How to get a product variant field (not attribute) value?

Koala Yeung

10/10/22, 2:58 AM

I have created a product variant with 1 attribute (say "Subscription Plan" or attribute_sub_plan) and 1 field (say "Number of Issues" or field_num_issues). The attribute was for human readability while the field was an integer for internal use.

The attribute was added to the variation type when created, while the field was added to the variation type on the "Add field" button after creation. I can see both fields in the Product Variant interface.

I can easily get the attribute value like this:

$plan_name = $variation->getAttributeValue('attribute_sub_plan')->getName();

However, I cannot get the field value like I usually can with other entities:

$num_issues = $variation->get('field_num_issues')->value;

As a matter of fact, I cannot even get the field "field_num_issues". It gives me this error:

InvalidArgumentException with message 'Field field_num_issues is unknown.'

Do you have any idea how I can get the value?

0 + 3

entities

commerce

tonytheferg

10/10/22, 4:14 AM

Is there a typo in your code? There is one in the error message.

Koala Yeung

10/10/22, 4:16 AM

@tonytheferg; Thanks. But no. The typo was only in my question. I slightly changed the field names here from my original code. In the real code, I use copy-and-paste to make sure I did not mis-type anything.

No Sssweat

10/10/22, 4:33 AM

`$variation->get($field_name)` is legit. So double check the field machine name, I bet it's wrong.

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: How to get a product variant field (not attribute) value?

TH: วิธีรับค่าฟิลด์ตัวเลือกสินค้า (ไม่ใช่แอตทริบิวต์)

RO: Cum să obțineți valoarea unui câmp (nu un atribut) pentru varianta de produs?

RU: Как получить значение поля варианта продукта (не атрибута)?

VI: Làm cách nào để nhận giá trị trường biến thể sản phẩm (không phải thuộc tính)?

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