2012-04-12 106 views
13

我正在開發一本雜誌的WordPress網站,將擁有移動應用中一個JSON飼料。我使用高級自定義字段和每個文章中的多個文章和多個頁面的Repeater字段來設置後端。 http://www.advancedcustomfields.com/add-ons/repeater-field/ Screen shot of Repeater FieldsJSON API來顯示高級自定義字段 - WordPress的

我正在使用JSON API,但是這不包括我的任何自定義字段。目前是否有插件可以做到這一點?

These are the Custom Fields 'slug names' of the previous fields

+1

我有相同的ipad magazing項目和我的WebAdmin是wordpress,你能告訴我如何管理這個ACF輸出到JSON?... – Denish 2012-05-18 12:42:59

回答

8

來到這裏用了同樣的問題尋找。這還沒有完全審查,但我認爲這是正確的道路上。一探究竟。

我比你這樣做,這可能需要改變有點少了一個嵌套的水平。但是JSON API插件有一個名爲json_api_encode的過濾器。我有一個叫做規格的轉發器,看起來像這樣。

http://d.pr/i/YMvv

在我的功能文件我有這個。

add_filter('json_api_encode', 'my_encode_specs'); 

function my_encode_specs($response) { 
    if (isset($response['posts'])) { 
    foreach ($response['posts'] as $post) { 
     my_add_specs($post); // Add specs to each post 
    } 
    } else if (isset($response['post'])) { 
    my_add_specs($response['post']); // Add a specs property 
    } 
    return $response; 
} 

function my_add_specs(&$post) { 
    $post->specs = get_field('specifications', $post->id); 
} 

它將自定義值附加到JSON API輸出。注意ACF中的get_field函數在這裏完美地工作,用於恢復中繼器值的數組。

希望這會有所幫助!

+0

很好的例子!非常感謝。您是否做過更改以使用JSON API做更多工作?有關自定義字段/後meta的更多提示? – Iladarsda 2012-10-26 08:01:19

16

@Myke:你幫了我極大。這裏是我的謙虛另外:

add_filter('json_api_encode', 'json_api_encode_acf'); 


function json_api_encode_acf($response) 
{ 
    if (isset($response['posts'])) { 
     foreach ($response['posts'] as $post) { 
      json_api_add_acf($post); // Add specs to each post 
     } 
    } 
    else if (isset($response['post'])) { 
     json_api_add_acf($response['post']); // Add a specs property 
    } 

    return $response; 
} 

function json_api_add_acf(&$post) 
{ 
    $post->acf = get_fields($post->id); 
} 
+1

這是輝煌的 – benpalmer 2013-08-13 10:31:13

+0

真棒 - 工作就像一個魅力! – whodeee 2013-08-30 20:38:40

+0

LIFESAVER!我花了一點時間才找到將它放在哪裏,不得不通讀JSON的WP文檔的API。 (json-api.php) – 2013-09-10 21:41:48

3

我不知道,如果你還有興趣的解決方案,但我可以修改的JSON API插件模型/ post.php中文件顯示中繼數據數組。這是通過http://wordpress-problem.com/marioario-on-plugin-json-api-fixed-get-all-custom-fields-the-right-way/

進行了修改的修改具有以下取代set_custom_fields_value()函數:

function set_custom_fields_value() { 

    global $json_api; 

    if ($json_api->include_value('custom_fields') && $json_api->query->custom_fields) { 

     // Query string params for this query var 
     $params = trim($json_api->query->custom_fields); 

     // Get all custom fields if true|all|* is passed 
     if ($params === "*" || $params === "true" || $params === "all") { 

      $wp_custom_fields = get_post_custom($this->id); 
      $this->custom_fields = new stdClass(); 

      // Loop through our custom fields and place on property 
      foreach($wp_custom_fields as $key => $val) { 
       if (get_field($key)) { 
        $this->custom_fields->$key = get_field($key); 
       } else if ($val) { 
        // Some fields are stored as serialized arrays. 
        // This method does not support multidimensionals... 
        // but didn't see anything wrong with this approach 
        $current_custom_field = @unserialize($wp_custom_fields[$key][0]); 

        if (is_array($current_custom_field)) { 

         // Loop through the unserialized array 
         foreach($current_custom_field as $sub_key => $sub_val) { 

          // Lets append these for correct JSON output 
          $this->custom_fields->$key->$sub_key = $sub_val; 
         } 

        } else { 

         // Break this value of this custom field out of its array 
         // and place it on the stack like usual 
         $this->custom_fields->$key = $wp_custom_fields[$key][0]; 

        } 
       } 
      } 
     } else { 

      // Well this is the old way but with the unserialized array fix 
      $params = explode(',', $params); 
      $wp_custom_fields = get_post_custom($this->id); 
      $this->custom_fields = new stdClass(); 

      foreach ($params as $key) { 

       if (isset($wp_custom_fields[$key]) && $wp_custom_fields[$key][0]) { 
        $current_custom_field = @unserialize($wp_custom_fields[$key][0]); 

        if (is_array($current_custom_field)) { 
         foreach($current_custom_field as $sub_key => $sub_val) { 
          $this->custom_fields->$key->$sub_key = $sub_val; 
         } 

        } else { 
         $this->custom_fields->$key = $wp_custom_fields[$key][0]; 

        } 

       } 
      } 
     } 

    } else { 
     unset($this->custom_fields); 

    } 
} 
0

電流ACF的版本打印出custom_fields對象到JSON API的調用,包含所有相對於Post或Page的字段。我編輯了@Myke版本,將特定的自定義字段從ACF選項頁面添加到每個帖子或頁面。遺憾的是,整個選項頁面沒有get_fields()函數,因此您必須根據字段結構對其進行編輯。

add_filter('json_api_encode', 'json_api_encode_acf'); 

function json_api_encode_acf($response) { 
    if (isset($response['posts'])) { 
     foreach ($response['posts'] as $post) { 
      json_api_add_acf($post); // Add specs to each post 
     } 
    } 
    else if (isset($response['post'])) { 
     json_api_add_acf($response['post']); // Add a specs property 
    } 
    else if (isset($response['page'])) { 
     json_api_add_acf($response['page']); // Add a specs to a page 
    } 

    return $response; 
} 

function json_api_add_acf(&$post) { 
    $post->custom_fields->NAME_OF_YOUR_CUSTOM_FIELD = get_field('NAME_OF_YOUR_CUSTOM_FIELD', 'option'); 
} 
4

更新WordPress的4.7

與WordPress 4.7 REST功能的釋放不再提供爲不同的插件,而其在軋製(無需插件)。

以前的過濾器不會出現工作。然而,下面的代碼段(可以在您的functions.php中):

> = PHP 5。3

add_filter('rest_prepare_post', function($response) { 
    $response->data['acf'] = get_fields($response->data['id']); 
    return $response; 
}); 

< PHP 5.3

add_filter('rest_prepare_post', 'append_acf'); 

function append_acf($response) { 
    $response->data['acf'] = get_fields($response->data['id']); 
    return $response; 
}; 

注意過濾器是一個通配符過濾器,應用於像

apply_filters("rest_prepare_$type", ... 

所以如果你有多種內容類型(自定義),你需要這樣做:

add_filter('rest_prepare_multiple_choice', 'append_acf'); 
add_filter('rest_prepare_vocabularies', 'append_acf'); 

function append_acf($response) { 
    $response->data['acf'] = get_fields($response->data['id']); 
    return $response; 
}; 

備註看來,rest_prepare_x被稱爲每記錄。因此,如果你正在ping指標端點,它會被多次調用(所以你不需要檢查它的帖子或帖子)

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