[英]how to do more than one updates in one controller in ruby on rails
I have two models as x and y, such that: 我有x和y两个模型,例如:
y.rb: y.rb:
class y < ActiveRecord::Base
belongs_to :x
end
x.rb: x.rb:
class X < ActiveRecord::Base
has_many :Ys
end
my controller will be: 我的控制器将是:
x.controller.rb: x.controller.rb:
def update
@x = X.find(params[:id])
@x.update_attributes(params[:x])
@y = (params[:y])
@y.each { |t| t.attributes = params[:y][t.id.to_s] }
@x.ys.build(attributes)
flash[:notice] = 'X was successfully updated.'
redirect_to :action => 'edit'
end
It's not updating the y data and giving error as: 它没有更新y数据并给出如下错误:
undefined method `attributes=' for ["s", "1233"]:Array [“ s”,“ 1233”]的未定义方法`attributes =':数组
params[:y]
looks to be an array of arrays; params[:y]
看起来是一个数组数组; that is, for each instance of Y described in params, there's a separate array. 也就是说,对于在参数中描述的每个Y实例,都有一个单独的数组。 Therefore when you do @y.each
, you're iterating over a bunch of arrays, not a bunch of Ys. 因此,当您执行@y.each
,您要遍历一堆数组,而不是一堆Ys。
It seems that t is an array not an ActiveRecord object. 看来t是一个数组,而不是ActiveRecord对象。
From your pseudo-code bug is here 来自您的伪代码错误在这里
@y = (params[:y])
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