ruby-on-rails rails turbo帧明显更新,但浏览器窗口保持不变

m2xkgtsf  于 2023-03-04  发布在  Ruby
关注(0)|答案(1)|浏览(148)

下面的_receipt_number部分代码(为简洁起见,删除了HTML格式化标记)

<%= turbo_frame_tag :receipt_number do %>
      <%= t('scan') %> <%= t('cart.receipt_number') %>
      <h3><%= @cart.receipt_number %></h3>
      <% if @cart.receipt_number %>
        <%= button_to t('change'), clear_receipt_number_cart_path(id: @cart.id), class: 'button warning', method: :patch %>       
      <% end %>
<% end %>

在HTML中呈现为:

<turbo-frame id="receipt_number">
      scan receipt number
      <h3></h3>
</turbo-frame>

通过控制设备摄像头的JavaScript运行并处理扫描(这是示例的相关JavaScript代码)

let formData = new FormData();
let CodeParams = {
  code_data: result.text,
  id: <%= @cart.id %>
};
formData.append("code_json_data", JSON.stringify(CodeParams));
fetch("update_receipt_number", {
  method: "post", 
  format: "turbo_stream",
  body: formData,
  headers: {
    "X-CSRF-Token": document.querySelector("[name='csrf-token']").content,
  }
});
codeReader.reset();

通过控制器操作:

@cart.update(receipt_number: result['code_data'])
respond_to do |format|
  format.turbo_stream 
end

日志显示操作处理,但是没有为控制器预定义的格式并呈现所需的对象:

Started POST "/carts/6/update_receipt_number" for 127.0.0.1 at 2023-02-27 08:24:38 +0100
Processing by CartsController#update_receipt_number as */*

  Cart Update (9.6ms)  UPDATE "carts" SET "updated_at" = $1, "receipt_number" = $2 WHERE "carts"."id" = $3
 Rendering carts/update_receipt_number.turbo_stream.erb
  Rendered carts/_receipt_number.html.erb (Duration: 0.8ms | Allocations: 349)
  Rendered carts/update_receipt_number.turbo_stream.erb (Duration: 1.9ms | Allocations: 663)

turbo_stream. erb响应设置为:

<%= turbo_stream.replace :receipt_number do %>
  # replacing the partial with turbo
  <%= render partial: 'carts/receipt_number', locals: {cart: @cart} %>
<% end %>

并且控制台通知HTML通过线路XHRPOSThttp://localhost:3000/carts/6/update_receipt_number [HTTP/1.1 200 OK 357ms]接收,有效载荷如下

<turbo-stream action="replace" target="receipt_number"><template>
    # replacing the partial with turbo
    <turbo-frame id="receipt_number">
      scan receipt number
<h3>20230224T12423036270004131601843bbaa16909b1b07b2c32414fdea5092de2769aabaa2f610860c827f27fb386d4</h3>
        <form class="button_to" method="post" action="/carts/6/clear_receipt_number"><input type="hidden" name="_method" value="patch" autocomplete="off" /><button class="button warning" type="submit">change</button><input type="hidden" name="authenticity_token" value="DKVdhPK4UfmY_PzvA2amrvh9IejYEnyjHrJQANs0rlj6HHNAZjk3n6zxAgHRg0s27SWwgPZxMXOuLDiqSn6oQw" autocomplete="off" /></form>       
</turbo-frame>
</template></turbo-stream>

但浏览器窗口不会更新。
我不认为控制器缺少请求类型是原因,因为响应到达浏览器。那么为什么浏览器不刷新turbo_frame?* 我们尝试用div代替turbo_frame,导致相同的行为 *
我错过了什么?

093gszye

093gszye1#

由于是您自己发出fetch请求,因此也必须自己处理响应,换句话说,您已经调用了一个方法,现在必须对返回值做一些事情。
通常情况下,turbo 会处理细节,但值得庆幸的是,它确实公开了一个API,用于手动渲染流:

fetch("update_receipt_number", {
  method: "post",
  // format: "turbo_stream", // <= i don't think, this is a thing
  body: formData,
  headers: {
    "X-CSRF-Token": document.querySelector("[name='csrf-token']").content,
    // set Accept header to issue a proper TURBO_STREAM request
    "Accept": "text/vnd.turbo-stream.html"
  }
})
.then(response => response.text())
.then(text => Turbo.renderStreamMessage(text));
  • 网址:http:turbo.hotwired.dev/reference/streams#processing-stream-elements*
  • 一个月一次 *

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