Wednesday, September 16, 2015
Hello. I know the title may be broad, but I am not sure how else to put it.
I am writing a model, in which the attribute "number_of_extensions" needs 2 things:
1. It is required for this model
2. It must be a whole, positive number
I know I can do this simply by
However, if I validate for JUST numericality, is it assumed that the attribute SHOULD be present?
In my database, I cannot restrict NULL values for this column. The model I am working on is a child of another, where the main model does not require # of extensions, but this child model does.
Also, while I am talking about validations, I have another question:
I know that the following type of validations is not in the docs anymore, but it is still supported. Would the following line be possible?
Thank you for the time and help!
-- I am writing a model, in which the attribute "number_of_extensions" needs 2 things:
1. It is required for this model
2. It must be a whole, positive number
I know I can do this simply by
validates :number_of_extensions, presence: true, numericality: { only_integer: true }
However, if I validate for JUST numericality, is it assumed that the attribute SHOULD be present?
In my database, I cannot restrict NULL values for this column. The model I am working on is a child of another, where the main model does not require # of extensions, but this child model does.
Also, while I am talking about validations, I have another question:
I know that the following type of validations is not in the docs anymore, but it is still supported. Would the following line be possible?
validates_numericality_of :number_of_extensions, :number_of_sidecars, :number_of_phones, only_integer: true
Thank you for the time and help!
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