嵌套模板未被渲染：Golang

huangapple
go评论100阅读模式
英文:

Nested template is not being rendered : Golang

问题

Perl中的应用程序通过SSI调用Golang中的标头来渲染横幅。在Golang中，标头模板{gold_shop_header.shtml}包含另一个模板{reputation_level_info.html}。问题是包含模板的内容没有被渲染。

参考代码：

gold_shop_header.shtml

{{define "Gold Banner"}}
.
.


{{ Loc .Lang "Reputation" }}
{{ template "reputation_level" . }}

.
.
{{ end }}

reputation_level_info.html

{{define "reputation_level"}}

{{ Loc .Lang "Reputation Levels" }}
  1.         <table class=" mt-10 fs-8 table-repsys" >
  2.             <tbody>
  3.                 <tr class="bold">
  4.                     <th>{{ Loc .Lang "Badges" }}</th>
  5.                     <th>{{ Loc .Lang "Name" }}</th>
  6.                     <th>{{ Loc .Lang "Points" }}</th>
  7.                 </tr>
  9.                 {{ range .RepLevels }}
  10.                 <tr class="{{ .Class}}">
  11.                     <td>
  12.                         <span class="badges-lib {{ .ImageName}}"></span>
  13.                     </td>
  15.                     {{ if eq .Badges "off" }}
  16.                     <td>
  17.                         {{ .Badges }}
  18.                     </td>
  19.                     <td>
  20.                         {{ if .UpperBound }}
  21.                             {{ .LowerBound }} - {{ .UpperBound }} Points
  22.                         {{ else }}
  23.                             &gt; {{ .LowerBound }} Points
  24.                         {{ end }}
  25.                     </td>
  26.                     {{ else }}
  27.                         <td colspan="2">{{ Loc ..Lang "Reputation Off" }}</td>
  28.                     {{ end }}
  29.                 </tr>
  30.                 {{ end }}
  31.             </tbody>
  32.         </table>
  33.     </div>
  34. </div>


{{ end }}

gen.go

var reputationTemplatePath = "/var/ssi/banner/gold/reputation_level_info.html"

_goldShopReputationTemplateBytes, err := ioutil.ReadFile(reputationTemplatePath)
if err != nil {
log.Panic("err", "error reading template", err)
}

var goldShopRepString = string(_goldShopReputationTemplateBytes)

var headerTemplatePath = "/var/ssi/banner/gold/gold_shop_header.shtml"

_goldShopHeaderTemplateBytes, err := ioutil.ReadFile(headerTemplatePath)
if err != nil {
log.Panic("err", "error reading template", err)
}

var goldShopHeaderString = string(_goldShopHeaderTemplateBytes)

var templatesString [] string

GoldShopHeaderTemplate, err = template.New("Gold Shop Header").Funcs(GetTemplateFunctionMap()).
Parse(goldShopHeaderString)
if err != nil {
log.Panic("err", "error parsing template", err)
}
GoldShopHeaderTemplate.Parse(goldShopRepString)

htmlBuffer := bytes.NewBufferString("")
template_exec_err := GoldShopHeaderTemplate.Execute(htmlBuffer, argsHeader)

请指出问题出在哪里。我对Golang不熟悉。包含的模板没有被渲染。另外，如果我删除{{ define "Gold Banner" }}语句，主模板会被渲染吗？如果包含这个语句，什么都不会被渲染。没有报错信息。

英文:

The application in perl calls the header in golang via SSI to render the banner.
In golang the header template {gold_shop_header.shtml} inculdes another template {reputation_level_info.html}. The issue is that the contents of the included template are not being rendered.

Code for reference:

