demarches-normaliennes/app/models/condition_form.rb
2022-07-06 16:35:23 +02:00

58 lines
1.1 KiB
Ruby

class ConditionForm
include ActiveModel::Model
include Logic
attr_accessor :top_operator_name, :rows
def to_condition
case sub_conditions.count
when 0
nil
when 1
sub_conditions.first
else
top_operator_class.new(sub_conditions)
end
end
def delete_row(i)
rows.slice!(i)
self
end
def change_champ(i)
sub_conditions[i] = Logic.ensure_compatibility_from_left(sub_conditions[i])
self
end
private
def top_operator_class
Logic.class_from_name(top_operator_name)
end
def sub_conditions
@sub_conditions ||= rows.map { |row| row_to_condition(row) }
end
def row_to_condition(row)
left = Logic.from_json(row[:targeted_champ])
right = parse_value(row[:value])
Logic.class_from_name(row[:operator_name]).new(left, right)
end
def parse_value(value)
return empty if value.blank?
number = Integer(value) rescue nil
return constant(number) if number.present?
json = JSON.parse(value) rescue nil
return Logic.from_json(value) if json.present?
constant(value)
end
end