> 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
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>>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> --
>>>>>>>>>> --------------------------------
>>>>>>>>>>
>>>>>>>>>> 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
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>>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> --
>>>>>>>>> Chirag
>>>>>>>>> http://sumeruonrails.com
>>>>>>>>>
>>>>>>>>> --
>>>>>>>>> You received this message because you are subscribed to the Google
>>>>>>>>> Groups "Ruby on Rails: Talk" group.
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>>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> --
>>>>>>>> You received this message because you are subscribed to the Google
>>>>>>>> Groups "Ruby on Rails: Talk" group.
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>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> Chirag
>>>>>>> http://sumeruonrails.com
>>>>>>>
>>>>>>> --
>>>>>>> You received this message because you are subscribed to the Google
>>>>>>> Groups "Ruby on Rails: Talk" group.
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>>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> --------------------------------
>>>>>>
>>>>>> Thank you,
>>>>>>
>>>>>> Yen
>>>>>>
>>>>>> --
>>>>>> You received this message because you are subscribed to the Google
>>>>>> Groups "Ruby on Rails: Talk" group.
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>>>>>>
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> 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
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>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> --------------------------------
>>>>
>>>> Thank you,
>>>>
>>>> Yen
>>>>
>>>> --
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>>>>
>>>
>>>
>>>
>>> --
>>> Chirag
>>> http://sumeruonrails.com
>>>
>>> --
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>>>
>>
>>
>>
>> --
>> --------------------------------
>>
>> Thank you,
>>
>> Yen
>>
>> --
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>>
>
>
>
> --
> Chirag
> http://sumeruonrails.com
>
> --
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