Is this even possible? I''ve got a ruby expression stored in a database, it''s the code to run a plugin since I was having trouble passing variables stored in the database. When I try to call the code, it either outputs it as text, or doesn''t display it at all. It''s supposed to generate an image and display it. right now the code is stored in the database as: <%= barcode TEST1234, :encoding_format => Gbarcode::BARCODE_128 %> and in the View, I have this: <%= code.upc %> (where upc is the column name in the database) When I do this, nothing outputs in the view, but if I view the source, I can see the ruby expression. If I change the code stored in the database to this: barcode TEST1234, :encoding_format => Gbarcode::BARCODE_128 This just displays the code on the webpage, which I would expect it to. am I doing something wrong or is this not possible? --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
naevity wrote:> Is this even possible? I''ve got a ruby expression stored in a > database, it''s the code to run a plugin since I was having trouble > passing variables stored in the database. > > When I try to call the code, it either outputs it as text, or doesn''t > display it at all. It''s supposed to generate an image and display it. > > right now the code is stored in the database as: > > <%= barcode TEST1234, :encoding_format => Gbarcode::BARCODE_128 %> > > and in the View, I have this: > > <%= code.upc %> (where upc is the column name in the database)This will just render the contents of the column as text.> When I do this, nothing outputs in the view, but if I view the source, > I can see the ruby expression. > > If I change the code stored in the database to this: > barcode TEST1234, :encoding_format => Gbarcode::BARCODE_128 > > This just displays the code on the webpage, which I would expect it > to. > > am I doing something wrong or is this not possible?I think it is possible, but you will have to "eval" it somehow. I''ve not done this in ruby before but you should be able to google it quite easily. HTH Matt --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
On Fri, Jan 16, 2009 at 8:32 AM, naevity <jonathan.mulcahy-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:> > Is this even possible? I''ve got a ruby expression stored in a > database, it''s the code to run a plugin since I was having trouble > passing variables stored in the database. > > When I try to call the code, it either outputs it as text, or doesn''t > display it at all. It''s supposed to generate an image and display it. > > right now the code is stored in the database as: > > <%= barcode TEST1234, :encoding_format => Gbarcode::BARCODE_128 %> > > and in the View, I have this: > > <%= code.upc %> (where upc is the column name in the database) > > When I do this, nothing outputs in the view, but if I view the source, > I can see the ruby expression. > > If I change the code stored in the database to this: > barcode TEST1234, :encoding_format => Gbarcode::BARCODE_128 > > This just displays the code on the webpage, which I would expect it > to. > > am I doing something wrong or is this not possible?This smells funny... so I wanted to ask for more information. How is the ruby code going to be added into the database? Would users be inputting ruby code somehow? Robby -- Robby Russell Chief Evangelist, Partner PLANET ARGON, LLC design // development // hosting w/Ruby on Rails http://www.planetargon.com/ http://www.robbyonrails.com/ aim: planetargon +1 503 445 2457 +1 877 55 ARGON [toll free] +1 815 642 4068 [fax] --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
On Fri, Jan 16, 2009 at 10:32 AM, naevity <jonathan.mulcahy-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:> > Is this even possible? I''ve got a ruby expression stored in a > database, it''s the code to run a plugin since I was having trouble > passing variables stored in the database.In my opinion it would be better to solve the original problem you had with the plugin and passing variables than to use dynamically executed code as a workaround. From your snippets I''d guess the problem is you are trying to save/pass a string like "Gbarcode::BARCODE_128" into the plugin rather than the underlying value referred to by the constant Gbarcode::BARCODE_128. What did your original code look like?