如何以字符串格式获取数组值

Question

我正在从多个复选框中获取值

<%for med_for in ['Self','Father', 'Mother', 'Spouse', 'Child_1', 'Child_2']%>
    <label style="display: inline-block;margin: 6px;"> <%=f.check_box :mediclaim_for,{ multiple: true }, :value=>med_for %>
    <%= med_for %> </label>
<%end%>

我有一个像这样的数组：

[
  "0", "{:value=>\"Self\"}",
  "0", "{:value=>\"Father\"}", 
  "0", "{:value=>\"Mother\"}",
  "0", "{:value=>\"Spouse\"}",
  "0", "0"
]

在控制器中

  cand_dtl=params[:my_detail]
  medi_for_array = cand_dtl[:mediclaim_for].inspect //getting above array 
  abort medi_for_array.map{|s| s[/\{:value=>\"(.*)\"\}/, 1]}.compact

我怎么只能得到像这样的值：

"Self", "Father", "Mother", "Spouse"

Answer 1

a =    [
  "0", "{:value=>\"Self\"}", "0", "{:value=>\"Father\"}",        
  "0", "{:value=>\"Mother\"}",       
  "0", "{:value=>\"Spouse\"}", "0", "0"       
]     
a.map{|s| s[/\{:value=>\"(.*)\"\}/, 1]}.compact
# => ["Self", "Father", "Mother", "Spouse"]

Answer 2

arr.reject { |s| s == '0' }.map { |r| eval(r)[:value] }