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搜尋及套用篩選器

必要的授權範圍

Google Photos Library API 包含多個範圍，可用於存取媒體項目和相簿。根據不同的範圍，各種呼叫傳回的媒體項目會有所不同未獲得開發人員的要求

photoslibrary.readonly 範圍允許存取使用者的程式庫。photoslibrary.readonly.appcreateddata 範圍允許存取只會用於由應用程式建立的媒體項目若需更多資訊，請參閲授權範圍。

可用的篩選器

您可在使用者的媒體庫中搜尋特定類型的媒體，舉例來說，您可能只想尋找動物造型、特定日期的物品排除收據的相片。您可以用下列方式排除或加入特定項目：正在將篩選器套用至相簿或相片庫清單。這裡有五個會根據媒體項目屬性進行篩選：

內容類別 (includedContentCategories、 excludedContentCategories)。
日期和日期範圍 (dates、ranges)
功能 (featureFilter)
媒體類型 (mediaTypeFilter)
封存狀態 (includeArchivedMedia)

如果 albumId 符合下列條件，您就不應在 mediaItems:search 要求中使用篩選器設定。如果在設定「AlbumId」屬性時使用篩選器，會發生 INVALID_ARGUMENT 錯誤 (400)。

結果會按照媒體項目的建立時間排序。可以使用日期篩選器修改查詢的排序順序。

新上傳的媒體需要一段時間才會顯示在搜尋結果中。媒體出現在未經篩選的搜尋中。

篩選後的搜尋中不會顯示日期在未來的媒體項目。這類內容會出現在未經篩選的搜尋和相簿搜尋結果中。

套用篩選器

如要套用篩選器，請呼叫 mediaItems.search 和指定 filter 屬性。

REST

以下是 POST 要求：

POST https://photoslibrary.googleapis.com/v1/mediaItems:search
Content-type: application/json
Authorization: Bearer oauth2-token
{
  "pageSize": "100",
  "filters": {
    ...
  }
}

POST 要求會傳回下列回應：

{
  "mediaItems": [
    ...
  ],
  "nextPageToken": "token-for-pagination"
}

Java

try {
  // Create a new Filter object
  Filters filters = Filters.newBuilder()
      // .setContentFilter(...)
      // .setDateFilter(...)
      // ...
      .build();

  // Specify the Filter object in the searchMediaItems call
  SearchMediaItemsPagedResponse response = photosLibraryClient.searchMediaItems(filters);
  for (MediaItem item : response.iterateAll()) {
    // ...
  }
} catch (ApiException e) {
  // Handle error
}

PHP

try {
    $filtersBuilder = new FiltersBuilder();
    // $filtersBuilder->addIncludedCategory(...);
    // $filtersBuilder->addDate(...);
    // ...
    // Make a search call with the options set in the filters builder
    $response = $photosLibraryClient->searchMediaItems(
        ['filters' => $filtersBuilder->build()]
    );
    foreach ($response->iterateAllElements() as $element) {
        // ...
    }
} catch (\Google\ApiCore\ApiException $e) {
    // Handle error
}

詳情請參閱列出媒體庫內容、專輯和媒體項目。

內容類別

系統會處理所有媒體項目並指派標籤。你可以納入及排除下列任一類別

`ANIMALS`	`FASHION`	`LANDMARKS`	`RECEIPTS`	`WEDDINGS`
`ARTS`	`FLOWERS`	`LANDSCAPES`	`SCREENSHOTS`	`WHITEBOARDS`
`BIRTHDAYS`	`FOOD`	`NIGHT`	`SELFIES`
`CITYSCAPES`	`GARDENS`	`PEOPLE`	`SPORT`
`CRAFTS`	`HOLIDAYS`	`PERFORMANCES`	`TRAVEL`
`DOCUMENTS`	`HOUSES`	`PETS`	`UTILITY`

實用相片可涵蓋各式各樣的媒體內容。這個類別通常包含使用者為了執行某些工作而擷取到的項目提示任務的完成時間包含文件、收據、螢幕截圖和便利貼記事、選單和其他類似媒體項目

