黑猩猩邮件数据获取 .each rails

Question

data 我想获取数据，其中 REF_CODE 将为 nill 我如何使用循环或 .ech

获取这些字段

@body={"members"=>[{"merge_fields"=>{"REF_CODE"=>"", "ROOT_URL"=>"ali.com"}} , {"merge_fields"=>{"REF_CODE"=>"12asdja", "ROOT_URL"=>"columbusnaviggator.com"}}, {"merge_fields"=>{"REF_CODE" =>"12asja", "ROOT_URL"=>"columbusnaviggator.com"}}, {"merge_fields"=>{"REF_CODE"=>"12asja", "ROOT_URL"=>"columbusnaviggator.com"}}, {"merge_fields"=>{"REF_CODE"=>"asa12asdja", "ROOT_URL"=>"columbusnaviggator.com"}}, {"merge_fields"= >{"REF_CODE"=>"12assss", "ROOT_URL"=>"columbusnaviggator.com"}}, {"merge_fields"=>{"REF_CODE"=>"e5118ec91d", "ROOT_URL"=>""}}, {"merge_fields"=>{"REF_CODE"=>"d5a20240aa", "ROOT_URL"=>"Columbusnavigator.com"}}, { "merge_fields"=>{"REF_CODE"=>"09896bcf0c", "ROOT_URL"=>"localhost:3000"}}, {"merge_fields"=>{"REF_CODE"=> "b4a4876c09", "ROOT_URL"=>"localhost:3000"}}]}

Answer 1

@body['members'].select {|a| a['merge_fields']['REF_CODE']== ''}
# [{"merge_fields"=>{"REF_CODE"=>"", "ROOT_URL"=>"ali.com"}}]

上面的 return 字段数组 nil REF_CODE