#Deprecation notice This plugin is no longer maintained and may not work with Pico 1.0.

You should try this plugin: Pico-Tags

picotags

Adds page tagging functionality to Pico. Based on Pico Tags by Szymon Kaliski, but only uses the provided hooks and leaves the Pico core alone.

It gives you access to:

• The current page meta.tags array
• Each page.tags in the pages array
• The tag_list array of all used tags
• If on a /tag/ URL, the current_tag variable

##Installation

Place picotags.php file into the plugins directory.

##Usage

Add a 'Tags' attribute into the page meta:

/*
Title: My First Blog Post
Description: It's a blog post about javascript and php
Author: Dan Reeves
Robots: index,follow

Date: 2013/10/02
Tags: js,javascript,php
*/

You can now access both the current page meta.tags and each page.tags in the pages array:

{% if is_front_page %}
<!-- front page -->
    {% for page in pages %}
        {% if page.date %}
            <article>
                <h2><a href="{{ page.url }}">{{ page.title }}</a></h2>
                <p class="meta">Tags:
                    {% for tag in page.tags %}
                        <a href="{{ base_url }}/tag/{{ tag }}">#{{ tag }}</a>
                    {% endfor %}
                </p>
                {{ page.excerpt }}
            </article>
        {% endif %}
    {% endfor %}
<!-- front page -->
{% elseif meta.tags %}
<!-- blog post -->
    <article>
        <h2>{{ meta.title }}</h2>
        <p class="meta">Tags:
            {% for tag in meta.tags %}
                <a href="{{ base_url }}/tag/{{ tag }}">#{{ tag }}</a>
            {% endfor %}
        </p>
        {{ content }}
    </article>
<!-- blog post -->

{% elseif pages and meta.title != 'Error 404' %}
<!-- tags page -->
    All tags:
    <ul class="tags">
        {% for tag in tag_list %}
        <li><a href="/tag/{{ tag }}">#{{ tag }}</a></li>
        {% endfor %}
    </ul>
    <p>Posts tagged <a href="{{ page.url }}">#{{ current_tag }}</a>:</p>
    {% for page in pages %}
        {% if page.date %}
            <article>
                <h2><a href="{{ page.url }}">{{ page.title }}</a></h2>
                <p class="meta">Posted on {{ page.date_formatted }} by {{ page.author }}
                    <span class="tags"><br />Tags:
                        {% for tag in page.tags %}
                                <a href="{{ base_url }}/tag/{{ tag }}">#{{ tag }}</a>
                        {% endfor %}
                    </span>
                </p>
                {{ page.content }}
            </article>
        {% endif %}
    {% endfor %}
<!-- tags page -->
{% else %}
<!-- single page -->
<article>
    <h2>{{ meta.title }}</h2>
    {{ content }}
</article>
<!-- single page -->
{% endif %}

If you encounter any trouble with this template structure, you might want to try this one:

{% if is_front_page %}

    FRONT PAGE

{% elseif current_page is not empty %}

    {% if meta.tags is not empty %}

        <!-- BLOG POSTS WITH TAGS -->
        <article>
            <h2>{{ meta.title }}</h2>
            <p class="meta">Tags:
                {% for tag in meta.tags %}
                    <a href="{{ base_url }}/tag/{{ tag }}">#{{ tag }}</a>
                {% endfor %}
            </p>
            {{ content }}
        </article>

    {% else %}

        <!-- BLOG POSTS WITHOUT TAGS -->
        <article>
            <h2>{{ meta.title }}</h2>
            {{ content }}
        </article>

    {% endif %}

{% elseif current_page is empty %}

    {% if meta.title != 'Error 404' %}

        <!-- TAG PAGES : list of blog posts tagged with #... -->

        All tags:
        <ul class="tags">
            {% for tag in tag_list %}
            <li><a href="/tag/{{ tag }}">#{{ tag }}</a></li>
            {% endfor %}
        </ul>
        <p>Posts tagged <a href="{{ page.url }}">#{{ current_tag }}</a>:</p>
        {% for page in pages %}
            {% if page.date %}
                <article>
                    <h2><a href="{{ page.url }}">{{ page.title }}</a></h2>
                    <p class="meta">Posted on {{ page.date_formatted }} by {{ page.author }}
                        <span class="tags"><br />Tags:
                            {% for tag in page.tags %}
                                    <a href="{{ base_url }}/tag/{{ tag }}">#{{ tag }}</a>
                            {% endfor %}
                        </span>
                    </p>
                    {{ page.content }}
                </article>
            {% endif %}
        {% endfor %}

    {% endif %}
{% endif %}

Personal template for tag pages

You can choose to use a personal template for tag pages instead of using conditions in your theme index.html.

First, you have to add a setting to your config.php:

$config['ptags_template'] = 'YOUR_TAG_TEMPLATE';

Then, you have to create a "YOUR_TAG_TEMPLATE.html" file inside your theme folder ; in this template page, you can simply add in the <body> section something like that:

<h1>Posts tagged <a href="{{ page.url }}">#{{ current_tag }}</a></h1>
{% for page in pages %}          
    <article>
        <h2><a href="{{ page.url }}">{{ page.title }}</a></h2>
        <p class="meta">
            <span class="tags"><br />Tags :
                {% for tag in page.tags %}
                    <a href="{{ base_url }}/tag/{{ tag }}">#{{ tag }}</a>
                {% endfor %}
            </span>
        </p>
        {{ page.excerpt }}
    </article>
{% endfor %}
<h1>All tags :</h1>
    <ul>
        {% for tag in tag_list %}
            <li><a href="/tag/{{ tag }}">#{{ tag }}</a></li>
        {% endfor %}
    </ul>

Alphabetically sorted list

In your config.php :

$config['ptags_sort'] = true;

Multicolumn output

For a two columns output :

• in your config.php :

$config['ptags_nbcol'] = 2;

• in your template output :

<ul>
    {% for tag in tag_list_0 %}
        <li><a href="/tag/{{ tag }}">#{{ tag }}</a></li>
    {% endfor %}
</ul>
<ul>
    {% for tag in tag_list_1 %}
        <li><a href="/tag/{{ tag }}">#{{ tag }}</a></li>
    {% endfor %}
</ul>

Adding meta keywords to <head>

{% if meta.tags %}
    <meta name="keywords" content="{{ meta.tags | join(',') }}">
{% endif %}

Removing from the tags list the ones that are used in only one page

In your config.php :

$config['ptags_delunique'] = true;

Excluding pages from the tags list

In your config.php, you can use the setting ptags_exclude and specify the pages you want to exclude from the tag_list through an array in which you can associate multiple values for a meta type :

$config['ptags_exclude'] = array(
    'template' => 'category',
    'title' => 'GCweb, qu\'est-ce que c\'est ?|CV',
    'category' => 'Maîtrise Sciences du langage|Master recherche Sciences du langage|Master professionnel Édition'
);

WARNING

• you have to use the pipe (|) as a separator;
• you have to escape single quotes with a backslash;
• be careful, in some case you can obtain 404 error when there is no articles to display in a tag page.