debug：添加测试方法

functions/api/debug/d1-query.js

@@ -28,13 +28,24 @@ export async function onRequest(context) {
                 // 查询前5条记录
                 var stmt2 = db.db.prepare('SELECT id, metadata, created_at FROM files ORDER BY created_at DESC LIMIT 5');
                 var fileResults = await stmt2.all();
-                results.sampleFiles = fileResults.map(function(row) {
-                    return {
-                        id: row.id,
-                        metadata: JSON.parse(row.metadata || '{}'),
-                        created_at: row.created_at
-                    };
-                });
+
+                // 检查结果格式
+                console.log('fileResults type:', typeof fileResults);
+                console.log('fileResults:', fileResults);
+
+                if (Array.isArray(fileResults)) {
+                    results.sampleFiles = fileResults.map(function(row) {
+                        return {
+                            id: row.id,
+                            metadata: JSON.parse(row.metadata || '{}'),
+                            created_at: row.created_at
+                        };
+                    });
+                } else {
+                    results.sampleFiles = [];
+                    results.fileResultsType = typeof fileResults;
+                    results.fileResultsValue = fileResults;
+                }
             } catch (error) {
                 results.error = 'Direct query failed: ' + error.message;
             }

functions/api/debug/d1-simple.js

@@ -0,0 +1,89 @@
+/**
+ * 简单的D1测试
+ */
+
+export async function onRequest(context) {
+    var env = context.env;
+    
+    try {
+        var results = {
+            hasDB: !!env.DB,
+            dbType: env.DB ? typeof env.DB : 'undefined'
+        };
+        
+        if (!env.DB) {
+            return new Response(JSON.stringify(results), {
+                headers: { 'Content-Type': 'application/json' }
+            });
+        }
+        
+        // 测试简单查询
+        try {
+            var stmt = env.DB.prepare('SELECT COUNT(*) as count FROM files');
+            var countResult = await stmt.first();
+            results.countQuery = {
+                success: true,
+                count: countResult.count,
+                resultType: typeof countResult
+            };
+        } catch (error) {
+            results.countQuery = {
+                success: false,
+                error: error.message
+            };
+        }
+        
+        // 测试all()查询
+        try {
+            var stmt2 = env.DB.prepare('SELECT id FROM files LIMIT 3');
+            var allResult = await stmt2.all();
+            results.allQuery = {
+                success: true,
+                resultType: typeof allResult,
+                isArray: Array.isArray(allResult),
+                length: allResult ? allResult.length : 'N/A',
+                sample: allResult
+            };
+        } catch (error) {
+            results.allQuery = {
+                success: false,
+                error: error.message
+            };
+        }
+        
+        // 测试带参数的查询
+        try {
+            var stmt3 = env.DB.prepare('SELECT id FROM files WHERE id LIKE ? LIMIT 2');
+            var paramResult = await stmt3.bind('cosplay/%').all();
+            results.paramQuery = {
+                success: true,
+                resultType: typeof paramResult,
+                isArray: Array.isArray(paramResult),
+                length: paramResult ? paramResult.length : 'N/A',
+                sample: paramResult
+            };
+        } catch (error) {
+            results.paramQuery = {
+                success: false,
+                error: error.message
+            };
+        }
+        
+        return new Response(JSON.stringify(results, null, 2), {
+            headers: {
+                'Content-Type': 'application/json'
+            }
+        });
+        
+    } catch (error) {
+        return new Response(JSON.stringify({
+            error: error.message,
+            stack: error.stack
+        }), {
+            status: 500,
+            headers: {
+                'Content-Type': 'application/json'
+            }
+        });
+    }
+}