Template Functions

Template Functions

Beego supports custom template functions but it must be set as below before web.Run():

func hello(in string)(out string){
	out = in + "world"
	return
}

web.AddFuncMap("hi",hello)

Then you can use these functions in template:

{{.Content | hi}}

Here are Beego’s built-in template functions:

• dateformat

  Format time, return string. {{dateformat .Time “2006-01-02T15:04:05Z07:00”}}

• date

  This is similar to date function in PHP. It can easily return time by string {{date .T “Y-m-d H:i:s”}}

• compare

  Compare two objects. If they are the same return true otherwise return false. {{compare .A .B}}

• substr

  Return sub string. supports UTF-8 string. {{substr .Str 0 30}}

• html2str

  Parse html to string by removing tags like script and css and return text. {{html2str .Htmlinfo}}

• str2html Parse string to HTML, no escaping. {{str2html .Strhtml}}

• htmlquote

  Escaping html. {{htmlquote .quote}}

• htmlunquote

  Unescaping to html. {{htmlunquote .unquote}}

• renderform

  Generate form from StructTag. {{&struct | renderform}}

• assets_js

  Create a <script> tag from js src. {{assets_js src}}

• assets_css

  Create a <link> tag from css src. {{assets_css src}}

• config

  Get the value of AppConfig. {{config configType configKey defaultValue}}. configType must be String, Bool, Int, Int64, Float, or DIY

• map_get

  Get value of map by key

    // In controller
    Data["m"] = map[string]interface{} {
        "a": 1,
        "1": map[string]float64{
            "c": 4,
        },
    }
  
    // In view
    {{ map_get m "a" }} // return 1
    {{ map_get m 1 "c" }} // return 4
  

• urlfor

  Get the URL of a controller method

    {{urlfor "TestController.List"}}
  

  more details