> When I try to call the code, it either outputs it as text, or doesn''t > display it at all. It''s supposed to generate an image and display it. > > right now the code is stored in the database as: > > <%= barcode TEST1234, :encoding_format => Gbarcode::BARCODE_128 %>If you want to execute this as Ruby code, you need to remove the <%%> bits (so you''re on the right track with that).> and in the View, I have this: > > <%= code.upc %> (where upc is the column name in the database) > > When I do this, nothing outputs in the view, but if I view the source, > I can see the ruby expression.<%=h code.upc %> will make it obvious why by preventing your view from accidentally rendering invalid HTML to the page.> If I change the code stored in the database to this: > barcode TEST1234, :encoding_format => Gbarcode::BARCODE_128 > > This just displays the code on the webpage, which I would expect it > to. > > am I doing something wrong or is this not possible?It is possible. $ irb irb(main):001:0> exp = "puts ''foo''" => "puts ''foo''" irb(main):002:0> eval exp foo So in a view: <%= eval code.upc %> *DANGER DANGER DANGER* you are running with scissors here. If an attacker can get arbitrary code into your database, using eval like this will execute that code in the context of your application. You may want to read up on Kernel#eval, Object#instance_eval, and the other forms of eval in Ruby, they''re a lot of fun. But in this case, I think they may not be the best choice if you can avoid them. -Michael -- Michael C. Libby www.mikelibby.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 -~----------~----~----~----~------~----~------~--~---
On Jan 16, 1:18 pm, "Michael Libby" <michael.c.li...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:> On Fri, Jan 16, 2009 at 10:32 AM, naevity <jonathan.mulc...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: > > > Is this even possible? I''ve got a ruby expression stored in a > > database, it''s the code to run a plugin since I was having trouble > > passing variables stored in the database. > > In my opinion it would be better to solve the original problem you had > with the plugin and passing variables than to use dynamically executed > code as a workaround. From your snippets I''d guess the problem is you > are trying to save/pass a string like "Gbarcode::BARCODE_128" into the > plugin rather than the underlying value referred to by the constant > Gbarcode::BARCODE_128.Thank''s for the response Michael and Robby, here''s my response before I saw what Michael wrote:> This smells funny... so I wanted to ask for more information. How is > the ruby code going to be added into the database? Would users be > inputting ruby code somehow?Well, it''s a workaround to another problem I''m running into. I''m trying to use the barcode-generator plugin (http://code.google.com/p/ barcode-generator/), which is based on the gbarcode gem. In my database I have two tables, one for the numbers, and one for the types of codes to use the plugin, you call <%= barcode ''UPCCODE'' %> in the view, and it generates the code to create and display the PNG. My problem is that I''m trying to add the :encoding_function option to the code, which would look something like this: <%= barcode ''UPCCODE'', :encoding_function => Gbarcode::BARCODE_ISBN %> I need to be able to dynamically input the encoding function like this: <%= barcode code.number, :encoding_function => code.type.upctype %> but this pops up errors. I''ve tried every combination of trying to pass that value, and it always fails. So, as a last resort, I wrote code to just write the whole line to the database for each UPCnumber, i.e.: <%= barcode ''TEST1234'', :encoding_function => Gbarcode::BARCODE_39 %> <%= barcode ''234567890987'', :encoding_function => Gbarcode::BARCODE_ISBN %> <%= barcode ''U567890298322E'', :encoding_function => Gbarcode::BARCODE_128 %> But, as I said above, when I try to pull this code, and run it to generate and display the barcode, it fails. For Example: code: <%= barcode card.cardnumber, :encoding_format => card.rewards.upctype %> code.type.upctype: Gbarcode::BARCODE_ISBN result: in method ''Barcode_Encode'', argument 2 of type ''int'' code: <%= barcode card.cardnumber, card.rewards.upctype %> code.type.upctype: :encoding_format => Gbarcode::BARCODE_ISBN result: index 94105 out of string --~--~---------~--~----~------------~-------~--~----~ 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@googlegroups.com For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
