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Ruby on rails mySQL导出字段的CSV中的空行在ruby CSV解析期间导致错误_Ruby On Rails_Ruby_Csv - Fatal编程技术网

Ruby on rails mySQL导出字段的CSV中的空行在ruby CSV解析期间导致错误

Ruby on rails mySQL导出字段的CSV中的空行在ruby CSV解析期间导致错误,ruby-on-rails,ruby,csv,Ruby On Rails,Ruby,Csv,我从一个旧系统中导出了一些粗糙的mySQL CSV,我正在解析并加载到一个新的RubyonRails应用程序中 以下是一个例子: "1","1","When a ticket is marked as Resolved, revert the assigned_to to the one who started it",,"7","1","1.00","0.00","2",NULL,NULL,"1","2009-06-04 16:40:37","2009-06-04 16:40:37",NULL

我从一个旧系统中导出了一些粗糙的mySQL CSV,我正在解析并加载到一个新的RubyonRails应用程序中

以下是一个例子:

"1","1","When a ticket is marked as Resolved, revert the assigned_to to the one who started it",,"7","1","1.00","0.00","2",NULL,NULL,"1","2009-06-04 16:40:37","2009-06-04 16:40:37",NULL,"0000-00-00 00:00:00";"2","2","Email notifications when ticket is assigned to someone",,"1","1","1.00","0.00","1",NULL,NULL,"1","2009-06-04 16:41:21","2009-06-04 16:41:21",NULL,"0000-00-00 00:00:00";"3","1","When a ticket is marked as Resolved, revert the assigned_to to the one who started it - and notify",,"7","1","1.00","0.00","2",NULL,NULL,"1","2009-06-09 18:10:47","2009-06-09 18:10:47",NULL,"0000-00-00 00:00:00";"4","3","Change Password Capability","Fix the forgot password capability (and for bonus points, add capability for user to change once logged in.","7","1","0.00","0.00","1",NULL,NULL,"9","2009-06-09 18:13:45","2009-06-09 18:13:45",NULL,"0000-00-00 00:00:00";"5","4","Manager View","Don't need listed:
  Milestone
  Status

Do need listed:
  Assigned To
  Position (since we're not assigning case numbers)","7","1","0.00","0.00","1",NULL,NULL,NULL,"2009-06-09 18:16:32","2009-06-09 18:16:32",NULL,"0000-00-00 00:00:00";"6","5","TICKETS: Remove Position / Assign ID","Don't really need to assign a position, instead would be better to automatically assign a ticket number and be able to sort on that.

Also, when you don't assign a position to a ticket, it breaks the system (or at least it doesn't show up and causes an error in the Manager View)","7","1","0.00","0.00","1",NULL,NULL,"9","2009-06-09 18:19:10","2009-06-09 18:19:10",NULL,"0000-00-00 00:00:00";"7","6","Manager View","Don't need listed:
- Milestone
- Status

Do need listed:
- Case ID (preferred)
- Position (until case id implemented)","7","1","0.00","0.00","1",NULL,NULL,"9","2009-06-09 18:24:07","2009-06-09 18:24:07",NULL,"0000-00-00 00:00:00";"8","5","TICKETS: Remove Position / Assign ID","Don't really need to assign a position, instead would be better to automatically assign a ticket number and be able to sort on that.

Also, when you don't assign a position to a ticket, it breaks the system (or at least it doesn't show up and causes an error in the Manager View)","7","1","0.00","0.00","1",NULL,NULL,NULL,"2009-06-09 18:35:00","2009-06-09 18:35:00",NULL,"0000-00-00 00:00:00";"9","7","Ability to \"assign\" projects to users","Some way, even manual in the database, to indicate which projects a user may access","7","1","0.00","0.00","1",NULL,NULL,"9","2009-06-09 18:45:16","2009-06-09 18:45:16",NULL,"0000-00-00 00:00:00";
字段用双引号括起来,以逗号结尾,行以分号结尾。正如您所希望看到的,在特定字段上,字段内有硬回报(?)。这就是它们在CSV文件中的显示方式,而不是作为新行字符

