init

scripts/check-db-structure.js

@@ -0,0 +1,97 @@
+// 檢查資料庫結構
+require('dotenv').config({ path: '.env.local' })
+const mysql = require('mysql2/promise')
+
+async function checkDatabaseStructure() {
+  const config = {
+    host: process.env.DB_HOST,
+    port: parseInt(process.env.DB_PORT),
+    database: process.env.DB_DATABASE,
+    user: process.env.DB_USERNAME,
+    password: process.env.DB_PASSWORD,
+  }
+
+  try {
+    const connection = await mysql.createConnection(config)
+    console.log('🔗 連接到 MySQL 資料庫...')
+
+    // 檢查所有表
+    console.log('\n📋 檢查資料庫表結構...')
+    const [tables] = await connection.execute(`
+      SELECT table_name 
+      FROM information_schema.tables 
+      WHERE table_schema = ?
+    `, [config.database])
+
+    console.log(`\n📊 找到 ${tables.length} 個表:`)
+    
+    for (const table of tables) {
+      const tableName = table.table_name
+      console.log(`\n🔍 表: ${tableName}`)
+      
+      if (!tableName) {
+        console.log('   ⚠️  表名為空，跳過')
+        continue
+      }
+      
+      // 檢查表結構
+      const [columns] = await connection.execute(`
+        SELECT column_name, data_type, is_nullable, column_default, column_key
+        FROM information_schema.columns 
+        WHERE table_schema = ? AND table_name = ?
+        ORDER BY ordinal_position
+      `, [config.database, tableName])
+      
+      console.log('  欄位:')
+      columns.forEach(col => {
+        const key = col.column_key ? ` (${col.column_key})` : ''
+        const nullable = col.is_nullable === 'YES' ? 'NULL' : 'NOT NULL'
+        console.log(`    - ${col.column_name}: ${col.data_type} ${nullable}${key}`)
+      })
+      
+      // 檢查外鍵
+      const [foreignKeys] = await connection.execute(`
+        SELECT 
+          constraint_name,
+          column_name,
+          referenced_table_name,
+          referenced_column_name
+        FROM information_schema.key_column_usage 
+        WHERE table_schema = ? 
+          AND table_name = ? 
+          AND referenced_table_name IS NOT NULL
+      `, [config.database, tableName])
+      
+      if (foreignKeys.length > 0) {
+        console.log('  外鍵:')
+        foreignKeys.forEach(fk => {
+          console.log(`    - ${fk.constraint_name}: ${fk.column_name} -> ${fk.referenced_table_name}.${fk.referenced_column_name}`)
+        })
+      }
+      
+      // 檢查索引
+      const [indexes] = await connection.execute(`
+        SELECT index_name, column_name, non_unique
+        FROM information_schema.statistics 
+        WHERE table_schema = ? AND table_name = ?
+        ORDER BY index_name, seq_in_index
+      `, [config.database, tableName])
+      
+      if (indexes.length > 0) {
+        console.log('  索引:')
+        indexes.forEach(idx => {
+          const unique = idx.non_unique === 0 ? 'UNIQUE' : ''
+          console.log(`    - ${idx.index_name}: ${idx.column_name} ${unique}`)
+        })
+      }
+    }
+
+    await connection.end()
+    console.log('\n✅ 資料庫結構檢查完成')
+
+  } catch (error) {
+    console.error('❌ 檢查資料庫結構失敗:', error)
+  }
+}
+
+checkDatabaseStructure()