How to get Woocommerce Variation ID?

I've already had this code on functions.php

This code is to add a new field on each product variation to have datetime input field, so variations would automatically expired when the current date is past the input date.

// Add Variation Settings
add_action( 'woocommerce_product_after_variable_attributes', 'variation_settings_fields', 10, 3 );

// Save Variation Settings
add_action( 'woocommerce_save_product_variation', 'save_variation_settings_fields', 10, 2 );

//Create New fields for Variations
function variation_settings_fields( $loop, $variation_data, $variation ) {
// Text Field
woocommerce_wp_text_input(
array(
'id' => '_text_field_date_expire[' . $variation->ID . ']',
'class' => '_text_field_date_expire',
'type' => 'datetime-local',
'label' => __( 'Date of Expiration', 'woocommerce' ),
'placeholder' => '',
'desc_tip' => 'true',
'description' => __( 'Expiration of Each Product Variation', 'woocommerce' ),
'value' => get_post_meta( $variation->ID, '_text_field_date_expire', true )
)
);
}


//Save New Fields for Variation
function save_variation_settings_fields( $post_id ) {
// Text Field
$text_field = $_POST['_text_field_date_expire'][ $post_id ];
if( ! empty( $text_field ) ) {
update_post_meta( $post_id, '_text_field_date_expire', esc_attr( $text_field ) );
}
}

This is to add a new field on each variation of Wocommerce.

What I am trying to do is to get each "_text_field_date_expire" meta so I could delete expired variation for each of the products..

How do I get each woocommerce variation ID on functions.php so I could add a rule that it will expire when it is already past the current date right now?

var_dump(get_post_meta( $variation_id , '_text_field_date_expire', true ));

This code is the one that I will use to get the datetime field, but not sure how I could get each `$variation_id` field?

Try this one:

$args = array(
'post_type' => 'product_variation',
'post_status' => array( 'private', 'publish' ),
'numberposts' => -1,
'orderby' => 'menu_order',
'order' => 'asc',
'post_parent' => get_the_ID() // get parent post-ID
);
$variations = get_posts( $args );

foreach ( $variations as $variation ) {

// get variation ID
$variation_ID = $variation->ID;

// get variations meta
$product_variation = new WC_Product_Variation( $variation_ID );

// get variation featured image
$variation_image = $product_variation->get_image();

// get variation price
$variation_price = $product_variation->get_price_html();

get_post_meta( $variation_ID , '_text_field_date_expire', true );

}

Hope this will helps you. For more information:

* [How To Get Product Variations & Meta – WooCommerce
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* [How to get the Variation ID in a Woocommerce product](

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In WooCommerce 3+, it's **`$variation->get_id()`** from `$variation` function argument, which is an instance of the [`WC_Product_Variation`][1].

The method `get_id()` is inherited from [`WC_Data`][2] class.

So in your code it should be instead:

'id' => '_text_field_date_expire[' . $variation->get_id() . ']',

> Since WooCommerce 3, All `WC_Product` properties can't be accessed directly. Instead, you need to use the available methods.

----

Also in your hooked function `save_variation_settings_fields()` you are declaring 2 arguments, so **there is one missing**. It should be:

//Save New Fields for Variation// Save Variation Settings
add_action( 'woocommerce_save_product_variation', 'save_variation_settings_fields', 10, 2 );

function save_variation_settings_fields( $variation_id, $i ) {
// Text Field
$text_field = $_POST['_text_field_date_expire'][ $variation_id ];
if( ! empty( $text_field ) ) {
update_post_meta( $variation_id, '_text_field_date_expire', esc_attr( $text_field ) );
}
}

See [the source code for **`woocommerce_save_product_variation`** action hook][3]


[1]:

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[2]:

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[3]:

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