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    Ruby On Rails Notes for Professionals book

    Amazing collection of free programming books

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    Free
    Amazing collection of free programming books

    The Notes for Professionals book is compiled from Stack Overflow Documentation, the content is written by the beautiful people at Stack Overflow. Text content is released under Creative Commons BY-SA. See credits at the end of this book whom contributed to the various chapters. Images may be copyright of their respective owners unless otherwise specified

    Book created for educational purposes and is not affiliated with group(s), company(s) nor Stack Overflow. All trademarks belong to their respective company owners

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    Content

    • 1-1
      Content list
    • 1-2
      About
    • 1-3
      Chapter 1: Getting started with Ruby on Rails
    • 1-4
      Section 1.1: Creating a Ruby on Rails Application
    • 1-5
      Section 1.2: Create a new Rails app with your choice of database and including the RSpec Testing Tool
    • 1-6
      Section 1.3: Generating A Controller
    • 1-7
      Section 1.4: Installing Rails
    • 1-8
      Section 1.5: Create a new Rails app with a non-standard database adapter
    • 1-9
      Section 1.6: Creating Rails APIs in JSON
    • 1-10
      Section 1.7: Generate a Resource with Scaolds
    • 1-11
      Chapter 2: Routing
    • 1-12
      Section 2.1: Resource Routing (Basic)
    • 1-13
      Section 2.2: Constraints
    • 1-14
      Section 2.3: Scoping routes
    • 1-15
      Section 2.4: Concerns
    • 1-16
      Section 2.5: Root route
    • 1-17
      Section 2.6: Split routes into multiple files
    • 1-18
      Section 2.7: Additional RESTful actions
    • 1-19
      Section 2.8: Member and Collection Routes
    • 1-20
      Section 2.9: Mount another application
    • 1-21
      Section 2.10: Nested Routes
    • 1-22
      Section 2.11: Redirection
    • 1-23
      Section 2.12: Redirects and Wildcard Routes
    • 1-24
      Section 2.13: Scope available locales
    • 1-25
      Section 2.14: URL params with a period
    • 1-26
      Chapter 3: ActiveRecord
    • 1-27
      Section 3.1: Creating a Model via generator
    • 1-28
      Section 3.2: Introduction to Callbacks
    • 1-29
      Section 3.3: Creating a Model manually
    • 1-30
      Section 3.4: Manually Testing Your Models
    • 1-31
      Section 3.5: Creating A Migration
    • 1-32
      Section 3.6: Create a Join Table using Migrations
    • 1-33
      Section 3.7: Using a model instance to update a row
    • 1-34
      Chapter 4: Views
    • 1-35
      Section 4.1: Structure
    • 1-36
      Section 4.2: Partials
    • 1-37
      Section 4.3: AssetTagHelper
    • 1-38
      Section 4.4: Replace HTML code in Views
    • 1-39
      Section 4.5: HAML - an alternative way to use in your views
    • 1-40
      Chapter 5: ActiveRecord Migrations
    • 1-41
      Section 5.1: Adding multiple columns to a table
    • 1-42
      Section 5.2: Add a reference column to a table
    • 1-43
      Section 5.3: Rollback migrations
    • 1-44
      Section 5.4: Add a new column with an index
    • 1-45
      Section 5.5: Run specific migration
    • 1-46
      Section 5.6: Redo migrations
    • 1-47
      Section 5.7: Add a new column to a table
    • 1-48
      Section 5.8: Remove an existing column from a table
    • 1-49
      Section 5.9: Add column with default value
    • 1-50
      Section 5.10: Running migrations in dierent environments
    • 1-51
      Section 5.11: Create a new table
    • 1-52
      Section 5.12: Running migrations
    • 1-53
      Section 5.13: Change an existing column’s type
    • 1-54
      Section 5.14: Create a hstore column
    • 1-55
      Section 5.15: Create a join table
    • 1-56
      Section 5.16: Add a self reference
    • 1-57
      Section 5.17: Create an array column
    • 1-58
