Rails Cheatsheet

rails_cheatsheet.md

Migration Data Types

# Binary
$ rails generate migration AddImageDataToPhotos image_data:binary

# Boolean
$ rails generate migration AddIsActiveToUsers is_active:boolean

# Date
$ rails generate migration AddBirthdateToPeople birthdate:date

# DateTime
$ rails generate migration AddTimestampsToPosts created_at:datetime updated_at:datetime

# Decimal
$ rails generate migration AddPriceToProducts price:decimal{8,2}

# Float
$ rails generate migration AddScoreToPlayers score:float

# Integer
$ rails generate migration AddQuantityToItems quantity:integer

# BigInt
$ rails generate migration AddBigNumberToTable big_number:bigint

# Primary Key (through model generation)
$ rails generate model Product name:string price:decimal{8,2}

# References
$ rails generate migration AddAuthorIdToBooks author:references

# String
$ rails generate migration AddTitleToBooks title:string

# Text
$ rails generate migration AddDescriptionToArticles description:text

# Time
$ rails generate migration AddStartTimeToEvents start_time:time

# Timestamp
$ rails generate migration AddTimestampToOrders timestamp:timestamp

# UUID
$ rails generate migration AddUuidToUsers uuid:uuid