CODEWITHSUNDEEP
ruby-on-rails
Gediminas Šukys
Gediminas Šukys

Reputation: 7391

Convert comma to dot for numbers before saving

How to fix price field before Rails does it? I'm getting this error:

undefined methodbefore_filter' for Class:0x007fdddc1549d0>`

Code:

class Item < ActiveRecord::Base
  before_filter :update_fields

  private

    def update_fields
        self.price = self.price.to_s.gsub(',', '.').to_f
        # getting this results if called in "before_save"
        # 5.77 => 5.77
        # 5,15 => 5.00
    end
end

Upvotes: 0

Views: 827

Answers (2)

Igor Escobar
Igor Escobar

Reputation: 1087

This is how I solved the problem directly inside the model, without needing the before_filter callback inside the controller:

class Item < ActiveRecord::Base
  before_validation :update_fields

  private
  def update_fields
    [:field_1, :field_2, :field_3].each {|k|
      self[k.to_sym] = self.attributes_before_type_cast[k.to_s].gsub(',', '.').to_f
    }
  end
end

Hope it helps!

Upvotes: 0

Gediminas Šukys
Gediminas Šukys

Reputation: 7391

So, I have solved this moving code to the controller:

# encoding: utf-8
class ItemsController < ApplicationController
  before_action :fix_fields

  private
  def fix_fields
      if params[:item].present?
        params[:item][:price] = params[:item][:price].to_s.gsub(',', '.').to_f
      end
  end

Now if user enters: 5,75 saves 5.75

Upvotes: 2

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