與散列數組合並哈希基於值在共享密鑰

予先從以下：使用查找陣列去通的API與散列數組合並哈希基於值在共享密鑰

@todd.each do |x| 
    @num << x[:num] 
end

然後：

@prod = [] 
@num = [] 
@todd = [{:sellersku=>"2273500028", :num=>"B0076E32F8", :price=>"15.49"}, 
{:sellersku=>"5154464774", :num=>"B00013J6HY", :price=>"445.94"}]

然後創建一個查找數組將各種數據加載到結果中：

@num.each do |x| 
call_api(x) #I left out the code that populates the variables below.. 
results = {:num => x, 
:vendor => vendor, :type => type, :color => @color, :image => hi_image 
} 
end

當以上完成調用api時，我想合併@ todd數組和結果數組放入散列的@prod數組中。造成這種情況。

[{:sellersku=>"2273500028", :num=>"B0076E32F8", :price=>"15.49", 
:vendor => "Boss", :type => "Shoes", :color => "Blue", :image => boss.jpg}, 
{:sellersku=>"5154464774", :num=>"B00013J6HY", :price=>"34.49", 
:vendor => "Converse", :type => "Shirt", :color => "Orange", 
:image => cons.jpg}]

來源

2015-07-01 ToddT

我不知道你想做什麼？爲什麼不能簡單地填充現有@todd哈希（或複製）與信息：'@prod = @ todd.map {| H | h.merge（call_api h [：num]）}'...假設'call_api'返回一個安靜的值。你試圖達到什麼樣的差異？ – Myst

所以我遇到的問題是發送數量通過調用API，然後當結果哈希得到填充合併@託德哈希，以便在每個和正確的價格上的數字匹配與正確的數字合併。有道理？ – ToddT

@prod = [] 
@num = [] 
@todd = [ 
    {:sellersku=>"2273500028", :num=>"B0076E32F8", :price=>"15.49"}, 
    {:sellersku=>"5154464774", :num=>"B00013J6HY", :price=>"445.94"} 
] 

@todd.each do |hash| 
    serial_number = hash[:num] 

    # EXTERNAL CALL TO API 
    info = api_call(serial_number) #likely returns json 
    # parse into new hash called results 

    results = { 
    :vendor => vendor, 
    :type => type, 
    :color => @color, 
    :image => hi_image 
    } 

    @prod << hash.merge(results) 
end 

@prod 
# after iteration, @prod will have all the information you are looking for.

來源

2015-07-01 03:20:26 Jay

與散列數組合並哈希基於值在共享密鑰

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