无法将 post 保存到数据库
Cannot save a post to a database
我有一个活动应用程序，我在其中使用日历。我已经为 #save 和 #load 数据创建了 2 个外部路由和控制器操作，并且我有 2 个模板。一个是 save.json.erb 另一个是 load.json.erb。现在，我已经硬编码了来自 load.json.erb 的负载数据，看起来像；
{"2015-05-06": {"available":"1",
"bind":0,
"info":"",
"notes":"",
"price":"20",
"promo":"",
"status":"available"
},
"2015-05-07": {"available":"1",
"bind":0,
"info":"",
"notes":"",
"price":"20",
"promo":"",
"status":"available"
}}
因此，它显示了日历上的硬编码数据。
我的问题是，当我按下提交时，它没有给出错误，但没有将它保存到数据库中。我也无法弄清楚强参数。我现在正在使用 permit! 来查看它是否保存到数据库中。也许我的事件模型及其列是错误的。因为我不知道它是什么 posts (integer, string etc..)
这是我的 events_controller
....
def load
end
def save
#THIS IS WRONG I SHOULD PUT SMTH ELSE
@event = Event.new
@event.save
end
def event_params
params.require(:event).permit!
end
当我 select 来自日历的数据按下提交时它会发送这个；
HEADER:
event_id:0
event:{"2015-05-06":{"available":"1","bind":0,"info":"","notes":"","price":"20","promo":"","status":"available"},"2015-05-07":{"available":"1","bind":0,"info":"","notes":"","price":"20","promo":"","status":"available"},"2015-05-27":{"available":"1","bind":0,"info":"demo","notes":"demodemodemo","price":"15","promo":"2","status":"available"}}
同样来自日志；这个数据是 JSON 吗？还是我必须在某处使用 JSON.parse？
Started POST "/events/save" for ::1 at 2015-05-02 18:39:42 +0300
Processing by EventsController#save as */* #HERE IT SENDS THE PARAMETERS, BUT I COULD NOT GET THEM
Parameters: {"event_id"=>"0", "event"=>"{\"2015-05-06\":{\"available\":\"1\",\"bind\":0,\"info\":\"\",\"notes\":\"\",\"price\":\"20\",\"promo\":\"\",\"status\":\"available\"},\"2015-05-07\":{\"available\":\"1\",\"bind\":0,\"info\":\"\",\"notes\":\"\",\"price\":\"20\",\"promo\":\"\",\"status\":\"available\"},\"2015-05-27\":{\"available\":\"1\",\"bind\":0,\"info\":\"demo\",\"notes\":\"demodemodemo\",\"price\":\"15\",\"promo\":\"2\",\"status\":\"available\"}}"}
(0.1ms) begin transaction
SQL (0.5ms) INSERT INTO "events" ("created_at", "updated_at") VALUES (?, ?) [["created_at", "2015-05-02 15:39:42.823906"], ["updated_at", "2015-05-02 15:39:42.823906"]]
(2.4ms) commit transaction
Rendered events/save.json.erb (0.1ms)
Completed 200 OK in 21ms (Views: 12.9ms | ActiveRecord: 3.0ms)
当我尝试时；
def save
@event = Event.new(event_params)
@event.save
end
def event_params
params.require(:event).permit!
end
它给出了 ;
的错误
NoMethodError in EventsController#save
undefined method `permit!' for #<String:0x007fcbb99d24c0>
所以我认为它是 posted 作为字符串而不是散列。
对我来说，它发送到数据库的数据有问题，或者数据库无法为这些数据配置。由于 #save 操作一直有 @events = Event.new 它在数据库中创建新事件并保存 it.So 我必须获取 POSTed 数据但我无法获取这些参数。我想我必须获取 POSTed 数据，并且使用 for 循环我必须获取这些数据并将其保存到数据库中。找不到办法。希望有人帮忙
这里是完整的 HEADER:
Cache-Control:no-cache
Connection:Keep-Alive
Content-Length:0
Content-Type:application/json; charset=utf-8
Date:Sat, 02 May 2015 18:42:54 GMT
Server:WEBrick/1.3.1 (Ruby/2.2.1/2015-02-26)
Set-Cookie:_demo_session=Snh1Nm5CNWJzTHNITXp5SkRDejNmZzRXRkdoVm5SeEkwUW82WmE5QkFndThkeUdyTEdBK2s3ZVR1aEUxQXpGclpqR202WTIzSGkzNWtIQUdWZXFFeUtmSVpBbnZZNmJnN090YUxXS2c5eFFPVzZOaXJjTGJndGRsS0xBcUhaU0VlMFAvRVdtT05RMHpLcUYrSy9wSElnPT0tLUI2SWFiOHZXRlpqMmpteVloV3Zsb2c9PQ%3D%3D--3533fcf1e966b5c1e766dcc099caa6df4b5c284f; path=/; HttpOnly
X-Content-Type-Options:nosniff
X-Frame-Options:SAMEORIGIN
X-Request-Id:7863cf16-0162-4760-8719-d155202eca7a
X-Runtime:0.030455
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Request Headers
view source
Accept:*/*
Accept-Encoding:gzip, deflate
Accept-Language:tr-TR,tr;q=0.8,en-US;q=0.6,en;q=0.4
Connection:keep-alive
Content-Length:3126