      Section 5.18: Add an unique column to a table
    • 1-59
      Section 5.19: Checking migration status
    • 1-60
      Section 5.20: Changing Tables
    • 1-61
      Section 5.21: Adding a NOT NULL constraint to existing data
    • 1-62
      Section 5.22: Forbid null values
    • 1-63
      Chapter 6: Rails Best Practices
    • 1-64
      Section 6.1: Fat Model, Skinny Controller
    • 1-65
      Section 6.2: Domain Objects (No More Fat Models)
    • 1-66
      Section 6.3: Beware of default_scope
    • 1-67
      Section 6.4: Convention Over Configuration
    • 1-68
      Section 6.5: Don't Repeat Yourself (DRY)
    • 1-69
      Section 6.6: You Ain’t Gonna Need it (YAGNI)
    • 1-70
      Chapter 7: Naming Conventions
    • 1-71
      Section 7.1: Controllers
    • 1-72
      Section 7.2: Models
    • 1-73
      Section 7.3: Filenames and autoloading
    • 1-74
      Section 7.4: Views and Layouts
    • 1-75
      Section 7.5: Models class from Controller name
    • 1-76
      Chapter 8: ActionCable
    • 1-77
      Section 8.1: User Authentication
    • 1-78
      Section 8.2: [Basic] Server Side
    • 1-79
      Section 8.3: [Basic] Client Side (Coeescript)
    • 1-80
      Chapter 9: ActiveModel
    • 1-81
      Section 9.1: Using ActiveModel::Validations
    • 1-82
      Chapter 10: User Authentication in Rails
    • 1-83
      Section 10.1: Authentication using Devise
    • 1-84
      Section 10.2: Devise Controller Filters & Helpers
    • 1-85
      Section 10.3: Omniauth
    • 1-86
      Section 10.4: has_secure_password
    • 1-87
      Section 10.5: has_secure_token
    • 1-88
      Chapter 11: ActiveRecord Associations
    • 1-89
      Section 11.1: Polymorphic association
    • 1-90
      Section 11.2: Self-Referential Association
    • 1-91
      Section 11.3: belongs_to
    • 1-92
      Section 11.4: has_one
    • 1-93
      Section 11.5: has_many
    • 1-94
      Section 11.6: The has_many :through association
    • 1-95
      Section 11.7: The has_one :through association
    • 1-96
      Section 11.8: The has_and_belongs_to_many association
    • 1-97
      Chapter 12: ActiveRecord Validations
    • 1-98
      Section 12.1: Validating length of an attribute
    • 1-99
      Section 12.2: Validates format of an attribute
    • 1-100
      Section 12.3: Validating presence of an attribute
    • 1-101
      Section 12.4: Custom validations
    • 1-102
      Section 12.5: Validates inclusion of an attribute
    • 1-103
      Section 12.6: Grouping validation
    • 1-104
      Section 12.7: Validating numericality of an attribute
    • 1-105
      Section 12.8: Validate uniqueness of an attribute
    • 1-106
      Section 12.9: Skipping Validations
    • 1-107
      Section 12.10: Confirmation of attribute
    • 1-108
      Section 12.11: Using :on option
    • 1-109
      Section 12.12: Conditional validation
    • 1-110
      Chapter 13: ActiveRecord Query Interface
    • 1-111
      Section 13.1: .where
    • 1-112
      Section 13.2: .where with an array
    • 1-113
      Section 13.3: Scopes
    • 1-114
      Section 13.4: Get first and last record
    • 1-115
      Section 13.5: Ordering
    • 1-116
      Section 13.6: where.not
    • 1-117
      Section 13.7: Includes
    • 1-118
      Section 13.8: Joins
    • 1-119
      Section 13.9: Limit and Oset
    • 1-120
      Section 13.10: .find_by
    • 1-121
      Section 13.11: .delete_all
    • 1-122
      Section 13.12: ActiveRecord case insensitive search
    • 1-123
      Section 13.13: .group and .count
    • 1-124
      Section 13.14: .distinct (or .uniq)
    • 1-125
      Chapter 14: ActionMailer
    • 1-126
      Section 14.1: Basic Mailer
    • 1-127
      Section 14.2: Generating a new mailer
    • 1-128
      Section 14.3: ActionMailer Interceptor
    • 1-129
      Section 14.4: Adding Attachments
    • 1-130
      Section 14.5: ActionMailer Callbacks
    • 1-131
      Section 14.6: Generate a Scheduled Newsletter
    • 1-132
      Chapter 15: Rails generate commands
