docs: document when error raising is skipped for strict loading

jordanmoore753 · jordanmoore753 · commit 8a2fd9c0abe2 · 2025-08-06T08:41:12.000-04:00
Strict loading error raising is skipped during validation, but this behavior was undocumented. This commit adds a note clarifying that validation contexts do not trigger strict loading violations, to help prevent confusion. Fixes: rails#55128
diff --git a/activerecord/lib/active_record/core.rb b/activerecord/lib/active_record/core.rb
@@ -690,6 +690,8 @@ def strict_loading?
     # Sets the record to strict_loading mode. This will raise an error
     # if the record tries to lazily load an association.
     #
+    # NOTE: Strict loading is disabled during validation in order to let the record validate its association.
+    #
     #   user = User.first
     #   user.strict_loading! # => true
     #   user.address.city

Original file line number	Diff line number	Diff line change
`@@ -690,6 +690,8 @@ def strict_loading?`
`690`	`690`	`# Sets the record to strict_loading mode. This will raise an error`
`691`	`691`	`# if the record tries to lazily load an association.`
`692`	`692`	`#`
	`693`	`+ # NOTE: Strict loading is disabled during validation in order to let the record validate its association.`
	`694`	`+ #`
`693`	`695`	`# user = User.first`
`694`	`696`	`# user.strict_loading! # => true`
`695`	`697`	`# user.address.city`