app/validators/date_month_validator.rb
=begin
Child class of DateTimeValidator class
Example on how to use this class:
In the model file call
validates :model_attribute, date_month: true
To pass parameters to have custom min/max values
validates :model_attribute, date_month: { min_month: 3, max_month: 29 }
Description:
This class is a custom validators for date month related attributes.
Checks if the model_attribute is empty, an integer, and within min_month and max_month inclusive
Optional parameters:
allow_blank, default true, from base class
If true, allows the model attribute to be empty, aka not set
message, default "must be an integer between #{@min_value} and #{@max_value}", from base class
Error message to be added to the model_attribute if an error occurs
min_month, default 1
Minimum month value for the model_attribute
max_month, default 12
Maximum month value for the model_attribute
=end
class DateMonthValidator < DateTimeValidator
def validate_each(record, attribute, value)
@min_value = options.fetch(:min_month, 1)
@max_value = options.fetch(:max_month, 12)
super
end
end