tribedb/lib/insert.js

Unlimited expansion MySQL cluster storage system

/**
 *
 * insert
 * 
 */


const mysql = require('mysql');

const pool = require('./pool.js');


/**
 * 插入数据
 */
exports.insert = function(table, data)
{
    return new Promise(function (resolve, reject) {
        pool.conn(table, {write:1}, function(err, conn){
            if(err) return reject(err);
            conn.query("INSERT INTO `"+table+"` SET ?", data, function(err, rows){
                // log(rows);
                conn.release(); // 必须释放回连接池！
                if(err) return reject(err);
                resolve(rows); // 返回
            });
        });
    });
};




/**
 * 批量插入数据
 */
exports.inserts = function(table, datas)
{
    return new Promise(function (resolve, reject) {

        let data1 = datas[0];
        if( ! data1 ){
            return reject('tribe inserts no data !');
        }
        // 字段
        let fields = [];
        for(let i in data1){
            fields.push( i );
        }
        let fields_str = '(`' + fields.join('`,`') + '`)';
        // 数据
        let data_ary = [];
        for(let k in datas){
            let dts = [];
            for(let a in fields){
                dts.push( mysql.escape( datas[k][fields[a]] ) );
            }
            data_ary.push( '('+dts.join(',')+')' );
        }
        let data_str = data_ary.join(',');

        // 请求执行
        // console.log("INSERT INTO `"+table+"` "+fields_str+" VALUES "+data_str);
        pool.conn(table, {write:1}, function(err, conn){
            if(err) return reject(err);
            conn.query("INSERT INTO `"+table+"` "+fields_str+" VALUES "+data_str, function(err, rows){
                // log(rows);
                conn.release(); // 必须释放回连接池！
                if(err) return reject(err);
                resolve(rows); // 返回
            });
        });

    });
};