我有点问题。你能告诉我为什么permit方法不能从下面的代码返回第二个例子中的data_set_users_attributes和data_set_synch_agents_attributes吗?这很奇怪。所有数据看起来都很好,也允许参数。两个parameters_hash都是从同一个表单发送的,两个permit数据都是由同一个函数创建的。
编辑:我使用Ruby 2.3.0和rails 4.2.4
require 'rails/all'
# Params passes
_permit = [
"configuration_id",
"max_packages_on_server",
"reports_synch_interval_min",
{
"data_set_users_attributes" => [
{
"0" => [
"user_id",
"send_alerts",
"_destroy"
]
},
{
"2015_09_09_15_21_50" => [
"user_id",
"send_alerts",
"_destroy"
]
}
]
},
{
"data_set_synch_agents_attributes" => [
{
"0" => [
"synch_agent_id",
"max_idle_on_data_set",
"_destroy"
]
},
{
"2015_09_09_15_21_51" => [
"synch_agent_id",
"max_idle_on_data_set",
"_destroy"
]
}
]
}
]
parameters_hash = {
"action" => "create",
"commit" => "Save",
"controller" => "data_sets",
"data_set" => {
"configuration_id" => "",
"data_set_synch_agents_attributes" => {
"0" => {
"_destroy" => "false",
"max_idle_on_data_set" => "-1",
"synch_agent_id" => "1"
},
"2015_09_09_15_21_51" => {
"_destroy" => "",
"max_idle_on_data_set" => "-1",
"synch_agent_id" => "2"
}
},
"data_set_users_attributes" => {
"0" => {
"_destroy" => "false",
"send_alerts" => "1",
"user_id" => "1"
},
"2015_09_09_15_21_50" => {
"_destroy" => "",
"send_alerts" => "1",
"user_id" => "2"
}
},
"max_packages_on_server" => "",
"reports_synch_interval_min" => ""
}
}
params = ActionController::Parameters.new(parameters_hash)
p params.require(:data_set).permit(_permit)
# Params not passes
_permit = [
"configuration_id",
"max_packages_on_server",
"reports_synch_interval_min",
{
"data_set_users_attributes" => [
{
"0" => [
"user_id",
"send_alerts",
"_destroy"
]
},
{
"1" => [
"user_id",
"send_alerts",
"_destroy"
]
}
]
},
{
"data_set_synch_agents_attributes" => [
{
"0" => [
"synch_agent_id",
"max_idle_on_data_set",
"_destroy"
]
},
{
"1" => [
"synch_agent_id",
"max_idle_on_data_set",
"_destroy"
]
}
]
}
]
parameters_hash = {
"action" => "create",
"commit" => "Save",
"controller" => "data_sets",
"data_set" => {
"configuration_id" => "",
"data_set_synch_agents_attributes" => {
"0" => {
"_destroy" => "false",
"max_idle_on_data_set" => "-1",
"synch_agent_id" => "1"
},
"1" => {
"_destroy" => "false",
"max_idle_on_data_set" => "-1",
"synch_agent_id" => "2"
}
},
"data_set_users_attributes" => {
"0" => {
"_destroy" => "false",
"send_alerts" => "1",
"user_id" => "1"
},
"1" => {
"_destroy" => "false",
"send_alerts" => "1",
"user_id" => "2"
}
},
"max_packages_on_server" => "",
"reports_synch_interval_min" => ""
}
}
params = ActionController::Parameters.new(parameters_hash)
p params.require(:data_set).permit(_permit)
任何帮助将不胜感激。 最好的问候
答案 0 :(得分:0)
如果我做对了,你需要试试这个:
params.require(:data_set).permit(
:max_packages_on_server,
:reports_synch_interval_min,
data_set_synch_agents_attributes: [:synch_agent_id, :max_idle_on_data_set, :_destroy],
data_set_users_attributes: [:send_alerts, :user_id, :_destroy])
获取更新模型的参数。