一段时间以来,我试图生成一个预订表,其中仅列出在同一预订表中选择的arrival
和departure
日期可用的房间。不幸的是,直到现在我还没有做到这一点。
我已经对先前的尝试提出了一个问题,但没有成功。 => https://stackoverflow.com/posts/59083421/edit
我现在正在寻找到达那里的其他方法。作为参考,请在下面找到我以前的尝试。
以前的尝试:总体思路
试图发送/接收AJAX。无法达到成功阶段,并且错误似乎在于AJAX调用期望/我正在发送的dataType(JS与JSON)。不幸的是,我不知道如何解决这个问题。
format.js
时,我的ajax调用未达到成功阶段render json: {:rooms => @rooms}
时,我没有到达hotels/rooms_availability.js.erb
文件,因此无法插入可用的房间。上次尝试:代码
reservations / new.html.erb
<%= simple_form_for [@hotel, @reservation] do |f|%>
<div class="col col-sm-3">
<%= f.input :arrival,
as: :string,
label:false,
placeholder: "From",
wrapper_html: { class: "inline_field_wrapper" },
input_html:{ id: "start_date"} %>
</div>
<div class="col col-sm-3">
<%= f.input :departure,
as: :string,
label:false,
placeholder: "From",
wrapper_html: { class: "inline_field_wrapper" },
input_html:{ id: "end_date"} %>
</div>
<div class="col col-sm-4">
<%= f.input :room_id, collection: @rooms %>
</div>
<%= f.button :submit, "Search", class: "create-reservation-btn"%>
<% end %>
reservations / new.html.erb的脚本
<script>
const checkIn = document.querySelector('#start_date');
const checkOut = document.querySelector('#end_date');
const checkInAndOut = [checkIn, checkOut];
checkInAndOut.forEach((item) => {
item.addEventListener('change', (event) => {
if ((checkIn.value.length > 0) && (checkOut.value.length > 0)){
checkAvailability();
}
})
})
function checkAvailability(){
$.ajax({
url: "<%= rooms_availability_hotel_path(@hotel) %>" ,
dataType: 'json',
type: "POST",
data: `arrival=${start_date.value}&departure=${end_date.value}`,
success: function(data) {
console.log('succes')
console.log(data);
},
error: function(response) {
console.log('failure')
console.log(response);
}
});
};
</script>
hotels_controller
def rooms_availability
hotel = Hotel.includes(:rooms).find(params[:id])
arrival = Date.parse room_params[:arrival]
departure = Date.parse room_params[:departure]
time_span = arrival..departure
@unavailable_rooms = Room.joins(:reservations).where(reservations: {hotel: hotel}).where("reservations.arrival <= ? AND ? >= reservations.departure", arrival, departure).distinct
@hotel_cats = hotel.room_categories
@hotel_rooms = Room.where(room_category: hotel_cats)
@rooms = hotel_rooms - @unavailable_rooms
render json: {:rooms => @rooms}
#respond_to do |format|
#format.js
#end
end
def room_params
params.permit(:arrival, :departure, :format, :id)
end
hotels / rooms_availability.js.erb
var selectList = document.getElementById('reservation_room_id')
function empty() {
selectList.innerHTML = "";
}
empty();
<% unless @rooms.empty? %>
<% @rooms.each do |room|%>
selectList.insertAdjacentHTML('beforeend', '<option value="<%= room.id %>"><%= room.name %></option>');
<% end %>
<% end %>