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Host:localhost:3000
Origin:http://localhost:3000
Referer:http://localhost:3000/events
User-Agent:Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36
X-CSRF-Token:GT/gFRykJMorJu4yPLmLwwGz1EZIwlVSp8XWeO1SOvIVYITeJLAPa1YcYkJOswrkXqMUUFb/jk/DP8JtvLhQYQ==
X-Requested-With:XMLHttpRequest
Form Data
view source
view URL encoded
event_id:0
event:{"2015-05-06":{"available":"1","bind":0,"info":"","notes":"","price":"20","promo":"","status":"available"},"2015-05-07":{"available":"1","bind":0,"info":"","notes":"","price":"20","promo":"","status":"available"},"2015-05-13":{"available":"1","bind":0,"info":"","notes":"","price":"35","promo":"","status":"available"},"2015-05-14":{"available":"1","bind":0,"info":"","notes":"","price":"35","promo":"","status":"available"},"2015-05-15":{"available":"1","bind":0,"info":"","notes":"","price":"35","promo":"","status":"available"},"2015-05-16":{"available":"1","bind":0,"info":"","notes":"","price":"35","promo":"","status":"available"},"2015-05-17":{"available":"1","bind":0,"info":"","notes":"","price":"35","promo":"","status":"available"},"2015-05-20":{"available":"","bind":0,"info":"","notes":"","price":"","promo":"","status":"booked"},"2015-05-21":{"available":"","bind":0,"info":"","notes":"","price":"","promo":"","status":"booked"},"2015-05-22":{"available":"","bind":0,"info":"","notes":"","price":"","promo":"","status":"booked"},"2015-05-23":{"available":"","bind":0,"info":"","notes":"","price":"","promo":"","status":"booked"},"2015-05-24":{"available":"","bind":0,"info":"","notes":"","price":"","promo":"","status":"booked"},"2015-05-28":{"available":"1","bind":0,"info":"","notes":"","price":"25","promo":"","status":"available"},"2015-05-29":{"available":"1","bind":0,"info":"","notes":"","price":"25","promo":"","status":"available"},"2015-05-30":{"available":"1","bind":0,"info":"","notes":"","price":"25","promo":"","status":"available"},"2015-05-31":{"available":"1","bind":0,"info":"","notes":"","price":"25","promo":"","status":"available"}}
这是我的数据库架构；
ActiveRecord::Schema.define(version: 20150502145455) do
create_table "events", force: :cascade do |t|
t.string "title"
t.text "description"
t.datetime "start_time"
t.datetime "end_time"
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.string "status"
t.float "price"
t.float "promo"
t.integer "available"
t.text "info"
t.text "notes"
t.boolean "bind"
t.string "time"
t.string "p"
t.string "event_id"
end
end
编辑 1：
这是 Jquery 请求；
<script>
$(document).ready(function() {
$('#backend').DOPBackendBookingCalendarPRO({
'DataURL': '/events/load', #TO LOAD DATA
'SaveURL': '/events/save' #TO SAVE DATA
});
});
</script>
我已经分享了 load.js.erb 文件，因为它现在是硬编码的。但是 save.js.erb 文件是空的。当我创建 url 时，rails 要求我定义模板。但是 #create 动作没有模板，对吧？。
此日历是为 php 编写的，但我正尝试在 RoR 上使用它。写它的人，我不知道为什么，他们定义了 2 post urls 一个用于检索数据 一个用于发送数据。通常，其中之一应该是get，对吗？这就是为什么我在 routes.rb 中创建了 2 post url。无论如何。如果你能帮忙，我可以发送日历项目我不知道如何，但你看到他们的 backend.js 文件。也许我应该在那里改变一些东西。谢谢
在 backend.js 文件的顶部，我有 ;
Schedule = {},
后台..js文件中有这个函数加载数据
parseCalendarData:function(){
$.post(DataURL, {event_id:ID}, function(data){
console.log(typeof data); //THIS RETURNS OBJECT
if(typeof data === 'object') {
Schedule = data;
}
else {
data = $.trim(data).replace(/\/gi, '');
if (data != ''){
Schedule = JSON.parse(data);
}
}
methods.initCalendar();
});
},
保存数据之前，这里是设置提交数据的代码，应该是问题所在；
setData:function(){// Set submited data.
