git

db.js

@@ -0,0 +1,69 @@
+const mysql = require('mysql');
+
+const logcon = mysql.createConnection({
+    host: 'localhost',
+    user: 'user',
+    password: 'user',
+    database: 'users'
+});
+
+logcon.connect();
+
+// check_for
+module.exports.cv = (table,key,value,callback) => {
+    logcon.query('SELECT * FROM `'+table+'`', (err, rows, fields) => {
+        let log = '';
+        if (err) {
+            console.log("sql err");
+            throw err;
+        } 
+        rows.forEach(rec => {
+            if (rec[key]==value){
+                log = rec[key];
+                return;
+            }
+        });
+        if (log != ''){
+            callback(log);
+        }
+        else{
+            callback(null);
+        }
+    })
+}
+
+// get_from
+module.exports.gv = (table,key,value,callback) => {
+    logcon.query('SELECT * FROM `'+table+'` WHERE `'+key+'` = "'+value+'"', (err, rows, fields) => {
+        if (err) {
+            console.log("sql err");
+            throw err;
+        }else{
+            callback(rows[0]);
+        }
+    })
+}
+
+// set_in
+module.exports.sv = (table,key,value,ekey,evalue,callback) => {
+    logcon.query('UPDATE `'+table+'` SET `'+key+'` = "'+value+'" WHERE `'+ekey+'` = "'+evalue+'"', (err , res) => {
+        if (err) {
+            console.log("sql err");
+            throw err;
+        }else{
+            callback(res);
+        }
+    })
+}
+
+module.exports.nr = (table,keys,values) =>{
+    // console.log('INSERT INTO `'+table+'`('+keys+') VALUES ('+values+')');
+    logcon.query('INSERT INTO `'+table+'`('+keys+') VALUES ('+values+')',(err,res) =>{
+        if (err) {
+            console.log("sql err");
+            throw err;
+        }else{
+            return true;
+        }
+    })
+}