類別上的正確性必須與 Google 相簿偶爾會出現商品標籤有誤的情況，因此我們無法保證內容類別篩選器的正確性

包含類別

納入多個類別時，只要媒體項目符合下列任一項目：包含類別清單每項要求最多可加入 10 個類別。這個範例篩選器會傳回任何 LANDSCAPES 或 LANDMARKS 項目。

REST

{
  "filters": {
    "contentFilter": {
      "includedContentCategories": [
        "LANDSCAPES",
        "LANDMARKS"
      ]
    }
  }
}

Java

// Create a content filter that includes landmarks and landscapes
ContentFilter contentFilter = ContentFilter.newBuilder()
    .addIncludedContentCategories(ContentCategory.LANDMARKS)
    .addIncludedContentCategories(ContentCategory.LANDSCAPES)
    .build();
// Create a new Filters object
Filters filters = Filters.newBuilder()
    .setContentFilter(contentFilter)
    .build();
// Specify the Filter object in the searchMediaItems call
SearchMediaItemsPagedResponse response = photosLibraryClient.searchMediaItems(filters);

PHP

// Create a content filter that includes landmarks and landscapes
$filtersBuilder = new FiltersBuilder();
$filtersBuilder->addIncludedCategory(ContentCategory::LANDMARKS);
$filtersBuilder->addIncludedCategory(ContentCategory::LANDSCAPES);
// Make a search call with the options set in the filters builder
$response = $photosLibraryClient->searchMediaItems(
    ['filters' => $filtersBuilder->build()]
);

排除類別

系統只會顯示與任何排除類別都不相符的媒體項目。與加入的類別類似，最多可排除 10 個類別每個要求。

這個篩選器會傳回任何不是 PEOPLE 或 SELFIES 的項目：

REST

{
  "filters": {
    "contentFilter": {
      "excludedContentCategories": [
        "PEOPLE",
        "SELFIES"
      ]
    }
  }
}

Java

// Create a content filter that excludes people and selfies
ContentFilter contentFilter = ContentFilter.newBuilder()
    .addExcludedContentCategories(ContentCategory.PEOPLE)
    .addExcludedContentCategories(ContentCategory.SELFIES)
    .build();
// Create a new Filters object
Filters filters = Filters.newBuilder()
    .setContentFilter(contentFilter)
    .build();
// Specify the Filter object in the searchMediaItems call
SearchMediaItemsPagedResponse response = photosLibraryClient.searchMediaItems(filters);

PHP

// Create a content filter that excludes people and selfies
$filtersBuilder = new FiltersBuilder();
$filtersBuilder->addExcludedCategory(ContentCategory::PEOPLE);
$filtersBuilder->addExcludedCategory(ContentCategory::SELFIES);
// Make a search call with the options set in the filters builder
$response = $photosLibraryClient->searchMediaItems(
    ['filters' => $filtersBuilder->build()]
);

加入及排除多個類別

你可以加入某些類別，並排除其他類別。以下範例會傳回 LANDSCAPES 和 LANDMARKS，但會移除包含 PEOPLE 或 SELFIES：

REST

{
  "filters": {
    "contentFilter": {
      "includedContentCategories": [
        "LANDSCAPES",
        "LANDMARKS"
      ],
      "excludedContentCategories": [
        "PEOPLE",
        "SELFIES"
      ]
    }
  }
}

Java

// Create a content filter that excludes people and selfies and includes landmarks and landscapes
ContentFilter contentFilter = ContentFilter.newBuilder()
    .addIncludedContentCategories(ContentCategory.LANDSCAPES)
    .addIncludedContentCategories(ContentCategory.LANDMARKS)
    .addExcludedContentCategories(ContentCategory.PEOPLE)
    .addExcludedContentCategories(ContentCategory.SELFIES)
    .build();
// Create a new Filters object
Filters filters = Filters.newBuilder()
    .setContentFilter(contentFilter)
    .build();
// Specify the Filters object in the searchMediaItems call
SearchMediaItemsPagedResponse response = photosLibraryClient.searchMediaItems(filters);

