ActiveRecord Validations

Versions

[{“Name”:“3.0”,“GroupName”:null},{“Name”:“3.1”,“GroupName”:null},{“Name”:“3.2”,“GroupName”:null},{“Name”:“4.0”,“GroupName”:null},{“Name”:“4.1”,“GroupName”:null},{“Name”:“4.2”,“GroupName”:null},{“Name”:“5.0”,“GroupName”:null}]

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ActiveRecord validations:

*ActiveRecord Validations

*Validating length of an attribute

*Validates format of an attribute

*Validating presence of an attribute

*Custom validations

*Validating numericality of an attribute

*Grouping validation

*Validates inclusion of an attribute

*Skipping Validations

*Validate uniqueness of an attribute

*Conditional validation

*Confirmation of attribute

*Using on option

Table Of Contents

0Getting started with Ruby on Rails

4ActiveRecord migrations

5Rails best practices

6Naming conventions

9User Authentication in Rails

10ActiveRecord Associations

11ActiveRecord validations

12ActiveRecord Query Interface

14Rails generate commands

15Configuration

16I18N - internalization

17Using Google Maps with Rails

20ActionController

21Configuration

22Safe constantize

24Authorization with CanCan

27Change default timezone

28Asset pipeline

29Upgrading Rails

30ActiveRecord locking

32Configure Angular with Rails

36Deploying a Rails app on Heroku

37ActiveSupport

39ActiveRecord transactions

40RSpec and Ruby on Rails

41Decorator pattern

42Elasticsearch

43React with Rails

44Rails cookbook

45Multi-purpose ActiveRecord columns

46Class organization

47Shallow Routing

48Model states AASM

49Rails 5 API Authentication

50Testing Rails Applications

52Rails frameworks over the years

56Tools for code optimization and cleanup

58Active Model serializers

59Rails Engine - Modular Rails

60Single Table inheritance

61ActiveRecord transactions

64Securely storing authentications keys

65Authenticate API using Devise

66Integrating React.js with Rails using Hyperloop

67Change a default Rails application environment

68Reserved words

69Rails-Engines

70Adding an Amazon RDS

71Payment features in Rails

72Rails on docker