node-qsb2/example/example.js

Node.js Query String Builder (QSB) for MySQL/MariaDB, Forked from node-qsb

var qsb = require("../");

console.log("==== INSERT ======");
var qs1 = new qsb()
    .insert("tableName")
    .values(["colName"], ["Value"])
    .build()
    .printString();
//INSERT INTO `tableName`(`colName`) VALUES ('Value');

var params = {
    cols: ["col1", "col2", "col3", "col4"],
    vals: [null, "val2", "val3", 4000],
};
var qs2 = new qsb()
    .insert("tableName")
    .values(params.cols, params.vals)
    .build()
    .printString();
//INSERT INTO `tableName`(`col1`, `col2`, `col3`, `col4`) VALUES ('val1', 'val2', 'val3', '4000');

qs2.addValues(params.vals).build().printString();
//INSERT INTO `tableName`(`col1`, `col2`, `col3`, `col4`) VALUES ('val1', 'val2', 'val3', '4000'),('val1', 'val2', 'val3', '4000');

console.log("\n==== UPDATE ======");
var qs = new qsb()
    .update("tableName")
    .set("name", "Yowu")
    .where("idx", "=", "423")
    .build()
    .printString();
//UPDATE `tableName` SET `name` = 'Yowu' WHERE `idx` = '423';

qs.set("email", "uyu423@gmail.com").build().printString();
//UPDATE `tableName` SET `name` = 'Yowu', `email` = 'uyu423@gmail.com' WHERE `idx` = '423';

console.log("\n==== forceQuery ======");
var qs = new qsb().forceQuery("select * from tableName").printString();
//select * from tableName

console.log("\n==== SELECT ======");
var qs = new qsb().select("tableName").where("idx", ">", "10").build();
qs.printString(); //SELECT * FROM `tableName` WHERE `idx` > '10';
console.log(qs.returnString()); //SELECT * FROM `tableName` WHERE `idx` > '10';

qs.where("name", "=", "Yowu").build();
console.log(qs.returnString()); //SELECT * FROM `tableName` WHERE `idx` > '10' AND `name` = 'Yowu';

qs.whereOr("name", "=", "Yu Yongwoo").build();
console.log(qs.returnString()); //SELECT * FROM `tableName` WHERE `idx` > '10' AND `name` = 'Yowu' OR `name` = 'Yu Yongwoo';

console.log("\n==== DELETE ======");
var qs = new qsb()
    .delete("tableName")
    .where("idx", "=", 10)
    .build()
    .printString();
//DELETE FROM `tableName` WHERE `idx` = '10';

console.log("\n==== SELECT NOT USING STAR ======");
var qs = new qsb().select("tableName").get("col1").get("col2").build();
console.log(qs.returnString());
//SELECT `col1`, `col2` FROM `tableName`;

console.log("\n==== JOIN ======");
try {
    var qs = new qsb()
        .select("tableName", "TN1")
        .join("tableName2", "TN2")
        .where("TN1.idx", "<=", 10)
        .whereOr("TN2.idx", "=", "TN1.idx")
        .where("TN1.idx", "in", [1, 2, 3])
        .where("TN1.idx", "between", '"2020-03-01" and "2020-05-31"')
        .where("TN1.idx", "IS NULL")
        .build()
        .printString();
    //SELECT * FROM `tableName` `TN1` JOIN `tableName2` `TN2` WHERE `TN1`.`idx` <= '10' OR `TN2`.`idx` = 'TN1.idx';

    var qsJoin = new qsb()
        .select("test", "TN1")
        .get("TN1.id")
        .get("TN1.name")
        .get("TN2.name2")
        .leftJoin(
            "SELECT * FROM test2 where id <= 3",
            "TN2",
            "TN1.id=TN2.id",
            true
        )
        .build()
        .printString();
} catch (e) {
    console.error(e);
}

console.log("\n==== LIMIT ======");
qs.limit(0, 10).build();
console.log(qs.returnString());
//SELECT * FROM `tableName` `TN1` JOIN `tableName2` `TN2` WHERE `TN1`.`idx` <= '10' OR `TN2`.`idx` = 'TN1.idx' LIMIT '0', '10';

console.log("\n==== ORDER BY ======");
qs.orderBy("TN1.idx", "DESC").orderBy("TN2.name", "ASC").build();
console.log(qs.returnString());
//SELECT * FROM `tableName` `TN1` JOIN `tableName2` `TN2` WHERE `TN1`.`idx` <= '10' OR `TN2`.`idx` = 'TN1.idx' ORDER BY `TN1`.`idx` desc LIMIT '0', '10';