    • 1-133
      Section 15.1: Rails Generate Controller
    • 1-134
      Section 15.2: Rails Generate Migration
    • 1-135
      Section 15.3: Rails Generate Scaold
    • 1-136
      Section 15.4: Rails Generate Model
    • 1-137
      Chapter 16: Configuration
    • 1-138
      Section 16.1: Custom configuration
    • 1-139
      Chapter 17: I18n - Internationalization
    • 1-140
      Section 17.1: I18n with arguments
    • 1-141
      Section 17.2: Translating ActiveRecord model attributes
    • 1-142
      Section 17.3: Get locale from HTTP request
    • 1-143
      Section 17.4: Pluralization
    • 1-144
      Section 17.5: Set locale through requests
    • 1-145
      Section 17.6: Use I18n with HTML Tags and Symbols
    • 1-146
      Section 17.7: Use I18n in views
    • 1-147
      Chapter 18: Using GoogleMaps with Rails
    • 1-148
      Section 18.1: Add the google maps javascript tag to the layout header
    • 1-149
      Section 18.2: Geocode the model
    • 1-150
      Section 18.3: Show addresses on a google map in the profile view
    • 1-151
      Section 18.4: Set the markers on the map with javascript
    • 1-152
      Section 18.5: Initialize the map using a coee script class
    • 1-153
      Section 18.6: Initialize the map markers using a coee script class
    • 1-154
      Section 18.7: Auto-zoom a map using a coee script class
    • 1-155
      Section 18.8: Exposing the model properties as json
    • 1-156
      Chapter 19: File Uploads
    • 1-157
      Section 19.1: Single file upload using Carrierwave
    • 1-158
      Section 19.2: Nested model - multiple uploads
    • 1-159
      Chapter 20: Caching
    • 1-160
      Section 20.1: Russian Doll Caching
    • 1-161
      Section 20.2: SQL Caching
    • 1-162
      Section 20.3: Action caching
    • 1-163
      Section 20.4: Fragment caching
    • 1-164
      Section 20.5: Page caching
    • 1-165
      Section 20.6: HTTP caching
    • 1-166
      Chapter 21: ActionController
    • 1-167
      Section 21.1: Basic REST Controller
    • 1-168
      Section 21.2: Filters
    • 1-169
      Section 21.3: Generating a controller
    • 1-170
      Section 21.4: Rescuing ActiveRecord::RecordNotFound with redirect_to
    • 1-171
      Section 21.5: Display error pages for exceptions
    • 1-172
      Section 21.6: Output JSON instead of HTML
    • 1-173
      Section 21.7: Controllers (Basic)
    • 1-174
      Section 21.8: Parameters
    • 1-175
      Section 21.9: Filtering parameters (Basic)
    • 1-176
      Section 21.10: Redirecting
    • 1-177
      Section 21.11: Using Views
    • 1-178
      Chapter 22: Configuration
    • 1-179
      Section 22.1: Rails General Configuration
    • 1-180
      Section 22.2: Configuring assets
    • 1-181
      Section 22.3: Configuring generators
    • 1-182
      Section 22.4: Environments in Rails
    • 1-183
      Section 22.5: Database Configuration
    • 1-184
      Chapter 23: Safe Constantize
    • 1-185
      Section 23.1: Successful safe_constantize
    • 1-186
      Section 23.2: Unsuccessful safe_constantize
    • 1-187
      Chapter 24: Rails 5
    • 1-188
      Section 24.1: How to install Ruby on Rails 5 on RVM
    • 1-189
      Section 24.2: Creating a Ruby on Rails 5 API
    • 1-190
      Chapter 25: Authorization with CanCan
    • 1-191
      Section 25.1: Getting started with CanCan
    • 1-192
      Section 25.2: Handling large number of abilities
    • 1-193
      Section 25.3: Defining abilities
    • 1-194
      Section 25.4: Quickly test an ability
    • 1-195
      Chapter 26: Mongoid
    • 1-196
      Section 26.1: Fields
    • 1-197
      Section 26.2: Installation
    • 1-198
      Section 26.3: Creating a Model
    • 1-199
      Section 26.4: Classic Associations
    • 1-200
      Section 26.5: Embedded Associations
    • 1-201
      Section 26.6: Database Calls
    • 1-202
      Chapter 27: Gems
    • 1-203
      Section 27.1: Gemfiles
    • 1-204
      Section 27.2: What is a gem?
