On Monday, April 30, 2018 at 3:10:19 PM UTC-7, craig buchanan wrote:
>
> The `validates_includes` validation works with strings and numeric values
>
> require 'sequel'
>
> DB = Sequel.sqlite
>
> DB.create_table(:users) do
> primary_key :id
> String :name, null: false
> String :type
> end
>
> class User < Sequel::Model
> plugin :validation_helpers
>
> def validate
> super
> validates_presence [:name]
> validates_includes %w(a b c), :type
> end
>
> end
>
> irb> u = User.new(name: 'craig', type: 'a')
> => #<User @values={:name=>"craig",:type=>a}>
> irb> u.valid?
> => true
>
> However, if the validation is changed:
>
> def validate
> super
> validates_presence [:name]
> validates_includes %i(a b c), :type
> end
>
> the validations fail:
>
> irb> u = User.new(name: 'craig', type: :c)
> => #<User @values={:name=>"craig",:type=>:c}>
> irb> u.valid?
> => false
> irb> u.errors
> => {:type=>["is not in range or set: [:a, :b, :c]"]}
>
> Can symbols be used in this type of validation?
>
Yes, but in general it wouldn't make sense unless type was a virtual column
(and it isn't in your example), since you can't store the symbols in the
database.
I think the issue you are having is that User.new is going to typecast :c
to 'c' when it calls User#type=, since the column type of type is string.
It's odd that your inspect output is showing :type=>:c instead of
:type=>"c", but I'm guessing that is forged, since the previous example
inspect output uses :type=>a instead of :type=>"a".
Thanks,
Jeremy
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