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POnil is not a symbol for form_for
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  1. POnil is not a symbol for form_for
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    copied!<p>I'm writing a simple form for editing customer's attributes (with Rails 3.1 and Ruby 1.9.3). The controller code:</p> <pre><code>def edit cust_id = params[:cust_id] output_id = params[:output_id] @cust = CustOutput.find(:all, :conditions =&gt; {:cust_id =&gt; cust_id, :output_id =&gt; output_id }) logger.info(@cust[0].cust_id) end </code></pre> <p>In the view:</p> <pre><code>&lt;h2&gt; Editing customer &lt;%=@cust[0].cust_id %&gt; with output id &lt;%=@cust[0].output_id %&gt;&lt;/h2&gt; &lt;div&gt; &lt;%= form_for @cust[0] do |cust| %&gt; &lt;%= render "shared/error_messages", :target =&gt; @cust[0] %&gt; &lt;div id='id' class='outerDiv'&gt; &lt;%= cust.text_field :cust_id, :size =&gt; 20 %&gt; &lt;/div&gt; &lt;div id='email1' class='outerDiv'&gt; &lt;label for='email1'&gt;Email Part1&lt;/label&gt; &lt;%= cust.text_field :email_part1, :size =&gt; 20 %&gt; &lt;/div&gt; &lt;div id='email2' class='outerDiv'&gt; &lt;label for='email2'&gt;Email Part 2&lt;/label&gt; &lt;%= cust.text_field :email_part2, :size =&gt; 20 %&gt; &lt;/div&gt; &lt;div id='dt' class='outerDiv'&gt; &lt;label for='dt'&gt;Delivery Type&lt;/label&gt; &lt;%= cust.text_field :delivery_type, :size =&gt; 20 %&gt; &lt;/div&gt; &lt;%= cust.submit "Save" %&gt; &lt;span class="cancel"&gt;&lt;%= link_to "Cancel", :action=&gt;"load", :cust_name=&gt;"#{@cust[0].cust_id}" %&gt; &lt;% end %&gt; &lt;/div&gt; </code></pre> <p>The error message I got from opening edit page (http://localhost:3000/edit?cust_id=2&amp;output_id=6):</p> <pre><code>nil is not a symbol Extracted source (around line #3): 1: &lt;h2&gt; Editing customer &lt;%=@cust[0].cust_id %&gt; with output id &lt;%=@cust[0].output_id %&gt;&lt;/h2&gt; 2: &lt;div&gt; 3: &lt;%= form_for @cust[0] do |cust| %&gt; 4: &lt;%= render "shared/error_messages", :target =&gt; @cust[0] %&gt; 5: &lt;div id='id' class='outerDiv'&gt; 6: &lt;%= cust.text_field :cust_id, :size =&gt; 20 %&gt; </code></pre> <p>The first thing is to check whether @cust[0] passed in is a nil object. In rails console I checked (with the provided cust_id and output_id) </p> <pre><code>@cust = CustOutput.find(:all, :conditions =&gt; {:cust_id =&gt; 2, :output_id =&gt; 6 }) CustOutput Load (0.7ms) SELECT "cust_outputs".* FROM "cust_outputs" WHERE "cust_outputs"."cust_id" = 22 AND "cust_outputs"."output_id" = 6 =&gt; [#&lt;custOutput cust_id: 2, output_id: 6, email_part1: "abc@company.com", email_part2: nil, delivery_type: "ftp"&gt;] </code></pre> <p>Also from the logger I put in controller, there's actually a valid and correct cust_id output in the log. So, why do I still get nil is not a symbol error message? I've checked on CustOutput model as well and all attr_accessible fields are present.</p>
 

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