The error's caused by the routine ensure_canonical_url If I comment it out it works
blog_post.rb: def to_param "#{id}-#{title.parameterize}" end blog_posts_controller.rb: def set_blog_post @blog_post = BlogPost.find(params[:id]) end def ensure_canonical_url redirect_to @blog_post if @blog_post.to_param != params[:id] end On Wednesday, January 15, 2020 at 8:41:00 PM UTC-5, Ariel Juodziukynas wrote: > > I insist, show your code, show the complete error stacktrace, show the > log. I can imagine what you are trying to do and from the (little) code you > show it should work so something else is messing things up but you are > showing barely any relevant code. > > El mié., 15 ene. 2020 a las 22:37, fugee ohu (<fuge...@gmail.com > <javascript:>>) escribió: > >> >> >> On Wednesday, January 15, 2020 at 8:26:45 PM UTC-5, Ariel Juodziukynas >> wrote: >>> >>> find method doesn't care about the to_param method, it just takes the >>> parameter you use, I guess it calls "to_i" and uses that integer to query >>> the id column >>> >>> Why don't you show your code, the stacktrace, the logs or anything? I >>> suggest you read something like stackoverflow's guidelines on how to ask, >>> you posts are usually really hard to understand and a lot of information is >>> missing >>> >>> El mié., 15 ene. 2020 a las 18:01, fugee ohu (<fuge...@gmail.com>) >>> escribió: >>> >>>> >>>> >>>> On Wednesday, January 15, 2020 at 3:07:00 PM UTC-5, Ariel Juodziukynas >>>> wrote: >>>>> >>>>> From the docs: >>>>> https://apidock.com/rails/v6.0.0/ActiveRecord/FinderMethods/find >>>>> >>>>> Person <https://apidock.com/rails/Person>.find >>>>> <https://apidock.com/rails/ActiveRecord/FinderMethods/find>("31-sarah") # >>>>> returns the object for ID = 31 >>>>> >>>>> In your case, if you are using find, it should search for record with >>>>> id = 18 >>>>> >>>>> El mié., 15 ene. 2020 a las 16:18, fugee ohu (<fuge...@gmail.com>) >>>>> escribió: >>>>> >>>>>> Doesn't work for me in rails 6 >>>>>> >>>>>> Parameters: {"id"=>"18-test-title"} >>>>>> ActionController::ActionControllerError (Cannot redirect to nil!): >>>>>> >>>>>> Ne >>>>>> >>>>>> -- >>>>>> You received this message because you are subscribed to the Google >>>>>> Groups "Ruby on Rails: Talk" group. >>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>> send an email to rubyonra...@googlegroups.com. >>>>>> To view this discussion on the web visit >>>>>> https://groups.google.com/d/msgid/rubyonrails-talk/64e66550-c393-43cd-8156-29c43139899a%40googlegroups.com >>>>>> >>>>>> <https://groups.google.com/d/msgid/rubyonrails-talk/64e66550-c393-43cd-8156-29c43139899a%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>>> . >>>>>> >>>>> >>>> I've over-riding ActiveRecord to_param in my model >>>> >>>> def to_param >>>> "#{id}-#{title.parameterize}" >>>> end >>>> >>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "Ruby on Rails: Talk" group. >>>> To unsubscribe from this group and stop receiving emails from it, send >>>> an email to rubyonra...@googlegroups.com. >>>> To view this discussion on the web visit >>>> https://groups.google.com/d/msgid/rubyonrails-talk/1ba590e7-4c1c-4fcd-9ed8-0f2ed65b0350%40googlegroups.com >>>> >>>> <https://groups.google.com/d/msgid/rubyonrails-talk/1ba590e7-4c1c-4fcd-9ed8-0f2ed65b0350%40googlegroups.com?utm_medium=email&utm_source=footer> >>>> . >>>> >>> >> I was trying to implement this guide: >> >> https://medium.com/badass-engineer/seo-friendly-urls-with-rails-49cfcd2fb190 >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Ruby on Rails: Talk" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to rubyonra...@googlegroups.com <javascript:>. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/rubyonrails-talk/1aa0ed3a-a906-4965-8ff1-c8fde1e909da%40googlegroups.com >> >> <https://groups.google.com/d/msgid/rubyonrails-talk/1aa0ed3a-a906-4965-8ff1-c8fde1e909da%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> > -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-talk+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/rubyonrails-talk/36bef75c-1c04-4bdd-a43b-52194db1d431%40googlegroups.com.