Ok, that's clear now. Do you use pastie (http://pastie.org/) or gist (https://gist.github.com/)? If yes, can you paste following on any of them and reply with link?
#models User Picture #controllers UsersController #views users/index On Tue, Jun 21, 2011 at 9:37 PM, joanne ta <[email protected]> wrote: > > Oh, so you are trying to get the image url from the user's index action? >> If yes, that's not correct. >> > yes, i am trying to get image url from db > >> >> You should instead have a different method name and should request for >> image url of only one specific user. >> > I have def show to get specific user > > def show > @user= User.find_by_id(params[:id]) > end > >> >> It would help in cleaning up the code and solve this issue faster, if you >> can tell me what exactly you are trying to do. >> > > I want take a value image from Picture table with specific user and display > it on the screen. > can u help me... thanks :X so much much.. > > > Joanne > >> >> > >> On Tue, Jun 21, 2011 at 9:22 PM, joanne ta <[email protected]> wrote: >> >>> >>> Not sure why it errors out now. >>>> Do you get the same error is it a different error this time? >>>> >>> >>> this is my index >>> >>> def index >>> @user= Users.all >>> @pictograph = [] >>> >>> @user.each do |p| >>> @pic= Picture.where(:phrase_id => :route , :culture_id => >>> p.culturet_id).first >>> @pic.compact! >>> end >>> end >>> >>> and my view is >>> >>> <td><%= image_tag url_for(:controller => "/users", :action => "index"), >>> :width => "25px", :height => "25px"%></td> >>> >>> my error: >>> Processing by UsersController#index as >>> User Load (1.0ms) SELECT "users".* FROM "users" WHERE "users"."id" = 1 >>> LIMIT 1 >>> PictureLoad (7.0ms) SELECT "pictures".* FROM "pictures" WHERE >>> "pictures"."phrase_id" = 'route' AND "pictures"."culturet_id" = 1 LIMIT 1 >>> Completed in 237ms >>> >>> >>> NoMethodError (You have a nil object when you didn't expect it! >>> You might have expected an instance of Array. >>> The error occurred while evaluating nil.compact!): >>> app/controllers/users_controller.rb:27:in `block in index' >>> app/controllers/users_controller.rb:25:in `each' >>> app/controllers/users_controller.rb:25:in `index' >>> >>> >>>> >>>> On Tue, Jun 21, 2011 at 9:05 PM, joanne ta <[email protected]>wrote: >>>> >>>>> >>>>> 1. Remove the send_data line, it isn't required. >>>>> >>>>> Yes, it did remove it. >>>>> >>>>>> 2. Can you check if there are any records in your pictures table? >>>>>> Right now it looks like it is returning nil. >>>>>> >>>>> Yes, It has 1 record in Picture table and 3 records in User Table >>>>> >>>>> >>>>>> >>>>>> On Tue, Jun 21, 2011 at 8:35 PM, joanne ta <[email protected]>wrote: >>>>>> >>>>>>> >>>>>>> >>>>>>> Can you paste what you have in your index method? >>>>>>>> You should not be getting this error because we have already defined >>>>>>>> @pic as an empty array. >>>>>>>> >>>>>>>> >>>>>>> >>>>>>> >>>>>>>> def index >>>>>>>> >>>>>>>> @users= User.all >>>>>>>> @pic= [] >>>>>>>> >>>>>>>> @users.each do |p| >>>>>>>> @pic<< Picture.where(:phrase_id => :route , :culture_id => >>>>>>>> p.culture_id).first >>>>>>>> >>>>>>>> end >>>>>>>> >>>>>>>> @pic.compact! >>>>>>>> send_data @pic.image, :type => 'image/png', :disposition => >>>>>>>> 'inline' >>>>>>>> >>>>>>>> end >>>>>>>> >>>>>>>> >>>>>>>> On Tue, Jun 21, 2011 at 8:10 PM, joanne ta <[email protected]>wrote: >>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> On Tue, Jun 21, 2011 at 10:27 AM, Chirag Singhal < >>>>>>>>> [email protected]> wrote: >>>>>>>>> >>>>>>>>>> Oh yes... sorry about that. >>>>>>>>>> I assumed that you will find picture for every query. >>>>>>>>>> >>>>>>>>>> You can try this instead: >>>>>>>>>> def index >>>>>>>>>> @users= User.all >>>>>>>>>> @pic = [] >>>>>>>>>> >>>>>>>>>> @users.each do |p| >>>>>>>>>> @pic << Picture.where(:phrase_id => :route , :culture_id => >>>>>>>>>> p.culture_id).limit(1) >>>>>>>>>> end >>>>>>>>>> @pic.compact! >>>>>>>>>> end >>>>>>>>>> >>>>>>>>>> by calling compact! on the array, we will eliminate all nil >>>>>>>>>> object. >>>>>>>>>> >>>>>>>>>> On another note, are you sure, this is what you want to do? If you >>>>>>>>>> have 100 users, it will fire 100 sql queries which is not good. >>>>>>>>>> >>>>>>>>>> Yes i think i have that problem as well because if i remove >>>>>>>>>> "@users.each >>>>>>>>> do |p| " >>>>>>>>> and then it will cause undefined method of culture_id.. >>>>>>>>> plus when i call @pic.compact! , it gives me >>>>>>>>> >>>>>>>>> NoMethodError (You have a nil object when you didn't expect it! >>>>>>>>> You might have expected an instance of Array. >>>>>>>>> The error occurred while evaluating nil.compact!): >>>>>>>>> app/controllers/patients_controller.rb:29:in `index' >>>>>>>>> >>>>>>>>> what is mean? cuz i want to display picture on the browser too... >>>>>>>>> >>>>>>>>> please help... thank you very much >>>>>>>>> >>>>>>>>> Joanne >>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> On Tue, Jun 21, 2011 at 7:42 PM, joanne ta >>>>>>>>>> <[email protected]>wrote: >>>>>>>>>> >>>>>>>>>>> it does not work, it is complaining other error >>>>>>>>>>> >>>>>>>>>>> NoMethodError (undefined method `image' for [nil]:Array): >>>>>>>>>>> app/controllers/patients_controller.rb:27:in `block in index' >>>>>>>>>>> app/controllers/patients_controller.rb:25:in `each' >>>>>>>>>>> app/controllers/patients_controller.rb:25:in `index' >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> On Tue, Jun 21, 2011 at 9:57 AM, Chirag Singhal < >>>>>>>>>>> [email protected]> wrote: >>>>>>>>>>> >>>>>>>>>>>> Your index action should be something like this: >>>>>>>>>>>> >>>>>>>>>>>> def index >>>>>>>>>>>> @users= User.all >>>>>>>>>>>> @pic = [] >>>>>>>>>>>> >>>>>>>>>>>> @users.each do |p| >>>>>>>>>>>> @pic << Picture.where(:phrase_id => :route , :culture_id => >>>>>>>>>>>> p.culture_id).limit(1) >>>>>>>>>>>> end >>>>>>>>>>>> end >>>>>>>>>>>> -- >>>>>>>>>>>> You received this message because you are subscribed to the >>>>>>>>>>>> Google Groups "Ruby on Rails: Talk" group. >>>>>>>>>>>> To view this discussion on the web visit >>>>>>>>>>>> https://groups.google.com/d/msg/rubyonrails-talk/-/B259TKI0970J >>>>>>>>>>>> . >>>>>>>>>>>> >>>>>>>>>>>> To post to this group, send email to >>>>>>>>>>>> [email protected]. >>>>>>>>>>>> To unsubscribe from this group, send email to >>>>>>>>>>>> [email protected]. >>>>>>>>>>>> For more options, visit this group at >>>>>>>>>>>> http://groups.google.com/group/rubyonrails-talk?hl=en. >>>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> -- >>>>>>>>>>> -------------------------------- >>>>>>>>>>> >>>>>>>>>>> Thank you, >>>>>>>>>>> >>>>>>>>>>> Yen >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> -- >>>>>>>>>>> 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 >>>>>>>>>>> [email protected]. >>>>>>>>>>> To unsubscribe from this group, send email to >>>>>>>>>>> [email protected]. >>>>>>>>>>> For more options, visit this group at >>>>>>>>>>> http://groups.google.com/group/rubyonrails-talk?hl=en. >>>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> -- >>>>>>>>>> Chirag >>>>>>>>>> http://sumeruonrails.