How to update multiple rows of a model?

Question

I want to update multiple rows of a specific model at once, so I have bellow code and data structure. Whenever I tried to update the record every time record gets inserted instead of update.

in my controller

function products($cat_id = null){
   $products = $this->Products->find()->where(['category_id' => $cat_id]);

   $productPatch = $this->Products->patchEntities($products, $this->request->data);

   $this->Products->saveMany($productPatch);     //Always creates new record
}

Here is the data in the different array,

In $products  
   [0] => Array
        (
            [id] => 13              //product_id
            [category_id] => 17
            [slug] => onScreen
            [status_id] => 1
        )

    [1] => Array
        (
            [id] => 14
            [category_id] => 17
            [slug] => pdf
            [status_id] => 1
        )

In $this->request->data


  [0] => Array
    (
        [id] => 13              //product_id
        [category_id] => 17
        [slug] => onScreen
        [status_id] => 2          //Data changes here
    )

    [1] => Array
        (
            [id] => 14
            [category_id] => 17
            [slug] => pdf
            [status_id] => 2          //Data changes here
        )

Answer 1

You can use updateAll() method to update data in Bulk :

$this->modelClass->updateAll(
    ['published' => true], // fields
    ['published' => false]); // conditions