CODEWITHSUNDEEP
phpmysqljson
user6388032
user6388032

Reputation: 125

How to set object property to null in Mysql

I am uploading a list of Objects to MySQL. Some of the objects do not contain the same number of variables. For example

Objectt1 {
property1
property 2
}

Objectt2 {
property1
property2
property3
}

Objectt3 {
property1
}

My problem is that Object3 in mysql is being given a property2 and property3 instead of NULL. the value is being taken from the Object2. How can I make object 3's propery2 and property3 null? The php code is as follows: (I think I understand why it does this, because the variable is isset already in a previous run of the loop. But I don't know how to fix it.)

<?php
error_reporting(E_ALL);
ini_set('display_errors', 1);


if($_SERVER["REQUEST_METHOD"] == "POST") {
    require 'connection.php';
    uploadstart();
}

function uploadstart() {
    global $connect; 

    $json = $_POST["objectlist"];

    //Remove Slashes
    if (get_magic_quotes_gpc()){
        $json = stripslashes($json);
    }

    $createworkoutquery = $connect->prepare("INSERT INTO objectTable 
                                                (id, prop1, prop2, prop3) 
                                         VALUES (?, ?, ?, ?)");

    $createworkoutquery->bind_param("ssss", $ID, $prop1, $prop2, $prop3) ;
    //convert json object to php associative array
    $data = json_decode($json, true);

    //Util arrays to create response JSON
    $a=array();
    $b=array();

    // loop through the array
    foreach ($data as $row) {
        // get the list details
        $ID = $row["id"];    
        $prop1 = $row["prop1"];

        if (isset($row["prpop2"])) {
            $prop2 = $row["prop2"];
        }

        if (isset($row["prop3"])) {
            $prop3 = $row["prop3"];
        }


        // execute insert query
        $result = $createworkoutquery->execute();

        //if insert successful.. plug yes and woid else plug no
        if($result){
            $b["id"] = $ID;
            $b["status"] = 'yes';
            array_push($a,$b);
        } else {
            $b["id"] = $ID;
            $b["status"] = 'no';
            array_push($a,$b);
        }
    }

    echo json_encode($a);

    //close connection
    mysqli_close($connect);

}
?>

Upvotes: 0

Views: 966

Answers (2)

earl
earl

Reputation: 36

One thing I noticed is a mispelling prpop2

if (isset($row["prpop2"])) {
    $prop2 = $row["prop2"];
}

Upvotes: 0

BeetleJuice
BeetleJuice

Reputation: 40886

Assign null to the missing properties on each iteration so the previous value doesn't get bound to the query:

foreach($data as $row){
    $ID = $row['id'];
    $prop1 = isset($row['prop1'])? $row['prop1']: null;
    $prop2 = isset($row['prop2'])? $row['prop2']: null;
    $prop3 = isset($row['prop3'])? $row['prop3']: null;

    $result = $createworkoutquery->execute();
    ...
}

Upvotes: 2

Related Questions