model - rails application undefined method for class -


i rewrote create function in scaffold review after making associated concert model. when try submit form create review though error saying

undefined method `reviews' #class:0xab9972c>

def create     @review = concert.reviews.create(review_params)  end

my concert model looks 

class concert < activerecord::base  validates_presence_of :artist validates_presence_of :venue validates_presence_of :date  has_many :reviews end

and review model looks this

class review < activerecord::base      validates_presence_of :artist     validates_presence_of :venue     validates_presence_of :date      belongs_to :user     belongs_to :concert end

i added relations within migration files still error. can explain me causing , how go creating review belongs concert?

the association has_many :reviews instance method. suspect in create method want this:

def create     @concert = concert.new     @concert.save     @review = @concert.reviews.create(review_params)  end

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