我有一个使用rails 5.0.1的基本预订表单无效，我在提交时收到ArgumentError（无效日期）错误。表格采用开始和结束日期，并提交预订表。
日志显示：
Started GET "/preview?start_date=Wed+May+03+2017+00%3A00%3A00+GMT-0400+(EDT)&end_date=&post_id=3" for ::1 at 2017-04-19 21:47:37 -0400
Processing by ReservationsController#preview as */*
Parameters: {"start_date"=>"Wed May 03 2017 00:00:00 GMT-0400 (EDT)", "end_date"=>"", "post_id"=>"3"}
User Load (0.7ms) SELECT `users`.* FROM `users` WHERE `users`.`id` = 4 ORDER BY `users`.`id` ASC LIMIT 1
Completed 500 Internal Server Error in 56ms (ActiveRecord: 0.7ms)
ArgumentError (invalid date):
app/controllers/reservations_controller.rb:14:in `parse'
app/controllers/reservations_controller.rb:14:in `preview'
控制器：
class ReservationsController < ApplicationController
before_action :authenticate_user!, except: [:notify]
def preload
post = Post.find(params[:post_id])
today = Date.today
reservations = post.reservations.where("start_date >= ? OR end_date >= ?", today, today)
render json: reservations
end
def preview
start_date = Date.parse(params[:start_date])
end_date = Date.parse(params[:end_date])
output = {
conflict: is_conflict(start_date, end_date)
}
render json: output
end
def create
@reservation = current_user.reservations.create(reservation_params)
if @reservation
# send request to paypal
values = {
business: 'test@test.com',
cmd: '_xclick',
upload: 1,
notify_url: 'http://xyz.ngrok.io/notify',
amount: @reservation.total,
item_name: @reservation.post.tool_name,
item_number: @reservation.id,
quantity: '1',
return: 'http://xyz.ngrok.io/your_rentals'
}
redirect_to "https://www.sandbox.paypal.com/cgi-bin/webscr?" + values.to_query
else
redirect_to @reservation.post, alert: "Oops, something went wrong..."
end
end
def notify
params.permit!
status = params[:payment_status]
reservation = Reservation.find(params[:item_number])
if status == "Completed"
reservation.update_attributes status: true
else
reservation.destroy
end
render nothing: true
end
def your_rentals
@rentals = current_user.reservations
end
def your_reservations
@posts = current_user.posts
end
private
def reservation_params
params.require(:reservation).permit(:start_date, :end_date, :price, :total, :post_id)
end
def is_conflict(start_date, end_date)
post = Post.find(params[:post_id])
check = post.reservations.where("? < start_date AND end_date < ?", start_date, end_date)
check.size > 0? true : false
end
end
查看：
<%= form_for([@post, @post.reservations.new]) do |f| %>
<div class="row">
<div class="col-md-12 price_tag">
<span>$<%= @post.price %></span>
<span class="pull-right">Per Day</span>
</div>
</div>
<div class="row">
<div class="col-md-6">
<label>Begin Date</label>
<%= f.text_field :start_date, readonly: 'true', placeholder: 'Start Date', class: 'form-control' %>
</div>
<div class="col-md-6">
<label>Return Date</label>
<%= f.text_field :end_date, readonly: 'true', placeholder: 'End Date', class: 'form-control', disabled: true %>
</div>
</div>
<%= f.hidden_field :post_id, value: @post.id %>
<%= f.hidden_field :price, value: @post.price %>
<%= f.hidden_field :total, id: 'reservation_total' %>
<h4><span id="message"></span></h4>
<div id="preview" style="display: none">
<table class="reservation-table">
<tbody>
<tr>
<td>Day(s)</td>
<td><span id="reservation_days"></span></td>
</tr>
<tr>
<td>Total</td>
<td>$<span id="reservation_sum"></span></td>
