CODEWITHSUNDEEP
ruby-on-railsnested-forms
HappyHacking
HappyHacking

Reputation: 868

rails nested forms unknown attribute

I've read a couple of other posts for this error here, but no one really fits my problem.

The produced error is 

ActiveRecord::UnknownAttributeError: unknown attribute: practice_id

It's happening while I try to build the uebung_maps in the rails console:


irb(main):003:0> @p = Practice.new
=> # Practice id: nil, datum: nil, start: nil, end: nil, group: nil, topic: nil, theoab: nil, pracab: nil, action: nil, water: nil, tools: nil, broken: nil, toolkeeper: nil, atw: nil, atfinfo: nil, created_at: nil, updated_at: nil>
irb(main):004:0> @p.uebung_maps.build
ActiveRecord::UnknownAttributeError: unknown attribute: practice_id
    from /home/basti/.rvm/gems/ruby-1.9.3-p392/gems/activerecord-3.2.13/lib/active_record/attribute_assignment.rb:88:in `block in assign_attributes'

my models and so on looks like following

Practice Model

class Practice < ActiveRecord::Base
  has_many :uebung_maps
  has_many :persons
  accepts_nested_attributes_for :uebung_maps
  attr_accessible :uebung_map_attributes, :action, :atfinfo, :atw, :broken, :datum, :end, :group, :pracab, :start, :theoab, :toolkeeper, :tools, :topic, :water
end

Uebung_map Model

class UebungMap < ActiveRecord::Base
  belongs_to :person
  belongs_to :role
  belongs_to :practice
  belongs_to :vehicle
  attr_accessible :person_id, :role_id, :uebung_id, :vehicle_id
end

Upvotes: 0

Views: 1571

Answers (2)

HappyHacking
HappyHacking

Reputation: 868

I've finally found the problem. The column in uebung_map wich should point to Pratice was named uebung_id in stead of practice_id.. now it's working

Upvotes: 0

Lu&#237;s Ramalho
Lu&#237;s Ramalho

Reputation: 10218

Try adding :practice_id to your attr_accessible, like so:

attr_accessible :person_id, :role_id, :uebung_id, :vehicle_id, :practice_id

Upvotes: 2

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