【发布时间】：2015-01-15 19:27:55
【问题描述】：
我刚刚在我的模型文件（称为project.rb）中创建了一个新的 rails 文件，我进行了以下验证：
class Project < ActiveRecord::Base
validates :title, presence: true
end
我有三个属性：title、description 和 due_date。然而，当我跳进我的终端并输入描述和截止日期（没有标题）并点击保存时，它就可以工作了！
我不明白为什么。
> p.description="lksdf" ( add description )
"lksdf"
> p.due_date="kldf" ( add due_date )
"kldf"
> p.save
(0.2ms) BEGIN
(4.6ms) COMMIT
true
2.2.0 :077 > Project.all
Project Load (0.6ms) SELECT "projects".* FROM "projects"
+----+-------------+-----------------+-----------------+----------------+-----------------+
| id | title | description | due_date | created_at | updated_at |
+----+-------------+-----------------+-----------------+----------------+-----------------+
| 1 | 1st project | this is my f... | in a weeks time | 2015-01-15 ... | 2015-01-15 1... |
| 2 | 2ndproj | 2nd slfajlsj... | next year | 2015-01-15 ... | 2015-01-15 1... |
| 3 | 3rdsdlfk | kdlajdflks;af | never haha | 2015-01-15 ... | 2015-01-15 1... |
| 4 | 4th title | lasdj | 2045 | 2015-01-15 ... | 2015-01-15 1... |
| 5 | fifth title | ldksajf | never aaja | 2015-01-15 ... | 2015-01-15 1... |
| 6 | | klsaf | slkadf | 2015-01-15 ... | 2015-01-15 1... |
| 7 | | kjldsfds | | 2015-01-15 ... | 2015-01-15 1... |
| 8 | | aljbsfalkjsdf | | 2015-01-15 ... | 2015-01-15 1... |
| 9 | | lksdf | kldf | 2015-01-15 ... | 2015-01-15 1... |
+----+-------------+-----------------+-----------------+----------------+-----------------+
9 rows in set
【问题讨论】：
-
整个模型长什么样？
-
您是
reload!还是重启了控制台？
标签： ruby-on-rails ruby validation model