[英]Unpermitted parameters in rails 4
I read about collection_check_boxes
but I don't understand how can I set the checked values. 我读到了关于collection_check_boxes
但我不明白如何设置选中的值。 I have the following model: 我有以下型号:
class Objective < ActiveRecord::Base
has_many :indicators
has_many :objective_children, class_name: "Objective", foreign_key: "parent_id"
def objective_ids
objective_children.collect{|o| o.id}
end
def objective_ids= objectives_ids
objectives_ids.each do |id|
objective_children << Objective.find(id)
end
end
end
edit view: 编辑视图:
<%= form_for(@objective) do |f| %>
<%= f.collection_check_boxes :objective_ids, Objective.all, :id, :name %>
<%= f.submit %>
<% end %>
the html checkbox are ok but I don't know how to set the values to objective
. html复选框没问题,但我不知道如何将值设置为objective
。 I was tried define objective_ids= objectives_ids
but nothing happens. 我试过定义objective_ids= objectives_ids
但没有任何反应。
In Controller: 在控制器中:
class ObjectivesController < ApplicationController
def objective_params
params.require(:objective).permit(:name, :code, :description, :objective_ids)
end
end
EDIT The log file says Unpermitted parameters: perspective_id, objective_ids
编辑日志文件显示未Unpermitted parameters: perspective_id, objective_ids
I solved changing the line 我解决了换线问题
params.require(:objective).permit(:name, :code, :description, :objective_ids)
to 至
params.require(:objective).permit(:name, :code, :description, :objective_ids => [])
I get the same problem, try this line: 我遇到同样的问题,试试这行:
params.require(:objective).permit(:name, :code, :description, :objective_ids => [])
but does not work and i change to: 但不起作用,我改为:
params.require(:objective).permit(:name, :code, :description, {:objective_ids => []})
and it works !! 它的工作原理!!
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