    • 1-205
      Section 27.3: Bundler
    • 1-206
      Section 27.4: Gemsets
    • 1-207
      Chapter 28: Change default timezone
    • 1-208
      Section 28.1: Change Rails timezone AND have Active Record store times in this timezone
    • 1-209
      Section 28.2: Change Rails timezone, but continue to have Active Record save in the database in UTC
    • 1-210
      Chapter 29: Asset Pipeline
    • 1-211
      Section 29.1: Manifest Files and Directives
    • 1-212
      Section 29.2: Rake tasks
    • 1-213
      Section 29.3: Basic Usage
    • 1-214
      Chapter 30: Upgrading Rails
    • 1-215
      Section 30.1: Upgrading from Rails 4.2 to Rails 5.0
    • 1-216
      Chapter 31: ActiveRecord Locking
    • 1-217
      Section 31.1: Optimistic Locking
    • 1-218
      Section 31.2: Pessimistic Locking
    • 1-219
      Chapter 32: Debugging
    • 1-220
      Section 32.1: Debugging Rails Application
    • 1-221
      Section 32.2: Debugging Ruby on Rails Quickly + Beginner advice
    • 1-222
      Section 32.3: Debugging ruby-on-rails application with pry
    • 1-223
      Section 32.4: Debugging in your IDE
    • 1-224
      Chapter 33: Configure Angular with Rails
    • 1-225
      Section 33.1: Angular with Rails 101
    • 1-226
      Chapter 34: Rails logger
    • 1-227
      Section 34.1: Rails.logger
    • 1-228
      Chapter 35: Prawn PDF
    • 1-229
      Section 35.1: Advanced Example
    • 1-230
      Section 35.2: Basic Example
    • 1-231
      Chapter 36: Rails API
    • 1-232
      Section 36.1: Creating an API-only application
    • 1-233
      Chapter 37: Deploying a Rails app on Heroku
    • 1-234
      Section 37.1: Deploying your application
    • 1-235
      Section 37.2: Managing Production and staging environments for a Heroku
    • 1-236
      Chapter 38: ActiveSupport
    • 1-237
      Section 38.1: Core Extensions: String Access
    • 1-238
      Section 38.2: Core Extensions: String to Date/Time Conversion
    • 1-239
      Section 38.3: Core Extensions: String Exclusion
    • 1-240
      Section 38.4: Core Extensions: String Filters
    • 1-241
      Section 38.5: Core Extensions: String Inflection
    • 1-242
      Chapter 39: Form Helpers
    • 1-243
      Section 39.1: Creating a search form
    • 1-244
      Section 39.2: Dropdown
    • 1-245
      Section 39.3: Helpers for form elements
    • 1-246
      Chapter 40: ActiveRecord Transactions
    • 1-247
      Section 40.1: Basic example
    • 1-248
      Section 40.2: Dierent ActiveRecord classes in a single transaction
    • 1-249
      Section 40.3: Multiple database connections
    • 1-250
      Section 40.4: save and destroy are automatically wrapped in a transaction
    • 1-251
      Section 40.5: Callbacks
    • 1-252
      Section 40.6: Rolling back a transaction
    • 1-253
      Chapter 41: RSpec and Ruby on Rails
    • 1-254
      Section 41.1: Installing RSpec
    • 1-255
      Chapter 42: Decorator pattern
    • 1-256
      Section 42.1: Decorating a Model using Draper
    • 1-257
      Section 42.2: Decorating a Model using SimpleDelegator
    • 1-258
      Chapter 43: Elasticsearch
    • 1-259
      Section 43.1: Searchkick
    • 1-260
      Section 43.2: Installation and testing
    • 1-261
      Section 43.3: Setting up tools for development
    • 1-262
      Section 43.4: Introduction
    • 1-263
      Chapter 44: React with Rails using react-rails gem
    • 1-264
      Section 44.1: React installation for Rails using rails_react gem
    • 1-265
      Section 44.2: Using react_rails within your application
    • 1-266
      Section 44.3: Rendering & mounting
    • 1-267
      Chapter 45: Rails Cookbook - Advanced rails recipes/learnings and coding techniques
    • 1-268
      Section 45.1: Playing with Tables using rails console
    • 1-269
      Section 45.2: Rails methods - returning boolean values
    • 1-270
      Section 45.3: Handling the error - undefined method `where' for #<Array:0x000000071923f8>
    • 1-271
      Chapter 46: Multipurpose ActiveRecord columns
    • 1-272
      Section 46.1: Saving an object
    • 1-273
      Section 46.2: How To
    • 1-274
      Chapter 47: Class Organization
    • 1-275
      Section 47.1: Service Class
    • 1-276
      Section 47.2: Model Class
    • 1-277
      Chapter 48: Shallow Routing
    • 1-278
      Section 48.1: Use of shallow
    • 1-279
      Chapter 49: Model states: AASM
    • 1-280
      Section 49.1: Basic state with AASM
    • 1-281
      Chapter 50: Rails 5 API Authetication
    • 1-282
      Section 50.1: Authentication with Rails authenticate_with_http_token
    • 1-283
      Chapter 51: Testing Rails Applications
    • 1-284
      Section 51.1: Unit Test
    • 1-285
      Section 51.2: Request Test
    • 1-286
      Chapter 52: Active Jobs
    • 1-287
      Section 52.1: Introduction
    • 1-288
      Section 52.2: Sample Job
    • 1-289
      Section 52.3: Creating an Active Job via the generator
    • 1-290
      Chapter 53: Rails frameworks over the years
    • 1-291
      Section 53.1: How to find what frameworks are available in the current version of Rails?
