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I have two variants adding data using Model. Which variant is more rignt ?

Especially I want to ask about this $slider->setDataChanges(true);in first variant because I must set up _hasDataChanges = true if I want to save data.

1.Variant enter image description here

2.Variant

enter image description here

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As per Magento standard, the second option is right to add a new record to an entity using the repository.

If you want to update exist then you have to load the record by a primary key using getById()

$slider = $this->sliderRepository->getById('PKID');

$this->sliderRepository->save($slider);
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