PHP

// Create a content filter that excludes people and selfies and includes landmarks and landscapes
$filtersBuilder = new FiltersBuilder();
$filtersBuilder->addIncludedCategory(ContentCategory::LANDMARKS);
$filtersBuilder->addIncludedCategory(ContentCategory::LANDSCAPES);
$filtersBuilder->addExcludedCategory(ContentCategory::PEOPLE);
$filtersBuilder->addExcludedCategory(ContentCategory::SELFIES);
// Make a search call with the options set in the filters builder
$response = $photosLibraryClient->searchMediaItems(
    ['filters' => $filtersBuilder->build()]
);

日期和日期範圍

日期篩選器會將傳回結果的日期限制為一組指定的天。有兩種方法可指定日期篩選器：日期篩選器。日期和範圍可能會一起使用符合任一日期或日期的媒體項目範圍。視需求選擇結果排序順序。可以修改。

日期

日期包含年、月和日。我們接受以下格式：

年
年，月
年，月，日
月/日
月

如果日期部分為空白或設為 0，系統會視為萬用字元。舉例來說，如果您設定了日期和月份，但不設定年份，就表示您的要求特定日期和月份中的項目：

REST

{
  "filters": {
    "dateFilter": {
      "dates": [
        {
          "month": 2,
          "day": 15
        }
      ]
    }
  }
}

Java

// Create a new com.google.type.Date object using a builder
// Note that there are different valid combinations as described above
Date dayFebruary15 = Date.newBuilder()
    .setDay(15)
    .setMonth(2)
    .build();
// Create a new dateFilter. You can also set multiple dates here
DateFilter dateFilter = DateFilter.newBuilder()
    .addDates(dayFebruary15)
    .build();
// Create a new Filters object
Filters filters = Filters.newBuilder()
    .setDateFilter(dateFilter)
    .build();
// Specify the Filters object in the searchMediaItems call
SearchMediaItemsPagedResponse response = photosLibraryClient.searchMediaItems(filters);

PHP

// Create a new Google\Type\Date object with a day and a month
// Note that there are different valid combinations as described above
$dateFebruary15 = new Date();
$dateFebruary15->setDay(15);
$dateFebruary15->setMonth(2);
$filtersBuilder = new FiltersBuilder();
// Add the date to the filter. You can also set multiple dates here
$filtersBuilder->addDate($dateFebruary15);
// Make a search call with the options set in the filters builder
$response = $photosLibraryClient->searchMediaItems(
    ['filters' => $filtersBuilder->build()]
);

日期範圍

日期範圍比日期更有彈性。舉例來說多個日期，日期範圍可用來查看一個月內的一組天數。

日期範圍包含 startDate 和 endDate，兩者皆須設定。每項範圍中的日期與日期：日期格式必須相同：如果開始日期是月份和月份時，結束日期也必須為年份和月份。範圍是套用的篩選器會包含開始和結束日期：

REST

{
  "filters": {
    "dateFilter": {
      "ranges": [
        {
          "startDate": {
            "year": 2014,
            "month": 6,
            "day": 12
          },
          "endDate": {
            "year": 2014,
            "month": 7,
            "day": 13
          }
        }
      ]
    }
  }
}

Java

// Create new com.google.type.Date objects for two dates
Date day2014June12 = Date.newBuilder()
    .setDay(12)
    .setMonth(6)
    .setYear(2014)
    .build();
Date day2014July13 = Date.newBuilder()
    .setDay(13)
    .setMonth(7)
    .setYear(2014)
    .build();
// Create a DateRange from these two dates
DateRange dateRange = DateRange.newBuilder()
    .setStartDate(day2014June12)
    .setEndDate(day2014July13)
    .build();
// Create a new dateFilter with the date range. You can also set multiple date ranges here
DateFilter dateFilter = DateFilter.newBuilder()
    .addRanges(dateRange)
    .build();
// Create a new Filters object
Filters filters = Filters.newBuilder()
    .setDateFilter(dateFilter)
    .build();
// Specify the Filters object in the searchMediaItems call
SearchMediaItemsPagedResponse response = photosLibraryClient.searchMediaItems(filters);

PHP

// Create two new Google\Type\Date objects
    $date2014June12 = new Date();
    $date2014June12->setDay(12);
    $date2014June12->setMonth(6);
    $date2014June12->setYear(2014);

    $date2014July13 = new Date();
    $date2014July13->setDay(13);
    $date2014July13->setMonth(7);
    $date2014July13->setYear(2014);

