login ok

2025-09-11 20:39:52 +00:00
parent d4243685b6
commit 8cfa7f41e4
3 changed files with 155 additions and 26 deletions
@@ -0,0 +1,70 @@
+import mysql from 'mysql2/promise'
+
+export class MySQLClient {
+    constructor(db, kal = 0) {
+        this.db = db
+        this.lastInsertedId = -1
+        this.kalIntervalId = null
+        if(kal > 0){
+            this.kalIntervalId = setInterval(() => {
+                this.db.query('SELECT 1')
+            }, 1000 * kal);
+        }
+    }
+    
+    async close(){
+        if(this.db) await this.db.end()
+        if(this.kalIntervalId) clearInterval(this.kalIntervalId)
+        this.db = null
+    }
+
+    escape(x) { return(mysql.escape(x)) }
+
+    async execute(query, values = []){
+        if(!this.db) return([])
+        if(query.search(RegExp('(^|;) *(INSERT|REPLACE) +INTO','i'))>-1) this.lastInsertedId = -1
+        const [result] = await this.db.execute(query, values)
+    
+        if('insertId' in result) {
+            this.lastInsertedId = result.insertId
+        } 
+        return(result)
+    }
+
+    /* Makes a multi-line VALUES insert, with values for an array of objects { columns:value }
+    */
+    async InsertObjectsStatement(table, rows){
+        this.lastInsertedId = -1
+        if((!this.db) || (rows.length==0)) return([])
+        const keys = Object.keys(rows[0]).map((key) => `\`${key}\``).join(', ')
+        let valuesArr = []
+        for(let row of rows){
+            valuesArr.push(Object.values(row))
+        }      
+        const query = `INSERT INTO ${table} (${keys}) VALUES ?`
+        const [result] = await this.db.query(query, [valuesArr]) //Note the wierd array in array of arrays, also, query, not execute
+        if('insertId' in result) {
+            this.lastInsertedId = result.insertId
+        } 
+        return(result)
+    }
+
+    /* Makes a multi-line VALUES insert, with values for an array of objects { columns:value }
+    */
+    async ReplaceObjectsStatement(table, rows){
+        this.lastInsertedId = -1
+        if((!this.db) || (rows.length==0)) return([])
+        const keys = Object.keys(rows[0]).map((key) => `\`${key}\``).join(', ')
+        let valuesArr = []
+        for(let row of rows){
+            valuesArr.push(Object.values(row))
+        }      
+        const query = `REPLACE INTO ${table} (${keys}) VALUES ?`
+        const [result] = await this.db.query(query, [valuesArr])  //Note the wierd array in array of arrays, also, query, not execute
+        if('insertId' in result) {
+            this.lastInsertedId = result.insertId
+        } 
+        return(result)
+    }
+    
+}