code-boxx/0-PHP-TIMETABLE.MD

## 0-PHP-TIMETABLE.MD

      
    Raw
  

              0-PHP-TIMETABLE.MD
            
          
    PHP MYSQL TIMETABLE

https://code-boxx.com/simple-timetable-php-mysql/
NOTES


Create a database and import 1-database.sql.
Change the database settings in 2-lib-timetable.php to your own.
Access 3a-timetable.php in the browser.

LICENSE

Copyright by Code Boxx
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

  
## 1-database.sql
-- (A) EVENTS TABLE
CREATE TABLE `events` (
  `event_id` bigint(20) NOT NULL,
  `event_txt` varchar(255) NOT NULL,
  `event_row` varchar(255) NOT NULL,
  `event_col` varchar(255) NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

ALTER TABLE `events`
  ADD PRIMARY KEY (`event_id`);

ALTER TABLE `events`
  MODIFY `event_id` bigint(20) NOT NULL AUTO_INCREMENT, AUTO_INCREMENT=4;

-- (B) DUMMY DATA
INSERT INTO `events` (`event_id`, `event_txt`, `event_row`, `event_col`) VALUES
(1, 'Walk the doge.', '2', '2/3'),
(2, 'Feed the doge.', '4', '3/4'),
(3, 'Play with doge.', '6', '2');

## 2-lib-timetable.php
<?php
class TimeTable {
  // (A) CONSTRUCTOR - CONNECT TO DATABASE
  private $pdo = null;
  private $stmt = null;
  public $error = "";
  function __construct () {
    $this->pdo = new PDO(
      "mysql:host=".DB_HOST.";dbname=".DB_NAME.";charset=".DB_CHARSET,
      DB_USER, DB_PASSWORD, [
      PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
      PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC
    ]);
  }

  // (B) DESTRUCTOR - CLOSE DATABASE CONNECTION
  function __destruct () {
    if ($this->stmt!==null) { $this->stmt = null; }
    if ($this->pdo!==null) { $this->pdo = null; }
  }

  // (C) HELPER FUNCTION - EXECUTE SQL QUERY
  function query ($sql, $data=null) : void {
    $this->stmt = $this->pdo->prepare($sql);
    $this->stmt->execute($data);
  }

  // (D) GET ALL EVENTS
  function get () {
    $this->query("SELECT * FROM `events`");
    return $this->stmt->fetchAll();
  }

  // (E) SAVE EVENT
  function save ($txt, $row, $col, $id=null) {
    // (E1) NEW EVENT
    if ($id==null) {
      $sql = "INSERT INTO `events` (`event_txt`, `event_row`, `event_col`) VALUES (?, ?, ?)";
      $data = [$txt, $row, $col];
    }

    // (E2) EDIT EVENT
    else {
      $sql = "UPDATE `events` SET `event_txt`=?, `event_row`=?, `event_col`=? WHERE `event_id`=?";
      $data = [$txt, $row, $col, $id];
    }

    $this->query($sql, $data);
    return true;
  }

  // (F) DELETE EVENT
  function del ($id) {
    $this->query("DELETE FROM `events` WHERE `event_id`=?", [$id]);
    return true;
  }
}

// (G) DATABASE SETTINGS - CHANGE TO YOUR OWN!
define("DB_HOST", "localhost");
define("DB_NAME", "test");
define("DB_CHARSET", "utf8mb4");
define("DB_USER", "root");
define("DB_PASSWORD", "");

// (H) NEW TIMETABLE OBJECT
$_TT = new TimeTable();

## 3a-timetable.php
<!DOCTYPE html>
<html>
  <head>
    <title>Time Table With CSS Grid</title>
    <meta charset="utf-8">
    <script src="3b-timetable.js"></script>
    <link rel="stylesheet" href="3c-timetable.css">
  </head>
  <body>
    <!-- (A) GENERATE TIMETABLE HERE -->
    <div id="demo"></div>

    <!-- (B) ATTACH TIMETABLE -->
    <script>
    timetable({
      // (B1) REQUIRED
      target: document.getElementById("demo"),
      x: ["Morning", "Afternoon", "Night"],
      y: ["Mon", "Tue", "Wed", "Thur", "Fri"],

      // (B2) LOAD PHP LIBRARY & OUTPUT ENTRIES
      data: [<?php
        require "2-lib-timetable.php";
        $entries = $_TT->get();
        $len = count($entries);
        $last = $len - 1;
        if ($len>0) { for ($i=0; $i<$len; $i++) {
          $entry = $entries[$i];
          printf("{txt:'%s',row:'%s',col:'%s',color:'#696a07',bg:'#fffac0'}%s",
            $entry["event_txt"], $entry["event_row"], $entry["event_col"],
            $i!=$last ? "," : ""
          );
        }}
      ?>],

