September 2016
Intermediate to advanced
488 pages
12h 21m
English
Content preview from Agile Web Development with Rails 5, 1st Edition
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Iteration F5: Broadcasting Updates with Action Cable
Bring up the Depot application in two browser windows or tabs. In the first window, display the catalog. Then, in the second window, update the price of an item. Return to the first window, and add that item to the cart. At this point, the cart shows the updated price, but the catalog shows the original price, as illustrated in the following screenshot.
We discuss this with our customer. She agrees to honor the price at the time the item was placed in the cart, but she wants the catalog being displayed to be up to date. At this point, we’ve reached the limits of what Ajax can do for us. So ...
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