[英]PHP MongoDB\Client updateOne add new field to existing document array
我正在努力更新文檔並將新元素(字段)添加到它的現有數組中,而不會在更新時丟失數組元素。
這是我的代碼,如果尚不存在則將新文檔插入到集合中(upsert):
$updateResult = $collection->findOneAndUpdate(
[
'recording-id' => $out['recording']->id
],
['$set' => [
'release' => [
'id' => $out['release']->id,
'title' => $out['release']->title,
'date' => $out['release']->date,
'country' => $out['release']->country
],
'artist' => [
'id' => $out['artist']->id,
'name' => $out['artist']->name,
],
'recording' => [
'id' => $out['recording']->id,
'title' => $out['recording']->title,
'score' => $out['recording']->score,
'length' => $out['recording']->length,
'release-count' => count($out['recording']->releases),
],
'release-group' => [
'id' => $out['release-group']['id'],
'title' => $out['release-group']['title'],
'first-release-date'=>$out['release-group']['first-release-date'],
'primary-type' => $out['release-group']['primary-type'],
'musicbrainz' => $out['release-group']['musicbrainz'],
'url-rels' => $out['release-group']['url-rels'],
'coverart' => $out['release-group']['coverart']
],
'execution' => [
'firstfind' => $out['execution']->time
]
]
],
['upsert' => true,
'projection' =>
[
'_id' => 0,
'release' => 1,
'artist' => 1,
'recording' => 1,
'release-group' => 1,
'execution' => 1
],
'returnDocument' => MongoDB\Operation\FindOneAndUpdate::RETURN_DOCUMENT_AFTER,
]
);
所以現在我在集合中有一個現有文檔:
{
"_id" : ObjectId("5d1a6aaf5ecc8001ee858f6c"),
"recording-id" : "d0d439f9-5324-4728-8706-2da39adb89c5",
"artist" : {
"id" : "9d97b077-b28d-4ba8-a3d9-c71926e3b2b6",
"name" : "Gordon Lightfoot"
},
"recording" : {
"id" : "d0d439f9-5324-4728-8706-2da39adb89c5",
"title" : "Sundown",
"score" : 100,
"length" : 184000,
"release-count" : 2
},
"release" : {
"id" : "0c008d76-2bc9-44a3-854b-0a08cde89337",
"title" : "All Live",
"date" : "2012-04-24",
"country" : "CA"
},
"release-group" : {
"id" : "0a5d5f33-8e9d-4fa4-b622-a95e4218a3c4",
"title" : "All Live",
"first-release-date" : "2012-04-24",
"primary-type" : "Album",
"musicbrainz" : "https://musicbrainz.org/release-group/0a5d5f33-8e9d-4fa4-b622-a95e4218a3c4",
"url-rels" : "https://musicbrainz.org/ws/2/release-group/0a5d5f33-8e9d-4fa4-b622-a95e4218a3c4?inc=url-rels&fmt=json",
"coverart" : null
}
}
現在,我想更新此文檔,並將新字段添加到數組中。 新字段將添加到某些字段。 這是執行此操作的代碼:
$collection = (new MongoDB\Client)->stream->musicbrainz;
$updateResult = $collection->updateOne(
[
'recording-id' => $out['recording']['id']
],
['$addToSet' => [
'artist' => [
'wikiQiD' => $out['artist']['qid'],
'wiki-extract' => $out['artist']['wiki-extract'],
'wiki-pageid' => $out['artist']['pageid'],
],
'release-group' => [
'wikiQiD' => $out['release-group']['qid'],
'wiki-extract' => $out['release-group']['wiki-extract']
]
]
],
[
'upsert' => true,
'returnDocument' => MongoDB\Operation\FindOneAndUpdate::RETURN_DOCUMENT_AFTER,
]
);
我注意到有“ $ addToSet”和“ $ push”命令,可以使用幫助來解決這兩個命令之間的區別。
如果文檔中不存在要更新的字段,則$ push將以值作為元素的數組字段添加。
除非該值已存在,否則$ addToSet運算符會向該數組添加一個值,在這種情況下,$ addToSet對該數組不執行任何操作。
我進行了一些谷歌搜索,並閱讀了MongoDB / Client UpdateOne函數,但似乎找不到找到將這些字段附加到現有數組的方法。
我得到的錯誤是:
Fatal error: Uncaught MongoDB\\Driver\\Exception\\BulkWriteException: The field 'artist' must be an array but is of type object in document {_id: ObjectId('5d1a6aaf5ecc8001ee858f6c')} in ...
我知道以下幾點:
任何見解或建設性批評都應受到贊賞,請避免發火焰。
這是我最后用來使它執行我想要的工作的工作代碼。
只需設置您的字段名稱和值就很簡單,而mongo會更新找到的記錄,並將其替換為發送給它的數組。 無需推動或任何其他操作。
function firstFindMongoUpdate($out) {
$collection = (new MongoDB\Client)->stream->musicbrainz;
$updateResult = $collection->findOneAndUpdate(
[
'recording-id' => $out['recording']->id
],
['$set' => [
'query' => $out['query'],
'release' => [
'id' => $out['release']->id,
'title' => $out['release']->title,
'date' => $out['release']->date,
'country' => $out['release']->country,
'label' => $out['release']->label,
],
'artist' => [
'id' => $out['artist']->id,
'name' => $out['artist']->name,
'wiki' => $out['artist']->wiki,
],
'recording' => [
'id' => $out['recording']->id,
'title' => $out['recording']->title, // sometimes contains apostophe ie; Bill‘s Love (option ] key)
'score' => $out['recording']->score,
'length' => $out['recording']->length,
'release-count' => count($out['recording']->releases)
],
'release-group' => [
'id' => $out['release-group']['id'],
'title' => $out['release-group']['title'],
'first-release-date'=>$out['release-group']['first-release-date'],
'primary-type' => $out['release-group']['primary-type'],
'musicbrainz' => $out['release-group']['musicbrainz'],
'url-rels' => $out['release-group']['url-rels'],
'coverart' => $out['release-group']['coverart'],
'wiki' => $out['release-group']['wiki']
],
'execution' => [
'artistQuery' => $out['execution']->artistQuery,
'recordingQuery'=> $out['execution']->recordingQuery,
'time' => $out['execution']->time
]
]
],
['upsert' => true,
'projection' =>
[
'_id' => 1,
'query' => 1,
'release' => 1,
'artist' => 1,
'recording' => 1,
'release-group' => 1,
'execution' => 1
],
'returnDocument' => MongoDB\Operation\FindOneAndUpdate::RETURN_DOCUMENT_AFTER,
]
);
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