September 2017
Beginner to intermediate
396 pages
9h 46m
English
Content preview from Haskell Cookbook
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How it works...
In this recipe, we have touched upon many aspects of defining, storing, and querying the model. Let's us look at each aspect one by one.
The definition of the model starts with the following statement:
share [mkPersist sqlSettings, mkMigrate "migrateAll"]
This definition shows how we would like to persist the model. sqlSettings denotes that we would like to use a SQL backend for storing the model. mkMigrate takes a string argument. This should be name of the function (in this case, migrateAll) that represents the creation of all the schemata defined in the model.
The model itself is defined within [persistLowerCase| ...]. It persists the names of tables and fields using lowercase letters. The following definition of Stock ...
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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.