Question

我在一个阵列＆amp;哈希兔洞，请原谅冗长的问题。

我正在尝试在视图中显示值。我通过将哈希值组合在一起并使用值对它们进行分组来创建哈希值，因此我的数据如下所示：

[
  {"447478xxxxxx"=>[
                     {:cbrs=>[
                               {"telephone_number"=>"447478xxxxxx", "type"=>"cbr"}
                             ]
                     }, 
                     {:pupil_calls=>"0"}, 
                     {:returned_calls=>"0"}
                    ]
  }, 
  {"447440xxxxxx"=>[
                    {:cbrs=>[
                              {"telephone_number"=>"447440xxxxxx", "type"=>"cbr"}
                            ]
                    }, 
                    {:pupil_calls=>"0"}, 
                    {:returned_calls=>[
                                       {"from_number"=>"447952xxxxxx", "to_number"=>"447440xxxxxx", "type"=>"call", "duration"=>50, "direction"=>"outbound"}, 
                                       {"from_number"=>"447952xxxxxx", "to_number"=>"447440xxxxxx", "type"=>"call", "duration"=>nil, "direction"=>"outbound"}
                                       ]
                    }
                   ] 
  },
  {"447588xxxxxx"=>[
                      {:cbrs=>"0"}, 
                      {:pupil_calls=>[
                                       {"from_number"=>"447588xxxxxx", "to_number"=>"441483xxxxxx", "type"=>"call", "duration"=>5, "direction"=>"inbound"}
                                      ]
                      }, 
                      {:returned_calls=>"0"}
                    ]
  }
]

在我看来，我正试图做这类事情

<% array.each do |a| %>

<%= a.first_key %> #this is the number at the start each group eg 447478xxxxxx`

<% a.cbrs.each do |c| %>

   <%=c.type%> #for example, this is just limited sample of the scope of the data

<%end%>

<% a.pupil_calls.each do |c| %>

   <%=c.from_number%> - <%=c.to_number%> 

<%end%>

<% a.returned_calls.each do |c| %>

   <%=c.duration%>

<%end%>

<%end%>

但是我不知道如何访问数组中哈希内数组内哈希中包含的值！（想想我做对了。）

编辑：我所追求的内容很简单 - 我只是想为数组中的每个项目做这样的事情：

 Tel: 447478xxxxxx 
 CBRS: 1 
 Calls: 0
 Returned: 0

 Tel: 447440xxxxxx
 CBRS: 1
 Calls: 0
 Returned Calls: 2 
 Call first returned about 5 minutes after CBR #This would be using created_at dates for example, there is a lot of info I didn't include in my sample data.   
 Returned Call 1: recording link
 Returned Call 2: recording link

希望有帮助，我只是在没有html等的情况下写出输出。上面的内容是循环哈希数组和循环遍历它的每个哈希......

Answer 1

这可能会被重构4到5次，但这应该会让你得到你所追求的：

def val_check(num)
  if num.is_a? Array
    num.size
  else
    num
  end
end


phone_numbers.each do |number|
  number.each do |key, value|
    puts "Tel: #{key}"
    puts "CBRS: #{val_check(value.first[:cbrs])}"
    puts "Calls: #{val_check(value[1][:pupil_calls])}"
    puts "Returned Calls: #{val_check(value[2][:returned_calls])}"
  end
end

输出：

Tel: 447478xxxxxx
CBRS: 1
Calls: 0
Returned Calls: 0
Tel: 447440xxxxxx
CBRS: 1
Calls: 0
Returned Calls: 2
Tel: 447588xxxxxx
CBRS: 0
Calls: 1
Returned Calls: 0

Answer 2

你的第一个错误在哪里抛出？看起来你需要访问c [“from_number”]和c [“to_number”]之类的东西。

访问散列数组中的值，其中值是散列数组

2 个答案: