Hobo: Step 4 – adding a cover image

As we've now get a running web application to manage our library, I propose you to add an image field management to our Book model.To manage this part, we are going to need 3 things:an imaging tool like mini_magick or image_magick, the paperclip p...

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Hobo: step2 and 3, add categories and some relation

Ok, we have just created the first step of our library. Now we have hundreds of books, maybe we can dispatch all these books in some categories ? Ok, l'est add categories to our web app "My Library" script/generate hobo_model_resource category nam...

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