Create action in controller is omitting reference field - ruby-on-rails

Question

I have a problem with my rails application when i create a customer for an environment, the action itself if omitting the parameter environment_id in the insert statment.
This is my customer.rb model:
class Customer < ActiveRecord::Base
belongs_to :environment, inverse_of: :customers
has_many :all_services, class_name: 'Service'
has_many :services, inverse_of: :customer
has_paper_trail ignore: %i[created_at updated_at]
end
This is my environment.rb model:
class Environment < ActiveRecord::Base
has_many :all_customers, class_name: 'Customer', dependent: :destroy
has_many :customers, inverse_of: :environment
has_many :all_services, class_name: 'Service', dependent: :destroy
has_many :services, inverse_of: :environment
has_many :all_versions, class_name: 'Version', dependent: :destroy
has_many :versions, inverse_of: :environment
has_many :all_role_permissions, class_name: 'RolePermission', dependent: :destroy
has_many :role_permissions, inverse_of: :environment
has_paper_trail ignore: %i[created_at updated_at]
end
This is the customer_controller.rb create action:
def create
if customer_params.permitted?
render json: Customer.create!(customer_params), status: :ok
else
render json: { message: Api::V1::INVALID_PARAMETERS }, status: :bad_request
end
end
def customer_params
params.require(:customer).permit(:environment_id, :full_name, :document_type, :document_value, :customer_type)
end
And this is the server log:
Started POST "/api/v1/customers" for 127.0.0.1 at 2021-06-02 18:18:44 +0100
Processing by Api::V1::CustomersController#create as HTML
Parameters: {"full_name"=>"cvbcv", "document_type"=>"bcvbc", "document_value"=>"vbcvbcv", "customer_type"=>"bcvbcvb", "environment_id"=>1, "customer"=>{"full_name"=>"cvbcv", "document_type"=>"bcvbc", "document_value"=>"vbcvbcv", "customer_type"=>"bcvbcvb", "environment_id"=>1}}
User Load (0.7ms) SELECT "users".* FROM "users" WHERE "users"."uid" = $1 LIMIT $2 [["uid", "test1#test.cl"], ["LIMIT", 1]]
(0.5ms) BEGIN
↳ app/services/api/customers.rb:20:in `create_customer'
Environment Load (0.5ms) SELECT "environments".* FROM "environments" WHERE "environments"."id" = $1 LIMIT $2 [["id", 1], ["LIMIT", 1]]
↳ app/services/api/customers.rb:20:in `create_customer'
Customer Create (1.4ms) INSERT INTO "customers" ("full_name", "document_type", "document_value", "customer_type", "created_at", "updated_at") VALUES ($1, $2, $3, $4, $5, $6) RETURNING "id" [["full_name", "cvbcv"], ["document_type", "bcvbc"], ["document_value", "vbcvbcv"], ["customer_type", "bcvbcvb"], ["created_at", "2021-06-02 17:18:44.378509"], ["updated_at", "2021-06-02 17:18:44.378509"]]
↳ app/services/api/customers.rb:20:in `create_customer'
(1.2ms) ROLLBACK
↳ app/services/api/customers.rb:20:in `create_customer'
Completed 500 Internal Server Error in 22ms (ActiveRecord: 4.3ms | Allocations: 6384)
ActiveRecord::NotNullViolation (PG::NotNullViolation: ERROR: null value in column "environment_id" violates not-null constraint
DETAIL: Failing row contains (28, cvbcv, bcvbc, vbcvbcv, bcvbcvb, null, 2021-06-02 17:18:44.378509, 2021-06-02 17:18:44.378509).
):
I tried everything i can possible know, i triple checked the migrations and schema.
I also checked active record gem version from previous projects and everything is ok.
One thing that might be relevant, this that the project have a front-end in Angular.

Answer 1

Rails validates for Environment presence in the database because Customer belongs_to to it.
Query below in your log is trying to load Environment with ID=1:
Environment Load (0.5ms) SELECT "environments".* FROM "environments" WHERE "environments"."id" = $1 LIMIT $2 [["id", 1], ["LIMIT", 1]]
After this Rails try to INSERT new Customer without Environment reference because it seems that Environment with ID=1 doesn't exist in the database.

Answer 2

multiple ways of solving it.
problem: the environment_id is nil and already as not nil defined in the postgres DB.
you can add a required: true to the association, which rails then checks for existence. in your case a validation error would throw.
you can add a validates :enviroment_id, presence: true which would do the same
you merge the id into the params
example to always merge the environment_id into the params
def customer_params
params.require(:customer).permit(:full_name, :document_type, :document_value, :customer_type).merge(environment_id: GET_ME_THE_ENV_ID)
end