> > So in a view: <%= eval code.upc %> > > *DANGER DANGER DANGER* you are running with scissors here. If an > attacker can get arbitrary code into your database, using eval like > this will execute that code in the context of your application. > > You may want to read up on Kernel#eval, Object#instance_eval, and the > other forms of eval in Ruby, they''re a lot of fun. But in this case, I > think they may not be the best choice if you can avoid them. > > -Michael >I''ve wondered about doing something like this myself, but in a different context... Suppose I develop a generic RoR application that I would like to be able extend or customize on the fly. As an example, suppose I wanted records in my database with a certain value for the "from" field to always be stored in upper case, but I didn''t (and can''t) know at the time I develop the application to which values that rule (or some other totally arbitrary rule) would apply. I have thought about creating a table for Ruby code, and evaluating that code a key points in the execution of my application. I would restrict access to that table to admin users only, so as to reduce the risk of allowing malicious code into my database. So far, I haven''t gotten anywhere other than wondering whether I really want to go down this path or not, and wondering how I might do so if I did want to start down that slippery slope. I''m curious -- have others had similar wonderments and address them similarly or differently? --wpd --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
On Fri, Jan 16, 2009 at 12:32 PM, naevity <jonathan.mulcahy-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:> <%= barcode ''UPCCODE'', :encoding_function => Gbarcode::BARCODE_ISBN %>Hard-coding it like this works for you, right?> I need to be able to dynamically input the encoding function like > this: > > <%= barcode code.number, :encoding_function => code.type.upctype %>What are some sample values of code.type.upctype from your database? -Michael -- Michael C. Libby www.mikelibby.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 -~----------~----~----~----~------~----~------~--~---
naevity wrote:> > In my database I have two tables, one for the numbers, and one for the > types of codes > > to use the plugin, you call <%= barcode ''UPCCODE'' %> in the view, and > it generates the code to create and display the PNG. My problem is > that I''m trying to add the :encoding_function option to the code, > which would look something like this: > > <%= barcode ''UPCCODE'', :encoding_function => Gbarcode::BARCODE_ISBN %> >I''ll second (or third, or whatever) the opinions that retrieving raw code from a database table and executing it blindly is risky enough that it should make you lose sleep at night. In this case, if you decide that loading in the code from a remote source is the easiest way to solve your problem, why not just put the code snippets somewhere safer like a yaml file instead? It''s a read-only format, no danger for hackers to inject their own code, and it would be just as easy (if not easier) to set up for a managably finite number of code snippets. Not to mention the fact that the code snippets could be loaded once and cached, saving you all that extra database activity. Just a thought. - Aaron --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
On Jan 16, 1:52 pm, "Michael Libby" <michael.c.li...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:> On Fri, Jan 16, 2009 at 12:32 PM, naevity <jonathan.mulc...