Enter a full Google Maps link by itself in any paragraph and this will automatically convert it to an embedded map.
ProcessWire Google Maps Textformatter
Looks for Google Maps URLs within paragraph (<p>...</p>) HTML tags and automatically converts them to embedded maps. Configurable options include embed type ("static" or "iframe"), API key, responsive embedding and Google Maps for Business settings.
How to install
See "How-To Install or Uninstall Modules" page at modules.processwire.com: http://modules.processwire.com/install-uninstall/.
How to use
Edit settings of any textarea field and enable "Google Maps" textformatter from Details tab. Recommended to be used with TinyMCE or CKEditor fields.
Notes about Google Maps for Business
Generated signature is based on specific URL and private cryptographic key.
In order to use your private key within this module you'll have to save it in module configuration settings, which are stored as plain text in your database. Google's documentation, on the other hand, explicitly states that this private key should not be "stored on any websites".
Use this feature at your own risk and only if you're fully aware of the risks involved!
Code used by this module for generating encoded signatures was adapted from Google's Extended URL signing gallery sample for PHP: http://gmaps-samples.googlecode.com/svn/trunk/urlsigning/UrlSigner.php-source.
Copyright (c) 2013, Teppo Koivula
Install and use modules at your own risk. Always have a site and database backup before installing new modules.