Rails - Jun 2012 - ActiveRecord::AssociationTypeMismatch in UsersController#update

Hi
Im trying to link my User model to a Teams model. I seem to be getting
the following errors. Any help would be great as Im just new to RoR
Thanks

error
ActiveRecord::AssociationTypeMismatch in UsersController#update

Team(#2183395560) expected, got String(#2174675960)
app/controllers/users_controller.rb:67:in `update''
app/controllers/users_controller.rb:66:in `update''


users_controller.rb
 # PUT /users/1
  # PUT /users/1.json
  def update
    @user = User.find(params[:id])

    respond_to do |format|
      if @user.update_attributes(params[:user])
        format.html { redirect_to(users_url,
                :notice => "The information for #{@user.first_name}
#{@user.last_name} was successfully updated.") }
        format.json { head :no_content }
      else
        format.html { render :action => "edit" }
        format.json { render :json => @user.errors, :status =>
:unprocessable_entity }
      end
    end
  end


user.rb
class User < ActiveRecord::Base
  belongs_to :team
  attr_accessible :team


team.rb
class Team < ActiveRecord::Base
  has_many  :users
  has_many  :schedules
  attr_accessible :name
end


user/_form.html.erb
<div class="_25">
      <p>
              <%= f.label :team %>
              <%= select("user", "team", Team.all.collect
{ |p| [p.name,
p.id] }, {:include_blank => ''None''}) %>
      </p>
    </div>

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On 9 June 2012 03:36, Paul McGuane
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org>
wrote:
> Hi
> Im trying to link my User model to a Teams model. I seem to be getting
> the following errors. Any help would be great as Im just new to RoR
> Thanks
>
> error
> ActiveRecord::AssociationTypeMismatch in UsersController#update
>
> Team(#2183395560) expected, got String(#2174675960)
> app/controllers/users_controller.rb:67:in `update''
> app/controllers/users_controller.rb:66:in `update''
Perhaps it would be useful if you told us which is line 66.
>
>
> users_controller.rb
>  # PUT /users/1
>  # PUT /users/1.json
>  def update
>    @user = User.find(params[:id])
>
>    respond_to do |format|
>      if @user.update_attributes(params[:user])
In case I have made a lucky guess and it is this line then look in
development.log to see what params[:user] will be.  Also have a look
at the Rails Guide on debugging to see techniques that can be used to
debug your code.

Colin
>        format.html { redirect_to(users_url,
>                :notice => "The information for #{@user.first_name}
> #{@user.last_name} was successfully updated.") }
>        format.json { head :no_content }
>      else
>        format.html { render :action => "edit" }
>        format.json { render :json => @user.errors, :status =>
> :unprocessable_entity }
>      end
>    end
>  end
>
>
> user.rb
> class User < ActiveRecord::Base
>  belongs_to :team
>  attr_accessible :team
>
>
> team.rb
> class Team < ActiveRecord::Base
>  has_many  :users
>  has_many  :schedules
>  attr_accessible :name
> end
>
>
> user/_form.html.erb
> <div class="_25">
>      <p>
>              <%= f.label :team %>
>              <%= select("user", "team",
Team.all.collect { |p| [p.name,
> p.id] }, {:include_blank => ''None''}) %>
>      </p>
>    </div>
>
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http://api.rubyonrails.org/classes/ActiveRecord/AssociationTypeMismatch.html
 

I gues it''s raise because you don''t assign object. You should
change it
this way:

<%= select("user", "*team_id*", Team.all.collect { |p|
[p.name,
p.id] }, {:include_blank => ''None''}) %>  


суббота, 9 июня 2012 г., 6:36:36 UTC+4 пользователь Ruby-Forum.com User 
написал:
>
> Hi 
> Im trying to link my User model to a Teams model. I seem to be getting 
> the following errors. Any help would be great as Im just new to RoR 
> Thanks 
>
> error 
> ActiveRecord::AssociationTypeMismatch in UsersController#update 
>
> Team(#2183395560) expected, got String(#2174675960) 
> app/controllers/users_controller.rb:67:in `update'' 
> app/controllers/users_controller.rb:66:in `update'' 
>
>
> users_controller.rb 
>  # PUT /users/1 
>   # PUT /users/1.json 
>   def update 
>     @user = User.find(params[:id]) 
>
>     respond_to do |format| 
>       if @user.update_attributes(params[:user]) 
>         format.html { redirect_to(users_url, 
>                 :notice => "The information for #{@user.first_name}
> #{@user.last_name} was successfully updated.") } 
>         format.json { head :no_content } 
>       else 
>         format.html { render :action => "edit" } 
>         format.json { render :json => @user.errors, :status => 
> :unprocessable_entity } 
>       end 
>     end 
>   end 
>
>
> user.rb 
> class User < ActiveRecord::Base 
>   belongs_to :team 
>   attr_accessible :team 
>
>
> team.rb 
> class Team < ActiveRecord::Base 
>   has_many  :users 
>   has_many  :schedules 
>   attr_accessible :name 
> end 
>
>
> user/_form.html.erb 
> <div class="_25"> 
>       <p> 
>               <%= f.label :team %> 
>               <%= select("user", "team",
Team.all.collect { |p| [p.name,
> p.id] }, {:include_blank => ''None''}) %> 
>       </p> 
>     </div> 
>
> -- 
> Posted via http://www.ruby-forum.com/. 
>
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Hi
Thanks for the help, i managed to get this to work with the following 
line

<%= f.select("team_id", Team.all.collect { |p| [p.name, p.id] }, { 
:include_blank => ''None'' }) %>

though in my view/users/index
when i call the following <%= user.team %> i am getting this displayed 
#<Team:0x10532a4f0>, i want it to display what team the player has been 
allocated to

in my view/teams/show if i call the following
 <% for player in @team.users %><%= player.first_name %> <%= 
player.last_name %>
 i can see what players are loaded for a particular team

thanks

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On Sat, Jun 9, 2012 at 7:47 AM, Paul McGuane
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org> wrote:
> though in my view/users/index
> when i call the following <%= user.team %> i am getting this
displayed
> #<Team:0x10532a4f0>, i want it to display what team the player has
been
> allocated to
That (#<Team:0x10532a4f0>) *is* the team - a Team *object*.

Maybe you actually want to display an *attribute* of the object? Like
says its name? Look at your own ''player'' example.

-- 
Hassan Schroeder ------------------------
hassan.schroeder-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
http://about.me/hassanschroeder
twitter: @hassan

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hi hassan
i have tried something similar and got this

NoMethodError in Users#index

Showing 
/Users/*****/Sites/rails_projects/*****/app/views/users/index.html.erb 
where line #67 raised:

undefined method `teams'' for nil:NilClass
Extracted source (around line #67):

64:                 <td
65:                 <% if session[:user_id] == user.id %> 
class="active_cell"
66:                 <% end %>>
67:                   <% for team in @user.teams
68:                        team.name
69:                      end %>
70:

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On Sat, Jun 9, 2012 at 8:05 AM, Paul McGuane
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org> wrote:
> i have tried something similar and got this
? That''s not remotely similar to your original example:
> when i call the following <%= user.team %> i am getting this
displayed
Doesn''t it seem apparent that if this <%= user.team %> shows you
the
team object, <%= user.team.name %> would show you the e.g. name
attribute of that object?

-- 
Hassan Schroeder ------------------------
hassan.schroeder-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
http://about.me/hassanschroeder
twitter: @hassan

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Thanks Hassan, I now have a better understanding of what you mean

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