CODEWITHSUNDEEP
ruby-on-railsnested-attributes
achempion
achempion

Reputation: 814

why edit action try to save nested attribute

I have a models like Routine and RoutineContent for localization
in Routine.rb

Class Routine < ActiveRecord::Base
  has_many :routine_contents, dependent: :destroy
  accepts_nested_attributes_for :routine_contents, reject_if: proc {|attributes| attributes['title'].empty?}
end

and in RoutinesContent

class RoutineContent < ActiveRecord::Base
  belongs_to :routine
  validates_presence_of :title
end

In the new Routine action I puts on RoutineConten fields for languages. If title in one object is emty then this object will rejected.

When I go to edit action, I do this

def set_routine_contents
    contents = @routine.routine_contents.group_by {|content| content.lang}
    if contents['ru'].nil?
      @routine.routine_contents << RoutineContent.new(lang: 'ru')
    end
    if contents['en'].nil?
      @routine.routine_contents << RoutineContent.new(lang: 'en')
    end
end

end after this Rails INSERT INTO emty object in table, why? How I can disable it? Thanks

Upvotes: 1

Views: 81

Answers (2)

achempion
achempion

Reputation: 814

Solution

def set_routine_contents
    contents = @routine.routine_contents.group_by {|content| content.lang}
    if contents['ru'].nil?
      @routine.routine_contents.build(lang: 'ru')
    end
    if contents['en'].nil?
      @routine.routine_contents.build(lang: 'en')
    end
end

Use the build method. Add to Array via << it was bad idea

Upvotes: 1

alno
alno

Reputation: 3616

has_many association implemented with foreign key in routine_id in routine_contents table.

So adding new RoutineContent to your Routine requires determined primary key in Routine to write to routine_id, and causes Routine to save if not saved yet.

Upvotes: 0

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