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我有一個使用Rabl的和mongoid 3.1.0一個簡單的應用程序,這個動作:多個數據庫查詢
# index
@products = current_shop.products
的Rabl的代碼如下所示:
# index.json.rabl
collection @products
extends 'api/products/show'
# show.json.rabl
object @product
attributes :id
當我打它,日誌顯示4個有關@products請求:
MOPED: 127.0.0.1:27017 QUERY database=bamboo_development collection=products selector={"$query"=>{"shop_id"=>"511c7866fd896b1908000002"}, "$orderby"=>{:_id=>1}} flags=[:slave_ok] limit=-1 skip=0 batch_size=nil fields=nil (0.5682ms)
MOPED: 127.0.0.1:27017 QUERY database=bamboo_development collection=products selector={"$query"=>{"shop_id"=>"511c7866fd896b1908000002"}, "$orderby"=>{:_id=>1}} flags=[:slave_ok] limit=-1 skip=0 batch_size=nil fields=nil (1.1139ms)
MOPED: 127.0.0.1:27017 QUERY database=bamboo_development collection=products selector={"$query"=>{"shop_id"=>"511c7866fd896b1908000002"}, "$orderby"=>{:_id=>1}} flags=[:slave_ok] limit=0 skip=0 batch_size=nil fields=nil (0.4492ms)
MOPED: 127.0.0.1:27017 QUERY database=bamboo_development collection=products selector={"$query"=>{"shop_id"=>"511c7866fd896b1908000002"}, "$orderby"=>{:_id=>1}} flags=[:slave_ok] limit=0 skip=0 batch_size=nil fields=nil (0.4332ms)
當我這樣做:
@products = current_shop.products.search(params[:query])
render text: @products.map(&:name).join(",")
我只得到相關@products一個請求:
MOPED: 127.0.0.1:27017 QUERY database=bamboo_development collection=products selector={"shop_id"=>"511c7866fd896b1908000002"} flags=[:slave_ok] limit=0 skip=0 batch_size=nil fields=nil (0.4611ms)
的重複查詢看起來很奇怪,沒有人知道爲什麼出現這種情況?它不會調用子對象,只是有點不同的集合查詢,從我看到的。
嘗試@products = current_shop.products.to_a – Aymeric 2013-02-22 23:52:42