New case note logic hook

Question

I want to fire an after save logic hook when a new case note is created and saved. As notes are used by multiple modules, I wandered the best place for the login hook 
 1. On the case module and run on new note 
 2 On the notes module when parent module is Cases 
 was thinking to check against the parent with an on save hook against parent->type == Case 
 "parent": {
 "_acl": {
 "fields": {
 "dri_workflow_template_id": {
 "create": "no",
 "write": "no",
 "license": "no"
 },
 "dri_workflow_template_name": {
 "create": "no",
 "write": "no",
 "license": "no"
 }
 },
 "_hash": "bf2bc9611a03b9289b43e6d828070ae2"
 },
 "id": "3456ce30-faf5-11ed-9bfb-0645eac4c674",
 "type": "Cases",
 "name": "CASE-88860"
 }, 
 
 just wandered the best place to run the hook from

john Fieldsend · Accepted Answer

Use an after_relationship_add logic hook 
 https://support.sugarcrm.com/documentation/sugar_developer/sugar_developer_guide_13.0/architecture/logic_hooks/module_hooks/after_relationship_add/#Arguments 
 The module and related_module arguments identify the modules that are being related, if you put the logic hook in Cases 
 module = Cases 
 related_module = Notes 
 if you put the logic hook on Notes then it will be the other way around: 
 module = Notes 
 related_module = Cases 
 Whichever you choose it will fire when notes and cases are related one to the other. 
 FrancescaS