Erreur ActiveRecord lors de l'exécution de la console rails

Question

Lorsque je lance la console rails et que je souhaite tester un modèle de modèle que je viens de créer, la console rails ne parvient pas à créer ma nouvelle instance de modèle.

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: "john.doe@example.com", 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 
>> 

Mais, avec des "rails db", exécution de la requête ActiveRecord SQL dans le même environnement (ici, développement) me donner cette sortie:

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=> 

Toutes les migrations ont déjà été appliquées:

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$ 

Comme vous pouvez le voir, je l'ai exécuté deux fois la demande:

• Un en laissant le guillemet simple + double dans le nom du modèle généré.
• Un avec seulement des guillemets simples.

Est-ce que quelqu'un a rencontré cette erreur? Et comment l'avez-vous résolu?

Merci d'avance pour toute aide.

Contexte:

• Rails 5.1.0
• macOS Sierra Sur
• Utilisation Rbenv.
• Avec Ruby 2.4.1p111.
• adaptateur PG: 0.20.0

Dans le répertoire des modèles:

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$ 

Contenu de 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$ 

Answer 1

Comme @Iceman a suggéré dans son commentaire, il était " lié au printemps ". Donc, j'ai:

• console d'arrêt de rails.
• ressort d'arrêt avec "arrêt de ressort".
• vérifié que le printemps était vraiment arrêter avec "ps aux | grep printemps" et il était.
• et finalement redémarré "rails console".

Et le résultat est:

yellow:maw thierry$ rails console 
Running via Spring preloader in process 22940 
Loading development environment (Rails 5.1.0) 
>> Account.create(name: "John Doe", email: "john.doe@example.com", password: "1234ABCD", password_confirmation: "1234ABCD") 
    (0.1ms) BEGIN 
    Account Exists (61.2ms) SELECT 1 AS one FROM "accounts" WHERE LOWER("accounts"."email") = LOWER($1) LIMIT $2 [["email", "john.doe@example.com"], ["LIMIT", 1]] 
    SQL (0.5ms) INSERT INTO "accounts" ("name", "email", "created_at", "updated_at", "password_digest") VALUES ($1, $2, $3, $4, $5) RETURNING "id" [["name", "John Doe"], ["email", "john.doe@example.com"], ["created_at", "2017-05-09 08:14:29.093633"], ["updated_at", "2017-05-09 08:14:29.093633"], ["password_digest", "$2a$10$3rCS7ynWP1r8VuPRDyQmOe0Czpm6ingOX16I6./s9a5TjUxnkPSzu"]] 
    (40.5ms) COMMIT 
=> #<Account id: 1, name: "John Doe", email: "john.doe@example.com", created_at: "2017-05-09 08:14:29", updated_at: "2017-05-09 08:14:29", password_digest: "$2a$10$3rCS7ynWP1r8VuPRDyQmOe0Czpm6ingOX16I6./s9a5..."> 
>>