pass parameter by link to ruby on rails

Question

I have this line of code    lt    link to  Add to cart    controller   gt   car    action   gt   add to cart    car   gt  car   gt    when im in the add to cart method   how can i call the  car please    car   Car new params  car     That doesn t work because it says that I m trying to stringify it   I don t understand what s wrong  because I used this to create new users and it worked fine   By the way  car is my car object

User · Answer

The above did not work for me but this did   lt    link to  text to show in url   action controller path  gender   gt   male    param2  gt   something else     gt

User · Answer

You probably don t want to pass the car object as a parameter  try just passing car id   What do you get when you inspect params  after clicking  Add to cart

User · Answer

Maybe try this    lt    link to  Add to cart                 controller   gt   car                 action   gt   add to cart                 car   gt  car attributes   gt    But I d really like to see where the car object is getting setup for this page  i e   the rest of the view

User · Answer

Try    lt    link to  Add to cart     controller   gt   car    action   gt   add to cart    car   gt  car id    gt    and then in your controller   car   Car find params  car     which  will find in your  cars  table   as with rails pluralization  in your DB a car with id    to car id  hope it helps  happy coding  more than a year later  but if you see it or anyone does  i could use the points  D

[ruby-on-rails] pass parameter by link_to ruby on rails

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