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PORails - updating a boolean value through a controller
 

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    <p>UPDATE: Controller code at the bottom of this question resolves the issue. I'm struggling to update a boolean confirmed_flag field in rails 3. Background: users can host events and can attend events through the attendances model (HATM). I have a form_for helper which uses radio buttons to allow a guest to be accepted or declined from an event:</p> <pre><code>&lt;%= form_for(@attendance) do |f| %&gt; &lt;%= render 'shared/error_messages', :object =&gt; f.object %&gt; &lt;div class="field"&gt; &lt;strong&gt;Event description: &lt;/strong&gt;&lt;%= @attendance.event.description %&gt;&lt;br/&gt; &lt;%= f.radio_button :confirmed_flag, 1 %&gt;Accept &lt;%= f.radio_button :confirmed_flag, 0 %&gt;Decline </code></pre> <p>This displays fine and hooks into the following controller update action:</p> <pre><code>def update @attendance = Attendance.find(params[:id]) respond_to do |format| if @attendance.update_attributes(params[:attendance][:confirmed_flag]) format.html { redirect_to(@attendance, :notice =&gt; 'Attendance was successfully updated.') } format.xml { head :ok } else format.html { render :action =&gt; "edit" } format.xml { render :xml =&gt; @attendance.errors, :status =&gt; :unprocessable_entity } end end end </code></pre> <p>As you can see, i want the results from the form_for to update the confirmed_flag, but when i look at the values in the rails console for a particular attendance i have updated to 'Accept' in the form, the value of confirmed_flag remains nil.</p> <p>Any help greatly appreciated.</p> <p>Edit: relevant server log snippet attached:</p> <pre><code>Started POST "/attendances/10" for 127.0.0.1 at 2011-03-21 23:42:18 +0000 Processing by AttendancesController#update as HTML Parameters: {"utf8"=&gt;"✓", "authenticity_token"=&gt;"Oz5qO/bcEJGmzIEH0xDOvtv7ecbF4wXXHpUtlIkDnfc=", "attendance"=&gt;{"confirmed_flag"=&gt;"1"}, "commit"=&gt;"Update", "id"=&gt;"10"} [1m[36mAttendance Load (15.6ms)[0m [1mSELECT "attendances".* FROM "attendances" WHERE "attendances"."id" = 10 LIMIT 1[0m Redirected to http://127.0.0.1:3000/attendances/10 Completed 302 Found in 109ms </code></pre> <p>Update: The following code in the controller works perfectly. Thanks everybody for your help as always.</p> <pre><code>def update @attendance = Attendance.find(params[:id]) respond_to do |format| if @attendance.update_attributes({:confirmed_flag =&gt; params[:attendance][:confirmed_flag]}) format.html { redirect_to(@attendance, :notice =&gt; 'Attendance was successfully updated.') } format.xml { head :ok } else format.html { render :action =&gt; "edit" } format.xml { render :xml =&gt; @attendance.errors, :status =&gt; :unprocessable_entity } end end end </code></pre>
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    1. COcan you post your log or the server log to see if the params are actually getting passed
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    2. COAdded to the main question body. Thanks.
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