更新到数据库

put_database.js

@@ -0,0 +1,19 @@
+import mysql from 'mysql2/promise'
+import fs from 'fs'
+
+export async function updateDatabase(list, field) {
+  const { mysql: config } = JSON.parse(fs.readFileSync('config.json', 'utf8'))
+  const conn = await mysql.createConnection(config)
+
+  await conn.query(`CREATE TEMPORARY TABLE temp_updates (id INT PRIMARY KEY, ${field} INT)`)
+
+  for (let i = 0; i < list.length; i += 10000) {
+    const values = list.slice(i, i + 10000).map(({ id, ...rest }) => [id, rest[field]])
+    await conn.query(`INSERT INTO temp_updates (id, ${field}) VALUES ?`, [values])
+  }
+
+  await conn.query(`UPDATE web_images t JOIN temp_updates tu ON t.id = tu.id SET t.${field} = tu.${field}`)
+  console.log('更新完成')
+  await conn.end()
+}
+