var y, m, d, noDays, key,
startDate, sYear, sMonth, sDay,
endDate, eYear, eMonth, eDay,
fromMonth, toMonth, fromDay, toDay,
availableValue = $('#DOPBCP_available').val(),
bindValue = 0,
infoValue = $('#DOPBCP_info').val().replace(/\n/gi, '<br />'),
notesValue = $('#DOPBCP_notes').val().replace(/\n/gi, '<br />'),
priceValue = $('#DOPBCP_price').val() != undefined ? $('#DOPBCP_price').val():'',
promoValue = $('#DOPBCP_promo').val() != undefined ? $('#DOPBCP_promo').val():'',
statusValue = $('#DOPBCP_status').val();
startDate = dayStartSelection < dayEndSelection ? dayStartSelection.split('_')[1]:dayEndSelection.split('_')[1];
endDate = dayStartSelection < dayEndSelection ? dayEndSelection.split('_')[1]:dayStartSelection.split('_')[1];
sYear = parseInt(startDate.split('-')[0], 10);
sMonth = parseInt(startDate.split('-')[1], 10);
sDay = parseInt(startDate.split('-')[2], 10);
eYear = parseInt(endDate.split('-')[0], 10);
eMonth = parseInt(endDate.split('-')[1], 10);
eDay = parseInt(endDate.split('-')[2], 10);
if (Schedule[methods.previousDay(startDate)] != undefined){
if (Schedule[methods.previousDay(startDate)]['bind'] == 1){
Schedule[methods.previousDay(startDate)]['bind'] = 0;
}
else if (Schedule[methods.previousDay(startDate)]['bind'] == 2){
Schedule[methods.previousDay(startDate)]['bind'] = 3;
}
}
if (Schedule[methods.nextDay(endDate)] != undefined){
if (Schedule[methods.nextDay(endDate)]['bind'] == 2){
Schedule[methods.nextDay(endDate)]['bind'] = 1;
}
else if (Schedule[methods.nextDay(endDate)]['bind'] == 3){
Schedule[methods.nextDay(endDate)]['bind'] = 0;
}
}
for (y=sYear; y<=eYear; y++){
fromMonth = 1;
if (y == sYear){
fromMonth = sMonth;
}
toMonth = 12;
if (y == eYear){
toMonth = eMonth;
}
for (m=fromMonth; m<=toMonth; m++){
noDays = new Date(y, m, 0).getDate();
fromDay = 1;
if (y == sYear && m == sMonth){
fromDay = sDay;
}
toDay = noDays;
if (y == eYear && m == eMonth){
toDay = eDay;
}
for (d=fromDay; d<=toDay; d++){
key = y+'-'+prototypes.timeLongItem(m)+'-'+prototypes.timeLongItem(d);
if ($('#DOPBCP_group').is(':checked')){
if (key == startDate){
bindValue = 1;
}
else if (key == endDate){
bindValue = 3;
}
else{
bindValue = 2;
}
}
//HERE IS THE PROBLEM I GUESS
Schedule[key] = {"available": availableValue,
"bind": bindValue,
"info": infoValue,
"notes": notesValue,
"price": priceValue,
"promo": promoValue,
"status": statusValue};
}
}
}
methods.saveData();
},
最后是js文件中的保存功能；
saveData:function(){// Save data.
var today = new Date(),
dd = prototypes.timeLongItem(today.getDate()),
mm = prototypes.timeLongItem(today.getMonth()+1),
yyyy = today.getFullYear();
for (var day in Schedule){
if (day < yyyy+'-'+mm+'-'+dd){
delete Schedule[day];
}
}
methods.hideForm();
methods.generateCalendar(StartYear, dayStartSelectionCurrMonth);
$.post(SaveURL, {event_id:ID, event:JSON.stringify(Schedule)}, function(data){});
},
PS：我已经在事件控制器中试过了；
def save
respond_to do |format|
@event = Event.new(event_params)
@event.save
format.html
format.json { render :json => @event, :content_type => 'application/json' }
end
end
但是内容类型没有改变。
编辑 2：
很抱歉给你添了那么多麻烦，但我真的很努力学习。我已将 $.post 更改为 $.ajax，并按照您的建议更改了控制器。现在它尝试 post 数组，我打算遍历哈希以获取数据并保存它。正如你所说，我可以遍历 params[:event]，因为它包含所有数据，对吧？因为多个数据它给出了一个 nil 错误，这就是为什么我想遍历它们（我改变了 #create 正如你所说);
NoMethodError in EventsController#create
undefined method `new' for nil:NilClass
我认为这是因为附表； （关键是 select 编辑日期）
Schedule[key] = {"date": key,
"available": availableValue,
"bind": bindValue,
"info": infoValue,
"notes": notesValue,
"price": priceValue,
"promo": promoValue,
"status": statusValue};
}
这是来自“网络”选项卡的内容；
Connection:Keep-Alive
Content-Length:94953
Content-Type:text/plain; charset=utf-8
Date:Sun, 03 May 2015 15:26:09 GMT
Server:WEBrick/1.3.1 (Ruby/2.2.1/2015-02-26)
X-Request-Id:1d59e6cd-726f-4eb0-afdf-92205c8a0974
X-Runtime:0.390420
Request Headers
view source
Accept:application/json, text/javascript, */*; q=0.01
Accept-Encoding:gzip, deflate
Accept-Language:tr-TR,tr;q=0.8,en-US;q=0.6,en;q=0.4
Connection:keep-alive
Content-Length:1687
Content-Type:application/x-www-form-urlencoded; charset=UTF-8
