Question

使用go和gin-gonic，我想发布一个包含两个标记字段的简单表单，然后将其保存到mongodb。

以下是表格：

void draw(double cx,double cf)
glColor3f(0.34f,0.34f,0.34f);
glPushMatrix();
glTranslated(0.0, cx, cy);
glRotated(-10, 1.0, 0.0, 0.0);
glutSolidTorus(OUTER_DIAL_RADIUS, OUTER_DIAL_RADIUS+30, 100, 200);
glPopMatrix();
end

处理程序是：

      <form action="/quotes/{{ .quote.Id.Hex }}" method="POST">    
          <input type="text" name="author" value="{{ .quote.Author }}">     
          <textarea name="body" rows="3">{{ .quote.Body }}</textarea>       

          <input name="tag" value="" >    
          <input name="tag" value="" >      

         <button type="submit">Submit</button>
  </form>

现在我的问题是func Create(c *gin.Context) { db := c.MustGet("db").(*mgo.Database) quote := models.Quote{} err := c.Bind(&quote) if err != nil { c.Error(err) return } //To debug fmt.Println("form post values\n") for t, v := range c.Request.Form["tag"] { fmt.Println(t, v) } //To debug fmt.Println(quote) err = db.C(models.CollectionQuote).Insert(quote) if err != nil { c.Error(err) } c.Redirect(http.StatusMovedPermanently, "/quotes") }：

form post values

和0 mytag1 1 mytag2会产生类似的结果：

quote details

报价模型是这样的：

{ObjectIdHex("") some-author somebody [] }

因此接收标签值但未绑定。我很想知道如何解决这个问题并从表单中获取标签？我看过杜松子酒guid，却找不到任何关于这种形式的信息。

Answer 1

问题出在模型结构中。我忘了将Incident Identifier: 4A2BA2B1-9174-410F-9D51-88A151884484 CrashReporter Key: TODO Hardware Model: iPhone8,1 Code Type: ARM-64 Parent Process: ??? [1] Date/Time: 2016-09-28 02:43:26 +0000 OS Version: iPhone OS 10.0.2 (14A456) Report Version: 104 Exception Type: SIGSEGV Exception Codes: SEGV_ACCERR at 0x0 Crashed Thread: 21 Thread 21 Crashed: 0 CFNetwork _CFURLRequestCopyContentDispositionEncodingFallbackArray + 48 1 CFNetwork HTTPProtocol::updateForHeader(__CFHTTPMessage*) + 260 2 CFNetwork HTTPProtocol::performHeaderReadPostProcessing(__CFHTTPMessage*, unsigned char) + 156 3 CFNetwork HTTPProtocol::performHeaderRead(__CFHTTPMessage*) + 992 4 CFNetwork HTTPProtocol::handleStreamEvent(__CFHTTPMessage*, dispatch_data_s*, CFStreamError const*) + 496 5 CFNetwork ___ZN15HTTPTransaction22_onqueue_invokeHandlerEv_block_invoke.64 + 60 6 libdispatch.dylib _dispatch_client_callout + 16 7 libdispatch.dylib _dispatch_block_invoke_direct + 376 8 CFNetwork RunloopBlockContext::_invoke_block(void const*, void*) + 36 9 CoreFoundation CFArrayApplyFunction + 68 10 CFNetwork RunloopBlockContext::perform() + 136 11 CFNetwork MultiplexerSource::perform() + 312 12 CFNetwork MultiplexerSource::_perform(void*) + 64 13 CoreFoundation __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 24 14 CoreFoundation __CFRunLoopDoSources0 + 524 15 CoreFoundation __CFRunLoopRun + 804 16 CoreFoundation CFRunLoopRunSpecific + 444 17 CFNetwork +[NSURLConnection(Loader) _resourceLoadLoop:] + 336 18 Foundation __NSThread__start__ + 1024 19 libsystem_pthread.dylib _pthread_body + 240 20 libsystem_pthread.dylib _pthread_body + 0 21 libsystem_pthread.dylib thread_start + 4添加到模型中。所以标签没有绑定。

何以go（gin）形式绑定切片值？

1 个答案: