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POaccepts_nested_attributes_for: What am I doing wrong
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  1. POaccepts_nested_attributes_for: What am I doing wrong
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    copied!<p>I try do create a one-to-many connection in rails4. However, although I don't get an error, the nested attribute is not stored.</p> <p>What am I doing wrong?</p> <p><strong>Station-Models</strong></p> <pre><code>class Station &lt; ActiveRecord::Base has_many :adresses accepts_nested_attributes_for :adresses end </code></pre> <p><strong>Adress-Model</strong></p> <pre><code> class Adress &lt; ActiveRecord::Base belongs_to :station end </code></pre> <p><strong>Station-Controller</strong> class StationsController &lt; ApplicationController</p> <pre><code> def new @station = Station.new @station.adresses.build end def create @station = Station.new(station_params) @station.save redirect_to @station end def index @stations = Station.all end private def station_params params.require(:station).permit(:name, adresses_attributes: [ :url ]) end end </code></pre> <p><strong>Station: new.html.erb</strong></p> <pre><code>&lt;%= form_for :station, url: stations_path do |station| %&gt; &lt;p&gt; &lt;%= station.label :name %&gt;&lt;br /&gt; &lt;%= station.text_field :name %&gt; &lt;/p&gt; &lt;%= station.fields_for :adresses do |adress| %&gt; &lt;div class="field"&gt; &lt;p&gt; &lt;%= adress.label :url %&gt;&lt;br /&gt; &lt;%= adress.text_field :url %&gt; &lt;/p&gt; &lt;/div&gt; &lt;% end %&gt; &lt;p&gt; &lt;%= station.submit %&gt; &lt;/p&gt; &lt;% end %&gt; </code></pre> <p>[edit]<br> I constructed a minimal example of this problem and documented it as a step-by-step instruction here: <a href="https://groups.google.com/forum/#!topic/rubyonrails-talk/4RF_CFChua0" rel="noreferrer">https://groups.google.com/forum/#!topic/rubyonrails-talk/4RF_CFChua0</a></p>
 

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