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: > > <%= barcode ''UPCCODE'', :encoding_function => Gbarcode::BARCODE_ISBN %> > > Hard-coding it like this works for you, right? > > > I need to be able to dynamically input the encoding function like > > this: > > > <%= barcode code.number, :encoding_function => code.type.upctype %> > > What are some sample values of code.type.upctype from your database? > > -Michaelyes, hardcoding it works. Let''s say I want to use an ISBN barcode of "068816112X" This works: <%= barcode ''068816112X'', :encoding_function => Gbarcode::BARCODE_ISBN %> Now, let''s say in my types table, I have this: id: 1 type: book upctype: GBarcode::BARCODE_ISBN id: 2 type: dvd upctype: GBarcode::BARCODE_128 and in my ''items'' table (instead of code, works better for the example) I have this: id: 1 type_id: 1 name: replay upcnumber: 068816112X id: 2 type_id: 2 name: batman upcnumber: 123456789 I can do this without a problem: <%= barcode item.upcnumber, :encoding_format => Gbarcode::BARCODE_ISBN %> But that would obviously make the next entry of Batman show up wrong, since it needs to be a BARCODE type of 128. This is where stuff start''s going wrong. I thought I should be able to enter the below without a problem <%= barcode item.upcnumber, :encoding_format => item.type.upctype %> but that''s when I get the "in method ''Barcode_Encode'', argument 2 of type ''int'' " error. If you want to take a look at the plugin''s code where the Barcode_Encode method lies, it''s here: http://code.google.com/p/barcode-generator/source/browse/trunk/barcode_generator/lib/barcode_generator.rb I really appreciate the help, I''ve wasted an entire day trying to wrap my head around it. It seems like it should work to me, but I obviously don''t know enough as to why it''s not working. --~--~---------~--~----~------------~-------~--~----~ 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@googlegroups.com For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
On Fri, Jan 16, 2009 at 1:21 PM, naevity <jonathan.mulcahy-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:> yes, hardcoding it works. Let''s say I want to use an ISBN barcode of > "068816112X" > > This works: > > <%= barcode ''068816112X'', :encoding_function => Gbarcode::BARCODE_ISBN > %>Good. Just checking that the easy case works. :)> Now, let''s say in my types table, I have this: > > id: 1 > type: book > upctype: GBarcode::BARCODE_ISBNI think the problem is your model then. GBarcode::BARCODE_ISBN is not a string. It''s a constant that stands for the Fixnum 3. irb(main):001:0> require ''rubygems'' => true irb(main):002:0> require ''gbarcode'' => true irb(main):003:0> Gbarcode::BARCODE_ISBN => 3 irb(main):006:0> Gbarcode::BARCODE_ISBN.class => Fixnum> <%= barcode item.upcnumber, :encoding_format => item.type.upctype %> > > but that''s when I get the "in method ''Barcode_Encode'', argument 2 of > type ''int'' " error.It''s a somewhat opaque error message, but it''s telling you that the second argument is the wrong type... and that it wants an int. Your view could just as easily contain: <%= barcode "some_string", :encoding_format => 3 %> and it should work the same as <%= barcode "some_string", :encoding_format => Gbarcode::BARCODE_ISBN %> The value you need to store in your database is the integer/Fixnum. -Michael -- Michael C. Libby www.mikelibby.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 -~----------~----~----~----~------~----~------~--~---
Gustavo Akio Tominaga Sacomoto
2009-Jan-16 19:45 UTC
Re: running a ruby expression stored in a database
On Fri, Jan 16, 2009 at 5:21 PM, naevity <jonathan.mulcahy-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:> > > > On Jan 16, 1:52 pm, "Michael Libby" <michael.c.li...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: >> On Fri, Jan 16, 2009 at 12:32 PM, naevity <jonathan.mulc...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: >> > <%= barcode ''UPCCODE'', :encoding_function => Gbarcode::BARCODE_ISBN %> >> >> Hard-coding it like this works for you, right? >> >> > I need to be able to dynamically input the encoding function like >> > this: >> >> > <%= barcode code.number, :encoding_function => code.type.upctype %> >> >> What are some sample values of code.type.upctype from your database? >> >> -Michael > > > > > yes, hardcoding it works. Let''s say I want to use an ISBN barcode of > "068816112X" > > This works: > > <%= barcode ''068816112X'', :encoding_function => Gbarcode::BARCODE_ISBN > %> > > Now, let''s say in my types table, I have this: > > id: 1 > type: book > upctype: GBarcode::BARCODE_ISBN > > id: 2 > type: dvd > upctype: GBarcode::BARCODE_128 > > > and in my ''items'' table (instead of code, works better for the > example) I have this: > > id: 1 > type_id: 1 > name: replay > upcnumber: 068816112X > > id: 2 > type_id: 2 > name: batman > upcnumber: 123456789 > > I can do this without a problem: > > <%= barcode