[英]mysql missing field after running rails db migration
i have a rails migration: 我有一个rails迁移:
>> cat db/migrate/20091126031039_create_cards.rb
class CreateCards < ActiveRecord::Migration
def self.up
create_table :cards do |t|
t.string :number_hash
t.int :number
t.string :name
t.string :type
t.string :expiration
t.int :sec_code
t.timestamps
end
end
def self.down
drop_table :cards
end
end
notice the "t.int :sec_code" line. 注意“ t.int:sec_code”行。 it seems to execute successfully:
它似乎执行成功:
>> rake db:migrate(in /Users/aaronj1335/Sites/clarkbox)
== CreateCards: migrating ====================================================
-- create_table(:cards)
-> 0.4315s
== CreateCards: migrated (0.4317s) ===========================================
but the "sec_code" column isn't created: 但未创建“ sec_code”列:
mysql> describe cards;
+-------------+--------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+-------------+--------------+------+-----+---------+----------------+
| id | int(11) | NO | PRI | NULL | auto_increment |
| number_hash | varchar(255) | YES | | NULL | |
| name | varchar(255) | YES | | NULL | |
| type | varchar(255) | YES | | NULL | |
| expiration | varchar(255) | YES | | NULL | |
| created_at | datetime | YES | | NULL | |
| updated_at | datetime | YES | | NULL | |
+-------------+--------------+------+-----+---------+----------------+
7 rows in set (0.00 sec)
why isn't the sec_code column created? 为什么不创建sec_code列? it seems like i should get an error...
似乎我应该得到一个错误...
好吧,我也没有看到正确创建的“ number”字段,因此它必须是类型(t.int:number丢失)
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