Patch ActiveRecord's find_by to prevent errors because of strings passed to numeric columns

patch_activerecord_find_by.rb

# This can be added to config/initializers

class ActiveRecordPatch

  # find_by(numeric_column: "foo") converts "foo" to 0 before searching.
  # This is probably not desired.
  # This patch prevents this behavior
  #
  def self.validate_input_for_numeric_conditions(class_or_query, conditions)
    # iterate over each key-val in the query  hash
    conditions.each do |column_name, column_val|
      # lookup the type of the column corresponding to the key
      column_type = class_or_query.columns_hash[column_name.to_s]&.type
      # return early if no type is detected;
      # it is an invalid column and will error in the original find_by call
      break unless column_type
      # only handle columns of numeric types
      if [:integer, :float, :decimal].include? column_type
        # Raise an error if a non-nil, non-numeric value was provided
        if column_type != nil && !column_val.is_a?(Numeric)
          raise(
            ArgumentError,
            "non-numeric passed for numeric column #{column_name}"
          )
        end
      end
    end
  end

end

module ActiveRecord::Core::ClassMethods
  def find_by(conditions)
    all.find_by conditions
  end
end

module ActiveRecord::FinderMethods
  def find_by(conditions)
    ActiveRecordPatch.validate_input_for_numeric_conditions(self, conditions)
    where(conditions).take
  end
end