feat(editor): support linked-doc in rich-text column (#9634)

close: BS-2345

blocksuite/affine/block-database/src/properties/rich-text/define.ts

@@ -1,6 +1,10 @@
+import type { AffineTextAttributes } from '@blocksuite/affine-shared/types';
 import { propertyType, t } from '@blocksuite/data-view';
+import type { DeltaInsert } from '@blocksuite/inline';
 import { Text } from '@blocksuite/store';
 
+import { HostContextKey } from '../../context/host-context.js';
+import { isLinkedDoc } from '../../utils/title-doc.js';
 import { type RichTextCellType, toYText } from '../utils.js';
 
 export const richTextColumnType = propertyType('rich-text');
@@ -16,7 +20,25 @@ export const richTextColumnModelConfig =
         value: new Text(value),
       };
     },
-    cellToJson: ({ value }) => value?.toString() ?? null,
+    cellToJson: ({ value, dataSource }) => {
+      const host = dataSource.contextGet(HostContextKey);
+      if (host) {
+        const collection = host.std.workspace;
+        const yText = toYText(value);
+        const deltas = yText.toDelta();
+        const text = deltas
+          .map((delta: DeltaInsert<AffineTextAttributes>) => {
+            if (isLinkedDoc(delta)) {
+              const linkedDocId = delta.attributes?.reference?.pageId as string;
+              return collection.getDoc(linkedDocId)?.meta?.title;
+            }
+            return delta.insert;
+          })
+          .join('');
+        return text;
+      }
+      return value?.toString() ?? null;
+    },
     cellFromJson: ({ value }) =>
       typeof value !== 'string' ? undefined : new Text(value),
     onUpdate: ({ value, callback }) => {