FileUtils.mv

[fugee ohu]

  def move_file
    from_path=params[:file_name]
    to_path=params[:file_name]
    to_path["queue/"]=""
    FileUtils.mv "#{from_path}", "#{to_path}"
    redirect_to request.referrer
  end

request parameters:

{"file_name"=>"recordings/WCR-20160409.mp3",
 "file_type"=>"to_be_moved",
 "page"=>"list_directory"}

i get this error:

Errno::ENOENT in RecordingsController#move_file

No such file or directory @ sys_fail2 - (recordings/WCR-20160409.mp3, recordings/WCR-20160409.mp3)

around ... FileUtils.mv "#{from_path}", "#{to_path}"

I'm trying to move the file from the recordings/queue/ direcotry up a level to recordings/ I don't really understand the error it looks like it's taking both arguments, from_path and to_path and treating them as a combined first argument Anyone?

[Colin Law]

On 18 April 2016 at 15:50, fugee ohu <fuge...@gmail.com> wrote:
> def move_file
> from_path=params[:file_name]
> to_path=params[:file_name]
> to_path["queue/"]=""

Have you put a debug print in to check what from_path and to_path are set to?

Colin

> FileUtils.mv "#{from_path}", "#{to_path}"
> redirect_to request.referrer
> end
>
> request parameters:
>
> {"file_name"=>"recordings/WCR-20160409.mp3",
> "file_type"=>"to_be_moved",
> "page"=>"list_directory"}
>
> i get this error:
>
> Errno::ENOENT in RecordingsController#move_file
>
> No such file or directory @ sys_fail2 - (recordings/WCR-20160409.mp3,
> recordings/WCR-20160409.mp3)
>
> around ... FileUtils.mv "#{from_path}", "#{to_path}"

>
>
> I'm trying to move the file from the recordings/queue/ direcotry up a level
> to recordings/ I don't really understand the error it looks like it's taking
> both arguments, from_path and to_path and treating them as a combined first
> argument Anyone?
>

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[botp]

On Mon, Apr 18, 2016 at 10:50 PM, fugee ohu <fuge...@gmail.com> wrote:
> def move_file
> from_path=params[:file_name]
> to_path=params[:file_name]
> to_path["queue/"]=""
> FileUtils.mv "#{from_path}", "#{to_path}"
> redirect_to request.referrer
> end
>

params[:file_name], from_path, and to_path all point to the same
object. to verify, check their #object_id.

so if you modify to_path, you also modify the other two. try #dup to
copy an object.

kind regards
--botp

[fugee ohu]

the = assignment operator assigns the values from the right side operand to the left side, it doesn't change the value of other variables, i dunno what  you mean and i dunno what #dup is ~ fugee

[fugee ohu]

No because this action doesn't print, it moves the file and redirects

[fugee ohu]

On Monday, April 18, 2016 at 11:32:07 AM UTC-4, Colin Law wrote:

how can changing to_path affect the value of from_path ?

[Colin Law]

On 18 April 2016 at 19:07, fugee ohu <fuge...@gmail.com> wrote:
> ...

> how can changing to_path affect the value of from_path ?

Because, as botp pointed out, they are referencing (pointing to) the
same object in memory.
Use
to_path = some function of params[....]
to avoid the problem. In a previous post you said you did not know
what dup does. Perhaps you should find out.

Colin

[fugee ohu]

Like what inconsequential function of params[:file_name] could i use? i tried params[:file_name].to_s but it had no affect

[fugee ohu]

On Monday, April 18, 2016 at 3:53:44 PM UTC-4, Colin Law wrote:

got it working using dup ~ thanks, fugee

[fugee ohu]

On Monday, April 18, 2016 at 12:13:37 PM UTC-4, bot Peña wrote: