The reason you get this error is conflict between association and column with the same name (I know it from your deal_params
method).
You should either remove your client
column from deals
table, rename this column or rename the belongs_to :client
association.
Multiple belongs_to and AssociationTypeMismatch
-
20-09-2022 - |
Question
I've defined three models (User is based on devise).
class Deal < ActiveRecord::Base
belongs_to :user
belongs_to :client #if i cut this line everything works fine
end
class Client < ActiveRecord::Base
has_many :deals
end
class User < ActiveRecord::Base
# Include default devise modules. Others available are:
# :confirmable, :lockable, :timeoutable and :omniauthable
devise :database_authenticatable, :registerable,
:recoverable, :rememberable, :trackable, :validatable
has_many :deals
end
In deals_controller.rb I have:
def create
@deal = current_user.deals.build(deal_params) #ok
respond_to do |format|
if @deal.save
format.html { redirect_to @deal, notice: 'Deal was successfully created.' }
format.json { render action: 'show', status: :created, location: @deal }
else
format.html { render action: 'new' }
format.json { render json: @deal.errors, status: :unprocessable_entity }
end
end
end
When trying to create new deal I get error:
ActiveRecord::AssociationTypeMismatch in DealsController#create
Client(#48283704) expected, got String(#16421928)
Extracted source (around line #31):
31 @deal = current_user.deals.build(deal_params) #ok
32 respond_to do |format|
Deal_params is defined as:
private
# Use callbacks to share common setup or constraints between actions.
def set_deal
@deal = Deal.find(params[:id])
end
# Never trust parameters from the scary internet, only allow the white list through.
def deal_params
params.require(:deal).permit(:client, :headline, :value, :description, :user_id)
end
end
Can someone please explain me how to get through this? When I remove "belongs_to: client" in deal model everything works but there is no relationship...
Solution
Licensed under: CC-BY-SA with attribution
Not affiliated with StackOverflow