Setting foreign keys, yet record.association_name returning nil

[Sadaf Noor]

Please help me to understand why this piece of rspec code is behaving this way. I am setting product_id to my record, and it is asserting true, but yet record.product not returning anything.

product = FactoryGirl.create(:product)

post :create, {:tshirt => FactoryGirl.attributes_for(:tshirt).stringify_keys.merge("product_id"=> product.id.to_s) } #successful creation
expect(Tshirt.last.product_id).to eq(product.id)  # asserts true

puts Tshirt.last.product #prints nothing

expect(Tshirt.last.product.size).to eq(product.size)  # exception!!! it says, product = nil

--

 Md. Sadaf Noor (@sadaf2605)
 www.sadafnoor.com

[Sadaf Noor]

Also posted at stackoverflow: http://stackoverflow.com/questions/32414734/setting-foreign-keys-at-rails-yet-record-association-name-returning-nil

( Please don't downvote )

[Jim Ruther Nill]

On Saturday, September 5, 2015, Sadaf Noor <em...@sadafnoor.com> wrote:

Also posted at stackoverflow: http://stackoverflow.com/questions/32414734/setting-foreign-keys-at-rails-yet-record-association-name-returning-nil

( Please don't downvote )

2015-09-05 21:22 GMT+06:00 Sadaf Noor <em...@sadafnoor.com>:

Please help me to understand why this piece of rspec code is behaving this way. I am setting product_id to my record, and it is asserting true, but yet record.product not returning anything.

product = FactoryGirl.create(:product)

post :create, {:tshirt => FactoryGirl.attributes_for(:tshirt).stringify_keys.merge("product_id"=> product.id.to_s) } #successful creation
expect(Tshirt.last.product_id).to eq(product.id)  # asserts true

puts Tshirt.last.product #prints nothing

Check how product is defined in the tshirt model. Also check the value of product.id, it may be nil for all we know and tshirt.product_id is also nil so they're equal.

 

expect(Tshirt.last.product.size).to eq(product.size)  # exception!!! it says, product = nil

--

 Md. Sadaf Noor (@sadaf2605)
 www.sadafnoor.com

--

 Md. Sadaf Noor (@sadaf2605)
 www.sadafnoor.com

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[Sadaf Noor]

good point but nope, they are not nil

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[Colin Law]

On 6 September 2015 at 07:54, Sadaf Noor <em...@sadafnoor.com> wrote:

good point but nope, they are not nil

What do the following show?

puts TShirt.last.inspect

puts product.inspect

puts Tshirt.last.product.inspect

and copy/paste the start of t_shirt.rb showing the associations

Colin