renders

package module
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Published: Aug 6, 2014 License: Apache-2.0 Imports: 16 Imported by: 0

README

renders

New template render of macaron framework

Macaron middleware/handler for rendering serialized JSON, XML, and HTML template responses.

Installation

go get github.com/macaron-contrib/renders

Examples

Check out the examples folder for some examples

Usage

render uses Go's html/template package to render html templates.

// main.go
package main

import (
	"github.com/Unknwon/macaron"

	"github.com/macaron-contrib/renders"
)

func main() {
	m := macaron.Classic()
	m.Use(renders.Renderer(
		renders.Options{
			Directory:  "templates",                // Specify what path to load the templates from.
			Extensions: []string{".tmpl", ".html"}, // Specify extensions to load for templates.
			//Funcs:           FuncMap,                    // Specify helper function maps for templates to access.
			Charset:         "UTF-8",     // Sets encoding for json and html content-types. Default is "UTF-8".
			IndentJSON:      true,        // Output human readable JSON
			IndentXML:       true,        // Output human readable XML
			HTMLContentType: "text/html", // Output XHTML content type instead of default "text/html"
		}))
	m.Get("/", func(r renders.Render) {
		r.HTML(200, "pages/index.html", map[string]interface{}{"Title": "Home"})
	})
	m.Get("/profile", func(r renders.Render) {
		r.HTML(200, "pages/profile.tmpl", map[string]interface{}{"Title": "Profile"})
	})

	m.Get("/map", func(r renders.Render) {
		r.HTML(200, "pages/map.html", map[string]interface{}{"Title": "Map"})
	})
	m.Run()
}

Options

renders.Renderer comes with a variety of configuration options:

// ...
m.Use(renders.Renderer(renders.Options{
  Directory: "templates", // Specify what path to load the templates from.
  Extensions: []string{".tmpl", ".html"}, // Specify extensions to load for templates.
  //Funcs: template.FuncMap{AppHelpers}, // Specify helper function maps for templates to access.
  Charset: "UTF-8", // Sets encoding for json and html content-types. Default is "UTF-8".
  IndentJSON: true, // Output human readable JSON
  IndentXML: true, // Output human readable XML
  HTMLContentType: "text/html", // Output XHTML content type instead of default "text/html"
}))
// ...
Extends

Just use the standard template keyword with a *.html file path. REMEMBER to pass the context to the parent template with the trailing dot (. }}).

index.html

{{ template "templates/layouts/fullwidth.html" . }}

{{ define "content" }}
    content of index to be inserted into the fullwidth template
{{ end }}

This will also work with multi-level support, e.g. index.html ---extends---> layouts/fullwidth.html ---extends---> base.html

Include

Automatically parse the right file just by writing the path to it

{{ define "content" }}
    content of the fullwidth template
    {{ template "includes/widgets/signup.html" . }}
{{ end }}
Overwriting define / default value

Any "define" of the same "template" down the extend chain will overwrite the former content This can be used to define default values for a {{ template }} like so

base.html

<!DOCTYPE html>
<html>
  <head>
    <title>{{ template "title" }}</title>
  </head>
</html>

{{ define "title" }}Default Title{{ end }}

profile.html

{{ template "templates/base.html" . }}
{{ define "title" }}Hello World{{ end }}

This would produce panic in std lib parsing but now it works by simply renaming the define's further down the chain not to interrupt the most specific one.

Authors

Documentation

Index

Constants

View Source
const (
	ContentType   = "Content-Type"
	ContentLength = "Content-Length"
	ContentBinary = "application/octet-stream"
	ContentJSON   = "application/json"
	ContentHTML   = "text/html"
	ContentXHTML  = "application/xhtml+xml"
	ContentXML    = "text/xml"
)

Variables

This section is empty.

Functions

func Load

func Load(opt Options) (map[string]*template.Template, error)

Load prepares and parses all templates from the passed basePath

func LoadWithFuncMap

func LoadWithFuncMap(opt Options) (map[string]*template.Template, error)

LoadWithFuncMap prepares and parses all templates from the passed basePath and injects a custom template.FuncMap into each template

func Renderer

func Renderer(options ...Options) macaron.Handler

Types

type Options

type Options struct {
	// Directory to load templates. Default is "templates"
	Directory string
	// Extensions to parse template files from. Defaults to [".tmpl"]
	Extensions []string
	// Funcs is a slice of FuncMaps to apply to the template upon compilation. This is useful for helper functions. Defaults to [].
	Funcs template.FuncMap
	// Appends the given charset to the Content-Type header. Default is "UTF-8".
	Charset string
	// Outputs human readable JSON
	IndentJSON bool
	// Outputs human readable XML
	IndentXML bool
	// Prefixes the JSON output with the given bytes.
	PrefixJSON []byte
	// Prefixes the XML output with the given bytes.
	PrefixXML []byte
	// Allows changing of output to XHTML instead of HTML. Default is "text/html"
	HTMLContentType string
}

Options is a struct for specifying configuration options for the render.Renderer middleware

type Render

type Render interface {
	// JSON writes the given status and JSON serialized version of the given value to the http.ResponseWriter.
	JSON(status int, v interface{})
	// HTML renders a html template specified by the name and writes the result and given status to the http.ResponseWriter.
	HTML(status int, name string, v interface{})
	// XML writes the given status and XML serialized version of the given value to the http.ResponseWriter.
	XML(status int, v interface{})
	// Data writes the raw byte array to the http.ResponseWriter.
	Data(status int, v []byte)
	// Error is a convenience function that writes an http status to the http.ResponseWriter.
	Error(status int)
	// Status is an alias for Error (writes an http status to the http.ResponseWriter)
	Status(status int)
	// Redirect is a convienience function that sends an HTTP redirect. If status is omitted, uses 302 (Found)
	Redirect(location string, status ...int)
	// Template returns the internal *template.Template used to render the HTML
	Template(name string) *template.Template
	// Header exposes the header struct from http.ResponseWriter.
	Header() http.Header
}

Directories

Path Synopsis
examples

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