Hi Colin,
Thank you for your comment, I was actually missing a "end" tag to close off
the class in the controller!
Cheers anyway
J
On Tuesday, April 2, 2013 3:34:11 PM UTC+1, Jax wrote:
>
> Hi All,
>
> just in a spot of bother with this gem, I am trying to create a new
> location and get the above msg.
>
> here is my controller:
>
> class LocationsController < ApplicationController
> # GET /locations
> # GET /locations.json
>
> def index
> @locations = Location.all
> @json = Location.all.to_gmaps4rails
> end
> respond_to do |format|
> format.html # index.html.erb
> format.json { render json: @locations }
> end
> end
>
> # GET /locations/1
> # GET /locations/1.json
> def show
> @location = Location.find(params[:id])
> @json = Location.all.to_gmaps4rails
> respond_to do |format|
> format.html # show.html.erb
> format.json { render json: @location }
> end
> end
>
> # GET /locations/new
> # GET /locations/new.json
> def new
> @location = Location.new
> @json = Location.all.to_gmaps4rails
>
> respond_to do |format|
> format.html # new.html.erb
> format.json { render json: @location }
> end
> end
>
> # GET /locations/1/edit
> def edit
> @location = Location.find(params[:id])
> @json = Location.all.to_gmaps4rails
> end
>
> # POST /locations
> # POST /locations.json
> def create
> @location = Location.new(params[:location])
> @json = Location.all.to_gmaps4rails
> respond_to do |format|
> if @location.save
> format.html { redirect_to @location, notice: 'Location was
> successfully created.' }
> format.json { render json: @location, status: :created, location:
> @location }
> else
> format.html { render action: "new" }
> format.json { render json: @location.errors, status:
> :unprocessable_entity }
> end
> end
> end
>
> # PUT /locations/1
> # PUT /locations/1.json
> def update
> @location = Location.find(params[:id])
> @json = Location.all.to_gmaps4rails
> respond_to do |format|
> if @location.update_attributes(params[:location])
> format.html { redirect_to @location, notice: 'Location was
> successfully updated.' }
> format.json { head :no_content }
> else
> format.html { render action: "edit" }
> format.json { render json: @location.errors, status:
> :unprocessable_entity }
> end
> end
> end
>
> # DELETE /locations/1
> # DELETE /locations/1.json
> def destroy
> @location = Location.find(params[:id])
> @location.destroy
> @json = Location.all.to_gmaps4rails
> respond_to do |format|
> format.html { redirect_to locations_url }
> format.json { head :no_content }
> end
> end
>
> and the _form I use to create the new location:
>
> <%= form_for(@location) do |f| %>
> <% if @location.errors.any? %>
> <div id="error_explanation">
> <h2><%= pluralize(@location.errors.count, "error") %> prohibited
> this location from being saved:</h2>
>
> <ul>
> <% @location.errors.full_messages.each do |msg| %>
> <li><%= msg %></li>
> <% end %>
> </ul>
> </div>
> <% end %>
>
> <div class="field">
> <%= f.label :id %><br />
> <%= f.number_field :id %>
> </div>
> <div class="field">
> <%= f.label :name %><br />
> <%= f.text_field :name %>
> </div>
> <div class="field">
> <%= f.label :coordinates %><br />
> <%= f.text_field :coordinates %>
> </div>
> <div class="field">
> <%= f.label :course_id %><br />
> <%= f.number_field :course_id %>
> </div>
> <div class="field">
> <%= f.label :college_id %><br />
> <%= f.number_field :college_id %>
> </div>
> <div class="actions">
> <%= f.submit %>
> </div>
> <% end %>
>
> This is the error msg in full:
>
> NoMethodError in Locations#new
>
> Showing *C:/Postgrads0204/app/views/locations/_form.html.erb* where line *
> #1* raised:
>
> undefined method `model_name' for NilClass:Class
>
> Extracted source (around line *#1*):
>
> 1: <%= form_for(@location) do |f| %>
>
> 2: <% if @location.errors.any? %>
>
> 3: <div id="error_explanation">
>
> 4: <h2><%= pluralize(@location.errors.count, "error") %> prohibited
> this location from being saved:</h2>
>
> Trace of template inclusion: app/views/locations/new.html.erb
>
> Rails.root: C:/Postgrads0204
> Application Trace <http://localhost:3000/locations/new#> | Framework
> Trace<http://localhost:3000/locations/new#>
> | Full Trace <http://localhost:3000/locations/new#>
>
> app/views/locations/_form.html.erb:1:in
> `_app_views_locations__form_html_erb___82209480_46213008'
>
> app/views/locations/new.html.erb:3:in
> `_app_views_locations_new_html_erb___810294894_46206828'
>
>
> Any Ideas where am I going wrong?
>
> Cheers
>
> J
>
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