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我正在导入CSV并使用ActiveRecord创建行。该CSV是：显示相同的Ruby字符串不相等，为什么？
first_name,middle_name,last_name,degrees,email,induction_year (ie 2017),"induction_type (options: alumni, associate, faculty, honorary, student)"
John,Middle,Doe,"BA, MPH",[email protected],2017,alumni
我对导入方法看起来是这样的：
def import
CSV.foreach(@file.path, headers: true, header_converters: lambda {|field| field.partition(" ").first }, col_sep: ',') do |row|
member_params = row.to_hash
Member.create!(member_params)
end
end
但它抛出ActiveModel::UnknownAttributeError: unknown attribute 'first_name' for Member.编辑：这不是与会员一个问题，我可以创建成员，你会喜欢的东西期待Member.create!(first_name: 'test')
打开一个撬，我得到这个反馈：
[1] pry(#<InducteesUpload>)> member_params
=> {"first_name"=>"John",
"middle_name"=>"Middle",
"last_name"=>"Doe",
"degrees"=>"BA, MPH",
"email"=>"[email protected]",
"induction_year"=>"2017",
"induction_type"=>"alumni"}
[2] pry(#<InducteesUpload>)> member_params.keys.first == "first_name"
=> false
[3] pry(#<InducteesUpload>)> member_params.keys.first.encoding
=> #<Encoding:UTF-8>
添加更多：
[1] pry(#<InducteesUpload>)> member_params.keys
=> ["first_name",
"middle_name",
"last_name",
"degrees",
"email",
"induction_year",
"induction_type"]
[2] pry(#<InducteesUpload>)> member_params["first_name"] = "test"
=> "test"
[3] pry(#<InducteesUpload>)> member_params
=> {"first_name"=>"John",
"middle_name"=>"Middle",
"last_name"=>"Doe",
"degrees"=>"BA, MPH",
"email"=>"[email protected]",
"induction_year"=>"2017",
"induction_type"=>"alumni",
"first_name"=>"test"}
这不是与会员的你可以用上面的古怪看到的一个问题。但如果你真的想要的话会发布。
所以问题是在这里透露：
[6] pry(#<InducteesUpload>)> member_params.keys.first.bytes
=> [239, 187, 191, 102, 105, 114, 115, 116, 95, 110, 97, 109, 101]
[7] pry(#<InducteesUpload>)> "first_name".bytes
=> [102, 105, 114, 115, 116, 95, 110, 97, 109, 101]
你可以发布'会员'的代码吗？ – Kris
这听起来像问题是与成员...通常，如果您要保存到数据库，它将需要从'ActiveRecord :: Base'继承。 – Kris
'member_params.keys'的结果是什么？ –