  1. gold_shop_header.shtml
  2.  
  3.   {{define &quot;Gold Banner&quot;}}
  4.     .
  5.     .
  6.      &lt;div class=&quot;text-center mt-3&quot;&gt;
  7.         &lt;span class=&quot;fs-12 font-default cursor-default&quot;&gt;
  8.               {{ Loc .Lang &quot;Reputation&quot; }}
  9.               {{ template &quot;reputation_level&quot; . }}
  10.         &lt;/span&gt;
  11.      &lt;/div&gt;
  12.      .
  13.      .
  14.    {{ end }}
  17. reputation_level_info.html
  19.     {{define &quot;reputation_level&quot;}}
  20.     &lt;i class=&quot;icon-help-alt ml-5&quot;&gt;
  21.      &lt;div class=&quot;absolute text-left&quot; style=&quot;&quot;&gt;
  22.         &lt;div class=&quot;relative hover-reputation-lib&quot;&gt;
  23.             &lt;div class=&quot;relative w-100p&quot;&gt;
  24.                 &lt;div class=&quot;fs-18 mt-5&quot;&gt;{{ Loc .Lang &quot;Reputation Levels&quot; }}&lt;/div&gt;
  26.                 &lt;table class=&quot; mt-10 fs-8 table-repsys&quot; &gt;
  27.                     &lt;tbody&gt;
  28.                         &lt;tr class=&quot;bold&quot;&gt;
  29.                             &lt;th&gt;{{ Loc .Lang &quot;Badges&quot; }}&lt;/th&gt;
  30.                             &lt;th&gt;{{ Loc .Lang &quot;Name&quot; }}&lt;/th&gt;
  31.                             &lt;th&gt;{{ Loc .Lang &quot;Points&quot; }}&lt;/th&gt;
  32.                         &lt;/tr&gt;
  34.                         {{ range .RepLevels }}
  35.                         &lt;tr class=&quot;{{ .Class}}&quot;&gt;
  36.                             &lt;td&gt;
  37.                                 &lt;span class=&quot;badges-lib {{ .ImageName}}&quot;&gt;&lt;/span&gt;
  38.                             &lt;/td&gt;
  40.                             {{ if eq .Badges &quot;off&quot; }}
  41.                             &lt;td&gt;
  42.                                 {{ .Badges }}
  43.                             &lt;/td&gt;
  44.                             &lt;td&gt;
  45.                                 {{ if .UpperBound }}
  46.                                     {{ .LowerBound }} - {{ .UpperBound }} Points
  47.                                 {{ else }}
  48.                                     &amp;gt; {{ .LowerBound }} Points
  49.                                 {{ end }}
  50.                             &lt;/td&gt;
  51.                             {{ else }}
  52.                                 &lt;td colspan=&quot;2&quot;&gt;{{ Loc ..Lang &quot;Reputation Off&quot; }}&lt;/td&gt;
  53.                             {{ end }}
  54.                         &lt;/tr&gt;
  55.                         {{ end }}
  56.                     &lt;/tbody&gt;
  57.                 &lt;/table&gt;
  58.             &lt;/div&gt;
  59.         &lt;/div&gt;
  60.     &lt;/div&gt;
  61. &lt;/i&gt;
  62. {{ end }}
  67. gen.go
  68.   
  69.    var reputationTemplatePath = &quot;/var/ssi/banner/gold/reputation_level_info.html&quot;
  71.     _goldShopReputationTemplateBytes, err := ioutil.ReadFile(reputationTemplatePath)
  72.     if err != nil {
  73.       log.Panic(&quot;err&quot;, &quot;error reading template&quot;, err)
  74.     }
  76.     var goldShopRepString = string(_goldShopReputationTemplateBytes)
  78.     var headerTemplatePath = &quot;/var/ssi/banner/gold/gold_shop_header.shtml&quot;
  80.     _goldShopHeaderTemplateBytes, err := ioutil.ReadFile(headerTemplatePath)
  81.   	if err != nil {
  82.   		log.Panic(&quot;err&quot;, &quot;error reading template&quot;, err)
  83.   	}
  85.     var goldShopHeaderString = string(_goldShopHeaderTemplateBytes)
  87.     var templatesString [] string
  89.     GoldShopHeaderTemplate, err = template.New(&quot;Gold Shop  Header&quot;).Funcs(GetTemplateFunctionMap()).
  90.       Parse(goldShopHeaderString)
  91.      if err != nil {
  92.        log.Panic(&quot;err&quot;, &quot;error parsing template&quot;, err)
  93.      }
  94.     GoldShopHeaderTemplate.Parse(goldShopRepString)
  97. htmlBuffer := bytes.NewBufferString(&quot;&quot;)
  98. template_exec_err := GoldShopHeaderTemplate.Execute(htmlBuffer, argsHeader)

Please suggest what is wrong. I am new to golang. The included template is not being rendered. also, for the main template if I remove the {{ define " Gold Banner"}} statement does it get rendered, if I include this statement nothing gets rendered.
No error is reported.

答案1

得分: 1

你忘记在解析goldShopRepString后重新分配GoldShopHeaderTemplate。

这行代码：

  1. GoldShopHeaderTemplate.Parse(goldShopRepString)

应该改为：

  1. GoldShopHeaderTemplate, err := GoldShopHeaderTemplate.Parse(goldShopRepString)
英文:

You forgot to reassign the GoldShopHeaderTemplate after you parsed goldShopRepString

This line:

  1. GoldShopHeaderTemplate.Parse(goldShopRepString)

Should Be:

  1. GoldShopHeaderTemplate, err := GoldShopHeaderTemplate.Parse(goldShopRepString)

huangapple
  • 本文由 发表于 2016年11月30日 10:58:39
  • 转载请务必保留本文链接：https://go.coder-hub.com/40879481.html
  • go
  • go-html-template
匿名

发表评论

匿名网友

:?: :razz: :sad: :evil: :!: :smile: :oops: :grin: :eek: :shock: :???: :cool: :lol: :mad: :twisted: :roll: :wink: :idea: :arrow: :neutral: :cry: :mrgreen:

确定