rails fields validate if

Question

I have a Model Product with fields:

name price product_type_id:integer size:string page_quantity:integer.

How can make this validation work for Product model create action?

- if product_type.id == "1"
   validates :size, presence: true
   validates :page_quantity, presence:false
- else
   validates :size, presence: false
   validates :page_quantity, presence:true
end

Kkulikovskis · Accepted Answer · 2016-06-13 06:12:39Z

2

   validates :size, presence: true, if: Proc.new { |p| p.product_type_id == "1" } 
   validates :page_quantity, presence:false, if: Proc.new { |p| p.product_type_id == "1" }
   validates :size, presence: false, unless: Proc.new { |p| p.product_type_id == "1" }
   validates :page_quantity, presence:true, unless: Proc.new { |p| p.product_type_id == "1" }
end

edited Jun 13, 2016 at 6:12

answered Jun 12, 2016 at 17:50

Kkulikovskis

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2 Comments

makerbreaker Over a year ago

I want the validation to be not to Product.id but if product_type_id == 1 in Product.create action

Kkulikovskis Over a year ago

@makerbreaker adjusted, but I think that the main idea should be pretty clear.

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