Class: PlanLimits

Inherits:
ApplicationRecord show all
Includes:
IgnorableColumns
Defined in:
app/models/plan_limits.rb

Constant Summary collapse

LimitUndefinedError =
Class.new(StandardError)

Constants inherited from ApplicationRecord

ApplicationRecord::MAX_PLUCK

Instance Method Summary collapse

Methods inherited from ApplicationRecord

cached_column_list, #create_or_load_association, declarative_enum, default_select_columns, id_in, id_not_in, iid_in, pluck_primary_key, primary_key_in, #readable_by?, safe_ensure_unique, safe_find_or_create_by, safe_find_or_create_by!, #to_ability_name, underscore, where_exists, where_not_exists, with_fast_read_statement_timeout, without_order

Methods included from SensitiveSerializableHash

#serializable_hash

Instance Method Details

#exceeded?(limit_name, subject, alternate_limit: 0) ⇒ Boolean

Returns:

  • (Boolean)

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# File 'app/models/plan_limits.rb', line 12

def exceeded?(limit_name, subject, alternate_limit: 0)
  limit = limit_for(limit_name, alternate_limit: alternate_limit)
  return false unless limit

  case subject
  when Integer
    subject >= limit
  when ActiveRecord::Relation
    # We intentionally not accept just plain ApplicationRecord classes to
    # enforce the subject to be scoped down to a relation first.
    #
    # subject.count >= limit value is slower than checking
    # if a record exists at the limit value - 1 position.
    subject.offset(limit - 1).exists?
  else
    raise ArgumentError, "#{subject.class} is not supported as a limit value"
  end
end

#limit_for(limit_name, alternate_limit: 0) ⇒ Object


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# File 'app/models/plan_limits.rb', line 31

def limit_for(limit_name, alternate_limit: 0)
  limit = read_attribute(limit_name)
  raise LimitUndefinedError, "The limit `#{limit_name}` is undefined" if limit.nil?

  alternate_limit = alternate_limit.call if alternate_limit.respond_to?(:call)

  limits = [limit, alternate_limit]
  limits.map(&:to_i).select(&:positive?).min
end