| 1 | <?php |
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| 12 | trait TimestampableEntity |
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| 13 | { |
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| 14 | //<editor-fold desc="Fields"> |
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| 15 | /** |
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| 16 | * @var \DateTime |
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| 17 | * @\Gedmo\Mapping\Annotation\Timestampable(on="create") |
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| 18 | * @ORM\Column(type="datetime") |
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| 19 | */ |
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| 20 | private $createdAt; |
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| 21 | |||
| 22 | /** |
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| 23 | * @var \DateTime |
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| 24 | * @\Gedmo\Mapping\Annotation\Timestampable(on="update") |
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| 25 | * @ORM\Column(type="datetime") |
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| 26 | */ |
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| 27 | private $updatedAt; |
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| 28 | |||
| 29 | //</editor-fold desc="Fields"> |
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| 30 | |||
| 31 | //<editor-fold desc="Public Methods"> |
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| 32 | /** |
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| 33 | * @return \DateTime |
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| 34 | */ |
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| 35 | public function getCreatedAt(): \DateTime |
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| 39 | |||
| 40 | /** |
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| 41 | * @return \DateTime |
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| 42 | */ |
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| 43 | public function getUpdatedAt(): \DateTime |
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| 47 | |||
| 48 | /** |
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| 49 | * @param \DateTime $createdAt |
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| 50 | * @return $this|TimestampableEntity |
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| 51 | */ |
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| 52 | public function setCreatedAt(\DateTime $createdAt) |
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| 57 | |||
| 58 | /** |
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| 59 | * @param \DateTime $updatedAt |
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| 60 | * @return $this|TimestampableEntity |
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| 61 | */ |
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| 62 | public function setUpdatedAt(\DateTime $updatedAt) |
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| 67 | //</editor-fold desc="Public Methods"> |
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| 68 | } |
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| 69 |
In PHP traits cannot be used for type-hinting as they do not define a well-defined structure. This is because any class that uses a trait can rename that trait’s methods.
If you would like to return an object that has a guaranteed set of methods, you could create a companion interface that lists these methods explicitly.