Initializing empty records with `Model.new` or `Model.build`

Today Jennifer doesn't support Model.new or Model.build without any attributes nor with a sub-set of required attributes. Is this by choice or something that slipped through?

Example:

class User < Jennifer::Model::Base
  with_timestamps

  mapping(
    id: Primary32,
    name: String,
    created_at: Time?,
    updated_at: Time?,
  )
end

User.new({:name => "Jennifer"})
Unhandled exception: Column User.age can't be casted from Nil to it's type - Int32 (Jennifer::DataTypeCasting)
  from src/models/user.cr:4:3 in '_extract_attributes'
  from src/models/user.cr:4:3 in 'initialize'
  from src/models/user.cr:4:3 in 'initialize'
  from src/models/user.cr:4:3 in 'new'
  from .icr_cRpmabygCPTixNpJwNqrZA.cr:13:3 in '__icr_exec__'
  from .icr_cRpmabygCPTixNpJwNqrZA.cr:16:26 in '__crystal_main'
  from /opt/homebrew/Cellar/crystal/1.3.2/src/crystal/main.cr:115:5 in 'main_user_code'
  from /opt/homebrew/Cellar/crystal/1.3.2/src/crystal/main.cr:101:7 in 'main'
  from /opt/homebrew/Cellar/crystal/1.3.2/src/crystal/main.cr:127:3 in 'main'

User.new
          ^--
Error: wrong number of arguments for 'User.new' (given 0, expected 1..2)

Overloads are:
 - User.new(values : Hash | NamedTuple, new_record : Bool)
 - User.new(values : Hash | NamedTuple, new_record)
 - User.new(pull : DB::ResultSet)
 - User.new(values : Hash(Symbol, AttrType) | NamedTuple)
 - User.new(values : Hash(String, AttrType))

crystal-lang / crystal-sqlite3

Initializing empty records with `Model.new` or `Model.build` #81