item.upcnumber, :encoding_format => Gbarcode::BARCODE_ISBN > %> > > But that would obviously make the next entry of Batman show up wrong, > since it needs to be a BARCODE type of 128. > > This is where stuff start''s going wrong. I thought I should be able to > enter the below without a problem > > <%= barcode item.upcnumber, :encoding_format => item.type.upctype %> > > but that''s when I get the "in method ''Barcode_Encode'', argument 2 of > type ''int'' " error. > > > If you want to take a look at the plugin''s code where the > Barcode_Encode method lies, it''s here: > > http://code.google.com/p/barcode-generator/source/browse/trunk/barcode_generator/lib/barcode_generator.rb > > I really appreciate the help, I''ve wasted an entire day trying to wrap > my head around it. It seems like it should work to me, but I obviously > don''t know enough as to why it''s not working.It won''t work the way you are doing, because "Gbarcode::BARCODE_ISBN" is ruby code (It''s a constant from Gbarcode class) and needs to be evaluated and when you do "item.type.upctype" the result is the STRING "Gbarcode::BARCODE_ISBN" which is not interpreted, therefore not evaluated as the constant. This code: <%= barcode item.upcnumber, :encoding_format => eval item.type.upctype %> works, but it''s dangerous and you should avoid it.> > >-- cheers, Gustavo Sacomoto Vice-gerente Geral Qype Brasil +55 (11) 76747726 www.qype.com.br --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
On Jan 16, 2009, at 2:44 PM, Michael Libby wrote:> On Fri, Jan 16, 2009 at 1:21 PM, naevity > <jonathan.mulcahy-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: >> yes, hardcoding it works. Let''s say I want to use an ISBN barcode of >> "068816112X" >> >> This works: >> >> <%= barcode ''068816112X'', :encoding_function => >> Gbarcode::BARCODE_ISBN >> %> > > Good. Just checking that the easy case works. :) > >> Now, let''s say in my types table, I have this: >> >> id: 1 >> type: book >> upctype: GBarcode::BARCODE_ISBN > > I think the problem is your model then. > > GBarcode::BARCODE_ISBN is not a string. It''s a constant that stands > for the Fixnum 3. > > irb(main):001:0> require ''rubygems'' > => true > irb(main):002:0> require ''gbarcode'' > => true > irb(main):003:0> Gbarcode::BARCODE_ISBN > => 3 > irb(main):006:0> Gbarcode::BARCODE_ISBN.class > => Fixnum > >> <%= barcode item.upcnumber, :encoding_format => item.type.upctype %> >> >> but that''s when I get the "in method ''Barcode_Encode'', argument 2 of >> type ''int'' " error. > > It''s a somewhat opaque error message, but it''s telling you that the > second argument is the wrong type... and that it wants an int. > > Your view could just as easily contain: > > <%= barcode "some_string", :encoding_format => 3 %> > > and it should work the same as > > <%= barcode "some_string", :encoding_format => > Gbarcode::BARCODE_ISBN %> > > The value you need to store in your database is the integer/Fixnum. > > -Michael > > -- > Michael C. Libby > www.mikelibby.comYou can probably leverage ActiveSupport#constantize class Item def enc_type self.type.upctype.constantize rescue NameError Gbarcode::DEFAULT end end assuming that you *want* to store Gbarcode::BARCODE_ISBN in the database rather than its value as a Fixnum. HOWEVER, I''ll warn you that the name ''type'' is reserved by ActiveRecord for single-table inheritance and you might be better-off using a word like ''kind'' or ''format'' ;-) -Rob Rob Biedenharn http://agileconsultingllc.com Rob-xa9cJyRlE0mWcWVYNo9pwxS2lgjeYSpx@public.gmane.org --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
> Your view could just as easily contain: > > <%= barcode "some_string", :encoding_format => 3 %> > > and it should work the same as > > <%= barcode "some_string", :encoding_format => Gbarcode::BARCODE_ISBN %> > > The value you need to store in your database is the integer/Fixnum. > > -MichaelHi Michael, That worked! Thank you very much, I doubt I ever would have figured that out in the near future. I''m gonna have to alter my structure to include those values. Everyone, thank you very much, I really appreciate it. I do not want to use the eval option, and I''m glad I now understand why it wasn''t working. It was driving me crazy. Thanks again, Jonathan --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---