我目前一直在使用Azure搜索,但偶然发现了一个场景,其中有两个表:一个描述一个位置,另一个描述每个位置有多张照片。
我想使用两个索引器来填充相同的索引,其中一个将填充地点的详细信息(名称,坐标等),而另一个将获取照片,运行自定义WebApiSkill
来获取某些详细信息从照片中删除,然后将它们添加到索引上的复杂集合中。
问题是,我不知道如何在索引上填充该照片集。我尝试将outputFieldMappings
定义为Photos/*/Details
,或者仅定义为Photos/Details
,但是我仍然遇到相同的错误:
Microsoft.Rest.Azure.CloudException: 'Output field mapping specifies target field 'Photos/*/PhotoURI' that doesn't exist in the index'
考虑到这一点,我想知道是否有可能在Azure搜索中填充这样的复杂集合,如果可以,我将如何去做呢?
表格:
CREATE TABLE Places
(
Id bigint not null IDENTITY(1,1) PRIMARY KEY,
Name nvarchar(50) not null,
Location nvarchar(50) not null
);
CREATE TABLE PlacePhotos
(
PhotoURI nvarchar(200) not null PRIMARY KEY,
PlaceId bigint not null REFERENCES Places (Id)
);
用于创建索引的类:
public partial class Photo
{
[IsSearchable]
public string PhotoURI { get; set; }
public List<Details> Details { get; set; }
}
public partial class Place
{
[System.ComponentModel.DataAnnotations.Key]
public string Id { get; set; }
[IsSearchable, IsFilterable, IsSortable, IsFacetable]
public string Name { get; set; }
[IsSearchable, IsFilterable]
public string Location { get; set; }
[IsSearchable, IsFilterable, IsSortable]
public List<Photo> Photos { get; set; }
}
索引器(以PlacePhotos
表为数据源)
private static void Create_PlacePhotos_Indexer(SearchServiceClient serviceClient)
{
var indexerDef = new Indexer(
name: placePhotosIndexer,
dataSourceName: placePhotosDataSource,
targetIndexName: index,
skillsetName: skillset,
schedule: new IndexingSchedule
{
Interval = new TimeSpan(0, 30, 0)
},
fieldMappings: new List<FieldMapping>
{
new FieldMapping("PlaceId", "Id"),
new FieldMapping("PhotoURI", "PhotoURI")
},
outputFieldMappings: new List<FieldMapping>
{
new FieldMapping("/document/Id", "Id"),
new FieldMapping("/document/PhotoURI", "Photos/*/PhotoURI"),
new FieldMapping("/document/Details", "Photos/*/Details")
}
);
serviceClient.Indexers.CreateOrUpdate(indexerDef);
}
答案 0 :(得分:1)
Output field mapping目标字段名称必须是顶级索引字段名称,因此Photos/*/PhotoURI
无效,您必须直接定位Photos
。
要“成形”要映射的Photos
值,可以使用ShaperSkill
{
"@odata.type": "#Microsoft.Skills.Util.ShaperSkill",
"context": "/document/photos/*",
"inputs": [
{
"name": "PhotoURI",
"source": "/document/photos/*/PhotoURI"
},
{
"name": "Details",
"source": "/document/photos/*/Details"
}
],
"outputs": [
{
"name": "output",
"targetName": "shapedValue"
}
]
}
和输出字段映射
new FieldMapping("/document/photos/*/shapedValue", "Photos")
注意-您可能必须重新布置输出URI和详细信息的技能,因此它们共享共同的context
。从上面的代码段看来,每个document
都只有1张照片,这与您的索引定义不同。