如何将数组分解为字符串MVC?
如果current_user
提交了一个习惯,那么他:committed
这样做的日子就是这样:
- db
t.text "committed", default: ["sun", "mon", "tue", "wed", "thu", "fri", "sat"], array: true
- 习惯/ _form
(用户选择天数)
- habit_controller
habit_params :committed => []
- 习惯/指数
如果一个nil
用户提交了一个习惯(鼓励他在注册前创建一个习惯),那么他:committed
这样做的日子是这样的:
- db
t.text "committed", default: ["sun", "mon", "tue", "wed", "thu", "fri", "sat"], array: true
- 习惯/ _form
(用户选择天数)
- * habit_controller
session[:habit_committed] = [params["habit"]["committed"]]
- * users_controller
committed = session.delete(:habit_committed)
@user.habits.create(committed: committed)
- 习惯/指数
当两个习惯首次提交时,终端看起来像这样:
Started POST "/habits" for 127.0.0.1 at 2015-08-11 13:15:40 -0400 Processing by HabitsController#create as HTML Parameters: {"utf8"=>"✓", "authenticity_token"=>"EDxn180pxfaqNCBNtzxJd3Y0XHO5m9eURhj9WOf25Re64ed0f99HlIXIgHfNpyJIi1KD92SQ/QggcTCf7pZPHw==", "habit"=>{"committed"=>["sun", "mon", "tue", "wed", "thu", "fri", "sat", ""], "date_started(2i)"=>"8", "date_started(3i)"=>"11", "date_started(1i)"=>"2015", "trigger"=>"test", "action"=>"test", "target"=>"test", "reward"=>"test"}, "button"=>""} Redirected to http://0.0.0.0:3000/valuation_signup Completed 302 Found in 11ms (ActiveRecord: 0.0ms)
但是他们不同的地方是当用户完成注册时我看到终端总结如下: ["committed", "{{NULL}}"]
或["committed", "{NULL}"]
或["committed", "{}"]
。
我尝试过各种各样的东西,例如.join
, .split
, .inspect
, .map
, .map(&:inspect).join(', ')
.inspect
.map {|str| "\"#{str}\""}.join(',')
.map {|str| "\"#{str}\""}.join(',')
但我猜我没有使用正确的混合或格式。
对不起,如果这个问题的布局看起来像ransom
票据。
第一次尝试
- 将db更改为
t.text "committed", default: "---\n- sun\n- mon\n- tue\n- wed\n- thu\n- fri\n- sat\n"
- habit.rb
serialize :committed, Array
- 习惯/ _form
(用户选择天数)
- habit_controller
session[:habit_committed] = [params["habit"]["committed => []"]]
- * users_controller
committed = session.delete(:habit_committed)
@user.habits.create(committed: committed)
- 习惯/指数
这产生了: ["committed", "---\n- \n"]
当您将会话变量设置为已提交时,您将其设置为空数组,然后获取一个空数组作为值。
在你的日志中, params [“habit”] [“committed”]的值已经是一个数组,所以不需要重新解析它或将其嵌入其他括号中
所以尝试一下:
habit_controller.rb session [:habit_committed] = params [“habit”] [“committed”]。reject(&:empty?)