daterange_extensions.cr

struct Daterange
  def self.adapter
    Lucky
  end

  module Lucky
    alias ColumnType = UInt8
    include Avram::Type

    def parse(value : UInt8)
      SuccessfulCast(UInt8).new(value)
    end

    def parse(values : Array(UInt8))
      SuccessfulCast(Array(UInt8)).new values
    end

    def parse(value : String)
      SuccessfulCast(UInt8).new(UInt8.new(value))
    end

    def parse(values : Array(String))
      SuccessfulCast(Array(UInt8)).new values
    end

    def to_db(value : UInt8)
      value.to_s
    end

    class Criteria(T, V) < Avram::Criteria(T, V)
    end
  end
end

web          | Called macro defined in lib/avram/src/avram/save_operation.cr:250:3
web          |
web          |  250 | macro add_cast_value_methods(columns)
web          |
web          | Which expanded to:
web          |
web          |  > 36 | # `value` is passed to `PQ::Param` to properly encode `[true]` to `{t}`, etc...
web          |  > 37 | private def cast_value(value : Daterange)
web          |  > 38 |   value.not_nil!.class.adapter.to_db(value.as(Daterange))
web          |                                        ^----
web          | Error: no overload matches 'Daterange::Lucky.to_db' with type Daterange
web          |
web          | Overloads are:
web          |  - Daterange::Lucky#to_db(value : UInt8)
web          |  - Avram::Type#to_db(value : Nil)

Instead of SuccessfulCast(UInt8).new(UInt8.new(value))
I could also write the line like this SuccessfulCast(UInt8).new value.to_u8