IB Comp Sci SL - February 4 2017 Lesson Notes

From Computer Science Wiki

Class plan.png What are we going to learn today?[edit]

  1. Watch this video and ensure your PHPStorm connection settings are correct. Pay attention to detail. https://youtu.be/mm1pnvjgxgU
  2. We will review sessions, and discuss what happens when a user successfully logs in.
  3. We will create a logout script
  4. We will create a condition that toggles a login / logout button depending on the status of a logged in user
  5. We will learn about headers
  6. We will show the name of the logged in user
  7. We will learn how to (simply) prevent brute force attacks

Click the expand link to see our basic bootstrap template →

<!DOCTYPE html>
<html lang="en">
<head>

    <meta charset="utf-8"/>
    <meta http-equiv="X-UA-Compatible" content="IE=edge"/>
    <meta name="viewport" content="width=device-width, initial-scale=1"/>
    <meta name="description" content=""/>
    <meta name="author" content=""/>

    <title>Starter Template for Bootstrap</title>

    <!-- Bootstrap Core CSS -->
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/css/bootstrap.min.css"/>

    <!-- Custom CSS -->
    <style>
        body {
            padding-top: 50px;
        }
        .starter-template {
            padding: 40px 15px;
            text-align: center;
        }
    </style>

    <!-- HTML5 Shim and Respond.js IE8 support of HTML5 elements and media queries -->
    <!-- WARNING: Respond.js doesn't work if you view the page via file:// -->
    <!--[if lt IE 9]>
    <script src="https://oss.maxcdn.com/libs/html5shiv/3.7.0/html5shiv.js"></script>
    <script src="https://oss.maxcdn.com/libs/respond.js/1.4.2/respond.min.js"></script>
    <![endif]-->

</head>

<body>

<!-- Navigation -->
<nav class="navbar navbar-inverse navbar-fixed-top" role="navigation">
    <div class="container">
        <div class="navbar-header">
            <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target=".navbar-collapse">
                <span class="sr-only">Toggle navigation</span>
                <span class="icon-bar"></span>
                <span class="icon-bar"></span>
                <span class="icon-bar"></span>
            </button>
            <a class="navbar-brand" href="#">Project name</a>
        </div>
        <div class="collapse navbar-collapse">
            <ul class="nav navbar-nav">
                <li class="active"><a href="#">Home</a></li>
                <li><a href="#about">About</a></li>
                <li><a href="#contact">Contact</a></li>
            </ul>
        </div>
        <!--/.nav-collapse -->
    </div>
    <!-- /.container -->
</nav>

<!-- Page Content -->

    <nav class="navbar navbar-inverse navbar-fixed-top">
      <div class="container">
        <div class="navbar-header">
          <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar" aria-expanded="false" aria-controls="navbar">
            <span class="sr-only">Toggle navigation</span>
            <span class="icon-bar"></span>
            <span class="icon-bar"></span>
            <span class="icon-bar"></span>
          </button>
          <a class="navbar-brand" href="#">Project name</a>
        </div>
        <div id="navbar" class="navbar-collapse collapse">
          <form class="navbar-form navbar-right">
            <div class="form-group">
              <input type="text" placeholder="Email" class="form-control">
            </div>
            <div class="form-group">
              <input type="password" placeholder="Password" class="form-control">
            </div>
            <button type="submit" class="btn btn-success">Sign in</button>
          </form>
        </div><!--/.navbar-collapse -->
      </div>
    </nav>

    <!-- Main jumbotron for a primary marketing message or call to action -->
    <div class="jumbotron">
      <div class="container">
        <h1>Hello, world!</h1>
        <p>This is a template for a simple marketing or informational website. It includes a large callout called a jumbotron and three supporting pieces of content. Use it as a starting point to create something more unique.</p>
        <p><a class="btn btn-primary btn-lg" href="#" role="button">Learn more &raquo;</a></p>
      </div>
    </div>

    <div class="container">
      <!-- Example row of columns -->
      <div class="row">
        <div class="col-md-4">
          <h2>Heading</h2>
          <p>Donec id elit non mi porta gravida at eget metus. Fusce dapibus, tellus ac cursus commodo, tortor mauris condimentum nibh, ut fermentum massa justo sit amet risus. Etiam porta sem malesuada magna mollis euismod. Donec sed odio dui. </p>
          <p><a class="btn btn-default" href="#" role="button">View details &raquo;</a></p>
        </div>
        <div class="col-md-4">
          <h2>Heading</h2>
          <p>Donec id elit non mi porta gravida at eget metus. Fusce dapibus, tellus ac cursus commodo, tortor mauris condimentum nibh, ut fermentum massa justo sit amet risus. Etiam porta sem malesuada magna mollis euismod. Donec sed odio dui. </p>
          <p><a class="btn btn-default" href="#" role="button">View details &raquo;</a></p>
       </div>
        <div class="col-md-4">
          <h2>Heading</h2>
          <p>Donec sed odio dui. Cras justo odio, dapibus ac facilisis in, egestas eget quam. Vestibulum id ligula porta felis euismod semper. Fusce dapibus, tellus ac cursus commodo, tortor mauris condimentum nibh, ut fermentum massa justo sit amet risus.</p>
          <p><a class="btn btn-default" href="#" role="button">View details &raquo;</a></p>
        </div>
      </div>

      <hr>

      <footer>
        <p>&copy; 2016 Company, Inc.</p>
      </footer>
    </div> <!-- /container -->


<!-- /.container -->
<script src="https://code.jquery.com/jquery-2.1.3.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/js/bootstrap.min.js"></script>
</body>
</html>

Homework.png What is our homework?[edit]

  1. Please really start to think about your IA.


Target.png How am I being assessed today?[edit]

  1. You are not.

Ourstandards.png Standards we are covering today[edit]

Computer1.png As a computer scientist, you have:[edit]

  • Confidence in dealing with complexity
  • Persistence in working with difficult problems
  • Tolerance for ambiguity
  • The ability to deal with open-ended problems
  • The ability to communicate and work with others to achieve a common goal or solution

Credit.png Credits[edit]