用元框自定義帖子類型圖片上傳

Question

我無法在自定義帖子類型中找到我的附加圖片。 中的functions.php

$prefix = 'custom_'; 
$custom_meta_fields = array(

    array(
     //'label' => 'Textarea', 
     'desc' => 'A description for the field.', 
     'id' => $prefix.'textarea', 
     'type' => 'textarea' 
    ) 
); 

// Default metabox for custom post types. 
function avz_custom_meta_box() { 

    // $post_types = get_post_types(array('public' => true)); 
    $post_types = get_post_types(); 
    foreach ($post_types as $post_type) { 
     if ($post_type == 'page' || $post_type =='post') 
      continue; 
     add_meta_box(
     $prefix.'image', 
     'Header Image Upload Box', 
     'show_avz_custom_meta_box', 
     $post_type, 
     'normal', 
     'high'); 
    } 

} 
add_action('add_meta_boxes', 'avz_custom_meta_box'); 

function show_avz_custom_meta_box() { 
    global $avz_custom_meta_box_fields, $post; 
    // Use nonce for verification 
    echo '<input type="hidden" name="avz_custom_meta_box_fields_nonce" value="'.wp_create_nonce(basename(__FILE__)).'" />'; 

    // Begin the field table and loop 
    echo '<table class="form-table">'; 
    foreach ($avz_custom_meta_box_fields as $field) { 
     // get value of this field if it exists for this post 
     $meta = get_post_meta($post->ID, $field['id'], true); 
     // begin a table row with 
     echo '<tr> 
       <td>'; 
       switch($field['type']) { 
        case 'image': 
         $image = get_template_directory_uri().'/images/image.png'; 
         echo '<span class="custom_default_image" style="display:none">'.$image.'</span>'; 
         if ($meta) { $image = wp_get_attachment_image_src($meta, 'medium'); $image = $image[0]; }    
         echo '<input name="'.$field['id'].'" type="hidden" class="custom_upload_image" value="'.$meta.'" /> 
            <img src="'.$image.'" class="custom_preview_image" alt="" /><br /> 
             <input class="custom_upload_image_button button" type="button" value="Choose Image" /> 
             <small>&nbsp;<a href="#" class="custom_clear_image_button">Remove Image</a></small> 
             <br clear="all" /><span class="description">'.$field['desc'].'</span>'; 
        break; 

       } //end switch 
     echo '</td></tr>'; 
    } // end foreach 
    echo '</table>'; // end table 
} 

// Save the Data 
function save_multiBox_custom_meta($post_id) { 
    global $avz_custom_meta_box_fields; 

    // verify nonce 
    if (!wp_verify_nonce($_POST['avz_custom_meta_box_fields_nonce'], basename(__FILE__))) 
     return $post_id; 
    // check autosave 
    if (defined('DOING_AUTOSAVE') && DOING_AUTOSAVE) 
     return $post_id; 
    // check permissions 
    if ('page' == $_POST['post_type']) { 
     if (!current_user_can('edit_page', $post_id)) 
      return $post_id; 
     } elseif (!current_user_can('edit_post', $post_id)) { 
      return $post_id; 
    } 

    // loop through fields and save the data 
    foreach ($avz_custom_meta_box_fields as $field) { 
     if($field['type'] == 'tax_select') continue; 
     $old = get_post_meta($post_id, $field['id'], true); 
     $new = $_POST[$field['id']]; 
     if ($new && $new != $old) { 
      update_post_meta($post_id, $field['id'], $new); 
     } elseif ('' == $new && $old) { 
      delete_post_meta($post_id, $field['id'], $old); 
     } 
    } // enf foreach 

    // save taxonomies 
    $post = get_post($post_id); 
    $category = $_POST['category']; 
    wp_set_object_terms($post_id, $category, 'category'); 
} 
add_action('save_post', 'save_multiBox_custom_meta'); 

而且在single.php中

if($image_upload_id = get_post_meta($post->ID, $field['custom_image'], true)){ 
    $img = $image_upload_id ['custom_image'][0]; 
    echo wp_get_attachment_image($img, 'full'); 
} 

，但無法找到附加圖像的代碼。 在管理員上傳的圖片顯示，但在帖子頁面沒有顯示。

Answer 1

您是否嘗試訪問帖子附件？只是爲了看看它在那裏？

<?php 
$args = array(
'post_type' => 'attachment', 
'numberposts' => null, 
'post_status' => null, 
'post_parent' => $post->ID 
); 

$attachments = get_posts($args); 
if ($attachments) { 
    echo "<pre>"; 
    print_r($attachments); 
    echo "</pre>"; 
    $attachment = $attachments[0]; 
    // print full link to attachment 
    the_attachment_link($attachment->ID, false); 
}else{ 
    echo "No Attachments for this post!"; 
} 
?>