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PORuby on Rails - getting association data
 

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  1. PORuby on Rails - getting association data
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    <p>I´m trying to make a User - Infos association where my User has_many Infos.</p> <p>I´m trying to call my User Infos on the index form from Users.</p> <p>By calling <code>&lt;%= user.infos %&gt;</code> on my index.html.erb (Users) it returns me all datas from the Infos table like this:</p> <pre><code>[#&lt;Info id: 2, name: "Thales Miguel", date: "1989-07-14", area: "An\xC3\xA1lise de Sistemas", comment: "Analista j\xC3\xBAnior de sistemas.", user_id: 1, created_at: "2012-01-16 15:54:29", updated_at: "2012-01-16 15:54:29"&gt;] </code></pre> <p>I assumed that by doing <code>&lt;%= user.infos.comment %&gt;</code> it would return me the "comment" from that user, but all I get is this error:</p> <pre><code>undefined method `comment' for #&lt;ActiveRecord::Relation:0x3b8ebe8&gt; </code></pre> <p>What am I doing wrong?</p> <p>infos_controller:</p> <pre><code>class InfosController &lt; ApplicationController def create @user = User.find(params[:user_id]) @info = @user.infos.create(params[:info]) redirect_to user_path(@user) end def destroy @user = User.find(params[:user_id]) @info = @user.infos.find(params[:id]) @info.destroy redirect_to user_path(@user) end def new @user = User.new @user.build_info end end </code></pre> <p>info model:</p> <pre><code>class Info &lt; ActiveRecord::Base belongs_to :user end </code></pre> <p>user model:</p> <pre><code>class User &lt; ActiveRecord::Base validates :login, :presence =&gt; true validates :password, :presence =&gt; true, :length =&gt; {:minimum =&gt; 5} has_many :infos, :dependent =&gt; :destroy end </code></pre>
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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