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#3009 ✓invalid

Bug in rails? Or bug in the model?

Reported by Manoj | August 8th, 2009 @ 07:00 PM

The following are the models in play.

class TestEntity < ActiveRecord::Base
  belongs_to :node

class Node < ActiveRecord::Base belongs_to :test_group belongs_to :build has_many :test_entities has_many :networks has_many :attachments end

class Build < ActiveRecord::Base has_many :nodes end

Referring to build from a test_entity via node fails. Instead of a build object, an empty node object is returned.

>> te = TestEntity.find(1)
=> #<TestEntity id: 1, node_id: 1, node_type: "MDS", created_at: "2009-08-07 00:18:19", updated_at: "2009-08-07 00:18:19">

>> te.node => #<Node id: 1, node_name: "lin3", architecture: "i686", mem_size: 2048, build_id: 1, test_group_id: 1, created_at: "2009-08-07 00:18:19", updated_at: "2009-08-07 00:18:19">

>> => #<Node id: nil, node_name: nil, architecture: nil, mem_size: nil, build_id: nil, test_group_id: nil, created_at: nil, updated_at: nil>
Querying for the build with the build_id succeeds.
>> build = Build.find(te.node.build_id)
=> #<Build id: 1, lbats_build_id: nil, lbats_build_name: nil, architecture: "i686", os: "GNU/Linux", os_distribution: "redhat", kernel_version: "2.6.18-128.1.1-prep", created_at: "2009-08-07 00:18:19", updated_at: "2009-08-07 00:18:19">

Comments and changes to this ticket

  • Matt Jones

    Matt Jones August 10th, 2009 @ 08:34 AM

    • State changed from “new” to “invalid”

    Naming models after ActiveRecord methods will cause serious problems, such as this one. '' is calling the build method on te's node association, not doing what you want. The only workaround is, as the old joke goes, to "stop doing that".

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