在Woocommerce中禁用编辑特定的管理员自定义字段 [英] Disable editing specific admin custom fields in Woocommerce

问题描述

我的库存选项卡中使用

---

更新:添加复选框以启用只读字段:

  add_action('woocommerce_product_options_stock_status'，'display_product_options_inventory_custom_fields'，20);函数display_product_options_inventory_custom_fields(){全球$ post;回声'</div>< div class ="options_group">';;//新的分隔部分//复选框woocommerce_wp_checkbox(array('id'=>'_enable_readonly'，'标签'=>__('启用只读字段'，'woocommerce')，'description'=>__('启用某些字段为只读'，'woocommerce')，'desc_tip'=>真的，))；//获取复选框的值$ checkbox = get_post_meta($ post-> ID，'_enable_readonly'，true);//我们根据复选框有条件地将字段属性设置为只读"$ readonly =空($ checkbox)吗?'':array('readonly'=>'readonly');//文字栏位1(条件为唯读)woocommerce_wp_text_input(array('id'=>'_text_field_ro1'，'type'=>'文本'，'标签'=>__('只读字段1'，'woocommerce')，'占位符'=>__('占位符文本1'，'woocommerce')，'description'=>__('自定义说明1:您的解释.'，'woocommerce')，'desc_tip'=>真的，'custom_attributes'=>$ readonly，//启用只读));//文字栏位2(条件为唯读)woocommerce_wp_text_input(array('id'=>'_text_field_ro2'，'type'=>'文本'，'标签'=>__('只读字段2'，'woocommerce')，'占位符'=>__('占位符文本2'，'woocommerce')，'description'=>__('自定义说明2:您的解释.'，'woocommerce')，'desc_tip'=>真的，'custom_attributes'=>$ readonly，//启用只读));}add_action('woocommerce_process_product_meta'，'save_product_custom_fields');函数save_product_custom_fields($ post_id){//1.只读复选框$ readonly = isset($ _POST ['_ enable_readonly'])吗?esc_attr($ _POST ['_ enable_readonly']):'';update_post_meta($ post_id，'_enable_readonly'，$ readonly);//2.只读字段:禁用只读时允许保存if(！isset($ _POST ['_ enable_readonly'])){//保存文本字段1的值if(isset($ _POST ['_ text_field_ro1'])){update_post_meta($ post_id，'_text_field_ro1'，sanitize_text_field($ _POST ['_ text_field_ro1']));}//保存文本字段2的值if(isset($ _POST ['_ text_field_ro2'])){update_post_meta($ post_id，'_text_field_ro2'，sanitize_text_field($ _POST ['_ text_field_ro2']));}}} 

代码进入您的活动子主题(或活动主题)的function.php文件中.经过测试，可以正常工作.

复选框被禁用(字段不是只读的):

复选框已启用(字段为只读):

I have some custom fields for my Woocommerce products inside my Inventory Tab using woocommerce_wp_text_input() function. I would like to add one more custom text field just for displaying a value for reference.

I want to lock the textfield by default so as not to be able to write something in it.

Is it possible?

解决方案

Yes it is possible adding the as custom_attributes the readonly property in the field arguments array using:

'custom_attributes' => array('readonly' => 'readonly'),

So your code will be like:

add_action( 'woocommerce_product_options_stock_status', 'display_product_options_inventory_custom_fields', 20 );
function display_product_options_inventory_custom_fields() {
    global $post;

    echo '</div><div class="options_group">'; // New separated section

    // Text field (conditionally readonly)
    woocommerce_wp_text_input( array(
        'id'                => '_text_field_ro',
        'type'        => 'text',
        'label'       => __( 'Read only field', 'woocommerce' ),
        'placeholder' => __( 'placeholder text', 'woocommerce' ),
        'description' => __( 'Custom description: your explanations.', 'woocommerce' ),
        'desc_tip'    => true,
        'custom_attributes' => $readonly, // Enabling read only
    ) );
}

Code goes in function.php file of your active child theme (or active theme). Tested and works.

---

Update: Adding a checkbox to enable the readonly fields:

add_action( 'woocommerce_product_options_stock_status', 'display_product_options_inventory_custom_fields', 20 );
function display_product_options_inventory_custom_fields() {
    global $post;

    echo '</div><div class="options_group">'; // New separated section

    // Checkbox
    woocommerce_wp_checkbox( array(
        'id'          => '_enable_readonly',
        'label'       => __( 'Enable readonly fields', 'woocommerce' ),
        'description' => __( 'Enable some fields to be readonly', 'woocommerce' ),
        'desc_tip'    => true,
    ));

    // Get the checkbox value
    $checkbox = get_post_meta( $post->ID, '_enable_readonly', true );

    // We set the field attribute "readonly" conditionally based on the checkbox
    $readonly = empty($checkbox) ? '' : array('readonly' => 'readonly');

    // Text field 1 (conditionally readonly)
    woocommerce_wp_text_input( array(
        'id'                => '_text_field_ro1',
        'type'        => 'text',
        'label'       => __( 'Read only field 1', 'woocommerce' ),
        'placeholder' => __( 'placeholder text 1', 'woocommerce' ),
        'description' => __( 'Custom description 1: your explanations.', 'woocommerce' ),
        'desc_tip'    => true,
        'custom_attributes' => $readonly, // Enabling read only
    ) );

    // Text field 2 (conditionally readonly)
    woocommerce_wp_text_input( array(
        'id'                => '_text_field_ro2',
        'type'        => 'text',
        'label'       => __( 'Read only field 2', 'woocommerce' ),
        'placeholder' => __( 'placeholder text 2', 'woocommerce' ),
        'description' => __( 'Custom description 2: your explanations.', 'woocommerce' ),
        'desc_tip'    => true,
        'custom_attributes' => $readonly, // Enabling read only
    ) );
}

add_action( 'woocommerce_process_product_meta', 'save_product_custom_fields' );
function save_product_custom_fields( $post_id ) {
    // 1. readonly checkbox
    $readonly = isset( $_POST['_enable_readonly'] ) ? esc_attr( $_POST['_enable_readonly'] ) : '';
    update_post_meta( $post_id, '_enable_readonly', $readonly );

    // 2. Readonly fields: allow saving when readonly is disabled
    if( ! isset( $_POST['_enable_readonly'] ) ){
        // Save text field 1 value
        if( isset( $_POST['_text_field_ro1'] ) ){
            update_post_meta( $post_id, '_text_field_ro1', sanitize_text_field( $_POST['_text_field_ro1'] ) );
        }
        // Save text field 2 value
        if( isset( $_POST['_text_field_ro2'] ) ){
            update_post_meta( $post_id, '_text_field_ro2', sanitize_text_field( $_POST['_text_field_ro2'] ) );
        }
    }
}

Code goes in function.php file of your active child theme (or active theme). Tested and works.

Checkbox is disabled (fields are not readonly):

Checkbox is enabled (fields are readonly):

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