使用多值属性

有时，您可能希望使用多值字段。 请仔细研究下面的示例：

• 您向用户提供电影。给定的电影有多个演员。
• 您出售音乐会门票。给定的用户有多个喜欢的乐队。
• 您出售服装。某款衬衫有多种尺寸可供选择。

要处理这些情景中的推荐，您可以将多值数据传递到 Target Recommendations 使用特殊的多值运算符。

允许 Recommendations 要识别多值数据，应将其作为JSON数组发送，如以下代码示例中所示。

在JavaScript中传递多值参数

function targetPageParams() {
  return {
    'entity.id':                   '123',
    'entity.categoryId':            '["A", "A:B", "A:B:C", "A:B:C:D"]',
    'entity.MultiValueAttribute':   '["X", "Y", "Z"]',
    'entity.event.detailsOnly':     'true',
    'excludedIds":                  '[123, 3232, 2323, 4344]',
    'orderId":                      '123456',
    'orderTotal":                   '195.32',
    'productPurchaseId":            '[001,002,003]'
  };
}

有关更多信息，请参阅 实施多值属性 in 自定义实体属性.

在CSV文件中传递多值实体属性

## RECSRecommendations Upload File,,,,,,,,,,,,,,,,,,,
## RECS''## RECS'' indicates a Recommendations pre-process header. Please do not remove these lines.,,,,,,,,,,,,,,,,,,,
## RECS,,,,,,,,,,,,,,,,,,,
## RECSUse this file to upload product display information to Recommendations. Each product has its own row. Each line must contain 19 values and if not all are filled a space should be left.,,,,,,,,,,,,,,,,,,,
## RECSThe last 100 columns (entity.custom1 - entity.custom100) are custom. The name 'customN' can be replaced with a custom name such as 'onSale' or 'brand'.,,,,,,,,,,,,,,,,,,,
## RECSIf the products already exist in Recommendations then changes uploaded here will override the data in Recommendations. Any new attributes entered here will be added to the product''s entry in Recommendations.,,,,,,,,,,,,,,,,,,,
## RECSentity.id ,entity.name,entity. categoryId ,entity. message ,entity.thumbnailUrl ,entity.value ,entity.pageUrl ,entity.inventory ,entity.margin ,entity.custom1 ,entity.custom2 ,entity.custom3 ,entity.custom4,entity.custom5,entity.custom6,entity.custom7,entity.custom8,entity.custom9,entity.custom10,
1,Sample Product 1,category1,Save 10%,http://sample.store/products/images/product1_th.jpg,325,http://sample.store/products/product_detail.jsp?productId=1,1000,48,a,"[ ""v1"", ""v2"" ]",, , , , , , , ,
2,Sample Product 2,category1,Save 10%,http://sample.store/products/images/product2_th.jpg,369,http://sample.store/products/product_detail.jsp?productId=2,1000,52,a,"[ ""v1"", ""v2"" ]",, , , , , , , ,
3,Sample Product 3,category1,Save 10%,http://sample.store/products/images/product3_th.jpg,479,http://sample.store/products/product_detail.jsp?productId=3,1000,78,a,"[ ""v1"", ""v2"" ]",,,,,,,,,
4,Sample Product 4,category1,Save 10%,http://sample.store/products/images/product4_th.jpg,409,http://sample.store/products/product_detail.jsp?productId=4,1000,66,a,"[ ""v1"", ""v2"" ]",,,,,,,,,
5,Sample Product 5,category1,Save 10%,http://sample.store/products/images/product5_th.jpg,325,http://sample.store/products/product_detail.jsp?productId=5,1000,45,a,"[ ""v1"", ""v2"" ]",,,,,,,,,

当根据上述格式将实体属性、配置文件属性或mbox参数作为多值提供时， Recommendations 自动推断字段是多值。

以下运算符可用于多值实体、配置文件和mbox属性：

• 列表中包含
• 列表中未包含

在包含规则中使用多值属性

示例：排除最近监视的项目

假设您希望阻止推荐用户最近十个观看影片中的任何影片。 首先，编写一个名为 user.lastWatchedMovies 以将最近查看的十个影片跟踪为JSON数组。 然后，您可以使用以下包含规则排除项目：

`Profile Attribute Matching`
`id - is not contained in list - user.lastWatchedMovies`

包含规则的JSON API表示形式：

{
    "attribute": "id",
    "operation": "isNotContainedInList",
    "source": {
        "name": "user.lastWatchedMovies",
        "type": "PROFILE"
    }
}

示例：推荐用户收藏夹中的项目

假设您希望仅在演奏的乐队是用户最喜爱的乐队之一时才向音乐会推荐票。 首先，确保您有一个名为 profile.favoriteBands 包含用户喜爱的乐队。 然后，确保您的目录包含属性 entity.artistPerforming 包括演唱会的艺术家。 然后，您可以使用以下包含规则：

`Profile Attribute Matching`
`artistPerforming - is contained in list - profile.favoriteBands`

包含规则的JSON API表示形式：

{
    "attribute": "artistPerforming",
    "operation": "isContainedInList",
    "source": {
        "name": "profile.favoriteBands",
        "type": "PROFILE"
    }
}

示例：创建推荐用户收藏夹中项目的标准API

与所有标准一样，使用多值过滤规则的标准也可以通过Adobe I/OAPI创建。 用于创建实体属性标准的示例API调用 id 包含在mbox参数列表中 favorites 提供于此处：

curl -X POST \
  https://<serverhost>/api/recs/<client>/criteria/item \
  -H 'Accept: application/vnd.adobe.target.v1+json' \
  -H 'Accept-Encoding: gzip, deflate' \
  -H 'Cache-Control: no-cache' \
  -H 'Connection: keep-alive' \
  -H 'Content-Type: application/json' \
  -H 'User-Agent: <from API client>' \
  -H 'X-Target-user-email: <email address>' \
  -H 'cache-control: no-cache' \
  -d '{
    "name": "viewed criteria",
    "criteriaTitle": "test title",
    "type": "VIEWED_CF",
    "key": "CURRENT",
    "daysCount": "TWO_WEEKS",
    "aggregation": "NONE",
    "backupDisabled": false,
    "partialDesignAllowed": true,
    "configuration": {
        "inclusionRules": [
            {
                "attribute": "id",
                "operation": "isContainedInList",
                "source": {
                    "name": "mbox.favorites",
                    "type": "MBOX"
                }
            }
        ]
    }
}'

这将与页面上的JavaScript配对，以传入收藏夹内容：

<!-- pass in the value of mbox parameter “favorites” as JSON array -->
<script type="text/javascript">
   mboxCreate('myMbox','entity.id=<key>','favorites=["a","b","c"]');
</script>

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