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POHas_many/belongs_to association not saving due to polymorphic associations?
 

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  1. POHas_many/belongs_to association not saving due to polymorphic associations?
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    <p>I'm trying to create a log of attributes that have changed within each update to a certain message. The attributes are <code>IssueStatus</code> and <code>IssueType</code>, and both have two polymorphic associations with <code>UpdateAction</code>, that saves the <code>changed_from_id</code> and <code>changed_from_type</code> as well as <code>changed_to_id</code> and <code>changed_to_type</code> perfectly. </p> <pre><code>class IssueStatus &lt; ActiveRecord::Base has_many :update_actions, :as =&gt; :changed_to has_many :update_actions, :as =&gt; :changed_from end class IssueType &lt; ActiveRecord::Base has_many :update_actions, :as =&gt; :changed_to has_many :update_actions, :as =&gt; :changed_from end class Update &lt; ActiveRecord::Base has_many :update_actions end class UpdateAction &lt; ActiveRecord::Base belongs_to :changed_to, :polymorphic =&gt; true belongs_to :changed_from, :polymorphic =&gt; true belongs_to :update end </code></pre> <p>The problem is that trying to save a <code>UpdateAction</code> to <code>Update.update_actions</code> doesn't work. Rails returns <code>true</code> for both <code>save</code> and <code>save!</code>, but my development.log shows no SQL queries being performed. I cannot find out what I'm doing wrong, as nothing is logged (or I don't know how to find it). Working from the console:</p> <pre><code>&gt;&gt; action = UpdateAction.new =&gt; #&lt;UpdateAction id: nil, changed_from_id: nil, changed_from_type: nil, changed_to_id: nil, changed_to_type: nil, update_id: nil, created_at: nil, updated_at: nil&gt; &gt;&gt; action.changed_from = from =&gt; #&lt;IssueStatus id: 2, name: "Open", created_at: "2009-12-02 05:34:41", updated_at: "2009-12-02 05:34:41"&gt; &gt;&gt; action.changed_to = to =&gt; #&lt;IssueStatus id: 1, name: "Closed", created_at: "2009-12-02 05:34:30", updated_at: "2009-12-02 05:34:30"&gt; &gt;&gt; action.save =&gt; true &gt;&gt; update = Update.last =&gt; #&lt;Update id: 1, description: "Yawn", created_at: "2009-12-02 05:19:25", updated_at: "2009-12-02 05:19:25"&gt; &gt;&gt; u.update_actions &lt;&lt; action =&gt; [#&lt;UpdateAction id: 2, changed_from_id: 2, changed_from_type: "IssueStatus", changed_to_id: 1, changed_to_type: "IssueStatus", update_id: 1, created_at: "2009-12-02 05:35:16", updated_at: "2009-12-02 05:35:16"&gt;] &gt;&gt; u.save =&gt; true &gt;&gt; u.update_actions =&gt; [#&lt;UpdateAction id: 2, changed_from_id: 2, changed_from_type: "IssueStatus", changed_to_id: 1, changed_to_type: "IssueStatus", update_id: 1, created_at: "2009-12-02 05:35:16", updated_at: "2009-12-02 05:35:16"&gt;] &gt;&gt; u.reload =&gt; #&lt;Update id: 1, description: "Yawn", created_at: "2009-12-02 05:19:25", updated_at: "2009-12-02 05:19:25"&gt; &gt;&gt; u.update_actions =&gt; [] </code></pre> <p>Any help will be greatly appreciated, I guess I'm doing something wrong but I've been looking at it too long to figure out what. Thanks in advance!</p>
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    1. USJanteh
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    1. COIs `u.update_actions << action` a typo for `update.update_actions << action` ?
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      1. USSwanand
    2. COYeah, I mixed them up this time but it doesn't change the problem.
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