PHP-Project/operation.php at main · eslamwe/PHP-Project · GitHub

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<?php
require_once("../PHP-Project/db.php");
require_once("../PHP-Project/component.php");


$con = CreateDb();

//create button click
if (isset($_POST["create"])){
    createData();
}

//update button click
if (isset($_POST["update"])){
    updateData();
}

if(isset($_POST['delete'])){
    deleteRecord();
}

if(isset($_POST['deleteall'])){
    deleteAll();
}


function createData(){
    $bookname = textBoxValue("book_name");
    $bookpublisher = textBoxValue("book_publisher");
    $bookprice = textBoxValue("book_price");

    if ($bookname && $bookpublisher && $bookprice){
        $sql = "INSERT INTO books(book_name,book_publisher,book_price)
                VALUES('$bookname','$bookpublisher','$bookprice')";

        if (mysqli_query($GLOBALS['con'],$sql)){
            TextNode("success","Successfully Done");
        }
        else{echo "error";}
    }
    else{
        TextNode("error","Provide Data !");
    }
}

function textBoxValue($value){
    $textbox = mysqli_real_escape_string($GLOBALS['con'],trim($_POST[$value]));
    if (empty($textbox)){
        return false;
    }
    else{
        return $textbox;
    }

}

function TextNode($classname,$msg){
    $element = "<h6 class= '$classname'>$msg</h6>";
    echo $element;
}

function getData(){
    $sql = "SELECT * FROM books";
    $result = mysqli_query($GLOBALS['con'],$sql);

    if (mysqli_num_rows($result)> 0){
        return $result;
    }
}

function updateData(){
    $bookId = textBoxValue("book_id");
    $bookName = textBoxValue("book_name");
    $bookPublisher = textBoxValue("book_publisher");
    $bookPrice = textBoxValue("book_price");

    if($bookName && $bookPublisher && $bookPrice){
        $sql = "UPDATE books SET book_name='$bookName',
                 book_publisher='$bookPublisher',
                 book_price='$bookPrice'
                 WHERE id= '$bookId' ";
        if (mysqli_query($GLOBALS['con'],$sql)){
            TextNode("success","Data Updated !");
        }
        else{
            TextNode("error","Failed to update data !");
        }
    }
    else{
        TextNode("error","Select Data to be updated !");
    }
}

function deleteRecord(){
    $bookid=(int)textBoxValue("book_id");

    $sql="DELETE FROM books WHERE id=$bookid";

    if(mysqli_query($GLOBALS['con'],$sql)){
        TextNode("success","Record Deleted Successfully...!");
    }else{
        TextNode("error","Unable to DELETE RECORD...!");
    }
}

function deleteBtn(){
    $result=getData();
    $i=0;

    if($result){
        while($row=mysqli_fetch_assoc($result)){
            $i++;
            if($i>3){
                buttonElement("btn-deleteall","btn btn-danger","<i class='fas fa-trash'></i>Delete All","deleteall","");
                return;
            }
        }
    }
}

function deleteAll(){
    $sql="DROP TABLE books";

    if(mysqli_query($GLOBALS['con'],$sql)){
    TextNode("success","All records deleted successfully...!");
    CreateDb();
    }
    else{
        TextNode("error","Something went wrong, records cannot be deleted...!");
    }
}

// set id to textBox
function setID(){
    $getid=getData();
    $id=0;
    if($getid){
        while($row=mysqli_fetch_assoc($getid)){
            $id=$row['id'];
        }
    }
    return ($id+1);

}