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Easy Active Record for Rails Developers: Master Active Record and Have a Ton of Fun Doing It! Pdf

Download Easy Active Record for Rails Developers: Master Active Record and Have a Ton of Fun Doing It! Pdf

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Book Description:

In regards to the BookEasy Active Record for Rails Builders is the final phrase info to developing database-pushed web functions using the extremely efficient Active Record ORM. You'll adjust to along with the creation of ArcadeNomad, a satisfying location-based web software for retro arcade fanatics.

What You'll LearnProperly validate, filter and manipulate your software’s model dataIntegrate belongs_to, has_one, has_many, has_many by means of, and habtm model associationsManage model schemas using Active Record’s extremely efficient migrations toolCreate and mix difficult web formsDeftly traverse associations using consists of and joinsMonitor, debug and optimize your queriesIntegrate shopper registration and authentication choices

Desk of Contents

Chapter 1. Introducing Fashions, Schemas and MigrationsIn this chapter you’ll uncover methods to create the fashions used to deal with the equipment’s enterprise logic and current useful interfaces to the database, use migrations to create and evolve your database schema, and begin testing your fashions with RSpec and factory_girl.

Chapter 2. Loading, Validating and Manipulating DataIn this chapter you’ll uncover methods to load an preliminary data set into your software, create and manipulate data, enhance your software fashions using validators, and examine your fashions with RSpec.

Chapter three. Querying the DatabaseIn this chapter you'll research all about Active Record’s array of extremely efficient query choices, along with strategies to execute queries, retrieve a specific report in response to most important key, order, group, and prohibit outcomes, retrieve random data, paginate outcomes, and use scopes. You’ll moreover uncover methods to mix these queries with controllers and views to create itemizing and factor pages.

Chapter 4. Introducing AssociationsThanks to a unimaginable perform typically referred to as associations, defining and traversing desk relations is a trivial exercise. On this chapter I’ll current you the best way to stipulate, deal with, and work along with the belongs_to, has_one, has_many, has_many :by method of, and the has_and_belongs_to_many associations.

Chapter 5. Mastering Internet FormsWhile creating straightforward varieties is simple, points can get troublesome fast when implementing additional formidable choices similar to varieties involving a quantity of fashions. On this chapter I’ll go into factor referring to how one can mix varieties into your functions, overlaying every Rails’ native sort developing choices along with approaches offered by totally different gems.

Chapter 6. Debugging and Optimizing Your ApplicationWhile it’s satisfying to brag about your enterprise’s cool choices, they sometimes come at good expense of your time and brainpower. Quite a bit of the difficulty was attainable spent figuring out points akin to why a query was working sluggish or the rationale a difficult affiliation wasn’t working as desired. On this chapter I'll introduce you to a quantity of tools and strategies which will automate a lot of the debugging and optimization course of.

Chapter 7. Integrating Shopper Accounts with DeviseThere are pretty a few shifting parts associated to integrating even main account choices, along with account registration, examine in, sign out, password restoration interfaces, and entry restriction. Fortuitously the Devise gem enormously reduces the amount of work in another case required to implement account creation, authorization and administration choices, and on this chapter I’ll introduce you to this gem's many implausible choices.

In regards to the Author
W. Jason Gilmore is a software developer, advertising advisor, and bestselling author. He has spent a lot of the earlier 15 years serving to firms of all sizes assemble excellent choices. Present duties embrace a Rails-pushed e-commerce analytics software for a globally acknowledged author, a Linux-powered autonomous environmental monitoring buoy, and a 10,000+ product on-line retailer. Jason is cofounder of the CodeMash conference.




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