Download error: Cannot read file /images/header.gif

Rails
1

hi guys,
I have to create a download link.As a newbie in ruby i googled for it
and
found the way for my problem.

def attachment
send_file(’/images/header.gif’,
:filename => ‘My Filename!’,
:type => ‘image/gif’,
:disposition => ‘attachment’,
:streaming => ‘true’,
:buffer_size => ‘4096’)
end

but it show file download error: Cannot read file /images/header.gif
My file location /images/header.gif
what is the wrong?
please mention a better way if any.
please help me.

Amin

2

Ruhul A. wrote:

hi guys,
I have to create a download link.As a newbie in ruby i googled for it
and
found the way for my problem.

def attachment
send_file(’/images/header.gif’,
:filename => ‘My Filename!’,
:type => ‘image/gif’,
:disposition => ‘attachment’,
:streaming => ‘true’,
:buffer_size => ‘4096’)
end

but it show file download error: Cannot read file /images/header.gif
My file location /images/header.gif
what is the wrong?
please mention a better way if any.
please help me.

Amin

send_file takes the full path to a file that is local on the webserver,
not a url. It reads the data in that file and sends it back out to the
browser. So what you most likely need is:

send_file("#{RAILS_ROOT}/public/images/header.gif", …)

3

Alex W. wrote:

send_file takes the full path to a file that is local on the webserver,
not a url. It reads the data in that file and sends it back out to the
browser. So what you most likely need is:

send_file("#{RAILS_ROOT}/public/images/header.gif", …)

Ｔｈｘ　ｆｏｒ　ｕｒ　ｈｅｌｐ.

4

Hi,
do you know anyway to read a file with url?

Thank you

Luigi

5

Luigi wrote:

Hi,
do you know anyway to read a file with url?

Thank you

Luigi

Dear Luigi,

Use a library. Net::HTTP (in ‘net/http’) for http://… , Net::FTP (in
‘net/ftp’) for ftp://…, etc

You have examples in the documentation of these libraries.

If not solved… please write agin.

Tuhin