    // Add the two dates as a date range to the filter
    // You can also set multiple date ranges here
    $filtersBuilder = new FiltersBuilder();
    $filtersBuilder->addDateRange($date2014June12, $date2014July13);

    // Make a search call with the options set in the filters builder
    $response = $photosLibraryClient->searchMediaItems(
        ['filters' => $filtersBuilder->build()]
    );

將日期和日期範圍合併

您可以使用多個日期和多個日期範圍。符合以下條件的項目包含上述任一日期的結果。不同的日期和日期範圍不必依循相同格式，但是開始與結束日期個別範圍的用途：

REST

{
  "filters": {
    "dateFilter": {
      "dates": [
        {
          "year": 2013
        },
        {
          "year": 2011,
          "month": 11
        }
      ],
      "ranges": [
        {
          "startDate": {
            "month": 1
          },
          "endDate": {
            "month": 3
          }
        },
        {
          "startDate": {
            "month": 3,
            "day": 24
          },
          "endDate": {
            "month": 5,
            "day": 2
          }
        }
      ]
    }
  }
}

Java

// Create a new com.google.type.Date object for the year 2013
Date day2013 = Date.newBuilder()
    .setYear(2013)
    .build();
// Create a new com.google.type.Date object for November 2011
Date day2011November = Date.newBuilder()
    .setMonth(11)
    .setYear(2011)
    .build();
// Create a date range for January to March
DateRange dateRangeJanuaryToMarch = DateRange.newBuilder()
    .setStartDate(Date.newBuilder().setMonth(1).build())
    .setEndDate(Date.newBuilder().setMonth(3).build())
    .build();
// Create a date range for March 24 to May 2
DateRange dateRangeMarch24toMay2 = DateRange.newBuilder()
    .setStartDate(Date.newBuilder().setMonth(3).setDay(24).build())
    .setEndDate(Date.newBuilder().setMonth(5).setDay(2).build())
    .build();
// Create a new dateFilter with the dates and date ranges
DateFilter dateFilter = DateFilter.newBuilder()
    .addDates(day2013)
    .addDates(day2011November)
    .addRanges(dateRangeJanuaryToMarch)
    .addRanges(dateRangeMarch24toMay2)
    .build();
// Create a new Filters object
Filters filters = Filters.newBuilder()
    .setDateFilter(dateFilter)
    .build();
// Specify the Filter object in the searchMediaItems call
SearchMediaItemsPagedResponse response = photosLibraryClient.searchMediaItems(filters);

PHP

// Create a new Google\Type\Date object for the year 2013
$date2013 = new Date();
$date2013->setYear(2013);

// Create a new Google\Type\Date object for November 2011
$dateNovember2011 = new Date();
$dateNovember2011->setMonth(11);
$dateNovember2011->setYear(2011);

$filtersBuilder = new FiltersBuilder();

// Create a date range for January to March
$filtersBuilder->addDateRange((new Date())->setMonth(1),
    (new Date())->setMonth(3));

// Create a date range for March 24 to May 2
$filtersBuilder->addDateRange((new Date())->setMonth(3)->setDay(24),
    (new Date())->setMonth(5)->setDay(2));

$filtersBuilder->addDate($date2013);
$filtersBuilder->addDate($dateNovember2011);

// Make a search call with the options set in the filters builder
$response = $photosLibraryClient->searchMediaItems(
    ['filters' => $filtersBuilder->build()]
);

媒體項目功能

功能篩選器可限制只顯示含有特定功能的項目結果，例如，在 Google 相簿應用程式中標示為最愛。

我的收藏

加入 FAVORITES 個項目功能 FeatureFilter。只傳回使用者已加入收藏的媒體項目：

REST

{
  "filters" : {
    "featureFilter": {
      "includedFeatures": [
        "FAVORITES"
      ]
    }
  }
}

Java

// Create a new FeatureFilter for favorite media items
FeatureFilter featureFilter = FeatureFilter.newBuilder()
    .addIncludedFeatures(Feature.FAVORITES)
    .build();
// Create a new Filters object
Filters filters = Filters.newBuilder()
    .setFeatureFilter(featureFilter)
    .build();
// Specify the Filters object in the searchMediaItems call
SearchMediaItemsPagedResponse response = photosLibraryClient.searchMediaItems(filters);

