Question

我正在创建停车监控应用程序，特别是我对编程和Ruby上的全新操作。我找到了Gmaps的一个很好的扩展 - Gmaps4rails。

我有几个标记显示地图上的停车位置和拥挤情况（Class Place）。用户（类用户）应该能够点击标记，在这个小弹出窗口中应该有“跟随”按钮，这样用户就可以了解停车拥堵情况。

这是我的代码

模型关系

用户

has_many :parking_relationships, :foreign_key => "watcher_id",
                                 :dependent => :destroy
has_many :watching, :through => :parking_relationships, 
                                :source => :watched

放置（停车）

has_many :reverse_parking_relationships, :foreign_key => "watched_id",
                                         :dependent => :destroy,
                                         :class_name => "ParkingRelationship"
has_many :watchers, :through => :reverse_parking_relationships,
                                :source => :watcher

ParkingRelationship

belongs_to :watcher, :class_name => "User"
belongs_to :watched, :class_name => "Place"

位置控制器

def index
@user = current_user
@place = Place.find(params[:id])
@places = Place.all
 @json = Place.all.to_gmaps4rails do |place, marker|
  marker.infowindow render_to_string(:partial => "/places/watch_form", :locals => {       :object => place})
 end
respond_with @json

端

部分 _watch_form.html.erb

<% unless current_user?(@user) %>
 <div id="follow_form">
  <% if current_user.watching?(@place) %>
   <%= render 'watch' %>
  <% else %>
   <%= render 'unwatch' %>
  <% end %>
 </div>
<% end %>

部分 _watch.html.erb

<%= form_for current_user.parking_relationships.
                      build(:watched_id => @place.id) do |f| %>
 <div><%= f.hidden_field :watched_id %></div>
 <div class="actions"><%= f.submit "Watch" %></div>
<% end %>

部分 _unwatch.html.erb

<%= form_for current_user.parking_relationships.find_by_watched_id(@place),
         :html => { :method => :delete } do |f| %>
 <div class="actions"><%= f.submit "Unwatch" %></div>
<% end %>

数据库结构

Users name, email, etc
Places Name, address, latitude, longitude, gmaps, congestion
Parking_relationships watched_id, watcher_id

这不起作用。当我点击标记时，没有任何反应，并且“Watch”或“Unwatch”按钮不会显示。我建议这是因为@place在Places控制器的索引操作中。

UPDATE:
Here's the app on the web
GitRepositary https://github.com/ilyacherevkov/parking_bob
Map http://parking-bob.heroku.com/places
Watchers of the parking http://parking-bob.heroku.com/places/1,2,3 etc/watchers
Users watching parkings http://parking-bob.heroku.com/users/1,2,3 etc/watching

谢谢你们，伙计们

如何将实例变量传递给infowindow Gmaps4rails

0 个答案: