Cargando…
Learn Rails 5.2 : Accelerated Web Development with Ruby on Rails /
"Learn to build Rails-based web applications using all the latest features offered in Rails 5.2. Author Stefan Wintermeyer begins by teaching the basics of Ruby 2.5 before proceeding through all aspects of Rails, utilizing clean, succinct examples - rather than a single large application. This...
| Clasificación: | Libro Electrónico |
|---|---|
| Autor principal: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
[California] :
Apress,
[2018]
|
| Temas: | |
| Acceso en línea: | Texto completo (Requiere registro previo con correo institucional) |
Tabla de Contenidos:
- Intro; Table of Contents; About the Author; About the Technical Reviewer; Preface; Introduction; Chapter 1: Ruby Introduction; Ruby 2.5; Basics; Hello World; puts and print; Comments; Help via ri; irb; Ruby Is Object-Oriented; Methods; Classes; Private Methods; Method initialize(); return; Inheritance; Class Methods and Instance Methods; List of All Instance Methods; Basic Classes; Strings; Single and Double Quotations Marks; Built-in Methods for String; Numbers; Integers; Floats; Mixed Class Calculations; Boolean Values and nil; Variables; Naming Conventions; Constants; Scope of Variables.
- Local Variables (aaa or _aaa)Global Variables (aaa); Instance Variables (@aaa); Methods Once Again; Method Chaining; Getters and Setters; Converting from One to the Other: Casting; Method to_s for Your Own Classes; Is + a Method?; Can You Overwrite the Method +?; if Condition; Shorthand; else; elsif; Loops; while and until; Blocks and Iterators; Iterators; Blocks; Method upto; Arrays and Hashes; Arrays; Iterator each; Hashes; Symbols; Iterator each; Range; Chapter 2: First Steps with Rails; Environment (Development); SQLite3 Database; Why Is It All in English?
- Static Content (HTML and Graphics Files)Create a Rails Project; Static Pages; Creating HTML Dynamically with erb; Programming in an erb File; vs. ; Q & A; Layouts; Passing Instance Variables from a Controller to a View; Partials; Passing Variables to a Partial; Further Documentation on Partials; The Rails Console; app; What Is a Generator?; Helper; Debugging; debug; Web Console; Other Debugging Tools; Rails Lingo; Don't Repeat Yourself; Refactoring; Convention Over Configuration; Model View Controller Architecture; Model; View; Controller; Abbreviations.
- Chapter 3: ActiveRecordCreating a Database/Model; The Attributes id, created_at, and updated_at; Getters and Setters; Possible Data Types in ActiveRecord; Decimal; Naming Conventions (Country vs. country vs. countries); Database Configuration; Adding Records; create; Syntax; new; new_record?; first, last, and all; Populating the Database with seeds.rb; It's All Just Ruby Code; Generating seeds.rb from Existing Data; Searching and Finding with Queries; find; where; not; or; SQL Queries with where; Sanitized Queries; Dangerous SQL Queries; Lazy Loading; Automatic Optimization.
- Order and reverse_orderlimit; offset; group; pluck; select; first_or_create and first_or_initialize; Calculations; average; count; maximum; minimum; sum; SQL EXPLAIN; Batches; Editing a Record; Simple Editing; Active Model Dirty; changed?; _changed?; update; Locking; has_many, a 1:n Association; Creating Records; create; build; Accessing Records; Searching for Records; joins method; includes; joins vs. includes; delete and destroy; Options; belongs_to; has_many; Many-to-Many, an n:n Association; Preparation; The Association; The Association Works Transparently; Polymorphic Associations.