整个组高级自定义字段的输出字段

时间:2014-05-21 09:07:41

标签: php wordpress custom-fields advanced-custom-fields

我正试图找到一种方法(使用wordpress插件ACF)输出整组字段。

我有两个“字段组”,我想说它们中的任何一个是“活动”(带有复选框)以将它们回显到我的模板。

问题是,如何从一个“字段组”中获取所有字段数据的数组?

现在我正尝试以下内容:

<?php

$group_ID = 37;

$fields = array();
$fields = apply_filters('acf/field_group/get_fields', $fields, $group_ID);

echo "<pre>";
print_r($fields);
echo "</pre>";

?>

它输出一个字段数组,但据我所知,它不包含任何实际数据:

Array
(
    [0] => Array
        (
            [key] => field_537b79d92081f
            [label] => Active-1
            [name] => active-1
            [_name] => active-1
            [type] => true_false
            [order_no] => 0
            [instructions] => 
            [required] => 0
            [id] => acf-field-active-1
            [class] => true_false
            [conditional_logic] => Array
                (
                    [status] => 0
                    [rules] => Array
                        (
                            [0] => Array
                                (
                                    [field] => null
                                    [operator] => ==
                                )

                        )

                    [allorany] => all
                )

            [message] => 
            [default_value] => 0
            [field_group] => 37
        )

    [1] => Array
        (
            [key] => field_537b78a4c743e
            [label] => Title-1
            [name] => title-1
            [_name] => title-1
            [type] => text
            [order_no] => 1
            [instructions] => 
            [required] => 0
            [id] => acf-field-title-1
            [class] => text
            [conditional_logic] => Array
                (
                    [status] => 0
                    [rules] => Array
                        (
                            [0] => Array
                                (
                                    [field] => field_537b79d92081f
                                    [operator] => ==
                                    [value] => 1
                                )

                        )

                    [allorany] => all
                )

            [default_value] => 
            [placeholder] => 
            [prepend] => 
            [append] => 
            [formatting] => html
            [maxlength] => 
            [field_group] => 37
        )

    [2] => Array
        (
            [key] => field_537b78c6c743f
            [label] => Info-1
            [name] => info-1
            [_name] => info-1
            [type] => textarea
            [order_no] => 2
            [instructions] => 
            [required] => 0
            [id] => acf-field-info-1
            [class] => textarea
            [conditional_logic] => Array
                (
                    [status] => 0
                    [rules] => Array
                        (
                            [0] => Array
                                (
                                    [field] => field_537b79d92081f
                                    [operator] => ==
                                    [value] => 1
                                )

                        )

                    [allorany] => all
                )

            [default_value] => 
            [placeholder] => 
            [maxlength] => 
            [rows] => 
            [formatting] => br
            [field_group] => 37
        )

)

我想基本上做以下事情(原谅sudo /破解代码,PHP不是我的语言):

<?php

    $group_ID1 = 37;

    $fields = array($group_ID1);

    if ($fields1['active'] !== null) {
        echo "<h1>";
        echo $fields1['active']['text'];
        echo $fields1['title']['text'];
        echo $fields1['content']['text'];
        echo "<h1>";
    }

    $group_ID2 = 38;

    $fields2 = array($group_ID2);

    if ($fields2['active'] !== null) {
        echo "<h1>";
        echo $fields2['active']['text'];
        echo $fields2['title']['text'];
        echo $fields2['content']['text'];
        echo "<h1>";
    }

?>

我还可以获得如下的特定字段数据:

<?php

    $field_key = "field_537b78c6c743f";
    $field = get_field_object($field_key);

    if($field) {
        echo "<pre>";
        print_r($field);
        echo "</pre>";
    }

?>

其中输出以下内容:

Array
(
    [key] => field_537b78c6c743f
    [label] => Info-1
    [name] => info-1
    [_name] => info-1
    [type] => textarea
    [order_no] => 2
    [instructions] => 
    [required] => 0
    [id] => acf-field-info-1
    [class] => textarea
    [conditional_logic] => Array
        (
            [status] => 0
            [rules] => Array
                (
                    [0] => Array
                        (
                            [field] => field_537b79d92081f
                            [operator] => ==
                            [value] => 1
                        )

                )

            [allorany] => all
        )

    [default_value] => 
    [placeholder] => 
    [maxlength] => 
    [rows] => 
    [formatting] => br
    [field_group] => 37
    [value] => testtesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttest
)

但我真的需要为每个“Field Group”调用每个字段键吗?在一个“字段组”中是否没有所有字段的数组?