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Host:localhost:3000
Origin:http://localhost:3000
Referer:http://localhost:3000/events
User-Agent:Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36
X-CSRF-Token:BaHKI75O/nhl2kbiQDxSvJeZHiUAlTttTPGd0b/usf4J/q7ohlrV2RjgypIyNtObyIneMx6o4HAoC4nE7gTbbQ==
X-Requested-With:XMLHttpRequest
Form Data
view source
view URL encoded
event[2015-05-06][available]:1
event[2015-05-06][bind]:0
event[2015-05-06][info]:
event[2015-05-06][notes]:
event[2015-05-06][price]:20
event[2015-05-06][promo]:
event[2015-05-06][status]:available
event[2015-05-07][available]:1
event[2015-05-07][bind]:0
event[2015-05-07][info]:
event[2015-05-07][notes]:
event[2015-05-07][price]:20
event[2015-05-07][promo]:
event[2015-05-07][status]:available
event[2015-05-20][date]:2015-05-20
event[2015-05-20][available]:1
event[2015-05-20][bind]:0
event[2015-05-20][info]:
event[2015-05-20][notes]:
event[2015-05-20][price]:
event[2015-05-20][promo]:
event[2015-05-20][status]:available
event[2015-05-21][date]:2015-05-21
event[2015-05-21][available]:1
event[2015-05-21][bind]:0
event[2015-05-21][info]:
event[2015-05-21][notes]:
event[2015-05-21][price]:
event[2015-05-21][promo]:
event[2015-05-21][status]:available
event[2015-05-22][date]:2015-05-22
event[2015-05-22][available]:1
event[2015-05-22][bind]:0
event[2015-05-22][info]:
event[2015-05-22][notes]:
event[2015-05-22][price]:
event[2015-05-22][promo]:
event[2015-05-22][status]:available
event[2015-05-23][date]:2015-05-23
event[2015-05-23][available]:1
event[2015-05-23][bind]:0
event[2015-05-23][info]:
event[2015-05-23][notes]:
event[2015-05-23][price]:
event[2015-05-23][promo]:
event[2015-05-23][status]:available
编辑 3：
h = {"event"=>{"2015-05-06"=>{"available"=>"1", "bind"=>"0", "info"=>"", "notes"=>"", "price"=>"20", "promo"=>"", "status"=>"available"}, "2015-05-07"=>{"available"=>"1", "bind"=>"0", "info"=>"", "notes"=>"", "price"=>"20", "promo"=>"", "status"=>"available"}, "2015-05-18"=>{"date"=>"2015-05-18", "available"=>"1", "bind"=>"0", "info"=>"", "notes"=>"", "price"=>"30", "promo"=>"", "status"=>"available"}, "2015-05-19"=>{"date"=>"2015-05-19", "available"=>"1", "bind"=>"0", "info"=>"", "notes"=>"", "price"=>"30", "promo"=>"", "status"=>"available"}, "2015-05-20"=>{"date"=>"2015-05-20", "available"=>"1", "bind"=>"0", "info"=>"", "notes"=>"", "price"=>"30", "promo"=>"", "status"=>"available"}, "2015-05-21"=>{"date"=>"2015-05-21", "available"=>"1", "bind"=>"0", "info"=>"", "notes"=>"", "price"=>"30", "promo"=>"", "status"=>"available"}, "2015-05-22"=>{"date"=>"2015-05-22", "available"=>"1", "bind"=>"0", "info"=>"", "notes"=>"", "price"=>"30", "promo"=>"", "status"=>"available"}, "2015-05-23"=>{"date"=>"2015-05-23", "available"=>"1", "bind"=>"0", "info"=>"", "notes"=>"", "price"=>"30", "promo"=>"", "status"=>"available"}}}
h.each do |key, value|
puts key
value.each do |key2, value2|
puts key2
value2.each do |k, v|
puts k
puts v
end
end
end
类似代码的东西可以很好地获取键和值，但是我不知道如果我把它放到 controller.Then 中是否可行，我应该将它保存到数据库中。我当然认为必须有更简单的方法。但是我依赖于那个人写的日历js代码。再次抱歉要求太多。如果您能指导我，我将不胜感激。再次感谢
在我的控制器#create action 中，我可以迭代键和值；
现在我必须弄清楚如何保存它们
def create
h = params[:event]
h.each do |key, value|
puts key
value.each do |key2, value2|
puts key2
puts value2
end
end
end
您没有详细说明您实际上是如何发送 JSON 请求的，但是有两件事出错了：
您的保存操作需要一个带有键事件的散列：
{
event: {
title: "foo"
# more attributes ...
}
}
但是您正试图同时发送多个日期的参数。
event:{
"2015-05-06": {"available":"1","bind":0,"info":"","notes":"","price":"20","promo":"","status":"available"}
#... more events
}
你发送的请求也有错误的`Content-Type
您的请求已发送：
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
不是：
Content-Type: application/json; charset=utf-8;
differences in application/json and application/x-www-form-urlencoded
为响应问题的编辑而添加：
使用 jQuery.ajax 而不是 jQuery.post，它将为您将数据字符串化 - 这样 jQuery 将处理没有原生 JSON 的浏览器支持。
$.ajax(SaveURL, {
method: 'POST',
data: { event: Schedule },
dataType: 'json'
});
现在您正在发送正确的请求类型 jQuery 会将 post 数据合并到 params。
但这仍然没有解决 Schedule 包含多个事件的属性的问题。我将从创建一个接受单个事件参数的简单路由开始。在 Rails 约定中，我们称该操作为 create 而不是 save。
