rails不呈現視圖

我正在處理一個 rails 專案，但我被卡住了，因為盡管在控制臺中看起來像渲染一樣，但 rails 沒有渲染視圖。我在 Trip 腳手架的 index.html.erb 中有這個表格

<%= form_with(url: filter_path, method: "get") do |form| %>
    <div class="field">
        <%= form.label :from %>
        <%= form.select :from, @places_arr %>
    </div>
    <div >
        <%= form.label :to %>
        <%= form.select :to, @places_arr %>
    </div>
    <div class="field">
        <%= form.label :departure_date %>
        <%= form.date_select :dep_date %>
    </div>
    <div >
        <%= form.label :departure_time %>
        <%= form.text_field :dep_time %>
    </div>
    <div class="field">
        <%= form.label :price %>
        <%= form.text_field :price %>
    </div>
    <div >
        <%= form.label :rating %>
        <%= form.text_field :rating %>
    </div>
    <div class="field">
        <%= form.label :model %>
        <%= form.select :model, @vehicles_arr  %> &nbsp
    </div>
    <div >
        <%= form.label :alimentation %>
        <%= form.select :alimentation, @vehicles_alimentation %>
    </div>
    <div class="btn btn-primary">
        <%= form.button :submit %>
    </div>
<% end %>

這是重定向到操作的路由：

get 'trips/filter', to: 'trips#filter', as: 'filter'

控制器中的動作“過濾器”實際上是空的

def filter
end

我認為當我點擊表單上的“提交”時，我應該被重定向到視圖 filter.html.erb，但這不會發生。沒發生什么事。

在控制臺出現這個：

Started GET "/trips/filter?from=7&to=7&[dep_date(1i)]=2021&[dep_date(2i)]=11&[dep_date(3i)]=23&dep_time=&price=&rating=&model=&alimentation=benzina&button=" for 127.0.0.1 at 2021-11-23 19:24:55  0100
Processing by TripsController#filter as JS
  Parameters: {"from"=>"7", "to"=>"7", "dep_date(1i)"=>"2021", "dep_date(2i)"=>"11", "dep_date(3i)"=>"23", "dep_time"=>"", "price"=>"", "rating"=>"", "model"=>"", "alimentation"=>"benzina", "button"=>""}
  User Load (0.3ms)  SELECT "users".* FROM "users" WHERE "users"."id" = $1 LIMIT $2  [["id", 1], ["LIMIT", 1]]
  ? app/controllers/application_controller.rb:8:in `current_user'
  Rendering layout layouts/application.html.erb
  Rendering trips/filter.html.erb within layouts/application
  Rendered trips/filter.html.erb within layouts/application (Duration: 0.0ms | Allocations: 4)
[Webpacker] Everything's up-to-date. Nothing to do
  Rendered layouts/_flash.html.erb (Duration: 0.0ms | Allocations: 12)
  CACHE User Load (0.0ms)  SELECT "users".* FROM "users" WHERE "users"."id" = $1 LIMIT $2  [["id", 1], ["LIMIT", 1]]
  ? app/controllers/application_controller.rb:8:in `current_user'
  CACHE User Load (0.0ms)  SELECT "users".* FROM "users" WHERE "users"."id" = $1 LIMIT $2  [["id", 1], ["LIMIT", 1]]
  ? app/controllers/application_controller.rb:8:in `current_user'
  CACHE User Load (0.0ms)  SELECT "users".* FROM "users" WHERE "users"."id" = $1 LIMIT $2  [["id", 1], ["LIMIT", 1]]
  ? app/controllers/application_controller.rb:8:in `current_user'
  Rendered layouts/_header.html.erb (Duration: 2.5ms | Allocations: 1458)
  Rendered layout layouts/application.html.erb (Duration: 15.0ms | Allocations: 10550)
Completed 200 OK in 18ms (Views: 15.5ms | ActiveRecord: 0.4ms | Allocations: 11518)

有人能幫我嗎？

uj5u.com熱心網友回復：

在 Rails 6.1 之前，form_with默認remote: true為 JS 并將發送 XHR 請求。你可以看到這就是發生的事情：

Processing by TripsController#filter as JS

如果js.erb模板丟失，Rails 實際上不會引發，只會隱式呈現 HTML 模板，該模板被發送回瀏覽器，瀏覽器完全不做任何事情。

如果你想發送一個普通的同步請求，你需要在表單中明確設定它：

<%= form_with(url: filter_path, method: "get", local: true) do |form| %>

如果您想購買整個Server Side Concerns噱頭，您需要創建一個js.erb模板。

# filter.js.erb
document.getElementById("#myid")
        .innerHTML = "<%= j render partial: 'some_partial' %>";

然而，Rails UJS（最終）在 Rails 7 中已經死了，所以它不是一個非常面向未來的方法。

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