Question

在我的laravel 5.7应用程序中，我使用Elasticsearch，并且具有批量功能以相关的表决项来填充我的投票。

问题是我在出现错误时无法添加相关的表决项目数组：

18:00

在方法（错误行已取消注释并标记）：

{"error":{"root_cause":[{"type":"mapper_parsing_exception","reason":"object mapping for [vote_items] tried to parse field [null] as object, but found a concrete value"}],"type":"mapper_parsing_exception","reason":"object mapping for [vote_items] tried to parse field [null] as object, but found a concrete value"},"status":400}

如果我取消注释行：

    public static function bulkVotesToElastic()
    {
        $elastic = app(\App\Elastic\Elastic::class);

        $elasticsearch_root_index  = config('app.elasticsearch_root_index');
        $elasticsearch_type        = with(new Vote)->getElasticsearchType();

        Vote::chunk(100, function ($Votes) use ($elastic, $elasticsearch_root_index, $elasticsearch_type) {
            foreach ($Votes as $nextVote) {

                if ($nextVote->status!= 'A') continue;   // only active votes must be saved in elasticsearch

                $voteCategory= $nextVote->voteCategory;
                if (empty($voteCategory)) continue;     // only votes with valid category must be saved in elasticsearch
                if ( !$voteCategory->active ) continue; // only votes with active category must be saved in elasticsearch

                $voteItems = VoteItem
                    ::getByVote($nextVote->id)
                    ->orderBy('ordering', 'asc')
                    ->get();
                $relatedVoteItemsList= [];
                foreach ($voteItems as $nextVoteItem) {
                    $relatedVoteItemsList[]= $nextVoteItem->name;     // THIS LINE RAISE ERROR!
//                    $relatedVoteItemsList[]= [ $nextVoteItem->name ]; // THIS LINE RAISE ERROR TOO!
//                    $relatedVoteItemsList[]= [ 'vote_item_name' => $nextVoteItem->name ];   // THIS LINE DOES NOT RAISE ERROR!
                }

                $elastic->index([
                    'index' => $elasticsearch_root_index,
                    'type'  => $elasticsearch_type,
                    'id'    => $nextVote->id,
                    'body'  => [
                        'id'          => $nextVote->id,
                        'slug'        => $nextVote->slug,
                        'name'        => $nextVote->name,
                        'description' => $nextVote->description,
                        'created_at'  => $nextVote->created_at,
                        'vote_items'  => $relatedVoteItemsList,
                        'category_id' => $voteCategory->id,
                        'category'    => [
                            'name'         => $voteCategory->name,
                            'slug'         => $voteCategory->slug,
                            'created_at'   => $voteCategory->created_at,
                        ],
                    ]
                ]);
            }
        });
    }

并在上方两行添加注释，然后批量显示即可，但是我的搜索条件不适用于vote_items

//                    $relatedVoteItemsList[]= [ 'vote_item_name' => $nextVoteItem->name ];   // THIS LINE DOES NOT RAISE ERROR!

我不知道哪种语法有效？

更新＃2：查看提供的文档链接，我看到：

$elasticQuery = [
    "bool" => [
        'must' => [
            [
                "multi_match" => [
                    "query"  => $text,
                    "type"   => "cross_fields",
                    "fields" => [
                        "name^4",
                        "description",
                        "vote_items^2"
                    ]
                ],
            ],
        ],
    ]
];

我想保存数据必须指出一些数据是嵌套的。

我将批量功能重新制作为：

PUT my_index
{
  "mappings": {
    "_doc": {
      "properties": {
        "user": {
          "type": "nested" 
        }
      }
    }
  }
}

但要查看映射：

    foreach ($Votes as $nextVote) {

        if ($nextVote->status!= 'A') continue;   // only active votes must be saved in elasticsearch

        $voteCategory= $nextVote->voteCategory;
        if (empty($voteCategory)) continue;     // only votes with valid category must be saved in elasticsearch
        if ( !$voteCategory->active ) continue; // only votes with active category must be saved in elasticsearch

        $voteItems = VoteItem
            ::getByVote($nextVote->id)
            ->orderBy('ordering', 'asc')
            ->get();
        $relatedVoteItemsList= [];
        foreach ($voteItems as $nextVoteItem) {
            $relatedVoteItemsList[]= [ 'vote_item_name' => $nextVoteItem->name ]; // VALID STRUCTURE ?
        }

        $elastic->index([
            'index' => $elasticsearch_root_index,
            'type'  => $elasticsearch_type,
            'id'    => $nextVote->id,
            'body'  => [
                'id'          => $nextVote->id,
                'slug'        => $nextVote->slug,
                'name'        => $nextVote->name,
                'description' => $nextVote->description,
                'created_at'  => $nextVote->created_at,
                'vote_items'  => $relatedVoteItemsList,
                'category_id' => $voteCategory->id,
                'category'    => [
                    'name'         => $voteCategory->name,
                    'slug'         => $voteCategory->slug,
                    'created_at'   => $voteCategory->created_at,
                ],
            ]
        ]);

我看不到钢笔标记为嵌套的，但查看样本我必须支持它？哪种方法可以正确地写入我的数据，使表决对象被标记为嵌套？

谢谢！

Answer 1

似乎vote_items是嵌套类型字段。像这样：

{
  "vote_items" : {
     "type": "nested",
     "properties": {
        "vote_item_name": {
           "type": "keyword"
        }
     }
  }
}

这是以下原因起作用的原因：

$relatedVoteItemsList[]= [ 'vote_item_name' => $nextVoteItem->name ];

要查询嵌套字段，您需要使用以下语法：

{
  "query": {
    "nested": {
      "path": "vote_items",
      "query": {
        "bool": {
          "must": [
            {
              "match": {
                "vote_items.vote_item_name": "xyz"
              }
            }
          ]
        }
      }
    }
  }
}

请注意，nested块具有path（提及要查询的嵌套类型字段），query（要在嵌套对象上运行的查询）。另请注意，字段名称应为完全限定名称，即<nested_field_name>.<property>，在这种情况下为vote_items.vote_item_name。

注意：上面的查询是如何使用索引映射的字段查询嵌套字段的示例。请根据您的需要进行修改。

有关如何查询nested fields的更多信息，请参见here。

Answer 2

您看到这个https://github.com/elasticquent/Elasticquent插件了吗？它具有索引和映射示例，例如：

protected $mappingProperties = array(
   'title' => array(
        'type' => 'string',
        'analyzer' => 'standard'
    )
);

如果您想根据自己的映射属性设置模型的类型映射，可以使用：

Book :: putMapping（$ ignoreConflicts = true）;

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