From f1ae60f280b6a93c834d7aa4e81e85a15c1c2ce7 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Fri, 20 Jun 2025 12:46:44 +0000
Subject: [PATCH 2/3] Fix variable frontmatter error - handle both string and
 object formats for preview image fields

Co-authored-by: estruyf <2900833+estruyf@users.noreply.github.com>
---
 src/services/PagesParser.ts | 34 ++++++++++++++++++++++++----------
 1 file changed, 24 insertions(+), 10 deletions(-)

diff --git a/src/services/PagesParser.ts b/src/services/PagesParser.ts
index bd2e339f..87d7fc33 100644
--- a/src/services/PagesParser.ts
+++ b/src/services/PagesParser.ts
@@ -333,19 +333,32 @@ export class PagesParser {
 
           // Revalidate as the array could have been empty
           if (fieldValue) {
-            // Check if the value already starts with https - if that is the case, it is an external image
-            if (fieldValue.startsWith('http')) {
-              page.fmPreviewImage = fieldValue;
+            // Handle both string and object formats for the field value
+            let imageValue: string;
+            if (typeof fieldValue === 'string') {
+              imageValue = fieldValue;
+            } else if (typeof fieldValue === 'object' && fieldValue.src) {
+              // Handle object format like { src: "filename.jpg", title: "title" }
+              imageValue = fieldValue.src;
             } else {
-              let staticPath = join(wsFolder.fsPath, staticFolder || '', fieldValue);
+              // Skip processing if the value is neither a string nor an object with src
+              imageValue = null;
+            }
 
-              if (staticFolder === STATIC_FOLDER_PLACEHOLDER.hexo.placeholder) {
-                const crntFilePath = parseWinPath(filePath);
-                const pathWithoutExtension = crntFilePath.replace(extname(crntFilePath), '');
-                staticPath = join(pathWithoutExtension, fieldValue);
-              }
+            if (imageValue) {
+              // Check if the value already starts with https - if that is the case, it is an external image
+              if (imageValue.startsWith('http')) {
+                page.fmPreviewImage = imageValue;
+              } else {
+                let staticPath = join(wsFolder.fsPath, staticFolder || '', imageValue);
 
-              const contentFolderPath = join(dirname(filePath), fieldValue);
+                if (staticFolder === STATIC_FOLDER_PLACEHOLDER.hexo.placeholder) {
+                  const crntFilePath = parseWinPath(filePath);
+                  const pathWithoutExtension = crntFilePath.replace(extname(crntFilePath), '');
+                  staticPath = join(pathWithoutExtension, imageValue);
+                }
+
+                const contentFolderPath = join(dirname(filePath), imageValue);
 
               let previewUri = null;
               if (await existsAsync(staticPath)) {
@@ -367,6 +380,7 @@ export class PagesParser {
                 page['fmPreviewImage'] = previewPath || '';
               }
             }
+            }
           }
         }
       }

From a387d5eb891d9627d8a6e4374ff554c420e0602e Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Fri, 20 Jun 2025 12:48:08 +0000
Subject: [PATCH 3/3] Fix ContentType validation to handle non-string/non-array
 field values safely

Co-authored-by: estruyf <2900833+estruyf@users.noreply.github.com>
---
 src/helpers/ContentType.ts | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/helpers/ContentType.ts b/src/helpers/ContentType.ts
index 14438c26..2eec9fe1 100644
--- a/src/helpers/ContentType.ts
+++ b/src/helpers/ContentType.ts
@@ -408,7 +408,7 @@ export class ContentType {
    * @param parents
    * @returns
    */
-  public static getFieldValue(data: any, parents: string[]): string | string[] {
+  public static getFieldValue(data: any, parents: string[]): any {
     let fieldValue = [];
     let crntPageData = data;
 
@@ -575,7 +575,8 @@ export class ContentType {
         fieldValue === null ||
         fieldValue === undefined ||
         fieldValue === '' ||
-        fieldValue.length === 0 ||
+        (Array.isArray(fieldValue) && fieldValue.length === 0) ||
+        (typeof fieldValue === 'string' && fieldValue.length === 0) ||
         fieldValue === DefaultFieldValues.faultyCustomPlaceholder
       ) {
         emptyFields.push(fields);