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POCustom Active Admin form inputs for has_and_belongs_to_many relationship
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  1. POCustom Active Admin form inputs for has_and_belongs_to_many relationship
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    copied!<p>I have a very simple model</p> <pre><code>class Lifestyle &lt; ActiveRecord::Base attr_accessible :name has_and_belongs_to_many :profiles end </code></pre> <p>that has a <code>has_and_belongs_to_many</code> relationship with <code>Profile</code></p> <pre><code>class Profile &lt; ActiveRecord::Base attr_accessible ... belongs_to :occupation has_and_belongs_to_many :lifestyles accepts_nested_attributes_for :lifestyles end </code></pre> <p>I want to use ActiveAdmin to edit the Profile object, but also assign Lifestyles to a profile. It should be similar to dealing with <code>belongs_to :occupation</code>, as this is sorted out automatically by ActiveAdmin to a dropbox with the options pre-filled with available occupations. </p> <p>I've tried to use the <code>has_many</code> form builder method, but that only got me to show a form to type in the name of the Lifestyle and on submission, it returned an error.</p> <pre><code> f.object.lifestyles.build f.has_many :lifestyles do |l| l.input :name end </code></pre> <p>Error I get:</p> <pre><code>Can't mass-assign protected attributes: lifestyles_attributes </code></pre> <p><strong>The perfect way for me would be to build several checkboxes</strong>, one for each Lifestyle in the DB. Selected means that the lifestyle is connected to the profile, and unselected means to delete the relation. </p> <p>I'm having great doubts that this is possible using ActiveAdmin and without having to create very complex logic to deal with this. <strong>I would really appreciate it if you'd give your opinion and advise me if I should go this way or approach it differently.</strong></p>
 

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