# Strange behavior of show in applic

**URL:** <https://www.ruby-forum.com/t/strange-behavior-of-show-in-applic/126267>\
**Category:** Rails\
**Created:** [January 16, 2008, 9:38pm UTC](https://www.ruby-forum.com/t/strange-behavior-of-show-in-applic/126267 "2008-01-16T21:38:49Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![extempore](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/e/6bbea6/32.png) [@extempore](https://www.ruby-forum.com/u/extempore)\
**Post date:** [January 16, 2008, 9:38pm UTC](https://www.ruby-forum.com/t/strange-behavior-of-show-in-applic/126267/1 "2008-01-16T21:38:49Z")

</div>

I have a form in wich I can succesfully add someone to my db.  
When I come to my list page I kan see everyone in that list so far so  
good.  
when I click on a member I can see the member in detail but the “ploeg”  
part is not giving me the info from the db back and it puts instead for  
a second time “ploeg” example  
Original input  
naam: Paul  
Achternaam: Pietersen  
Score:9  
Ploeg: J (can be empty or P or SR  
geslacht: M/F

when I select this player to see the details after creation I get this.  
naam: Paul  
Achternaam: Pietersen  
Score:9  
Ploeg: ploeg  
geslacht: M/F

when I want to edit this member I get the correct info back like this  
naam: Paul  
Achternaam: Pietersen  
Score:9  
Ploeg: J (can be empty or P or SR  
geslacht: M/F  
this is my controller

```auto
class PlayersController < ApplicationController

  def index
    list
    render :action => 'index'

  end
  def list
    @player = Player.find(:all)
  end

  def all_sorted
    @heren=Player.heren
    @dames=Player.dames
  end

  def score_sn
    @senior=Player.sr
  end

  def score_jr
    @junior=Player.junior
  end

  def score_p
    @pupil =Player.pupil
  end

  def score_top
    @man =Player.topm
    @vrouw=Player.topv
  end
  def new
    @player = Player.new
  end

  def create
    @player = Player.new(params[:player])
    if @player.save
      flash[:notice]='Speler is met succes toegevoegd'
      redirect_to :action =>'list'
    else
      render :action => 'new'
    end
  end
  def show
    @player = Player.find(params[:id])
  end
  def edit
    @player = Player.find(params[:id])
  end

  def update
    @player = Player.find(params[:id])
    if @player.update_attributes(params[:player])
      flash[:notice] = 'de speler is met succes bijgewerkt.'
      redirect_to :action => 'show', :id => @player
    else
      render :action => 'edit'
    end
  end

  def destroy
    player.find(params[:id]).destroy
    redirect_to :action => 'list'
  end
end
```

this is the edit.rhtml

```auto
<h1>Wijzigen van speler: <%= @player.naam -%></h1>

<% form_tag :action => 'update', :id => @player do %>
    <%= render :partial => 'form' %>
    <%= submit_tag 'Edit' %>
<% end %>

<%= link_to 'Show', :action => 'show', :id => @player %> |
<%= link_to 'Back', :action => 'list' %>
```

de show rhtml

```auto
<h1><%= @player.naam %></h1>

<p><strong>Naam: </strong> <%= @player.naam %><br />
<strong>Achternaam: </strong> <%= @player.achternaam %><br />
<strong>Score:</strong> <%= @player.score %><br />
<strong>Ploeg:</strong> <%= @player.ploeg %> <br />
<strong>Geslacht:</strong> <%= @player.geslacht %>
</p>
<%= link_to 'Edit', :action => 'edit', :id => @player %> |
<%= link_to 'Back', :action => 'list' %>
```

de \_form.rhtml

```auto

<%= error_messages_for 'player' %>

<!--[form:product]-->
<p><label for="player_naam">naam</label><br/>
<%= text_field 'player', 'naam' %></p>

<p><label for="player_achternaam">achternaam</label><br/>
<%= text_field 'player', 'achternaam' %></p>

<p><label for="player_score">score</label><br/>
<%= text_field 'player', 'score' %></p>

<p><label for="player_ploeg">Ploeg</label><br/>
<%= text_field 'player', 'ploeg' %></p>

<p><label for="player_geslacht">Geslacht</label><br/>
<%= text_field 'player', 'geslacht' %></p>
<!--[eoform:player]-->
```

the model is this

```auto

class Player < ActiveRecord::Base
  validates_presence_of :naam, :achternaam, :score, :ploeg, :geslacht
  validates_numericality_of :score

  @@ploegen={ 'P' => 'pupil', 'J' => 'junior', 'SR' => 'senior'}

  def to_s
    sprintf(" #{naam} #{achternaam} - #{score} ")
  end
  def self.heren
    Player.find(:all, :conditions =>{:geslacht =>"M"})
  end
  def self.dames
    Player.find(:all, :conditions =>{:geslacht =>"V"})
  end
  def ploeg
    @@ploegen = :ploeg
  end
  def self.sr
    @senior = Player.find(:all, :conditions => "ploeg = 'SR' OR ploeg =
''")
  end
  def self.pupil
    Player.find(:all, :conditions =>{:ploeg =>"P"})
  end
  def self.junior
    Player.find(:all, :conditions =>{:ploeg =>"J"})
  end
  def self.topm
    @man = Player.find_all_by_geslacht("M", :order => "score DESC",
:limit => 3)
  end
  def self.topv
    @vrouw = Player.find_all_by_geslacht("V", :order => "score DESC",
:limit => 3)
  end
  protected
  def validate
    # errors.add(:fieldname_as_symbol, "foutboodschap")
  end

end
```

thanks for your help

Paul

---

<div class="post-metadata">

**Author:** ![extempore](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/e/6bbea6/32.png) [@extempore](https://www.ruby-forum.com/u/extempore)\
**Post date:** [January 16, 2008, 10:23pm UTC](https://www.ruby-forum.com/t/strange-behavior-of-show-in-applic/126267/2 "2008-01-16T22:23:03Z")

</div>

it’s a bit late and i’m not sure, i analyzed your code to it’s full  
extend, but this function

def ploeg  
@@ploegen = :ploeg  
end

looks a bit weird to me, because:

- you assign a symbol to a class attribute
- and hand this back

so the effect is like:  
def ploeg  
“ploeg”  
end

- and it’s within all those class level funcs the only object lvl
- and it overwrites the ploeg accessor

---

<div class="post-metadata">

**Author:** ![extempore](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/e/6bbea6/32.png) [@extempore](https://www.ruby-forum.com/u/extempore)\
**Post date:** [January 17, 2008, 6:36am UTC](https://www.ruby-forum.com/t/strange-behavior-of-show-in-applic/126267/3 "2008-01-17T06:36:47Z")

</div>

Thorsten,  
you did point out the right place however changing it here did not solve  
a thing I tried @ploeg instead of :ploeg and ‘ploeg’  
but no change here do you have a sugestion to replace this?

thanks  
paul

Thorsten M. wrote:\> it’s a bit late and i’m not sure, i analyzed  
your code to it’s full \> extend, but this function\> \> def ploeg\>Â  
@@ploegen = :ploeg\> end\> \> looks a bit weird to me, because:\> - you  
assign a symbol to a class attribute\> - and hand this back\> \> so the  
effect is like:\> def ploeg\>Â Â “ploeg”\> end\> \> - and it’s within all  
those class level funcs the only object lvl\> - and it overwrites the  
ploeg accessor