The final hangup before this site goes to live beta and it i

Rails
1

Ok everyone. I appreciate your time if you are looking at this, as
this site is being setup to assist veterans who are having trouble
with the health care system through the VA. And as I said, we are
pretty close at this point to going live beta so if you can help me
over this hump it would be extremely appreciated.

We have a form setup that asks the user to select a date when
treatment began and then when treatment ended. After that they fill
out a free text field explaining what kind of problems they
experienced during their treatment. Then they submit it.

After that you go to user stories to view the stories submitted by
everyone. Except we are getting an error when we try to open this page
The error is posted below, and also the code from the models and
controllers and rhtml files. I REALLY would appreciate any help in
resolving this, so that I can put it into open beta, and then get it
out to hopefully help make the nation aware of what is going on within
the VA healthcare system.

Thank you for your time,

Dave

P.S. if you spot the problem could you provide easy to understand
steps to resolve it?

Error from the page:

NoMethodError in Admissions#index

Showing app/views/admissions/_admission.rhtml where line #2 raised:

You have a nil object when you didn’t expect it!
The error occurred while evaluating nil.treatment_start

Extracted source (around line #2):

1:


2: date: <%=admission.treatment.treatment_start-%>

3: story: <%=admission.treatment.description-%>
4: <%= debug(admission) %>
5: <%= debug(admission.treatment)%>

_admission.rhtml

date: <%=admission.treatment.treatment_start-%>
story: <%=admission.treatment.description-%> <%= debug(admission) %> <%= debug(admission.treatment)%>

treatment.rb (model)

class Treatment < ActiveRecord::Base
acts_as_rateable

belongs_to :user
belongs_to :condition
belongs_to :treatable, :polymorphic=>true
belongs_to :doctor_type

validates_presence_of :symptoms_start

def temp_rating=(temp_rating)
@rating=temp_rating
end

def temp_rating
@rating
end

end

admission.rb (model)

class Admission < ActiveRecord::Base
has_one :treatment, :as=>:treatable
belongs_to :hospital
end

treatments_controller.rb

class TreatmentsController < ApplicationController
requires_authentication :using => :authenticate,
:include => [:new, :create, :update, :edit],
:realm => ‘Unburdenus’

GET /treatments

GET /treatments.xml

def index
@treatments = Treatment.find(:all)

respond_to do |format|
  format.html # index.rhtml
  format.xml  { render :xml => @treatments.to_xml }
end

end

GET /treatments/1

GET /treatments/1.xml

def show
@treatment = Treatment.find(params[:id])

respond_to do |format|
  format.html # show.rhtml
  format.xml  { render :xml => @treatment.to_xml }
end

end

GET /treatments/new

def new
@user = User.current_user
@treatment = Treatment.new
@stylesheet_includes = [‘reset-fonts-
grids’,‘default’,‘glenn’,‘datebocks_engine’, ‘calendar-blue’]
@javascript_includes =
[“prototype”,“scriptaculous”,‘moo.fx.js’,‘accordion’,‘application’,“datebocks_engine”,
“calendar”, “lang/calendar-en”, “calendar-setup”,“fckeditor/
fckeditor”]
end

GET /treatments/1;edit

def edit
@treatment = Treatment.find(params[:id])
end

POST /treatments/1;rate

def rate
if params[:id].nil?
@treatment = Treatment.new
@treatment.temp_rating=params[:rating]
else
@treatment = Treatment.find(params[:id])
Rating.delete_all([“rateable_type = ‘Treatment’ AND rateable_id
= ? AND user_id = ?”, @treatment.id, User.current_user.id])
@treatment.add_rating Rating.new(:rating =>
params[:rating], :user_id => User.current_user.id)
end
end

