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yaphi

2008-May-25 05:42 UTC

Can I insert a string into my model after save?

So I am following the directions on the RoR wiki for uploading images
(the new 2.0.2 directions) :
http://wiki.rubyonrails.org/rails/pages/HowtoUploadFiles

The files upload beautifully, but I don''t know how to access the
images since it''s not inserting the file name into "cover"
when the
file posts. It leaves it null. How can I say:

def write_file
    if @file_data
      ...
      ...
      ...
      set cover to "#{id}.#{extension}"
    end
  end

Any help would be appreciated!
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Phlip

2008-May-25 06:05 UTC

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Re: Can I insert a string into my model after save?

yaphi wrote:
> So I am following the directions on the RoR wiki for uploading images
> (the new 2.0.2 directions) :
http://wiki.rubyonrails.org/rails/pages/HowtoUploadFiles
> 
> The files upload beautifully, but I don''t know how to access the
> images since it''s not inserting the file name into
"cover" when the
> file posts. It leaves it null. How can I say:
> 
> def write_file
>     if @file_data
>       ...
>       ...
>       ...
>       set cover to "#{id}.#{extension}"
>     end
>   end
You mean this?

   def write_file
     if @file_data
       File.makedirs("#{ALBUM_COVER_STORAGE_PATH}/#{id}")
      
File.open("#{ALBUM_COVER_STORAGE_PATH}/#{id}/#{id}.#{extension}",
"w") {
|file| file.write(@file_data.read) }
       # put calls to other logic here - resizing, conversion etc.
     end
   end

In that example, your current object _is_ the model. You could write self, for 
example, and get your model''s attributes.

To update, use update_attribute like this:

   self.update_attribute :cover, "#{id}.#{extension}"

However, I don''t know if that will infinitely recurse, because you are
inside an
after_save event. Does update trigger another after_save event?


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yaphi

2008-May-25 13:42 UTC

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Re: Can I insert a string into my model after save?

Thanks for the reply!

Yes update triggers an after_save because I can overwrite the image by
editing it. I will try this, thank you very much.

On May 25, 2:05 am, Phlip
<phlip2...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> yaphi wrote:
> > So I am following the directions on the RoR wiki for uploading images
> > (the new 2.0.2 directions)
:http://wiki.rubyonrails.org/rails/pages/HowtoUploadFiles
>
> > The files upload beautifully, but I don''t know how to access
the
> > images since it''s not inserting the file name into
"cover" when the
> > file posts. It leaves it null. How can I say:
>
> > def write_file
> >     if @file_data
> >       ...
> >       ...
> >       ...
> >       set cover to "#{id}.#{extension}"
> >     end
> >   end
>
> You mean this?
>
>    def write_file
>      if @file_data
>        File.makedirs("#{ALBUM_COVER_STORAGE_PATH}/#{id}")
>      
 File.open("#{ALBUM_COVER_STORAGE_PATH}/#{id}/#{id}.#{extension}",
"w") {
> |file| file.write(@file_data.read) }
>        # put calls to other logic here - resizing, conversion etc.
>      end
>    end
>
> In that example, your current object _is_ the model. You could write self,
for
> example, and get your model''s attributes.
>
> To update, use update_attribute like this:
>
>    self.update_attribute :cover, "#{id}.#{extension}"
>
> However, I don''t know if that will infinitely recurse, because you
are inside an
> after_save event. Does update trigger another after_save event?--~--~---------~--~----~------------~-------~--~----~
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yaphi

2008-May-28 12:04 UTC

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Re: Can I insert a string into my model after save?

I am receiving this error
undefined method `original_filename'' for "10.png":String

when trying this:

def write_file
    if @file_data
      File.makedirs("#{LOGO_PATH}/#{id}")
      File.open("#{LOGO_PATH}/#{id}/#{id}.#{extension}",
"w") { |file|
file.write(@file_data.read) }
      # put calls to other logic here - resizing, conversion etc.
      self.update_attribute :logo, "#{id}.#{extension}"
    end
  end

def extension
    @file_data.original_filename.split(".").last
  end

Any ideas why?

