php - WooCommerce - 提交后检索选择框的正确数据值

Question

我正在使用 Woocommerce，并且在管理面板中构建了一个选择框。我通过平面文件在选择框中填充信息。 一切正常(几乎)。

我坚持的部分是在我选择我想要的“选择”和保存我得到数组 $key 位置而不是实际 $值。我很接近，但我不能把我的手指放在上面。

更新:这是我的完整代码:

function woo_add_custom_admin_product_tab() {
?>
    <li class="custom_tab"><a href="#custom_tab_data"><?php _e('Additional Information', 'woocommerce'); ?></a></li>
<?php
}
add_action( 'woocommerce_product_write_panel_tabs', 'woo_add_custom_admin_product_tab' );


function woo_add_custom_admin_fields() {    
    global $woocommerce, $post;

    echo '<div id="custom_tab_data" class="panel woocommerce_options_panel">';
    echo '<div class="options_group">';

    // Select - Breed1
    if (file_exists ( plugin_dir_path(__FILE__) .'breed.txt')) {
        $breedData = file_get_contents ( plugin_dir_path(__FILE__) .'breed.txt');
        $breedArray = explode ("\n", $breedData);
    }

    woocommerce_wp_select(array(
        'id'      => '_select_breed1',
        'label'   => __( 'Select Primary Breed', 'woocommerce' ),
        'desc_tip'    => 'true',
        'description' => __( 'Select the primary breed of the pet.', 'woocommerce' ),
        'options' => $breedArray
    ) );
    echo '</div>';
    echo '</div>';
}
add_action( 'woocommerce_product_write_panels', 'woo_add_custom_admin_fields' );


// Save Fields;
function woo_add_custom_general_fields_save( $post_id ){
    // Text Field - Pet Name
    $woocommerce_text_field = $_POST['_pet_name'];
    if( !empty( $woocommerce_text_field ) )
       update_post_meta( $post_id, '_pet_name', esc_attr( $woocommerce_text_field ) );

    // Select Field - Breed
    $woocommerce_select = $_POST['_select_breed1'];
    if( !empty( $woocommerce_select ) )
        update_post_meta( $post_id, '_select_breed1', esc_attr( $woocommerce_select ) );
}
add_action( 'woocommerce_process_product_meta', 'woo_add_custom_general_fields_save' );

我的 breed.txt 文件包含 3 行(项目):

Please Select a breed...
Abyssinian
Affenpinscher

生成的数组如下所示:

Array ( 
    [0] => Please Select a breed... 
    [1] => Abyssinian 
    [2] => Affenpinscher 
)

例如，当我选择 "Affenpinscher" 时，我得到的值是 "2" 而不是“Affenpinscher” .

我做错了什么？我该如何解决这个问题？

谢谢

Answer 1

— 已更新— (已测试且有效)

这绝对是下拉选择器的正常行为 <select> 。您只需在代码中添加一些小东西，使其以不同的方式工作。

The changes are:
— first, when the array of values from the external text file is available, I store it in wordpress options.
— Second, In the last saving function, I get the stored array and with the selected key that I get from $_POST['_select_breed_key1'];, I retrieve the corresponding value that I store in a new entry (new row in wp_postmeta table.

//Create the fields
function woo_add_custom_admin_fields() {    
    global $woocommerce, $post;

    echo '<div id="custom_tab_data" class="panel woocommerce_options_panel">';
    echo '<div class="options_group">';

    // Select - Breed1
    if (file_exists ( plugin_dir_path(__FILE__) .'breed.txt')) {
        $breedData = file_get_contents ( plugin_dir_path(__FILE__) .'breed.txt');
        $breedArray = explode ("\n", $breedData);

        //Storing the array in wp_options table
        if( get_option( 'wc_product_add_info_tab' ) )
            update_option( 'wc_product_add_info_tab', $breedArray );
        else
            add_option( 'wc_product_add_info_tab', $breedArray );
    }

    woocommerce_wp_select( array(
        'id'      => '_select_breed_key1',
        'label'   => __( 'Select Primary Breed', 'woocommerce' ),
        'desc_tip'    => 'true',
        'description' => __( 'Select the primary breed of the pet.', 'woocommerce' ),
        'options' => $breedArray
    ) );

    echo '</div>';
    echo '</div>';
}
add_action( 'woocommerce_product_write_panels', 'woo_add_custom_admin_fields' );


// Save Created Fields;
function woo_add_custom_general_fields_save( $post_id ){

    // Select Field - Breed
    $wc_select = $_POST['_select_breed_key1'];
    if( !empty( $wc_select ) )
        update_post_meta( $post_id, '_select_breed_key1', esc_attr( $wc_select ) );

    // Saving the corresponding value (from "$wc_select" selected key) to database
    if(get_option('wc_product_add_info_tab')) {

        // Getting the array
        $breed_arr = get_option('wc_product_add_info_tab');

        // Saving the corresponding value
        update_post_meta( $post_id, '_select_breed_value1', $breed_arr[$wc_select] );
    }
}
add_action( 'woocommerce_process_product_meta', 'woo_add_custom_general_fields_save' );

You have now in in wp_postmeta table for a Product ID (post_id), 2 meta_keys:
- '_select_breed_key1' that stores the selected key
- '_select_breed_value1' that stores the corresponding value

用法举例(获取这个值):

<?php

// Third parameter is set to "true" as it is a string (Not an array) 
$breed_value1 = get_post_meta( $post_id, '_select_breed_value1', true );
echo $breed_value1;

?>