November 2012
Intermediate to advanced
888 pages
54h 46m
Polish
Content preview from Ruby. Receptury
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15.11. Ustawianie i odczytywanie informacji o sesji
Problem
Chcemy powiązać pewne dane z klientem, który korzysta z naszej aplikacji. Dane powinny być zachowywane pomiędzy poszczególnymi żądaniami HTTP.
Rozwiązanie
Można skorzystać z plików cookie (zobacz „15.12. Ustawianie i odczytywanie plików cookie”), ale zazwyczaj prostszym rozwiązaniem jest zapisywanie danych w sesji użytkownika. Każdy odwiedzający witrynę Rails automatycznie otrzymuje plik cookie sesji. Środowisko Rails zapisuje ten plik cookie w haszu na serwerze.
W całej aplikacji Rails: w sterownikach, widokach, metodach pomocniczych i pocztowych można uzyskać dostęp do tego hasza — w tym celu wystarczy wywołać metodę session. Zapisane w haszu obiekty zachowywane są dla wszystkich ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.