kanbanpress_custom_edit_fields

// Example of adding custom fields to the edit form
add_action('kanbanpress_custom_edit_fields', function($post) {
    echo '<input type="text" name="custom_field_1" value="' . esc_attr(get_post_meta($post->ID, 'custom_field_1', true)) . '" class="custom-field" placeholder="Custom Field 1" />';
    echo '<input type="text" name="custom_field_2" value="' . esc_attr(get_post_meta($post->ID, 'custom_field_2', true)) . '" class="custom-field" placeholder="Custom Field 2" />';
});

// Example of saving custom fields
add_action('kanbanpress_save_custom_fields', function($post_id, $data) {
    if (isset($data['custom_field_1'])) {
        update_post_meta($post_id, 'custom_field_1', sanitize_text_field($data['custom_field_1']));
    }
    if (isset($data['custom_field_2'])) {
        update_post_meta($post_id, 'custom_field_2', sanitize_text_field($data['custom_field_2']));
    }
});

// Example of adding complex custom fields to the edit form
add_action('kanbanpress_custom_edit_fields', function($post) {
    $options = array(
        'option1' => 'Option 1',
        'option2' => 'Option 2',
        'option3' => 'Option 3'
    );
    $selected_option = get_post_meta($post->ID, 'custom_dropdown', true);
    echo '<label for="custom_dropdown">Select Option:</label>';
    echo '<select name="custom_dropdown" class="custom-field">';
    foreach ($options as $value => $label) {
        echo '<option value="' . esc_attr($value) . '" ' . selected($selected_option, $value, false) . '>' . esc_html($label) . '</option>';
    }
    echo '</select>';

    $custom_date = get_post_meta($post->ID, 'custom_date', true);
    echo '<label for="custom_date">Select Date:</label>';
    echo '<input type="date" name="custom_date" value="' . esc_attr($custom_date) . '" class="custom-field" />';
});

// Example of saving complex custom fields
add_action('kanbanpress_save_custom_fields', function($post_id, $data) {
    if (isset($data['custom_dropdown'])) {
        update_post_meta($post_id, 'custom_dropdown', sanitize_text_field($data['custom_dropdown']));
    }
    if (isset($data['custom_date'])) {
        update_post_meta($post_id, 'custom_date', sanitize_text_field($data['custom_date']));
    }
});