedAt)
    {
        $this->deletedAt = $deletedAt;
    }
}

↓

KnpLabs

• Add Knp\DoctrineBehaviors\Contract\Entity\SoftDeletableInterface interface
• Add Knp\DoctrineBehaviors\Model\SoftDeletable\SoftDeletableTrait trait
• Remove Gedmo annotations

<?php

declare(strict_types=1);

namespace App\Entity;

use Knp\DoctrineBehaviors\Contract\Entity\SoftDeletableInterface;
use Knp\DoctrineBehaviors\Model\SoftDeletable\SoftDeletableTrait;

class Category implements SoftDeletableInterface
{
    use SoftDeletableTrait;
}

Instant Upgrade what you Can

All right, for all the behaviors listed above, there is a Rector set:

composer require rector/rector --dev
vendor/bin/rector process src --set doctrine-gedmo-to-knplabs

Instant upgrades never cover the whole migration path - e.g., they lack database migrations - but they're are always saving you 80 % of boring work.

If anything breaks, create and issue on Github so you can enjoy fixed version soon.

Happy migration!