3 个答案:

答案 0 :(得分:6)

您可以获取属于一个组的所有字段的数组。功能是:

$acf_fields = acf_get_fields_by_id( $group_ID );

我们需要知道ACF字段组ID。您可以在组编辑页面的URL中找到它,例如:

http://site.ru/wp-admin/post.php?post=340&action=edit

在这种情况下,组ID为340.如果您不想使用硬编码ID(如果您的组不时更改),您可以使用组名获取它(在此示例中为组名称ID)技术CPT):

global $wpdb;
$group_ID = $wpdb->get_var( "SELECT ID FROM $wpdb->posts WHERE post_title = 'Technic CPT'" );

输出将如下所示:

array(1) {
  [0] => array(29) {
    ["ID"] => int(366)
    ["key"] => string(19) "field_55f05295a59ca"
    ["label"] => string(29) "Gallery of technic"
    ["name"] => string(15) "technic_gallery"
    ["prefix"] => string(0) ""
    ["type"] => string(7) "gallery"
    ["value"] => NULL
    ["menu_order"] => int(6)
    ["instructions"] => string(155) "Field instructions"
    ["required"] => int(0)
    ["id"] => string(0) ""
    ["class"] => string(0) ""
    ["conditional_logic"] => int(0)
    ["parent"] => int(340)
    ["wrapper"] => array(3) {
      ["width"] => int(50)
      ["class"] => string(0) ""
      ["id"] => string(0) ""
    }
    ["_name"] => string(15) "technic_gallery"
    ["_input"] => string(0) ""
    ["_valid"] => int(1)
    ["min"] => string(0) ""
    ["max"] => int(10)
    ["preview_size"] => string(9) "thumbnail"
    ["library"] => string(3) "all"
    ["min_width"] => int(475)
    ["min_height"] => int(365)
    ["min_size"] => string(0) ""
    ["max_width"] => string(0) ""
    ["max_height"] => string(0) ""
    ["max_size"] => int(2)
    ["mime_types"] => string(0) ""
  }
}

答案 1 :(得分:3)

我使用以下方法来获得我想要的东西:

<?php
    // Get wordpress page all fields
    $post_id = get_the_ID();
    $fields = get_field_objects($post_id);
?>

<?php
    // Remember Widget
    $status = $fields['remember-status']['value'];
    $text = $fields['remember-text']['value'];
    if ($status == TRUE) {
        echo "<div class=\"info-container\">";
            echo "<p>" . $text . "</p>";
        echo "</div>";
    };
?>

答案 2 :(得分:0)

过滤器acf/field_group/get_fields似乎没有加载字段。

您必须在获取它们之后加载它们,但在尝试加载它们之前检查值是否设置是个好主意,以防万一发生任何变化:)

您可以使用acf/load_value和可能的acf/format_value过滤器来获得所需的输出。

我创建了这个小的加载器函数,它将引用引用到acf/field_group/get_fields过滤器获取的ACF字段数组,循环遍历它们并在必要时加载(和格式化)它们的值:

function my_load_ACF_fields_values( &$ACF_FIELDS, $post_id = null ){
  if( empty($ACF_FIELDS) ) return false;
  if( empty($post_id) ) $post_id = get_the_ID();

  foreach( $ACF_FIELDS as &$acf_field ){
    if( !isset($acf_field['value']) ){
       $acf_field['value'] = apply_filters('acf/load_value', false, $post_id, $acf_field);
       $acf_field['formatted_value'] = apply_filters(
          'acf/format_value', $acf_field['value'], $post_id, $acf_field
       );
    }
  } 
  return true;
}

所以用法如下:

//1. GET FIELDS BY GROUP ID
$my_acf_fields = apply_filters('acf/field_group/get_fields', [], $my_acf_GROUP_ID);

//2. LOAD/INJECT THEIR VALUES
my_load_ACF_fields_values( $my_acf_fields /*, $possiblyCustomPostID */ );

//3. Display/Process fields...

注意:请注意,我知道加载值一个接一个也不是一个好主意,遗憾的是ACF的api似乎没有更好的方法和最重要的是,插件似乎为ACF的原生显示器做了这个......