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Pongo2 Templates

The Pongo2 Template Engine

Pongo2 is the successor of pongo, a Django-syntax like templating-language.

Dependencies

Install/update using go get (no dependencies required by pongo2):

go get -u github.com/flosch/pongo2

Setup

Pongo2 template files should start with a shebang (#!) on the first line. Alternatively, you may append the suffix *.pongo2.html to template file names.

Control case sensitivity by setting pongo2.tempate.caseinsensitive=false in app.conf to:

  • true (default) case insensitive
  • false compiled using lower case (default)

Currently, the Pongo2 template engine can’t access revel.TemplateFuncs (PR welcome). These functions are built-in:

  • field
  • radio
  • option
  • url
  • checkbox
  • append

Examples

Try pongo2 out in the pongo2 playground.

{%append "moreStyles" "ui-lightness/jquery-ui-1.7.2.custom.css"%}
{%append "moreScripts" "js/jquery-ui-1.7.2.custom.min.js"%}
{% include "header.html" %}

<h1>Book hotel</h1>

<form method="POST" action="{%url "Hotels.Book" hotel.HotelId%}">
  <p>
    <strong>Name:</strong> {{hotel.Name}}
  </p>
  <p>
    <strong>Address:</strong> {{hotel.Address}}
  </p>
  <p>
    <strong>City:</strong> {{hotel.City}}
  </p>
  <p>
    <strong>State:</strong> {{hotel.State}}
  </p>
  <p>
    <strong>Zip:</strong> {{hotel.Zip}}
  </p>
  <p>
    <strong>Country:</strong> {{hotel.Country}}
  </p>
  <p>
    <strong>Nightly rate:</strong> {{hotel.Price}}
  </p>
  {%with field = "booking.CheckInDate"|field %}
    <p class="{{field.ErrorClass}}">
      <strong>Check In Date:</strong>
      <input type="text" size="10" name="{{field.Name}}" class="datepicker" value="{{field.Flash}}">
      * <span class="error">{{field.Error}}</span>
    </p>
  {% endwith %}
  {%with field = "booking.CheckOutDate"|field %}
    <p class="{{field.ErrorClass}}">
      <strong>Check Out Date:</strong>
      <input type="text" size="10" name="{{field.Name}}" class="datepicker" value="{{field.Flash}}">
      * <span class="error">{{field.Error}}</span>
    </p>
  {% endwith %}
  <p>
    <strong>Room preference:</strong>
    {%with field = "booking.Beds"|field %}
    <select name="{{field.Name}}">
      {%option field "1" "One king-size bed"%}
      {%option field "2" "Two double beds"%}
      {%option field "3" "Three beds"%}
    </select>
    {% endwith %}
  </p>
  <p>
    <strong>Smoking preference:</strong>
    {%with field = "booking.Smoking"|field %}
      {%radio field "true"%} Smoking
      {%radio field "false"%} Non smoking
    {% endwith %}
  </p>
  {%with field = "booking.CardNumber"|field %}
    <p class="{{field.ErrorClass}}">
      <strong>Credit Card #:</strong>
      <input type="text" name="{{field.Name}}" size="16" value="{{field.Flash}}">
      * <span class="error">{{field.Error}}</span>
    </p>
  {% endwith %}
  {%with field = "booking.NameOnCard"|field %}
    <p class="{{field.ErrorClass}}">
      <strong>Credit Card Name:</strong>
      <input type="text" name="{{field.Name}}" size="16" value="{{field.Flash}}">
      * <span class="error">{{field.Error}}</span>
    </p>
  {% endwith %}
  <p>
    <strong>Credit Card Expiry:</strong>
    {%with field = "booking.CardExpMonth"|field %}
    <select name="{{field.Name}}">
      {%option field "1" "Jan"%}
      {%option field "2" "Feb"%}
      {%option field "3" "Mar"%}
      {%option field "4" "Apr"%}
      {%option field "5" "May"%}
      {%option field "6" "Jun"%}
      {%option field "7" "Jul"%}
      {%option field "8" "Aug"%}
      {%option field "9" "Sep"%}
      {%option field "10" "Oct"%}
      {%option field "11" "Nov"%}
      {%option field "12" "Dec"%}
    </select>
    {% endwith %}
    {%with field = "booking.CardExpYear"|field %}
    <select name="{{field.Name}}">
      {%option field "2008" "2008"%}
      {%option field "2009" "2009"%}
      {%option field "2010" "2010"%}
      {%option field "2011" "2011"%}
      {%option field "2012" "2012"%}
    </select>
    {% endwith %}
  </p>
  <p class="buttons">
    <input type="submit" value="Proceed">
    <a href="{%url "Hotels.Show" hotel.HotelId %}">Cancel</a>
  </p>
</form>

<script type="text/javascript" charset="utf-8">
$(function() {
  $(".datepicker").datepicker({dateFormat: 'yy-mm-dd'});
});
</script>

{% include "footer.html" %}
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