console

  ActiveRecord::RecordInvalid in PaymentsController#create

Validation failed: Amount is not a number
Rails.root: /Users/telagraphic/Documents/programming/rails_projects/life-ulator

Application Trace | Framework Trace | Full Trace
app/models/payment.rb:9:in `save_and_update'
app/controllers/payments_controller.rb:8:in `create'
Request

Parameters:

{"utf8"=>"✓",
 "authenticity_token"=>"4pxlp8J/lb21CW2z7W7wuFVfnClOfGdtbARXstoUisE=",
 "payment"=>{"amount"=>"asdf"},
 "commit"=>"+payment",
 "debt_id"=>"6"}

payment.rb

class Payment < ActiveRecord::Base
  attr_accessible :amount
  
  validates :amount, presence: true, :numericality => true
  
  belongs_to :debt
  
  def save_and_update(debt)
    self.transaction do
      self.save!
      debt.update_attributes!(amount: debt.amount - self.amount)
    end
  end

end

payments_controller.rb

  def create
    @debt = Debt.find params[:debt_id]
    @payment = @debt.payments.build params[:payment]
    @payment.user_id = current_user.id
    
    if @payment.save_and_update(@debt)
      redirect_to @debt
    else
      render @debt
    end
  end

payments_form.html.erb

<%= form_for [@debt, @payment] do |f| %>
  <%= render 'shared/error_messages', object: f.object %>
  <%= f.label :amount %><br>
  <%= f.text_field :amount %><br>
  <%= f.submit '+payment' %>
<% end %>