How-to: How to use dynamic data?
How to use dynamic data?
Step 1
Add a new plugin file in the plugins directory. A plugin is a Python script.
plugins
+--- data.py
Step 2
We want to add a new dynamic variable. The event is page_data_merged. This event is used after merging layouts and page data.
In this example, we add the current year to be added in the copyright.
from datetime import datetime
def page_data_merged(data: dict, args: dict) -> dict:
data['year'] = datetime.now().year
return data
In the footer block template, we now add the variable:
<p>Copyright @ {{ year }} Company</p>
Arguments
In the args argument, we find the current page path:
def page_data_merged(data: dict, args: dict) -> dict:
data['welcome'] = ''
if args['path'] == '/index.html':
data['welcome'] = 'Welcome to the homepage!'
return data
The data argument contains the merged json data for the page:
def page_data_merged(data: dict, args: dict) -> dict:
if 'meta_title' in data:
data['meta_title'] = 'Prefix - ' + data['meta_title']
return data
Debug
To visualize final page data, add the _page key before the page path in the URL:
http://localhost:1985/_page/index.html