What is tagLister?
tagLister is a snippet which lists tags in order to generate tag-based navigation such as a tag cloud; the tags are unique values for a given Template Variable (one dedicated for tags). tagLister works in conjunction with several other related Snippets.
tagLister is used on the page where the unique tags should be displayed, and the getResourcesTag Snippet is used on the page that will display the links to the pages that were tagged by the given tag.
If you think about the various components here, we need tagLister to do 3 things: list the tags associated with a given post, list a tag cloud showing all available posts, and finally a page that will show all pages that have been tagged with a given tag. Those 3 tasks are handled by tagLister's 3 component Snippets.
Here are the 3 components you need to establish to make this work.
1. Show all Pages tagged with a given Term
Create a page dedicated to showing all pages tagged with a given term. On that page, place the getResourcesTag Snippet. It's more or less an extension of the getResources Snippet, so it shares most of the same arguments.
If you are tagging only resources in a certain folder, reference the folder's page ID in the &parents argument, otherwise use "0" to search the entire site.
[[!getResourcesTag? &parents=`0` &tagKey=`my_tags` &tpl=`result_tpl`]]
- &tagKey is the unique name of the Template Variable containing the tags
- &tpl is a chunk used to format each result (just like you would use for getResources)
Remember the page ID of this page: we will use it in the next step.
2. Show all tags for a given page
The next component here is showing all the given tags that appear on a given page. For this component, we rely on the toLinks Snippet. This will point to the page ID we created in step 1.
[[!toLinks? &items=`[[*my_tags]]` &target=`123`]]
The &items argument should include the goods: what has your page been tagged with? This should be the name of your Template Variable.
3. Display a Tag Cloud
The third common component here is to display a tag cloud listing all available tags. For this, we rely on the third of tagLister's bundled Snippets.
- A series of resources (e.g. blog posts) that utilize an auto-tag Template Variable
- A page dedicated to displaying all resources that have been tagged with a given value (i.e. a page for search results)
- MODX Revolution 2.0.0-RC-2 or later
- PHP5 or later
tagLister was written by Shaun McCormick and first released on June 14th, 2010.
Development and Bug Reporting
tagLister is stored and developed in GitHub, and can be found here:http://github.com/splittingred/tagLister
Bugs can be filed here: http://github.com/splittingred/tagLister/issues
tagLister has 1 snippet that displays a list of used tags, grabbed from the specified TV.
tagLister comes with three Snippets:
- tagLister - Lists most commonly used tags.
- getResourcesTag - For grabbing Resources filtered by tags.
- tolinks - For converting a comma-separated list into links.
Grab a list of tags specified in the TV 'tags', which are separated by commas, and make the links go to the home page:
Grab a list of tags specified in the TV 'blog-tags', which are separated by spaces, and make the links go to Resource ID 123:
[[!tagLister? &tv=`blog-tags` &tvDelimiter=` ` &target=`123`]]