POST /treatments

POST /treatments.xml

def create
@hospital = Hospital.find_or_create_by_name(params[:hospital]
[:name])
@admission = Admission.new(:hospital=>@hospital)
@treatment = Treatment.new(params[:treatment])
@treatment.condition =
Condition.find_or_create_by_name(params[:condition][:name])
@treatment.user = User.current_user
@treatment.treatable = @admission
respond_to do |format|
if @treatment.save
flash[:notice] = ‘Treatment was successfully created.’
format.html { redirect_to user_url(User.current_user) }
format.xml { head :created, :location =>
treatment_url(@treatment) }
else
format.html {
@stylesheet_includes = [‘reset-fonts-
grids’,‘default’,‘glenn’,‘datebocks_engine’, ‘calendar-blue’]
@javascript_includes =
[“prototype”,“scriptaculous”,‘moo.fx.js’,‘accordion’,‘application’,“datebocks_engine”,
“calendar”, “lang/calendar-en”, “calendar-setup”,“fckeditor/
fckeditor”]
render :action => “new”
}
format.xml { render :xml => @treatment.errors.to_xml }
end
end
end

PUT /treatments/1

PUT /treatments/1.xml

def update
@treatment = Treatment.find(params[:id])

respond_to do |format|
  if @treatment.update_attributes(params[:treatment])
    flash[:notice] = 'Treatment was successfully updated.'
    format.html { redirect_to treatment_url(@treatment) }
    format.xml  { head :ok }
  else
    format.html { render :action => "edit" }
    format.xml  { render :xml => @treatment.errors.to_xml }
  end
end

end

DELETE /treatments/1

DELETE /treatments/1.xml

def destroy
@treatment = Treatment.find(params[:id])
@treatment.destroy

respond_to do |format|
  format.html { redirect_to treatments_url }
  format.xml  { head :ok }
end

end
end

admissions_controller.rb

class AdmissionsController < ApplicationController

GET /admissions

GET /admissions.xml

def index
@admissions = Admission.find(:all)

respond_to do |format|
  format.html {
    @stylesheet_includes = ['reset-fonts-grids','default','glenn']
  }
  format.xml  { render :xml => @admissions.to_xml }
end

end

GET /admissions/1

GET /admissions/1.xml

def show
@admission = Admission.find(params[:id])

respond_to do |format|
  format.html # show.rhtml
  format.xml  { render :xml => @admission.to_xml }
end

end

GET /admissions/new

def new
@admission = Admission.new
end

GET /admissions/1;edit

def edit
@admission = Admission.find(params[:id])
end

POST /admissions

POST /admissions.xml

def create
@admission = Admission.new(params[:admission])

respond_to do |format|
  if @admission.save
    flash[:notice] = 'Admission was successfully created.'
    format.html { redirect_to admission_url(@admission) }
    format.xml  { head :created, :location =>

admission_url(@admission) }
else
format.html { render :action => “new” }
format.xml { render :xml => @admission.errors.to_xml }
end
end
end

PUT /admissions/1

PUT /admissions/1.xml

def update
@admission = Admission.find(params[:id])

respond_to do |format|
  if @admission.update_attributes(params[:admission])
    flash[:notice] = 'Admission was successfully updated.'
    format.html { redirect_to admission_url(@admission) }
    format.xml  { head :ok }
  else
    format.html { render :action => "edit" }
    format.xml  { render :xml => @admission.errors.to_xml }
  end
end

end

DELETE /admissions/1

DELETE /admissions/1.xml

def destroy
@admission = Admission.find(params[:id])
@admission.destroy

respond_to do |format|
  format.html { redirect_to admissions_url }
  format.xml  { head :ok }
end

end
end

2

Hmmm… you’re getting that error because somehow, the @admission
you’ve
selected from the database does not have a treatment associated with it.
It could be that you just have a leftover record in your system without
a
treatment.

You can overcome this several ways…

first, do a check in that partial

<% unless @admission.treatment.nil? %>
date: <%=admission.treatment.treatment_start-%>

story: <%=admission.treatment.description-%>
<% end %>

Or you can take the lazy (but as I understand it, expensive) way out and
just do
date: <%=admission.treatment.treatment_start rescue “No start
date”-%>

story: <%=admission.treatment.description rescue “no story”-%>

I’m going to go out on a limb here and say that you have unit tests in
place
to ensure that your associations between treatments and admissions are
working… so I bet it has something to do with your data.

3

Brian,

Thank you so much, I am now able to view that page, and start moving
towards final completion. I may push it out to open beta tonight so
that the rails newsgroup can view it and give some feedback.

Thank you,

Dave