如何解析Wufoo形式的webhook散列来获取表单标签和值？

Question

我想解析这是我从Wufoo项目网络挂接API收到的哈希值。我这样做的多种形式，所以我不能像硬编码值：params['Field5']，因为我不知道有多少领域都有。

>> params.class 
    => Hash 
    >> params 
    => {"FieldStructure"=> 
     "{\"Fields\":[ 
     {\"Title\":\"Company Name\",\"Type\":\"text\",\"ID\":\"Field6\"}, 
     {\"Title\":\"Email\",\"Type\":\"email\",\"ID\":\"Field5\"} 
     ]}", 
"Field6"=>"testse", 
"Field5"=>"[email protected]", 
"CreatedBy"=>"public", 
"DateCreated"=>"2013-04-10 07:38:09", 
"EntryId"=>"21"} 

基本上，我想创建上面的属性从哈希对象：

company_name: "testse", email: "[email protected]" 

Answer 1

您可以：

1. 扫描FieldStructure字符串来确定所需的字段标识。
2. 然后使用IDS找到params哈希表所需的值

例子：

params = {"FieldStructure"=> 
    "{\"Fields\":[{\"Title\":\"Company Name\",\"Instructions\":\"\",\"IsRequired\":\"0\",\"ClassNames\":\"\",\"DefaultVal\":\"\",\"Page\":\"1\",\"Type\":\"text\",\"ID\":\"Field6\"}, 
    {\"Title\":\"Email\",\"Instructions\":\"\",\"IsRequired\":\"0\",\"ClassNames\":\"\",\"DefaultVal\":\"\",\"Page\":\"1\",\"Type\":\"email\",\"ID\":\"Field5\"}]}", 
"FormStructure"=> 
    "{\"Name\":\"TestForm\",\"Description\":\"This is my form. Please fill it out. It's awesome!\",\"RedirectMessage\":\"Great! Thanks for filling out my form!\",\"Url\":\"testform\",\"Email\":null,\"IsPublic\":\"1\",\"Language\":\"english\",\"StartDate\":\"2000-01-01 12:00:00\",\"EndDate\":\"2030-01-01 12:00:00\",\"EntryLimit\":\"0\",\"DateCreated\":\"2013-04-09 06:44:12\",\"DateUpdated\":\"2013-04-10 05:25:55\",\"Hash\":\"z7x3p3\"}", 
"Field6"=>"testse", 
"Field5"=>"[email protected]", 
"CreatedBy"=>"public", 
"DateCreated"=>"2013-04-10 07:38:09", 
"EntryId"=>"21", 
"IP"=>"46.205.117.55", 
"HandshakeKey"=>""} 

fields = params['FieldStructure'].scan(/Title\":\"(.+?)\".+?ID\":\"(.+?)\"/) 
#=> [["Company Name", "Field6"], ["Email", "Field5"]] 

Hash[fields.collect{ |field| 
    [ 
    field[0].gsub(/\s+/, "_").downcase.to_sym, 
    params[field[1]] 
    ] 
}] 
#=> {:company_name=>"testse", :email=>"[email protected]"}