      // (B3) OPTIONAL
      gridX: "100px repeat(3, 1fr)",
      gridY : "50px"
    });
    </script>
  </body>
</html>

## 3b-timetable.js
function timetable (instance) {
  // (A) CSS
  instance.target.classList.add("timetable");
  if (instance.gridX == undefined) {
    instance.gridX = `repeat(${instance.x.length+1}, 1fr)`;
  }
  instance.target.style.gridTemplateColumns = instance.gridX;
  if (instance.gridY) {
    instance.target.style.gridAutoRows = instance.gridY;
  }

  // (B) GENERATE CELLS HELPER FUNCTION
  let celler = (data, css) => {
    let cell = document.createElement("div");
    cell.className = css;
    if (typeof data == "string") { cell.innerHTML = data; }
    else {
      cell.innerHTML = data.txt;
      cell.style = `grid-column:${data.col};grid-row:${data.row};color:${data.color};background:${data.bg}`;
      if (instance.gridY) { cell.style.height = instance.gridY; }
      if (data.click) { cell.onclick = data.click; }
    }
    instance.target.appendChild(cell);
  };

  // (C) FIRST ROW - EMPTY CELL | HEADER FOR X
  celler("&nbsp;", "cell head");
  for (let i of instance.x) { celler(i, "cell head"); }

  // (D) FOLLOWING ROWS - HEADER FOR Y | EMPTY CELLS
  for (let i=0; i<instance.y.length; i++) {
    celler(instance.y[i], "cell head");
    for (let j=0; j<instance.x.length; j++) { celler("&nbsp;", "cell"); }
  }

  // (E) ENTRIES
  for (let i of instance.data) { celler(i, "cell entry"); }
}

## 3c-timetable.css
/* (A) WHOLE PAGE */
* {
  font-family: Arial, Helvetica, sans-serif;
  box-sizing: border-box;
}

/* (B) TIMETABLE WRAPPER */
.timetable {
  display: grid;
  position: relative;
}

/* (C) BLANK & HEADER CELLS */
.cell {
  display: flex;
  align-items: center;
  padding: 10px;
  border: 1px solid #efefef;
}
.head {
  font-weight: 700;
  justify-content: center;
  color: #fff;
  background: #343da3;
}

/* (D) ENTRY CELLS */
.entry {
  position: absolute;
  right: 0; left: 0; top: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
	-- (A) EVENTS TABLE
	CREATE TABLE `events` (
	`event_id` bigint(20) NOT NULL,
	`event_txt` varchar(255) NOT NULL,
	`event_row` varchar(255) NOT NULL,
	`event_col` varchar(255) NOT NULL
	) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

	ALTER TABLE `events`
	ADD PRIMARY KEY (`event_id`);

	ALTER TABLE `events`
	MODIFY `event_id` bigint(20) NOT NULL AUTO_INCREMENT, AUTO_INCREMENT=4;

	-- (B) DUMMY DATA
	INSERT INTO `events` (`event_id`, `event_txt`, `event_row`, `event_col`) VALUES
	(1, 'Walk the doge.', '2', '2/3'),
	(2, 'Feed the doge.', '4', '3/4'),
	(3, 'Play with doge.', '6', '2');
	<?php
	class TimeTable {
	// (A) CONSTRUCTOR - CONNECT TO DATABASE
	private $pdo = null;
	private $stmt = null;
	public $error = "";
	function __construct () {
	$this->pdo = new PDO(
	"mysql:host=".DB_HOST.";dbname=".DB_NAME.";charset=".DB_CHARSET,
	DB_USER, DB_PASSWORD, [
	PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
	PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC
	]);
	}

	// (B) DESTRUCTOR - CLOSE DATABASE CONNECTION
	function __destruct () {
	if ($this->stmt!==null) { $this->stmt = null; }
	if ($this->pdo!==null) { $this->pdo = null; }
	}

	// (C) HELPER FUNCTION - EXECUTE SQL QUERY
	function query ($sql, $data=null) : void {
	$this->stmt = $this->pdo->prepare($sql);
	$this->stmt->execute($data);
	}

	// (D) GET ALL EVENTS
	function get () {
	$this->query("SELECT * FROM `events`");
	return $this->stmt->fetchAll();
	}

