Merge pull request #34884 from overleaf/em-already-in-your-library

Library import: flag entries that are already in the user's library

GitOrigin-RevId: f3c92fb59283631e1a9e78d2e08a3a365981df45

tools/migrations/20260619120000_create_libraryReferences_match_indexes.mjs

@@ -0,0 +1,36 @@
+import Helpers from './lib/helpers.mjs'
+
+const tags = ['saas']
+
+// Partial indexes so docs without a given match token are not indexed. They
+// back the batch duplicate-detection query in findMatchingReferences.
+const newIndexes = [
+  {
+    key: { userId: 1, 'matchTokens.doi': 1 },
+    name: 'userId_1_matchTokens.doi_1',
+    partialFilterExpression: { 'matchTokens.doi': { $exists: true } },
+  },
+  {
+    key: { userId: 1, 'matchTokens.authorTitleYear': 1 },
+    name: 'userId_1_matchTokens.authorTitleYear_1',
+    partialFilterExpression: {
+      'matchTokens.authorTitleYear': { $exists: true },
+    },
+  },
+]
+
+const migrate = async client => {
+  const { db } = client
+  await Helpers.addIndexesToCollection(db.libraryReferences, newIndexes)
+}
+
+const rollback = async client => {
+  const { db } = client
+  await Helpers.dropIndexesFromCollection(db.libraryReferences, newIndexes)
+}
+
+export default {
+  tags,
+  migrate,
+  rollback,
+}