Update current Application Context
Application Context update
Lucee allows you to update the existing application context, per request as defined for example in [cookbook-application-context-basic].
This does not affect any other request, you are only changing the application settings for the current request.
For example, add a per-application mapping:
<!--- creates a mapping with name "/test" that is pointing to the current directory --->
<cfapplication action="update" mappings="# {'/test': getDirectoryFromPath(getCurrentTemplatePath())} #">
This example doesn't extend the existing application mappings with this new one, it replaces them. So when you plan to add a mapping, it's best to first read the existing mappings with help of the function [function-getApplicationSettings] and update these mappings as follows:
<!--- read the existing per-application mappings --->
<cfset mappings = getApplicationSettings().mappings>
<!--- add a mapping with name "/test" to the mappings struct --->
<cfset mappings['/test'] = getDirectoryFromPath(getCurrentTemplatePath())>
<!--- add all mappings --->
<cfapplication action="update" mappings="#mappings#">
Of course, it's not only mappings you can update. [tag-application] lets you update all the settings you can do in the Application.cfc!