Dear all,
I have uploaded gif images and stored in folder called banner list. I
have successfully read and written the uploaded gif files even animated
gif files. But when i read the same gif file from the the bannerlist
folder and write in banner folder, i was not able to do so. Please
suggest on how to read gif images from a folder and write in another
folder.
I have used code :
if File.exists? RAILS_ROOT +
"/public/images/bannerlist/#{params[:id]}"
a = File.read("public/images/bannerlist/martin2.gif")
File.open("public/images/banner/" + "banner.gif" ,
"wb") do |f|
f.write(a)
end
end
For Uploading of images i have used following code and it works fine, so
please suggest on the above issue of reading and writing of animated gif
files from one folder to another.
image = params[:image][:blob]
image1=params[:image][:blob].original_filename
File.open(RAILS_ROOT + "/public/images/bannerlist/" + image1,
"wb") do
|f|
f.write(params[:image][:blob].read)
end
please suggest a way for reading and writing of animated gif files from
one folder to another.
Thanks in advance
Regards,
Jose
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dare ruby wrote:> I have used code : > > if File.exists? RAILS_ROOT + "/public/images/bannerlist/#{params[:id]}"Firstly, start using Pathname. I always put this in environment.rb: require ''pathname'' RailsRoot = Pathname.new(RAILS_ROOT).expand_path That allows this: if (RailsRoot + ''public/images/bannerlist'' + params[:id]).exist? > a = File.read("public/images/bannerlist/martin2.gif") That .read() call neglects the RAILS_ROOT. Never guess what the current folder is; always use complete paths. Next, you are essentially reading a gif into memory and barfing it out into a file. This is slow, fragile, and high-risk. Consider using FileUtils to symlink the banner.gif to the rotating banner in the banner list. -- Phlip --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
Why are you reading one file and then writing it to another? Why don''t you just copy it? http://is.gd/gNve And if file operations doesn''t work, open up console and try it there. You will see if it was successful, because irb will show true/false. If it''s false, then check if your directories have rights to be writed. On 22. Jan, 05:46 h., dare ruby <rails-mailing-l...-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org> wrote:> Dear all, > > I have uploaded gif images and stored in folder called banner list. I > have successfully read and written the uploaded gif files even animated > gif files. But when i read the same gif file from the the bannerlist > folder and write in banner folder, i was not able to do so. Please > suggest on how to read gif images from a folder and write in another > folder. > > I have used code : > > if File.exists? RAILS_ROOT + "/public/images/bannerlist/#{params[:id]}" > > a = File.read("public/images/bannerlist/martin2.gif") > > File.open("public/images/banner/" + "banner.gif" , "wb") do |f| > > f.write(a) > > end > end > > For Uploading of images i have used following code and it works fine, so > please suggest on the above issue of reading and writing of animated gif > files from one folder to another. > > image = params[:image][:blob] > > image1=params[:image][:blob].original_filename > > File.open(RAILS_ROOT + "/public/images/bannerlist/" + image1, "wb") do > |f| > > f.write(params[:image][:blob].read) > > end > > please suggest a way for reading and writing of animated gif files from > one folder to another. > > Thanks in advance > > Regards, > Jose > -- > Posted viahttp://www.ruby-forum.com/.--~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
> file. This is slow, fragile, and high-risk. Consider using FileUtils to > symlink > the banner.gif to the rotating banner in the banner list.Dear Philip thanks for your immediate response, it works fine with FileUtils copy method. Thanks for your suggestions. Regards, Jose Martin -- Posted via http://www.ruby-forum.com/. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---