ActiveRecords
Ruby on Rails 4.2
12 Videos | 54m 9s - Earns a Badge
Models are the gateway to the database and ActiveRecord is the Rails library for dealing with data. Explore ActiveRecord and how to work with it.
WHAT YOU WILL LEARN
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describe the basics of how ActiveRecord works
use has_one, has_many, and belongs_to associations
use the :through association
make one class belongs_to more than one type of another class
use virtual attributes
persist data into multiple models -
describe Hstore and how it is used
use .where and .find
execute a raw SQL query
compare the .select and .pluck methods
use different finder methods to retrieve objects from the database
recall how to use modules to share functionality between disparate model classes
IN THIS COURSE
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1.Introduction to ActiveRecord4m 48sUP NEXT
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2.Using Basic Associations6m 40s
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3.Using Advanced Associations5m 20s
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4.Using Polymorphic Has_many Relationships6m 1s
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5.Using Virtual Attributes3m 47s
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6.Persisting Data into Multiple Models4m
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7.Exploring PostgreSQL Enhancements3m 49s
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8.Using Where Clauses and Find Methods5m 45s
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9.Executing Raw SQL Queries2m 46s
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10.Using Select and Pluck3m 6s
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11.Using Other Finder Methods3m 7s
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12.Reusing Common Behavior with Modules3m 31s
EARN A DIGITAL BADGE WHEN YOU COMPLETE THIS COURSE
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