Rails - Jun 2008 - attachment_fu resizing images already uploaded

hi, got a query.

i''m using the attachment_fu plugin to handle photo storage and
that''s
working fine, however now i''ve come to realise the initial size i set
the thumbnails and full photos isn''t right, so i''ve changed
the sizing
for future uploads but need to do this for past uploads.

any ideas how i''d do this, maybe in a migration or rake task?

i''m thinking i could build a task to reimport each full photo, after
which it deletes the original record, which is do-able.

just wondering if there''s any magic method i''m missing to do
it better?

appreciate any replies on this,
-- 
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
-~----------~----~----~----~------~----~------~--~---

since you most likely have to do it only once,
you can do it in script/console.

Either write a small script for that task and start it in the console.
Or add a method to the model that contains the data and start that 
within te console.
-- 
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
-~----------~----~----~----~------~----~------~--~---

I eventually managed to get the time to put this one together, rake 
script below...


#(run => ''rake images:[task]'' or ''rake
RAILS_ENV=production
images:[task]'')

namespace :images do
  desc "list images"
  task(:list => :environment) do
    # list all images
    @photos = Image.find(:all, :conditions => [''parent_id is
null''])
    @photos.each do |@photo|
      iFile = @photo.filename #@photo.public_filename
      iPath = RAILS_ROOT+"/public#{@photo.public_filename}"
      iID = @photo.id.to_s
      iUser_ID = @photo.user_id.to_s
      iWidth = @photo.width.to_s
      iHeight = @photo.height.to_s
      puts ''id:''+iID+'' 
userid:''+iUser_ID+''  width:''+iWidth+''
height:''+iHeight+''   file:''+iFile+''  
path:''+iPath
    end
  end

  desc "add test image"
  task(:add_test => :environment) do
    # add image
    iFile = ''test2.jpg''
    iPath = ''/var/www/apps/dates/test.jpg''
    @img = Image.new(:filename => iFile, :content_type =>
''image/jpeg'',
:temp_path => iPath, :user_id => 1).save!
  end

  desc "update test image"
  task(:update_test => :environment) do
    # update image
    iFile = ''test2.jpg''
    iPath = ''/var/www/apps/dates/test2.jpg''
    @img = Image.find(''101'')
    if @img.update_attributes(:filename => iFile, :content_type => 
''image/jpeg'', :temp_path => iPath, :user_id => 1)
      puts iFile + '' updated!''
    end
  end

  desc "reimage all existing images - test"
  task(:reimage_test => :environment) do
    # re-import all existing images - test
    @photos = Image.find(:all, :conditions => [''parent_id is null
and
user_id = 2''])
    @photos.each do |@photo|
      iFile = @photo.filename
      iPath = RAILS_ROOT+"/public#{@photo.public_filename}"
      iType = @photo.content_type
      iUser_ID = @photo.user_id
      if @photo.update_attributes(:filename => iFile, :content_type => 
iType, :temp_path => iPath, :user_id => iUser_ID)
        puts iFile + '' updated!''
      end
    end
  end

  desc "reimage all existing images"
  task(:reimage => :environment) do
    # re-import all existing images
    @photos = Image.find(:all, :conditions => [''parent_id is
null''])
    @photos.each do |@photo|
      iFile = @photo.filename
      iPath = RAILS_ROOT+"/public#{@photo.public_filename}"
      iType = @photo.content_type
      iUser_ID = @photo.user_id
      if @photo.update_attributes(:filename => iFile, :content_type => 
iType, :temp_path => iPath, :user_id => iUser_ID)
        puts iFile + '' updated!''
      end
    end
  end

end


it''s a bit quick & dirty but it does the job.

all the best,


John.
-- 
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
-~----------~----~----~----~------~----~------~--~---