    • 1-292
      Section 53.2: Rails versions in Rails 1.x
    • 1-293
      Section 53.3: Rails frameworks in Rails 2.x
    • 1-294
      Section 53.4: Rails frameworks in Rails 3.x
    • 1-295
      Chapter 54: Nested form in Ruby on Rails
    • 1-296
      Section 54.1: How to setup a nested form in Ruby on Rails
    • 1-297
      Chapter 55: Factory Girl
    • 1-298
      Section 55.1: Defining Factories
    • 1-299
      Chapter 56: Import whole CSV files from specific folder
    • 1-300
      Section 56.1: Uploads CSV from console command
    • 1-301
      Chapter 57: Tools for Ruby on Rails code optimization and cleanup
    • 1-302
      Section 57.1: If you want to keep your code maintainable, secure and optimized, look at some gems for code optimization and cleanup :
    • 1-303
      Chapter 58: ActiveJob
    • 1-304
      Section 58.1: Create the Job
    • 1-305
      Section 58.2: Enqueue the Job
    • 1-306
      Chapter 59: Active Model Serializers
    • 1-307
      Section 59.1: Using a serializer
    • 1-308
      Chapter 60: Rails Engine - Modular Rails
    • 1-309
      Section 60.1: Create a modular app
    • 1-310
      Chapter 61: Single Table Inheritance
    • 1-311
      Section 61.1: Basic example
    • 1-312
      Section 61.2: Custom inheritance column
    • 1-313
      Section 61.3: Rails model with type column and without STI
    • 1-314
      Chapter 62: ActiveRecord Transactions
    • 1-315
      Section 62.1: Getting Started with Active Record Transactions
    • 1-316
      Chapter 63: Turbolinks
    • 1-317
      Section 63.1: Binding to turbolink's concept of a page load
    • 1-318
      Section 63.2: Disable turbolinks on specific links
    • 1-319
      Section 63.3: Understanding Application Visits
    • 1-320
      Section 63.4: Cancelling visits before they begin
    • 1-321
      Section 63.5: Persisting elements across page loads
    • 1-322
      Chapter 64: Friendly ID
    • 1-323
      Section 64.1: Rails Quickstart
    • 1-324
      Chapter 65: Securely storing authentication keys
    • 1-325
      Section 65.1: Storing authentication keys with Figaro
    • 1-326
      Chapter 66: Authenticate Api using Devise
    • 1-327
      Section 66.1: Getting Started
    • 1-328
      Chapter 67: Integrating React.js with Rails Using Hyperloop
    • 1-329
      Section 67.1: Adding a simple react component (written in ruby) to your Rails app
    • 1-330
      Section 67.2: Callbacks
    • 1-331
      Section 67.3: Declaring component parameters (props)
    • 1-332
      Section 67.4: HTML Tags
    • 1-333
      Section 67.5: Event Handlers
    • 1-334
      Section 67.6: States
    • 1-335
      Chapter 68: Change a default Rails application enviornment
    • 1-336
      Section 68.1: Running on a local machine
    • 1-337
      Section 68.2: Running on a server
    • 1-338
      Chapter 69: Rails -Engines
    • 1-339
      Section 69.1: Famous examples are
    • 1-340
      Chapter 70: Adding an Amazon RDS to your rails application
    • 1-341
      Section 70.1: Consider we are connecting MYSQL RDS with your rails application
    • 1-342
      Chapter 71: Payment feature in rails
    • 1-343
      Section 71.1: How to integrate with Stripe
    • 1-344
      Chapter 72: Rails on docker
    • 1-345
      Section 72.1: Docker and docker-compose
    • 1-346
      Appendix A: Reserved Words
    • 1-347
      Section A.1: Reserved Word List
    • 1-348
      Credits
    • 1-349
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