PHP

// Create a new FeatureFilter for favorite media items
$filtersBuilder = new FiltersBuilder();
$filtersBuilder->addIncludedFeature(Feature::FAVORITES);

// Make a search call with the options set in the filters builder
$response = $photosLibraryClient->searchMediaItems(
    ['filters' => $filtersBuilder->build()]
);

媒體類型

搜尋結果的類型限定可以是 photo 或影片。

相片

PHOTO 可以是下列任一圖片格式：

BMP	JPG
GIF	PNG
HEIC	TIFF
ICO	WEBP

也包含 iOS 即時相片、動態相片等特殊相片類型。全景、全景相片和 VR 相片。

影片

VIDEO 可以是各種影片格式：

3GP	MMV
3G2	MOD
ASF	MOV
AVI	MP4
DIVX	油耗 (MPG)
M2T	MTS
M2TS	TOD
M4V	WMV
MKV

VIDEO 也包含下列特殊的影片格式： VR 影片、使用 Google 相簿製作的慢動作影片和動畫應用程式。

下列範例使用 PHOTO 進行篩選：

REST

{
  "filters": {
    "mediaTypeFilter": {
      "mediaTypes": [
        "PHOTO"
      ]
    }
  }
}

Java

// Create a new MediaTypeFilter for Photo media items
MediaTypeFilter mediaType = MediaTypeFilter.newBuilder()
    .addMediaTypes(MediaType.PHOTO)
    .build();
// Create a new Filters object
Filters filters = Filters.newBuilder()
    .setMediaTypeFilter(mediaType)
    .build();
// Specify the Filters object in the searchMediaItems call
SearchMediaItemsPagedResponse response = photosLibraryClient.searchMediaItems(filters);

PHP

// Create a new MediaTypeFilter for Photo media items
$filtersBuilder = new FiltersBuilder();
$filtersBuilder->setMediaType(MediaType::PHOTO);

// Make a search call with the options set in the filters builder
$response = $photosLibraryClient->searchMediaItems(
    ['filters' => $filtersBuilder->build()]
);

無法合併多個媒體類型篩選器。

排除非應用程式建立的資料

如要排除未由應用程式建立的媒體項目，您可以設定 excludeNonAppCreatedData 篩選器，如以下範例所示：

REST

{
  "filters": {
    "excludeNonAppCreatedData": true
  }
}

Java

// Create a new Filters object that excludes media not created by your app
Filters filters = Filters.newBuilder()
    .setExcludeNonAppCreatedData(true)
    .build();

// Specify the Filters object in the searchMediaItems call
SearchMediaItemsPagedResponse response = photosLibraryClient.searchMediaItems(filters);

PHP

// Create a new Filters object that excludes media not created by your app
$filtersBuilder = new FiltersBuilder();
$filtersBuilder->setExcludeNonAppCreatedData(true);

// Make a search call with the options set in the filters builder
$response = $photosLibraryClient->searchMediaItems(
    ['filters' => $filtersBuilder->build()]
);

請注意，如果您使用 .readonly.appcreateddata敬上範圍內，這個篩選器就會被忽略。

封存狀態

您的使用者可能封存了部分相片。根據預設，已封存的相片而不會傳回搜尋結果。如要納入已封存的項目，可以在篩選器，如以下範例所示：

REST

{
  "filters": {
    "includeArchivedMedia": true
  }
}

Java

// Create a new Filters object that includes archived media
Filters filters = Filters.newBuilder()
    .setIncludeArchivedMedia(true)
    .build();

// Specify the Filters object in the searchMediaItems call
SearchMediaItemsPagedResponse response = photosLibraryClient.searchMediaItems(filters);

PHP

// Create a new Filters object that includes archived media
$filtersBuilder = new FiltersBuilder();
$filtersBuilder->setIncludeArchivedMedia(true);

// Make a search call with the options set in the filters builder
$response = $photosLibraryClient->searchMediaItems(
    ['filters' => $filtersBuilder->build()]
);

