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[DEPRECATED] The latest release of pongo2(v4). Contains the fixes listing in this iris-contrib repository too (finally).

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GoDoc Build Status

pongo2 is the django template syntax for Iris.

First impression of a template

<html><head><title>Our admins and users</title></head>
{# This is a short example to give you a quick overview of pongo2's syntax. #}

{% macro user_details(user, is_admin=false) %}
	<div class="user_item">
		<!-- Let's indicate a user's good karma -->
		<h2 {% if (user.karma >= 40) || (user.karma > calc_avg_karma(userlist)+5) %}
			class="karma-good"{% endif %}>
			
			<!-- This will call user.String() automatically if available: -->
			{{ user }}
		</h2>

		<!-- Will print a human-readable time duration like "3 weeks ago" -->
		<p>This user registered {{ user.register_date|naturaltime }}.</p>
		
		<!-- Let's allow the users to write down their biography using markdown;
		     we will only show the first 15 words as a preview -->
		<p>The user's biography:</p>
		<p>{{ user.biography|markdown|truncatewords_html:15 }}
			<a href="/user/{{ user.id }}/">read more</a></p>
		
		{% if is_admin %}<p>This user is an admin!</p>{% endif %}
	</div>
{% endmacro %}

<body>
	<!-- Make use of the macro defined above to avoid repetitive HTML code
	     since we want to use the same code for admins AND members -->
	
	<h1>Our admins</h1>
	{% for admin in adminlist %}
		{{ user_details(admin, true) }}
	{% endfor %}
	
	<h1>Our members</h1>
	{% for user in userlist %}
		{{ user_details(user) }}
	{% endfor %}
</body>
</html>

Documentation

For a documentation on how the templating language works you can head over to the Django documentation. pongo2 aims to be compatible with it.

You can access pongo2's API documentation on godoc.

Caveats

Filters

  • date / time: The date and time filter are taking the Golang specific time- and date-format (not Django's one) currently. Take a look on the format here.
  • stringformat: stringformat does not take Python's string format syntax as a parameter, instead it takes Go's. Essentially {{ 3.14|stringformat:"pi is %.2f" }} is fmt.Sprintf("pi is %.2f", 3.14).
  • escape / force_escape: Unlike Django's behaviour, the escape-filter is applied immediately. Therefore there is no need for a force_escape-filter yet.

Tags

  • for: All the forloop fields (like forloop.counter) are written with a capital letter at the beginning. For example, the counter can be accessed by forloop.Counter and the parentloop by forloop.Parentloop.
  • now: takes Go's time format (see date and time-filter).

Misc

  • not in-operator: You can check whether a map/struct/string contains a key/field/substring by using the in-operator (or the negation of it): {% if key in map %}Key is in map{% else %}Key not in map{% endif %} or {% if !(key in map) %}Key is NOT in map{% else %}Key is in map{% endif %}.

Add-ons, libraries and helpers

Official

  • pongo2-addons - Official additional filters/tags for pongo2 (for example a markdown-filter). They are in their own repository because they're relying on 3rd-party-libraries.

API-usage examples

Please see the documentation for a full list of provided API methods.

Please refer to kataras/iris/_examples/view

Contributors

This project exists thanks to all the people who contribute.

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[DEPRECATED] The latest release of pongo2(v4). Contains the fixes listing in this iris-contrib repository too (finally).

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