On May 25, 9:42 am, yaphi
<jconto...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> Thanks for the reply!
>
> Yes update triggers an after_save because I can overwrite the image by
> editing it. I will try this, thank you very much.
>
> On May 25, 2:05 am, Phlip
<phlip2...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> > yaphi wrote:
> > > So I am following the directions on the RoR wiki for uploading
images
> > > (the new 2.0.2 directions)
:http://wiki.rubyonrails.org/rails/pages/HowtoUploadFiles
>
> > > The files upload beautifully, but I don''t know how to
access the
> > > images since it''s not inserting the file name into
"cover" when the
> > > file posts. It leaves it null. How can I say:
>
> > > def write_file
> > >     if @file_data
> > >       ...
> > >       ...
> > >       ...
> > >       set cover to "#{id}.#{extension}"
> > >     end
> > >   end
>
> > You mean this?
>
> >    def write_file
> >      if @file_data
> >        File.makedirs("#{ALBUM_COVER_STORAGE_PATH}/#{id}")
> >      
 File.open("#{ALBUM_COVER_STORAGE_PATH}/#{id}/#{id}.#{extension}",
"w") {
> > |file| file.write(@file_data.read) }
> >        # put calls to other logic here - resizing, conversion etc.
> >      end
> >    end
>
> > In that example, your current object _is_ the model. You could write
self, for
> > example, and get your model''s attributes.
>
> > To update, use update_attribute like this:
>
> >    self.update_attribute :cover, "#{id}.#{extension}"
>
> > However, I don''t know if that will infinitely recurse,
because you are inside an
> > after_save event. Does update trigger another after_save event?--~--~---------~--~----~------------~-------~--~----~
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Alex Wayne

2008-May-28 17:28 UTC

head link

Re: Can I insert a string into my model after save?

yaphi wrote:> I am receiving this error
> undefined method `original_filename'' for "10.png":String
> 
> when trying this:
> 
> def write_file
>     if @file_data
>       File.makedirs("#{LOGO_PATH}/#{id}")
>       File.open("#{LOGO_PATH}/#{id}/#{id}.#{extension}",
"w") { |file|
> file.write(@file_data.read) }
>       # put calls to other logic here - resizing, conversion etc.
>       self.update_attribute :logo, "#{id}.#{extension}"
>     end
>   end
> 
> def extension
>     @file_data.original_filename.split(".").last
>   end
> 
> Any ideas why?
@file_data is the object that is complaining.  You think its an uploaded 
file object, but according to that error, its a "10.png":String.  This
is a common problem with your form.  If you leave off the :html => { 
:multipart => true } in your form tag, then your browser will only send 
the filename, not the actual data.

  <%= form_tag @photo, :html => { :multipart => true } do |f| %>

I think.
-- 
Posted via http://www.ruby-forum.com/.

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yaphi

2008-May-28 17:39 UTC

head link

Re: Can I insert a string into my model after save?

Hey Alex,

Uploading the file is not my problem. The problem is adding the:

self.update_attribute :logo, "#{id}.#{extension}"

to the write_file method. I want the file to upload (which it does),
then I want it to insert the filename into the logo column of the
table.

On May 28, 1:28 pm, Alex Wayne
<rails-mailing-l...-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org>
wrote:> yaphi wrote:
> > I am receiving this error
> > undefined method `original_filename'' for
"10.png":String
>
> > when trying this:
>
> > def write_file
> >     if @file_data
> >       File.makedirs("#{LOGO_PATH}/#{id}")
> >       File.open("#{LOGO_PATH}/#{id}/#{id}.#{extension}",
"w") { |file|
> > file.write(@file_data.read) }
> >       # put calls to other logic here - resizing, conversion etc.
> >       self.update_attribute :logo, "#{id}.#{extension}"
> >     end
> >   end
>
> > def extension
> >     @file_data.original_filename.split(".").last
> >   end
>
> > Any ideas why?
>
> @file_data is the object that is complaining.  You think its an uploaded
> file object, but according to that error, its a "10.png":String.
 This
> is a common problem with your form.  If you leave off the :html => {
> :multipart => true } in your form tag, then your browser will only send
> the filename, not the actual data.
>
>   <%= form_tag @photo, :html => { :multipart => true } do |f|
%>
>
> I think.
> --
> Posted viahttp://www.ruby-forum.com/.--~--~---------~--~----~------------~-------~--~----~
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Alex Wayne

2008-May-28 17:48 UTC

head link

Re: Can I insert a string into my model after save?

yaphi wrote:> Hey Alex,
> 
> Uploading the file is not my problem. The problem is adding the:
> 
> self.update_attribute :logo, "#{id}.#{extension}"
> 
> to the write_file method. I want the file to upload (which it does),
> then I want it to insert the filename into the logo column of the
> table.
> 
> On May 28, 1:28�pm, Alex Wayne
<rails-mailing-l...-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org>
Well, if the exception is:

  undefined method `original_filename'' for "10.png":String

And the only place your calling the method original_filename is here:

  def extension
    @file_data.original_filename.split(".").last
  end

Then @file_data is the string "10.png", not a file object.  Look 
wherever you are assigning that instance variable.  It won''t have an 
original_filename method unless its actually an uploaded file.
-- 
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Rails - May 2008 - Can I insert a string into my model after save?

Can I insert a string into my model after save?

Re: Can I insert a string into my model after save?

Re: Can I insert a string into my model after save?

Re: Can I insert a string into my model after save?

Re: Can I insert a string into my model after save?

Re: Can I insert a string into my model after save?

Re: Can I insert a string into my model after save?