Mariusz Pekala
7/20/2007 8:29:00 PM
On 2007-07-21 04:10:22 +0900 (Sat, Jul), Matthew Lagace wrote:
> Hello,
>
> I am reading a csv file (File1) and putting its content into a string,
> then I append that string in another csv file (file2) that has some data
> in it already. Now I do not want to overwrite the data in file2 so i've
> opened file2 in append mode, and the string from file1 is appended to
> file2, but, I lose some characters in the first line of my string, it
> looks almost like the first line of my string from file1 is trying to
> overwrite the last line in file2 but it doesn't. My string just loses
> the same amount of characters of the number of characters from my last
> line that was already in file2. Long story short, It won't append
> correctly.
>
> Here is the code:
>
> File.new(rightfile,"w")
>
> fileNew = File.open(rightfile,"w")
> fileNew.puts
> '"email","source","ip","data_timestamp_proper","firstname","lastname"'
>
> str = IO.read(outfile)
>
> fileAppend = File.open(rightfile,"a")
> fileAppend.puts str
>
Have you debugged what is the contents of str ?
Maybe the problem is not in appending but reading?
If this is the exact code you run, then you are opening the file three
times, without closing it or flushing its buffers:
First: File.new(rightfile,'w')
Second: File.open(rightfile,'w')
Third: File.open(rightfile,'a')
I suggest something like:
File.open( rightfile, 'w') do |f|
f.puts '"email","source"....'
end
str = IO.read(outfile)
File.open( rightfile, 'a') do |f|
f.puts str
end
but it may be shortened to just:
File.open( rightfile, 'w' ) do |right|
right.puts '"email","..."'
str = IO.read( outfile )
right.puts str
end
--
No virus found in this outgoing message.
Checked by 'grep -i virus $MESSAGE'
Trust me.