</tr>
</tbody>
</table><br>
</div>
<br>
<%= f.submit "Book Now", id: "btn_book", class: "btn btn-primary wide", disabled: 'true' %>
<% end %>
<script>
function unavailable(date) {
dmy = date.getDate() + "-" + (date.getMonth()+1) + "-" + date.getFullYear();
return [$.inArray(dmy, unavailableDates) == -1];
}
$(function() {
unavailableDates = [];
$.ajax({
url: '/preload',
data: {'post_id': <%= @post.id %>},
dataType: 'json',
success: function(data) {
$.each(data, function(arrID, arrValue) {
for(var d = new Date(arrValue.start_date); d <= new Date(arrValue.end_date); d.setDate(d.getDate() + 1)) {
unavailableDates.push($.datepicker.formatDate('d-m-yy',d));
console.log(d);
}
});
$('#reservation_start_date').datepicker({
dateFormat: 'dd-mm-yy',
minDate: 0,
maxDate: '3m',
beforeShowDay: unavailable,
onSelect: function(selected) {
$('#reservation_end_date').datepicker("option", "minDate", selected);
$('#reservation_end_date').attr('disabled', false);
var start_date = $(this).datepicker('getDate');
var end_date = $('#reservation_end_date').datepicker('getDate');
var days = (end_date - start_date)/1000/60/60/24 + 1;
console.log(days)
var input = {
'start_date': start_date,
'end_date': end_date,
'post_id': <%= @post.id %>
}
$.ajax({
url: "/preview",
data: input,
sucess: function(data) {
if (data.conflict) {
$('#message').text("This date range is not available.");
$('#preview').hide();
$('#btn_book').attr('disabled', true);
console.log("end date negative");
} else {
$('#preview').show();
$('#btn_book').attr('disabled', false);
var total = days * <%= @post.price %>
$('#reservation_days').text(days);
$('#reservation_sum').text(total);
$('#reservation_total').val(total);
console.log(total);
}
}
}); // end ajax
}
});
$('#reservation_end_date').datepicker({
dateFormat: 'dd-mm-yy',
minDate: 0,
maxDate: '3m',
beforeShowDay: unavailable,
onSelect: function(selected) {
$('#reservation_start_date').datepicker("option", "maxDate", selected);
var start_date = $('#reservation_start_date').datepicker('getDate');
var end_date = $(this).datepicker('getDate');
var days = (end_date - start_date)/1000/60/60/24 + 1;
console.log(days)
var input = {
'start_date': start_date,
'end_date': end_date,
'post_id': <%= @post.id %>
}
$.ajax({
url: "/preview",
data: input,
sucess: function(data) {
if (data.conflict) {
$('#message').text("This date range is not available.");
$('#preview').hide();
$('#btn_book').attr('disabled', true);
} else {
$('#preview').show();
$('#btn_book').attr('disabled', false);
var total = days * <%= @post.price %>
$('#reservation_days').text(days);
$('#reservation_sum').text(total);
$('#reservation_total').val(total);
}
}
}); // end ajax
} // end onSelect
}); // end reservation_end_date
}
});
});
</script>
型号：
class Reservation < ApplicationRecord
belongs_to :user
belongs_to :post
end
答案 0 :(得分：3)
您在参数中传递了一个空白日期（"end_date"=>""），请检查您的日志：
Parameters: {"start_date"=>"Wed May 03 2017 00:00:00 GMT-0400 (EDT)", "end_date"=>"", "post_id"=>"3"}
因此当您执行end_date = Date.parse(params[:end_date])之类的操作时，您会收到错误，因为您正在尝试解析空字符串（或者更准确地说是invalid_date;请检查docs）
在使用params[:end_date]之前，您需要首先检查Date.parse是否包含正确的日期格式（或至少不是空白）。
答案 1 :(得分：0)
在您的控制器上使用
start_date = Date::strptime(reservation_params[:start_date], "%m/%d/%y")
end_date = Date::strptime(reservation_params[:end_date], "%m/%d/%y")