Spelling Preferences Collection

spellingPreferences holds each user’s dictionary: the words the user added through “Add to dictionary” in the editor’s spell check. One document per user. web owns it, without a Mongoose schema; the code is services/web/app/src/Features/Spelling/LearnedWordsManager.mjs.

Fields

Field	Type	Meaning	Source
_id	ObjectId	Document id, created by the upsert.	LearnedWordsManager.mjs:21-31
token	String	The user’s id. The spelling routes pass the id of the logged-in user (SessionManager.getLoggedInUserId), despite the name.	LearnedWordsManager.mjs:23
learnedWords	Array of String	The words the user added.	LearnedWordsManager.mjs:26

Who Writes It

Code	What it does
LearnedWordsManager.mjs:13-32 (learnWord)	POST /spelling/learn (services/web/app/src/router.mjs:1037-1041, services/web/app/src/Features/Spelling/SpellingController.mjs:45-58): $addToSet the word, with upsert. Refuses when the list would grow past Settings.maxDictionarySize bytes.
LearnedWordsManager.mjs:38-47 (unlearnWord)	POST /spelling/unlearn (router.mjs:1043-1047, SpellingController.mjs:66-79): $pull the word.
LearnedWordsManager.mjs:84-86 (deleteUsersLearnedWords)	Deletes the document. Its only wrapper, SpellingHandler.deleteUserDictionary (services/web/app/src/Features/Spelling/SpellingHandler.mjs:24-26), has no caller in web or its modules.

Who Reads It

Code	What it does
LearnedWordsManager.mjs:52-67 (getLearnedWords)	Returns the words without duplicates.
services/web/app/src/Features/Project/ProjectController.mjs:671	Sends the dictionary to the editor when a project opens (SpellingHandler.getUserDictionary).

Indexes

Name	Keys	Options	Migration
token	{ token: 1 }		tools/migrations/20190912145027_create_spellingPreferences_indexes.mjs

Notes

• The index is not unique; the upsert on token keeps one document per user.
• Deleting a user does not delete this document.