Ошибка ActiveRecord при запуске консоли rails

Когда я запускаю консоль rails и хочу протестировать только что созданный шаблон модели, консоль rails не смогла создать мой новый экземпляр модели.

yellow:maw thierry$ rails console
Running via Spring preloader in process 17717
Loading development environment (Rails 5.1.0)
>> Account.create(name: "John Doe", email: "[email protected]", password: "1234ABCD", password_confirmation: "1234ABCD")
ActiveRecord::StatementInvalid: PG::UndefinedTable: ERROR:  relation "accounts" does not exist
LINE 8:                WHERE a.attrelid = '"accounts"'::regclass
                                          ^
:               SELECT a.attname, format_type(a.atttypid, a.atttypmod),
                     pg_get_expr(d.adbin, d.adrelid), a.attnotnull, a.atttypid, a.atttypmod,
                     c.collname, col_description(a.attrelid, a.attnum) AS comment
                FROM pg_attribute a
                LEFT JOIN pg_attrdef d ON a.attrelid = d.adrelid AND a.attnum = d.adnum
                LEFT JOIN pg_type t ON a.atttypid = t.oid
                LEFT JOIN pg_collation c ON a.attcollation = c.oid AND a.attcollation <> t.typcollation
               WHERE a.attrelid = '"accounts"'::regclass
                 AND a.attnum > 0 AND NOT a.attisdropped
               ORDER BY a.attnum

    from (irb):1
>> 

Но с «rails db» выполнение SQL-запроса ActiveRecord в той же среде (здесь, разработка) дает мне следующий результат:

yellow:maw thierry$ rails db
psql (9.6.2)
Type "help" for help.

maw_development=> SELECT a.attname, format_type(a.atttypid, a.atttypmod),
maw_development->                      pg_get_expr(d.adbin, d.adrelid), a.attnotnull, a.atttypid, a.atttypmod,
maw_development->                      c.collname, col_description(a.attrelid, a.attnum) AS comment
maw_development->                 FROM pg_attribute a
maw_development->                 LEFT JOIN pg_attrdef d ON a.attrelid = d.adrelid AND a.attnum = d.adnum
maw_development->                 LEFT JOIN pg_type t ON a.atttypid = t.oid
maw_development->                 LEFT JOIN pg_collation c ON a.attcollation = c.oid AND a.attcollation <> t.typcollation
maw_development->                WHERE a.attrelid = '"accounts"'::regclass
maw_development->                  AND a.attnum > 0 AND NOT a.attisdropped
maw_development->                ORDER BY a.attnum;
     attname     |         format_type         |             pg_get_expr              | attnotnull | atttypid | atttypmod | collname | comment 
-----------------+-----------------------------+--------------------------------------+------------+----------+-----------+----------+---------
 id              | bigint                      | nextval('accounts_id_seq'::regclass) | t          |       20 |        -1 |          | 
 name            | character varying           |                                      | f          |     1043 |        -1 |          | 
 email           | character varying           |                                      | f          |     1043 |        -1 |          | 
 created_at      | timestamp without time zone |                                      | t          |     1114 |        -1 |          | 
 updated_at      | timestamp without time zone |                                      | t          |     1114 |        -1 |          | 
 password_digest | character varying           |                                      | f          |     1043 |        -1 |          | 
(6 rows)

maw_development=> SELECT a.attname, format_type(a.atttypid, a.atttypmod),
                     pg_get_expr(d.adbin, d.adrelid), a.attnotnull, a.atttypid, a.atttypmod,
                     c.collname, col_description(a.attrelid, a.attnum) AS comment
                FROM pg_attribute a
                LEFT JOIN pg_attrdef d ON a.attrelid = d.adrelid AND a.attnum = d.adnum
                LEFT JOIN pg_type t ON a.atttypid = t.oid
                LEFT JOIN pg_collation c ON a.attcollation = c.oid AND a.attcollation <> t.typcollation
               WHERE a.attrelid = 'accounts'::regclass
                 AND a.attnum > 0 AND NOT a.attisdropped
               ORDER BY a.attnum;
     attname     |         format_type         |             pg_get_expr              | attnotnull | atttypid | atttypmod | collname | comment 
-----------------+-----------------------------+--------------------------------------+------------+----------+-----------+----------+---------
 id              | bigint                      | nextval('accounts_id_seq'::regclass) | t          |       20 |        -1 |          | 
 name            | character varying           |                                      | f          |     1043 |        -1 |          | 
 email           | character varying           |                                      | f          |     1043 |        -1 |          | 
 created_at      | timestamp without time zone |                                      | t          |     1114 |        -1 |          | 
 updated_at      | timestamp without time zone |                                      | t          |     1114 |        -1 |          | 
 password_digest | character varying           |                                      | f          |     1043 |        -1 |          | 
(6 rows)

maw_development=>

Все миграции уже применены:

yellow:maw thierry$ rake db:migrate:status

database: maw_development

 Status   Migration ID    Migration Name
--------------------------------------------------
   up     20170505175757  Create enterprises
   up     20170507120815  Create accounts
   up     20170507170408  Add index to users email
   up     20170507172846  Add password digest to users

yellow:maw thierry$

Как вы видите, я дважды выполнил запрос:

• Один, добавив одинарную + двойную кавычку в имя сгенерированной модели.
• Один только с одинарными кавычками.

Кто-нибудь сталкивался с этой ошибкой? И как вы ее решили?

Заранее благодарю за любую помощь.

Контекст:

• Рельсы 5.1.0
• В macOS Сьерра
• Использование Рбенв.
• С Руби 2.4.1p111.
• Адаптер PG: 0.20.0

В каталоге моделей:

yellow:maw thierry$ ls -al app/models/
total 24
drwxr-xr-x   6 thierry  staff  204  7 mai 14:08 .
drwxr-xr-x  10 thierry  staff  340  5 mai 16:23 ..
-rw-r--r--@  1 thierry  staff  531  8 mai 12:44 account.rb
-rw-r--r--   1 thierry  staff   78  5 mai 16:23 application_record.rb
drwxr-xr-x   3 thierry  staff  102  5 mai 16:23 concerns
-rw-r--r--@  1 thierry  staff  161  7 mai 18:41 enterprise.rb
yellow:maw thierry$

Содержание account.rb:

yellow:maw thierry$ cat app/models/account.rb 
class Account < ApplicationRecord
  before_save { email.downcase! }
  validates :name, presence: true, length: { maximum: 250 }
  VALID_EMAIL_REGEX = /\A[\w+\-.]+@[a-z\d\-]+(\.[a-z\d\-]+)*\.[a-z]+\z/i
  validates :email, presence: true, length: { maximum: 255 }, format: { with: VALID_EMAIL_REGEX }, uniqueness: { case_sensitive: false }

  has_secure_password
  #This validation must be put after has_secure_password in order for the password field to be defined.
  validates :password, presence: true, length: { minimum: 6 }
end
yellow:maw thierry$