RoR Zombies Tutorial : Notable point

1. Reading Value out of a Hash
This is a Hash

t={id:, status: "Delicious Brains", zombie:"Jim"}

Read Recipe
Variable[:key] => value
Example
t[:id]=3
t[:status]="Delicious Brains"
t[zombie]="Jim"

How to retrieve the tweet object with id=3

ANSWER: t=Tweet.find(3)
{id: 3, status: "Delicious Brains", zombie:"Jim"}

Nb. Use id: in Hash and :id when reading Hash value

Hash Syntax vs Dot Syntax

puts t[:status] same as puts t.status
puts t[:zombie] same as puts t.zombie

Nb. Dot Syntax more suitable to access Tables

Accessing Tables

CRUD



CREATE

READ

 UPDATE

DELETE