合併篩選器

不同類型的篩選器可以搭配使用。只有符合以下所有項目的項目會傳回要求的功能

合併篩選器時，各篩選器類型的格式設定限制就像單獨使用一樣在下列範例中，只有相片歸類為「SPORT」，且使用 2014 年或 2010 年已傳回：

REST

{
  "filters": {
    "contentFilter": {
      "includedContentCategories": [
        "SPORT"
      ]
    },
    "dateFilter": {
      "dates": [
        {
          "year": 2014
        },
        {
          "year": 2010
        }
      ]
    },
    "mediaTypeFilter": {
      "mediaTypes": [
        "PHOTO"
      ]
    }
  }
}

Java

// Create a new ContentFilter that only includes SPORT items
ContentFilter contentFilter = ContentFilter.newBuilder()
    .addIncludedContentCategories(ContentCategory.SPORT)
    .build();
// Create a new media type filter that only includes PHOTO media items
MediaTypeFilter mediaTypeFilter = MediaTypeFilter.newBuilder()
    .addMediaTypes(MediaType.PHOTO)
    .build();
// Create a new DateFilter that only includes items from 2010 or 2014
Date year2014 = Date.newBuilder().setYear(2014).build();
Date year2010 = Date.newBuilder().setYear(2010).build();
DateFilter dateFilter = DateFilter.newBuilder()
    .addDates(year2010)
    .addDates(year2014)
    .build();
// Create a new Filters object combining these filters
Filters filters = Filters.newBuilder()
    .setDateFilter(dateFilter)
    .setMediaTypeFilter(mediaTypeFilter)
    .setContentFilter(contentFilter)
    .build();
// Specify the Filter object in the searchMediaItems call
SearchMediaItemsPagedResponse response = photosLibraryClient.searchMediaItems(filters);

PHP

// Create a new ContentFilter
$filtersBuilder = new FiltersBuilder();
// Only include SPORT items
$filtersBuilder->addIncludedCategory(ContentCategory::SPORT);
// Only include PHOTO media items
$filtersBuilder->setMediaType(MediaType::PHOTO);
// Only include items from 2010 or 2014
$year2014 = new Date();
$year2014->setYear(2014);
$year2010 = new Date();
$year2010->setYear(2010);
$filtersBuilder->addDateRange($year2010, $year2014);

// Make a search call with the options set in the filters builder
// Filters have been combined in the filter builder
$response = $photosLibraryClient->searchMediaItems(
    ['filters' => $filtersBuilder->build()]
);

將搜尋結果排序

只有使用日期篩選器的查詢可以排序。

如果您沒有指定排序選項，則結果會按遞減順序 (由新到舊)。

下表列出 orderBy 參數支援的選項：

`orderBy` 參數
`MediaMetadata.creation_time desc`	以遞減順序傳回媒體項目 (由新到舊)
`MediaMetadata.creation_time`	以遞增順序傳回媒體項目 (由舊到新)

以下範例會傳回 2017 年的所有媒體項目，顯示最舊的模型名稱

REST

{
  "filters": {
    "dateFilter": {
      "dates": [
        {
          "year": 2017
        }
      ]
    }
  },
  "orderBy": "MediaMetadata.creation_time"
}

Java

// Create a new dateFilter for the year 2017.
DateFilter dateFilter = DateFilter.newBuilder()
        .addDates(Date.newBuilder().setYear(2017))
        .build();

// Create a new Filters object
Filters filters = Filters.newBuilder()
        .setDateFilter(dateFilter)
        .build();

// Sort results by oldest item first.
final OrderBy newestFirstOrder = OrderBy.MEDIAMETADATA_CREATION_TIME;

// Specify the filter and sort order in the searchMediaItems call.
SearchMediaItemsPagedResponse response
        = photosLibraryClient.searchMediaItems(filters, newestFirstOrder);

PHP

// Create a new dateFilter for the year 2017.
$filtersBuilder = new FiltersBuilder();
$filtersBuilder->addDate((new Date())->setYear(2017));

// Make a search call with the options set in the filters builder and sort
// the results by oldest item first.
$response = $photosLibraryClient->searchMediaItems(
    [
        'filters' => $filtersBuilder->build(),
        'orderBy' => OrderBy::MEDIAMETADATA_CREATION_TIME
    ]
);