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POAccepts Nested Attributes For - edit form displays incorrect number of items ( + !map:ActiveSupport::OrderedHash {} )
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  1. POAccepts Nested Attributes For - edit form displays incorrect number of items ( + !map:ActiveSupport::OrderedHash {} )
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    copied!<p>I have a teacher profile model which has many subjects (separate model). I want to add subjects to the profile on the same form for creating/editing a profile. I'm using accepts_nested_attributes for and this works fine for creation. However on the edit page I am getting a very strange error - instead of seeing 3 subjects (I added three at create and a look into the console confirms this), I see 12 subjects(!). </p> <pre><code>#Profile model class Profile &lt; ActiveRecord::Base has_many :subjects accepts_nested_attributes_for :subjects end #Subject Model class Subject &lt; ActiveRecord::Base belongs_to :profile end #Profile Controller (only showing deviations from normal RESTFUL setup) def new @profile = Profile.new 3.times do @profile.subjects.build end end #Here's 1 of three parts of the subject output of = debug @profile errors: !ruby/object:ActiveRecord::Errors base: *id004 errors: !map:ActiveSupport::OrderedHash {} subjects: - &amp;id001 !ruby/object:Subject attributes: exam: Either name: "7" created_at: 2010-04-15 10:38:13 updated_at: 2010-04-15 10:38:13 level: Either id: "31" profile_id: "3" attributes_cache: {} # Note that 3 of these attributes are displayed despite me seeing 12 subjects on screen </code></pre> <p> </p> <p>Other info in case it's relevant.</p> <p>Rails: 2.3.5, Ruby 1.8.7 p149, HAML, inherited_resources</p> <p>I've never had so much difficulty with a bug before - I've already lost about 8 hours to it. Would really appreciate any help!</p> <p>Thanks to any courageous takers</p> <p>Jack</p>
 

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