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 >>>>>>>>>> [email protected]. >>>>>>>>>> To unsubscribe from this group, send email to >>>>>>>>>> [email protected]. >>>>>>>>>> For more options, visit this group at >>>>>>>>>> http://groups.google.com/group/rubyonrails-talk?hl=en. >>>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> -- >>>>>>>>> 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 >>>>>>>>> [email protected]. >>>>>>>>> To unsubscribe from this group, send email to >>>>>>>>> [email protected]. >>>>>>>>> For more options, visit this group at >>>>>>>>> http://groups.google.com/group/rubyonrails-talk?hl=en. >>>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> -- >>>>>>>> Chirag >>>>>>>> http://sumeruonrails.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 >>>>>>>> [email protected]. >>>>>>>> To unsubscribe from this group, send email to >>>>>>>> [email protected]. >>>>>>>> For more options, visit this group at >>>>>>>> http://groups.google.com/group/rubyonrails-talk?hl=en. >>>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> -- >>>>>>> -------------------------------- >>>>>>> >>>>>>> Thank you, >>>>>>> >>>>>>> Yen >>>>>>> >>>>>>> -- >>>>>>> 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 >>>>>>> [email protected]. >>>>>>> To unsubscribe from this group, send email to >>>>>>> [email protected]. >>>>>>> For more options, visit this group at >>>>>>> http://groups.google.com/group/rubyonrails-talk?hl=en. >>>>>>> >>>>>> >>>>>> >>>>>> >>>>>> -- >>>>>> Chirag >>>>>> http://sumeruonrails.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 >>>>>> [email protected]. >>>>>> To unsubscribe from this group, send email to >>>>>> [email protected]. >>>>>> For more options, visit this group at >>>>>> http://groups.google.com/group/rubyonrails-talk?hl=en. >>>>>> >>>>> >>>>> >>>>> >>>>> -- >>>>> -------------------------------- >>>>> >>>>> Thank you, >>>>> >>>>> Yen >>>>> >>>>> -- >>>>> 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 [email protected] >>>>> . >>>>> To unsubscribe from this group, send email to >>>>> [email protected]. >>>>> For more options, visit this group at >>>>> http://groups.google.com/group/rubyonrails-talk?hl=en. >>>>> >>>> >>>> >>>> >>>> -- >>>> Chirag >>>> http://sumeruonrails.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 [email protected]. >>>> To unsubscribe from this group, send email to >>>> [email protected]. >>>> For more options, visit this group at >>>> http://groups.google.com/group/rubyonrails-talk?hl=en. >>>> >>> >>> >>> >>> -- >>> -------------------------------- >>> >>> Thank you, >>> >>> Yen >>> >>> -- >>> 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 [email protected]. >>> To unsubscribe from this group, send email to >>> [email protected]. >>> For more options, visit this group at >>> http://groups.google.com/group/rubyonrails-talk?hl=en. >>> >> >> >> >> -- >> Chirag >> http://sumeruonrails.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 [email protected]. >> To unsubscribe from this group, send email to >> [email protected]. >> For more options, visit this group at >> http://groups.google.com/group/rubyonrails-talk?hl=en. >> > > > -- > 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 [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/rubyonrails-talk?hl=en. > -- Chirag http://sumeruonrails.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 [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