class EventsController
# ...
# POST /events
def create
@event.new(params[:event])
if (@event.save)
render json: @event, status: :created
else
# ... what do we do if validation fails?
end
end
# ...
private
def create_params
params.permit(:event).allow(:available, :bind, :info, :notes, :price, :promo, :status)
end
end
您可以通过将此添加到您的 config/routes.rb:
来为事件生成一整套 restful 路线
resources :events
生成以下路由：
Prefix Verb URI Pattern Controller#Action
events GET /events(.:format) events#index
POST /events(.:format) events#create
new_event GET /events/new(.:format) events#new
edit_event GET /events/:id/edit(.:format) events#edit
event GET /events/:id(.:format) events#show
PATCH /events/:id(.:format) events#update
PUT /events/:id(.:format) events#update
DELETE /events/:id(.:format) events#destroy
以你的技术水平，我不会费心去尝试创建一个控制器动作来一次创建多个事件，我不打算在这里指导如何去做，因为它会很长。
我有一个活动应用程序，我在其中使用日历。我已经为 #save 和 #load 数据创建了 2 个外部路由和控制器操作，并且我有 2 个模板。一个是 save.json.erb 另一个是 load.json.erb。现在，我已经硬编码了来自 load.json.erb 的负载数据，看起来像；
{"2015-05-06": {"available":"1",
"bind":0,
"info":"",
"notes":"",
"price":"20",
"promo":"",
"status":"available"
},
"2015-05-07": {"available":"1",
"bind":0,
"info":"",
"notes":"",
"price":"20",
"promo":"",
"status":"available"
}}
因此，它显示了日历上的硬编码数据。
我的问题是，当我按下提交时，它没有给出错误，但没有将它保存到数据库中。我也无法弄清楚强参数。我现在正在使用 permit! 来查看它是否保存到数据库中。也许我的事件模型及其列是错误的。因为我不知道它是什么 posts (integer, string etc..)
这是我的 events_controller
....
def load
end
def save
#THIS IS WRONG I SHOULD PUT SMTH ELSE
@event = Event.new
@event.save
end
def event_params
params.require(:event).permit!
end
当我 select 来自日历的数据按下提交时它会发送这个；
HEADER:
event_id:0
event:{"2015-05-06":{"available":"1","bind":0,"info":"","notes":"","price":"20","promo":"","status":"available"},"2015-05-07":{"available":"1","bind":0,"info":"","notes":"","price":"20","promo":"","status":"available"},"2015-05-27":{"available":"1","bind":0,"info":"demo","notes":"demodemodemo","price":"15","promo":"2","status":"available"}}
同样来自日志；这个数据是 JSON 吗？还是我必须在某处使用 JSON.parse？
Started POST "/events/save" for ::1 at 2015-05-02 18:39:42 +0300
Processing by EventsController#save as */* #HERE IT SENDS THE PARAMETERS, BUT I COULD NOT GET THEM
Parameters: {"event_id"=>"0", "event"=>"{\"2015-05-06\":{\"available\":\"1\",\"bind\":0,\"info\":\"\",\"notes\":\"\",\"price\":\"20\",\"promo\":\"\",\"status\":\"available\"},\"2015-05-07\":{\"available\":\"1\",\"bind\":0,\"info\":\"\",\"notes\":\"\",\"price\":\"20\",\"promo\":\"\",\"status\":\"available\"},\"2015-05-27\":{\"available\":\"1\",\"bind\":0,\"info\":\"demo\",\"notes\":\"demodemodemo\",\"price\":\"15\",\"promo\":\"2\",\"status\":\"available\"}}"}
(0.1ms) begin transaction
SQL (0.5ms) INSERT INTO "events" ("created_at", "updated_at") VALUES (?, ?) [["created_at", "2015-05-02 15:39:42.823906"], ["updated_at", "2015-05-02 15:39:42.823906"]]
(2.4ms) commit transaction
Rendered events/save.json.erb (0.1ms)
Completed 200 OK in 21ms (Views: 12.9ms | ActiveRecord: 3.0ms)
当我尝试时；
def save
@event = Event.new(event_params)
@event.save
end
def event_params
params.require(:event).permit!
end
它给出了 ;
的错误NoMethodError in EventsController#save
undefined method `permit!' for #<String:0x007fcbb99d24c0>
所以我认为它是 posted 作为字符串而不是散列。
对我来说，它发送到数据库的数据有问题，或者数据库无法为这些数据配置。由于 #save 操作一直有 @events = Event.new 它在数据库中创建新事件并保存 it.So 我必须获取 POSTed 数据但我无法获取这些参数。我想我必须获取 POSTed 数据，并且使用 for 循环我必须获取这些数据并将其保存到数据库中。找不到办法。希望有人帮忙
这里是完整的 HEADER:
Cache-Control:no-cache
Connection:Keep-Alive
Content-Length:0
Content-Type:application/json; charset=utf-8
Date:Sat, 02 May 2015 18:42:54 GMT
Server:WEBrick/1.3.1 (Ruby/2.2.1/2015-02-26)