解析CSV的我的ruby测试代码:

  csv_file_path1 = 'data/file.csv'

  CSV.foreach( csv_file_path2, { :row_sep => ";" } ) do |row|
    puts row[1]
  end
当我通过rake任务运行此任务时,我得到输出:

 1
 2   
 3
 4
 5
 6
 7
 8   
 rake aborted!
 Missing or stray quote in line 9
 ...
为什么它不能解析字段中具有硬返回的行?谢谢


编辑:更新以显示更多的CSV。

本例中的问题是双引号转义,而不是换行符。您有一个包含字符串
“assign\”
的字段,该字符串应转义为
“assign”“
。进行该更改会使以下各项正常运行:

require 'csv'
CSV.parse(DATA, :row_sep => ";") do |row|
  puts row
end

__END__
"1","1","When a ticket is marked as Resolved, revert the assigned_to to the one who started it",,"7","1","1.00","0.00","2",NULL,NULL,"1","2009-06-04 16:40:37","2009-06-04 16:40:37",NULL,"0000-00-00 00:00:00";"2","2","Email notifications when ticket is assigned to someone",,"1","1","1.00","0.00","1",NULL,NULL,"1","2009-06-04 16:41:21","2009-06-04 16:41:21",NULL,"0000-00-00 00:00:00";"3","1","When a ticket is marked as Resolved, revert the assigned_to to the one who started it - and notify",,"7","1","1.00","0.00","2",NULL,NULL,"1","2009-06-09 18:10:47","2009-06-09 18:10:47",NULL,"0000-00-00 00:00:00";"4","3","Change Password Capability","Fix the forgot password capability (and for bonus points, add capability for user to change once logged in.","7","1","0.00","0.00","1",NULL,NULL,"9","2009-06-09 18:13:45","2009-06-09 18:13:45",NULL,"0000-00-00 00:00:00";"5","4","Manager View","Don't need listed:
  Milestone
  Status

Do need listed:
  Assigned To
  Position (since we're not assigning case numbers)","7","1","0.00","0.00","1",NULL,NULL,NULL,"2009-06-09 18:16:32","2009-06-09 18:16:32",NULL,"0000-00-00 00:00:00";"6","5","TICKETS: Remove Position / Assign ID","Don't really need to assign a position, instead would be better to automatically assign a ticket number and be able to sort on that.

Also, when you don't assign a position to a ticket, it breaks the system (or at least it doesn't show up and causes an error in the Manager View)","7","1","0.00","0.00","1",NULL,NULL,"9","2009-06-09 18:19:10","2009-06-09 18:19:10",NULL,"0000-00-00 00:00:00";"7","6","Manager View","Don't need listed:
- Milestone
- Status

Do need listed:
- Case ID (preferred)
- Position (until case id implemented)","7","1","0.00","0.00","1",NULL,NULL,"9","2009-06-09 18:24:07","2009-06-09 18:24:07",NULL,"0000-00-00 00:00:00";"8","5","TICKETS: Remove Position / Assign ID","Don't really need to assign a position, instead would be better to automatically assign a ticket number and be able to sort on that.

Also, when you don't assign a position to a ticket, it breaks the system (or at least it doesn't show up and causes an error in the Manager View)","7","1","0.00","0.00","1",NULL,NULL,NULL,"2009-06-09 18:35:00","2009-06-09 18:35:00",NULL,"0000-00-00 00:00:00";"9","7","Ability to ""assign"" projects to users","Some way, even manual in the database, to indicate which projects a user may access","7","1","0.00","0.00","1",NULL,NULL,"9","2009-06-09 18:45:16","2009-06-09 18:45:16",NULL,"0000-00-00 00:00:00";

我也在用1.9.3。我试图从CSV中提取出问题区域,有数千行的10行。让我试着用一个更好的例子来更新这个问题。这个例子中的转义引号阻塞了
“将项目分配给用户的能力”
。我还没有解决方案,但是删除该字段中的转义引号会导致解析。显然,双引号必须作为CSV中的
而不是
\”
转义。进行更改会导致文件为我解析。我已适当更新了答案。