Category.has_many :products
Let’s say a product must belong to a category. I know it is recommended
to do the following:
class Product
validates_presence_of :category_id
end
But, as we all know, this is a pain for new records, meaning what if the
associated category is a new record?
I’ve been meaning to ask this, but what’s wrong with doing the
following:
class Product
validates_presence_of :category
end
I never understood why that was so wrong. So I wanted to ask and see if
I am missing something. What do you think? Thanks for your help!
But, as we all know, this is a pain for new records, meaning what if the
associated category is a new record?
I’ve been meaning to ask this, but what’s wrong with doing the
following:
class Product
validates_presence_of :category
end
In this case you may need validates_associated or write your own
validation by def validate.
Ben J. wrote:
associated category is a new record?
I’ve been meaning to ask this, but what’s wrong with doing the
following:
class Product
validates_presence_of :category
end
I never understood why that was so wrong. So I wanted to ask and see if
I am missing something. What do you think? Thanks for your help!
It isn’t wrong, it’s the right way to do it. You just have to
assign a category object when building a new Product.
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