Set-Cookie:_demo_session=Snh1Nm5CNWJzTHNITXp5SkRDejNmZzRXRkdoVm5SeEkwUW82WmE5QkFndThkeUdyTEdBK2s3ZVR1aEUxQXpGclpqR202WTIzSGkzNWtIQUdWZXFFeUtmSVpBbnZZNmJnN090YUxXS2c5eFFPVzZOaXJjTGJndGRsS0xBcUhaU0VlMFAvRVdtT05RMHpLcUYrSy9wSElnPT0tLUI2SWFiOHZXRlpqMmpteVloV3Zsb2c9PQ%3D%3D--3533fcf1e966b5c1e766dcc099caa6df4b5c284f; path=/; HttpOnly
X-Content-Type-Options:nosniff
X-Frame-Options:SAMEORIGIN
X-Request-Id:7863cf16-0162-4760-8719-d155202eca7a
X-Runtime:0.030455
X-Xss-Protection:1; mode=block
Request Headers
view source
Accept:*/*
Accept-Encoding:gzip, deflate
Accept-Language:tr-TR,tr;q=0.8,en-US;q=0.6,en;q=0.4
Connection:keep-alive
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Host:localhost:3000
Origin:http://localhost:3000
Referer:http://localhost:3000/events
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event_id:0
event:{"2015-05-06":{"available":"1","bind":0,"info":"","notes":"","price":"20","promo":"","status":"available"},"2015-05-07":{"available":"1","bind":0,"info":"","notes":"","price":"20","promo":"","status":"available"},"2015-05-13":{"available":"1","bind":0,"info":"","notes":"","price":"35","promo":"","status":"available"},"2015-05-14":{"available":"1","bind":0,"info":"","notes":"","price":"35","promo":"","status":"available"},"2015-05-15":{"available":"1","bind":0,"info":"","notes":"","price":"35","promo":"","status":"available"},"2015-05-16":{"available":"1","bind":0,"info":"","notes":"","price":"35","promo":"","status":"available"},"2015-05-17":{"available":"1","bind":0,"info":"","notes":"","price":"35","promo":"","status":"available"},"2015-05-20":{"available":"","bind":0,"info":"","notes":"","price":"","promo":"","status":"booked"},"2015-05-21":{"available":"","bind":0,"info":"","notes":"","price":"","promo":"","status":"booked"},"2015-05-22":{"available":"","bind":0,"info":"","notes":"","price":"","promo":"","status":"booked"},"2015-05-23":{"available":"","bind":0,"info":"","notes":"","price":"","promo":"","status":"booked"},"2015-05-24":{"available":"","bind":0,"info":"","notes":"","price":"","promo":"","status":"booked"},"2015-05-28":{"available":"1","bind":0,"info":"","notes":"","price":"25","promo":"","status":"available"},"2015-05-29":{"available":"1","bind":0,"info":"","notes":"","price":"25","promo":"","status":"available"},"2015-05-30":{"available":"1","bind":0,"info":"","notes":"","price":"25","promo":"","status":"available"},"2015-05-31":{"available":"1","bind":0,"info":"","notes":"","price":"25","promo":"","status":"available"}}
这是我的数据库架构；
ActiveRecord::Schema.define(version: 20150502145455) do
create_table "events", force: :cascade do |t|
t.string "title"
t.text "description"
t.datetime "start_time"
t.datetime "end_time"
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.string "status"
t.float "price"
t.float "promo"
t.integer "available"
t.text "info"
t.text "notes"
t.boolean "bind"
t.string "time"
t.string "p"
t.string "event_id"
end
end
编辑 1： 这是 Jquery 请求；
<script>
$(document).ready(function() {
$('#backend').DOPBackendBookingCalendarPRO({
'DataURL': '/events/load', #TO LOAD DATA
'SaveURL': '/events/save' #TO SAVE DATA
});
});
</script>
我已经分享了 load.js.erb 文件，因为它现在是硬编码的。但是 save.js.erb 文件是空的。当我创建 url 时，rails 要求我定义模板。但是 #create 动作没有模板，对吧？。
此日历是为 php 编写的，但我正尝试在 RoR 上使用它。写它的人，我不知道为什么，他们定义了 2 post urls 一个用于检索数据 一个用于发送数据。通常，其中之一应该是get，对吗？这就是为什么我在 routes.rb 中创建了 2 post url。无论如何。如果你能帮忙，我可以发送日历项目我不知道如何，但你看到他们的 backend.js 文件。也许我应该在那里改变一些东西。谢谢
在 backend.js 文件的顶部，我有 ;
Schedule = {},
后台..js文件中有这个函数加载数据
parseCalendarData:function(){
$.post(DataURL, {event_id:ID}, function(data){
console.log(typeof data); //THIS RETURNS OBJECT
if(typeof data === 'object') {
Schedule = data;
}
else {
data = $.trim(data).replace(/\/gi, '');
if (data != ''){
Schedule = JSON.parse(data);
}
}
methods.initCalendar();
});
},
保存数据之前，这里是设置提交数据的代码，应该是问题所在；
setData:function(){// Set submited data.
