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POForm to select id before passing it to 'new' form in Rails
 

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    <p>I have some two nested resources, so that a Product can have many Bookings. On one page in a different controller I want to create a new booking and since it's a "general" booking I want a select menu to appear in a modal window where the user is able to pick one of the existing products and then go to the booking page.</p> <p>How can I do this?</p> <p>I have no problem setting up the modal and the "New booking" page is already there. What I need is a form that generates a list of existing products, picks the selected product id and then gets /products/:product_id/bookings/new .</p> <p>To clearify;</p> <p>I have the two resources set in routes:</p> <pre><code>resources :products do resources :bookings end </code></pre> <p>A product has many bookings, and thus the path to create a new booking will be /products/:product_id/bookings/new.</p> <p>I have another controller with a view where I want a button for creating a new booking. Problem is I don't know for what product the user wants to create a booking when the "New booking" button is clicked. To solve that my plan was to show a modal window containing a select with all products, that the user should be able to select a product and then be redirected to /products/:product_id/bookings/new with :product_id as selected product.</p> <p>Right now I have a solution that works but it's not very nice, I have created the form with an action to /products/:product_id/bookings/new and with method = get. Then I catch the submit with JavaScript, change the action and then submits again:</p> <pre><code>$("#new_booking_form").submit(function() { var product_id = $(this).find('select').val(); var form_action = $(this).attr("action"); var new_form_action = form_action.replace(/product_id/, product_id); $(this).attr("action", new_form_action); $(this).submit(); }); </code></pre> <p>This solution works but is very ugly! Any suggestions?</p>
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