Rails 5 Record Active Record Invalid Error
I have two Rails models, Invoice and Invoice_details . Element Invoice_details refers to to the invoice , and the counter has a lot Invoice_details. I cannot save Invoice_details via Invoice using accepts_nested_attributes_for in Invoice .
I am getting the following error:
(0.2ms) BEGIN
(0.2ms) ROLLBACK
Completed 422 Unprocessable Entity in 25ms (ActiveRecord: 4.0ms)
ActiveRecord::RecordInvalid (Validation failed: Invoice details invoice must exist):
app/controllers/api/v1/invoices_controller.rb:17:in `create'
Below is the code snippet for invoice.rb
:
class Invoice < ApplicationRecord
has_many :invoice_details
accepts_nested_attributes_for :invoice_details
end
Snippet of code for invoice_details.rb
:
class InvoiceDetail < ApplicationRecord
belongs_to :invoice
end
Code Controller
:
class Api::V1::InvoicesController < ApplicationController
respond_to :json
def index
comp_id = params[:comp_id]
if comp_id
invoices = Invoice.where(:company_id => comp_id)
render json: invoices, status: 201
else
render json: { errors: "Company ID is NULL" }, status: 422
end
end
def create
Rails.logger.debug invoice_params.inspect
invoice = Invoice.new(invoice_params)
if invoice.save!
render json: invoice, status: 201
else
render json: { errors: invoice.errors }, status: 422
end
end
def invoice_params
params.require(:invoice).permit(:total_amount,:balance_amount, :customer_id, invoice_details_attributes:[:product_id])
end
end
Raw JSON data is passed to the controller:
{
"invoice":{
"total_amount":"100",
"balance_amount":"0",
"customer_id":"1",
"invoice_details_attributes":[{
"product_id":"4"
}]
}
}
invoice_details schema
|id | invoice_id | product_id | created_at | updated_at|
invoice scheme
|id| total_amount |balance_amount | generation_date | created_at | updated_at | customers_id|
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I still don't know the reason why the above thing didn't work, however, when I was explicitly declaring a bidirectional relationship between two models using inverse_of
.
class Invoice < ApplicationRecord
has_many :invoiceDetails, inverse_of: :invoice
accepts_nested_attributes_for :invoiceDetails
end
It seemed like Rails didn't set the invoice attribute on invoice_details before trying to save it by calling validationstrong> errors. This is a bit surprising, since the other has_many relationships must have the same persistence mechanics and worked just fine.
After a bit of searching I found several posts about this behavior in the old version of Rails, I don't know if this exists in the newer version. Further you can see in these links:
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ActiveRecord :: RecordInvalid (validation failed: invoice information must exist):
The error is due to the fact that you do not allow invoice_id
when saving invoice_detail
forinvoice
In Rails 5, the existence of a linked object will be checked by default. You can bypass this check by settingoptional :true
From Guides
If you set the option: optional to true, then the existence of the associated object will not be checked. By default, this option is set to false.
Decision:
Allow invoice_id
ininvoice_details_attributes
invoice_params
def invoice_params
params.require(:invoice).permit(:total_amount,:balance_amount, :customer_id, invoice_details_attributes: [:product_id, :invoice_id])
end
OR
If you don't want this, install optional :true
class InvoiceDetail < ApplicationRecord
belongs_to :invoice, optional :true
end
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