var y, m, d, noDays, key,
startDate, sYear, sMonth, sDay,
endDate, eYear, eMonth, eDay,
fromMonth, toMonth, fromDay, toDay,
availableValue = $('#DOPBCP_available').val(),
bindValue = 0,
infoValue = $('#DOPBCP_info').val().replace(/\n/gi, '<br />'),
notesValue = $('#DOPBCP_notes').val().replace(/\n/gi, '<br />'),
priceValue = $('#DOPBCP_price').val() != undefined ? $('#DOPBCP_price').val():'',
promoValue = $('#DOPBCP_promo').val() != undefined ? $('#DOPBCP_promo').val():'',
statusValue = $('#DOPBCP_status').val();
startDate = dayStartSelection < dayEndSelection ? dayStartSelection.split('_')[1]:dayEndSelection.split('_')[1];
endDate = dayStartSelection < dayEndSelection ? dayEndSelection.split('_')[1]:dayStartSelection.split('_')[1];
sYear = parseInt(startDate.split('-')[0], 10);
sMonth = parseInt(startDate.split('-')[1], 10);
sDay = parseInt(startDate.split('-')[2], 10);
eYear = parseInt(endDate.split('-')[0], 10);
eMonth = parseInt(endDate.split('-')[1], 10);
eDay = parseInt(endDate.split('-')[2], 10);
if (Schedule[methods.previousDay(startDate)] != undefined){
if (Schedule[methods.previousDay(startDate)]['bind'] == 1){
Schedule[methods.previousDay(startDate)]['bind'] = 0;
}
else if (Schedule[methods.previousDay(startDate)]['bind'] == 2){
Schedule[methods.previousDay(startDate)]['bind'] = 3;
}
}
if (Schedule[methods.nextDay(endDate)] != undefined){
if (Schedule[methods.nextDay(endDate)]['bind'] == 2){
Schedule[methods.nextDay(endDate)]['bind'] = 1;
}
else if (Schedule[methods.nextDay(endDate)]['bind'] == 3){
Schedule[methods.nextDay(endDate)]['bind'] = 0;
}
}
for (y=sYear; y<=eYear; y++){
fromMonth = 1;
if (y == sYear){
fromMonth = sMonth;
}
toMonth = 12;
if (y == eYear){
toMonth = eMonth;
}
for (m=fromMonth; m<=toMonth; m++){
noDays = new Date(y, m, 0).getDate();
fromDay = 1;
if (y == sYear && m == sMonth){
fromDay = sDay;
}
toDay = noDays;
if (y == eYear && m == eMonth){
toDay = eDay;
}
for (d=fromDay; d<=toDay; d++){
key = y+'-'+prototypes.timeLongItem(m)+'-'+prototypes.timeLongItem(d);
if ($('#DOPBCP_group').is(':checked')){
if (key == startDate){
bindValue = 1;
}
else if (key == endDate){
bindValue = 3;
}
else{
bindValue = 2;
}
}
//HERE IS THE PROBLEM I GUESS
Schedule[key] = {"available": availableValue,
"bind": bindValue,
"info": infoValue,
"notes": notesValue,
"price": priceValue,
"promo": promoValue,
"status": statusValue};
}
}
}
methods.saveData();
},
最后是js文件中的保存功能；
saveData:function(){// Save data.
var today = new Date(),
dd = prototypes.timeLongItem(today.getDate()),
mm = prototypes.timeLongItem(today.getMonth()+1),
yyyy = today.getFullYear();
for (var day in Schedule){
if (day < yyyy+'-'+mm+'-'+dd){
delete Schedule[day];
}
}
methods.hideForm();
methods.generateCalendar(StartYear, dayStartSelectionCurrMonth);
$.post(SaveURL, {event_id:ID, event:JSON.stringify(Schedule)}, function(data){});
},
PS：我已经在事件控制器中试过了；
def save
respond_to do |format|
@event = Event.new(event_params)
@event.save
format.html
format.json { render :json => @event, :content_type => 'application/json' }
end
end
但是内容类型没有改变。
编辑 2：
很抱歉给你添了那么多麻烦，但我真的很努力学习。我已将 $.post 更改为 $.ajax，并按照您的建议更改了控制器。现在它尝试 post 数组，我打算遍历哈希以获取数据并保存它。正如你所说，我可以遍历 params[:event]，因为它包含所有数据，对吧？因为多个数据它给出了一个 nil 错误，这就是为什么我想遍历它们（我改变了 #create 正如你所说);
NoMethodError in EventsController#create
undefined method `new' for nil:NilClass
我认为这是因为附表； （关键是 select 编辑日期）
Schedule[key] = {"date": key,
"available": availableValue,
"bind": bindValue,
"info": infoValue,
"notes": notesValue,
"price": priceValue,
"promo": promoValue,
"status": statusValue};
}
这是来自“网络”选项卡的内容；
Connection:Keep-Alive
Content-Length:94953
Content-Type:text/plain; charset=utf-8
Date:Sun, 03 May 2015 15:26:09 GMT
Server:WEBrick/1.3.1 (Ruby/2.2.1/2015-02-26)
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X-Runtime:0.390420
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Accept-Encoding:gzip, deflate
Accept-Language:tr-TR,tr;q=0.8,en-US;q=0.6,en;q=0.4
Connection:keep-alive
Content-Length:1687
Content-Type:application/x-www-form-urlencoded; charset=UTF-8
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Host:localhost:3000
Origin:http://localhost:3000
Referer:http://localhost:3000/events
User-Agent:Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36
X-CSRF-Token:BaHKI75O/nhl2kbiQDxSvJeZHiUAlTttTPGd0b/usf4J/q7ohlrV2RjgypIyNtObyIneMx6o4HAoC4nE7gTbbQ==
X-Requested-With:XMLHttpRequest
Form Data
view source
view URL encoded
event[2015-05-06][available]:1
