Filter by relation's property

レポートではファイルもテストも指定されていません。示されている SearchFilter 設定を使って管理フィルター UI で問題を再現し、hydra:search のマッピングがどのように利用されているかを確認してください。関係プロパティが管理ページで使用可能なフィルターとして表示されれば完了です。

API Platform version(s) affected: 2.2.3 , 2.4.2

Description
I need to filter (SearchFilter) a resource with one of its association property. But in the filters in the admin page, I can see only the mobileNumber option.

How to reproduce
The documentation says it should be done with something like this:

 * @ApiFilter(SearchFilter::class, properties={
 *     "mobileNumber": "partial",
 *     "label.title": "exact",
 * })

here is the hydra:search section of the response 👇:skin-tone-2:

hydra:search: {@type: "hydra:IriTemplate", hydra:template: "/users{?mobileNumber,label.title,label.title[]}",…}
    @type: "hydra:IriTemplate"
    hydra:mapping: [{@type: "IriTemplateMapping", variable: "mobileNumber", property: "mobileNumber", required: false},…]
        0: {@type: "IriTemplateMapping", variable: "mobileNumber", property: "mobileNumber", required: false}
            @type: "IriTemplateMapping"
            property: "mobileNumber"
            required: false
            variable: "mobileNumber"
        1: {@type: "IriTemplateMapping", variable: "label.title", property: "label.title", required: false}
            @type: "IriTemplateMapping"
            property: "label.title"
            required: false
            variable: "label.title"
        2: {@type: "IriTemplateMapping", variable: "label.title[]", property: "label.title", required: false}
            @type: "IriTemplateMapping"
            property: "label.title"
            required: false
            variable: "label.title[]"
        hydra:template: "/users{?mobileNumber,label.title,label.title[]}"
        hydra:variableRepresentation: "BasicRepresentation"