mongodb/rails「異常：找不到特殊索引：2d爲：」

我有一個rails應用程序，其中有一些索引問題。我按名稱搜索地點。首先，我認爲它與addresses.coords有問題，但我不知道它。mongodb/rails「異常：找不到特殊索引：2d爲：」

搜索控制器的相關部分：

@practices = Practice.published 
    @practices = @practices.where(:"addresses.country" => params[:country].upcase) if params[:country].present? 

    if params[:location].present? && latlng = get_coordinates 
    @practices = @practices.near_sphere(:"addresses.coords" => latlng).max_distance(:"addresses.coords" => get_distance) 
    end 

    # now find doctors based on resulting practices 
    @doctors = Doctor.published.in("organization_relations.practice_id" => @practices.distinct(:_id))

完整的崩潰日誌：

Moped::Errors::OperationFailure (The operation: #<Moped::Protocol::Command 
    @length=255 
    @request_id=646 
    @response_to=0 
    @op_code=2004 
    @flags=[] 
    @full_collection_name="um-contacts.$cmd" 
    @skip=0 
    @limit=-1 
    @selector={:distinct=>"practices", :key=>"_id", :query=>{"deleted_at"=>nil,  "published_at"=>{"$lte"=>2012-11-05 15:17:14 UTC}, "addresses.country"=>"DE", "addresses.coords"=>{"$nearSphere"=>[13.4060912, 52.519171], "$maxDistance"=>0.01569612305760477}}} 
    @fields=nil> 
failed with error 13038: "exception: can't find special index: 2d for: { deleted_at: null, published_at: { $lte: new Date(1352128634313) }, addresses.country: \"DE\", addresses.coords: { $nearSphere: [ 13.4060912, 52.519171 ], $maxDistance: 0.01569612305760477 } }" 

See https://github.com/mongodb/mongo/blob/master/docs/errors.md 
for details about this error.): 
    app/controllers/search_controller.rb:16:in `index'

那索引的結果，不知道如何從嵌入地址查詢他們通過has_many。

> db.practices.getIndexes() 

[ 

    { 
    "v" : 1, 
    "key" : { 
     "_id" : 1 
    }, 
    "ns" : "um-contacts.practices", 
    "name" : "_id_" 
} 

]

幫助將非常感激！

編輯：看起來像的arent創造了adresses.coords指標，

db.system.indexes.find() 
{ "v" : 1, "key" : { "_id" : 1 }, "ns" : "um-contacts.users", "name" : "_id_" } 
{ "v" : 1, "key" : { "_id" : 1 }, "ns" : "um-contacts.doctors", "name" : "_id_" } 
{ "v" : 1, "key" : { "_id" : 1 }, "ns" : "um-contacts.collaborations", "name" : "_i 
{ "v" : 1, "key" : { "_id" : 1 }, "ns" : "um-contacts.practices", "name" : "_id_" }

，但應在實踐類中創建：

class Practice 
... 
embeds_many :addresses, cascade_callbacks: true, as: :addressable 
... 
field :name, type: String 
field :kind, type: String 
field :slug, type: String 

index({"addresses.coords" => '2d'}, { min: -180, max: 180, background: true }) 
index({name: 1}) 
index({slug: 1}, { unique: true }) 
...

任何人有一個想法，爲什麼它的失敗？

來源

2012-11-05 user1800569

您是否嘗試過運行db.practices.ensureIndex（{addresses.coords：「2d」}）？ – Alex

db.practices.ensureIndex（{「addresses.coords」：「2d」}）創建索引並且錯誤消失了，但不應該由上面的代碼完成？ – user1800569

嘗試重新創建索引。對於mongoid：

rake db:mongoid:create_indexes

來源

2012-12-12 17:17:55

mongodb/rails「異常：找不到特殊索引：2d爲：」

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