event[2015-05-06][bind]:0
event[2015-05-06][info]:
event[2015-05-06][notes]:
event[2015-05-06][price]:20
event[2015-05-06][promo]:
event[2015-05-06][status]:available
event[2015-05-07][available]:1
event[2015-05-07][bind]:0
event[2015-05-07][info]:
event[2015-05-07][notes]:
event[2015-05-07][price]:20
event[2015-05-07][promo]:
event[2015-05-07][status]:available
event[2015-05-20][date]:2015-05-20
event[2015-05-20][available]:1
event[2015-05-20][bind]:0
event[2015-05-20][info]:
event[2015-05-20][notes]:
event[2015-05-20][price]:
event[2015-05-20][promo]:
event[2015-05-20][status]:available
event[2015-05-21][date]:2015-05-21
event[2015-05-21][available]:1
event[2015-05-21][bind]:0
event[2015-05-21][info]:
event[2015-05-21][notes]:
event[2015-05-21][price]:
event[2015-05-21][promo]:
event[2015-05-21][status]:available
event[2015-05-22][date]:2015-05-22
event[2015-05-22][available]:1
event[2015-05-22][bind]:0
event[2015-05-22][info]:
event[2015-05-22][notes]:
event[2015-05-22][price]:
event[2015-05-22][promo]:
event[2015-05-22][status]:available
event[2015-05-23][date]:2015-05-23
event[2015-05-23][available]:1
event[2015-05-23][bind]:0
event[2015-05-23][info]:
event[2015-05-23][notes]:
event[2015-05-23][price]:
event[2015-05-23][promo]:
event[2015-05-23][status]:available
编辑 3：
h = {"event"=>{"2015-05-06"=>{"available"=>"1", "bind"=>"0", "info"=>"", "notes"=>"", "price"=>"20", "promo"=>"", "status"=>"available"}, "2015-05-07"=>{"available"=>"1", "bind"=>"0", "info"=>"", "notes"=>"", "price"=>"20", "promo"=>"", "status"=>"available"}, "2015-05-18"=>{"date"=>"2015-05-18", "available"=>"1", "bind"=>"0", "info"=>"", "notes"=>"", "price"=>"30", "promo"=>"", "status"=>"available"}, "2015-05-19"=>{"date"=>"2015-05-19", "available"=>"1", "bind"=>"0", "info"=>"", "notes"=>"", "price"=>"30", "promo"=>"", "status"=>"available"}, "2015-05-20"=>{"date"=>"2015-05-20", "available"=>"1", "bind"=>"0", "info"=>"", "notes"=>"", "price"=>"30", "promo"=>"", "status"=>"available"}, "2015-05-21"=>{"date"=>"2015-05-21", "available"=>"1", "bind"=>"0", "info"=>"", "notes"=>"", "price"=>"30", "promo"=>"", "status"=>"available"}, "2015-05-22"=>{"date"=>"2015-05-22", "available"=>"1", "bind"=>"0", "info"=>"", "notes"=>"", "price"=>"30", "promo"=>"", "status"=>"available"}, "2015-05-23"=>{"date"=>"2015-05-23", "available"=>"1", "bind"=>"0", "info"=>"", "notes"=>"", "price"=>"30", "promo"=>"", "status"=>"available"}}}
h.each do |key, value|
puts key
value.each do |key2, value2|
puts key2
value2.each do |k, v|
puts k
puts v
end
end
end
类似代码的东西可以很好地获取键和值，但是我不知道如果我把它放到 controller.Then 中是否可行，我应该将它保存到数据库中。我当然认为必须有更简单的方法。但是我依赖于那个人写的日历js代码。再次抱歉要求太多。如果您能指导我，我将不胜感激。再次感谢
在我的控制器#create action 中，我可以迭代键和值； 现在我必须弄清楚如何保存它们
def create
h = params[:event]
h.each do |key, value|
puts key
value.each do |key2, value2|
puts key2
puts value2
end
end
end
您没有详细说明您实际上是如何发送 JSON 请求的，但是有两件事出错了：
您的保存操作需要一个带有键事件的散列：
{
event: {
title: "foo"
# more attributes ...
}
}
但是您正试图同时发送多个日期的参数。
event:{
"2015-05-06": {"available":"1","bind":0,"info":"","notes":"","price":"20","promo":"","status":"available"}
#... more events
}
你发送的请求也有错误的`Content-Type
您的请求已发送：
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
不是：
Content-Type: application/json; charset=utf-8;
differences in application/json and application/x-www-form-urlencoded
为响应问题的编辑而添加：
使用 jQuery.ajax 而不是 jQuery.post，它将为您将数据字符串化 - 这样 jQuery 将处理没有原生 JSON 的浏览器支持。
$.ajax(SaveURL, {
method: 'POST',
data: { event: Schedule },
dataType: 'json'
});
现在您正在发送正确的请求类型 jQuery 会将 post 数据合并到 params。
但这仍然没有解决 Schedule 包含多个事件的属性的问题。我将从创建一个接受单个事件参数的简单路由开始。在 Rails 约定中，我们称该操作为 create 而不是 save。
class EventsController
# ...
# POST /events
def create
@event.new(params[:event])
if (@event.save)
render json: @event, status: :created
else
# ... what do we do if validation fails?
end
end
# ...
private
def create_params
params.permit(:event).allow(:available, :bind, :info, :notes, :price, :promo, :status)
end
end
您可以通过将此添加到您的 config/routes.rb:
resources :events
生成以下路由：
Prefix Verb URI Pattern Controller#Action
events GET /events(.:format) events#index
POST /events(.:format) events#create
new_event GET /events/new(.:format) events#new
edit_event GET /events/:id/edit(.:format) events#edit
event GET /events/:id(.:format) events#show
PATCH /events/:id(.:format) events#update
PUT /events/:id(.:format) events#update
DELETE /events/:id(.:format) events#destroy
以你的技术水平，我不会费心去尝试创建一个控制器动作来一次创建多个事件，我不打算在这里指导如何去做，因为它会很长。