	// (E) SAVE EVENT
	function save ($txt, $row, $col, $id=null) {
	// (E1) NEW EVENT
	if ($id==null) {
	$sql = "INSERT INTO `events` (`event_txt`, `event_row`, `event_col`) VALUES (?, ?, ?)";
	$data = [$txt, $row, $col];
	}

	// (E2) EDIT EVENT
	else {
	$sql = "UPDATE `events` SET `event_txt`=?, `event_row`=?, `event_col`=? WHERE `event_id`=?";
	$data = [$txt, $row, $col, $id];
	}

	$this->query($sql, $data);
	return true;
	}

	// (F) DELETE EVENT
	function del ($id) {
	$this->query("DELETE FROM `events` WHERE `event_id`=?", [$id]);
	return true;
	}
	}

	// (G) DATABASE SETTINGS - CHANGE TO YOUR OWN!
	define("DB_HOST", "localhost");
	define("DB_NAME", "test");
	define("DB_CHARSET", "utf8mb4");
	define("DB_USER", "root");
	define("DB_PASSWORD", "");

	// (H) NEW TIMETABLE OBJECT
	$_TT = new TimeTable();
	<!DOCTYPE html>
	<html>
	<head>
	<title>Time Table With CSS Grid</title>
	<meta charset="utf-8">
	<script src="3b-timetable.js"></script>
	<link rel="stylesheet" href="3c-timetable.css">
	</head>
	<body>
	<!-- (A) GENERATE TIMETABLE HERE -->
	<div id="demo"></div>

	<!-- (B) ATTACH TIMETABLE -->
	<script>
	timetable({
	// (B1) REQUIRED
	target: document.getElementById("demo"),
	x: ["Morning", "Afternoon", "Night"],
	y: ["Mon", "Tue", "Wed", "Thur", "Fri"],

	// (B2) LOAD PHP LIBRARY & OUTPUT ENTRIES
	data: [<?php
	require "2-lib-timetable.php";
	$entries = $_TT->get();
	$len = count($entries);
	$last = $len - 1;
	if ($len>0) { for ($i=0; $i<$len; $i++) {
	$entry = $entries[$i];
	printf("{txt:'%s',row:'%s',col:'%s',color:'#696a07',bg:'#fffac0'}%s",
	$entry["event_txt"], $entry["event_row"], $entry["event_col"],
	$i!=$last ? "," : ""
	);
	}}
	?>],

	// (B3) OPTIONAL
	gridX: "100px repeat(3, 1fr)",
	gridY : "50px"
	});
	</script>
	</body>
	</html>
	function timetable (instance) {
	// (A) CSS
	instance.target.classList.add("timetable");
	if (instance.gridX == undefined) {
	instance.gridX = `repeat(${instance.x.length+1}, 1fr)`;
	}
	instance.target.style.gridTemplateColumns = instance.gridX;
	if (instance.gridY) {
	instance.target.style.gridAutoRows = instance.gridY;
	}

	// (B) GENERATE CELLS HELPER FUNCTION
	let celler = (data, css) => {
	let cell = document.createElement("div");
	cell.className = css;
	if (typeof data == "string") { cell.innerHTML = data; }
	else {
	cell.innerHTML = data.txt;
	cell.style = `grid-column:${data.col};grid-row:${data.row};color:${data.color};background:${data.bg}`;
	if (instance.gridY) { cell.style.height = instance.gridY; }
	if (data.click) { cell.onclick = data.click; }
	}
	instance.target.appendChild(cell);
	};

	// (C) FIRST ROW - EMPTY CELL \| HEADER FOR X
	celler(" ", "cell head");
	for (let i of instance.x) { celler(i, "cell head"); }

	// (D) FOLLOWING ROWS - HEADER FOR Y \| EMPTY CELLS
	for (let i=0; i<instance.y.length; i++) {
	celler(instance.y[i], "cell head");
	for (let j=0; j<instance.x.length; j++) { celler(" ", "cell"); }
	}

	// (E) ENTRIES
	for (let i of instance.data) { celler(i, "cell entry"); }
	}
	/* (A) WHOLE PAGE */
	* {
	font-family: Arial, Helvetica, sans-serif;
	box-sizing: border-box;
	}

	/* (B) TIMETABLE WRAPPER */
	.timetable {
	display: grid;
	position: relative;
	}

	/* (C) BLANK & HEADER CELLS */
	.cell {
	display: flex;
	align-items: center;
	padding: 10px;
	border: 1px solid #efefef;
	}
	.head {
	font-weight: 700;
	justify-content: center;
	color: #fff;
	background: #343da3;
	}

	/* (D) ENTRY CELLS */
	.entry {
	position: absolute;
	right: 0; left: 0; top: 0;
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
	}