列表窗口小部件仅列出最后一个哈希值ruby - 警告：第xx行的重复键忽略:: label

Question

开始潇洒

  

sweet_dashboard_project / jobs / list.rb：47：警告：重复密钥在   第47行忽略:: label sweet_dashboard_project / jobs / list.rb：47：   警告：第47行的重复键忽略:: value   sweet_dashboard_project / jobs / list.rb：47：警告：重复密钥在   第47行忽略:: label sweet_dashboard_project / jobs / list.rb：47：   警告：第47行的重复键忽略:: value   sweet_dashboard_project / jobs / list.rb：47：警告：重复密钥在   第47行忽略:: label sweet_dashboard_project / jobs / list.rb：47：   警告：第47行的重复键忽略::值

{"a"=>1}  
1
{"b"=>2}
2
{"c"=>1}
1
{"d"=>2}
2

{:label=>"d", :value=>"2"} 

  

它只打印最后一个哈希标签（d）和值。同样出现在   仪表板中的列表小部件。你能不能让我知道我怎么做   带来其他标签和价值观？

List.rb

    require "mysql2"

    SCHEDULER.every '5s' do

client = Mysql2::Client.new(:host => "10.2.2.1",:username => "abcuser",:database => 'testdb')

po1 = nil  

po2 = nil

po3 = nil

po4 = nil

p1=client.query("SELECT count(*) as p1 FROM testdb.tab1 WHERE (p='1')")

p2=client.query("SELECT count(*) as p2 FROM testdb.tab1 WHERE (p='2')")

p3=client.query("SELECT count(*) as p3 FROM testdb.tab1 WHERE (p='3')")

p4=client.query("SELECT count(*) as p4 FROM testdb.tab1 WHERE (p='4')")

p1.each do |i|
    puts i  # Prints {"a"=>1}
    puts i['p1'] #Prints 1
    po1 = i['p1']
    end

p2.each do |i|
        puts i # Prints {"b"=>2}
        puts i['p2'] # Prints 2
        po2 = i['p2'] 
        end

p3.each do |i|
        puts i # Prints {"c"=>1}
        puts i['p3'] # Prints 1
        po3 = i['p3'] 
        end

p4.each do |i|
        #puts i # Prints {"d"=>1}
        #puts i['p4'] # Prints 2
        po4 = i['p4'] 
        end

po = [ { :label=> "a", :value=> "#{po1}", :label=> "b", :value=> "#{po2}", :label=> "c", :value=> "#{po3}", :label=> "d", :value=> "#{po4}" } ]

    send_event('priority', { items: po })   
    end

Answer 1

这不是正确的哈希值，因为您重复了密钥:label和:value

po = [ { :label=> "a", :value=> "#{po1}", :label=> "b", :value=> "#{po2}", :label=> "c", :value=> "#{po3}", :label=> "d", :value=> "#{po4}" } ]

你需要将它重新组织成一个小哈希数组，而不是一个大哈希的数组。

po = [ { :label=> "a", :value=> "#{po1}"}, {:label=> "b", :value=> "#{po2}"}, {:label=> "c", :value=> "#{po3}"}, {:label=> "d", :value=> "#{po4}" } ]