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December 10, 2017 22:39
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A simple firebase example for reading and writing database records realtime.
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<!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"> | |
<title>Order Form</title> | |
<!-- Bootstrap CSS --> | |
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous"> | |
</head> | |
<body> | |
<div class="container"> | |
<div class="jumbotron"> | |
<h1>Order Form</h1> | |
<form> | |
<div class="form-group"> | |
<label for="fullNameField">Your Full Name: </label> | |
<input type="text" class="form-control" id="fullNameField"> | |
</div> | |
<!-- todo: we should add a phone and an email field too so we can contact them back!! --> | |
<!-- This would be almost the same as the fullNameField, you have to change a couple things though, can you see what? --> | |
<div class="form-group"> | |
<label for="notesField">What would you like to order?: </label> | |
<!-- textarea are like inputs but they're for long text! --> | |
<textarea class="form-control" id="notesField"></textarea> | |
</div> | |
<!-- it's important NOT to use <button> here because that will do something els (that's why we use <a> and make it look like a button using css --> | |
<a class="btn btn-default" onclick="submitOrder()">Submit Order</a> | |
</form> | |
</div> | |
<div> | |
<h1>Previous Orders</h1> | |
<div id="previousOrders"> | |
<!-- We will use javascript to insert html for the orders list here --> | |
<!-- if you don't want orders to show on the homepage, you can duplicate the page and remove this from here, leave the other one with a werid name so only you can find it --> | |
</div> | |
</div> | |
</div> | |
<!-- jQuery --> | |
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script> | |
<!-- Bootstrap JS --> | |
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script> | |
<script src="https://www.gstatic.com/firebasejs/4.7.0/firebase.js"></script> | |
<script> | |
//Store information about your firebase so we can connect | |
//!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! | |
//IMPORTANT: REPLACE THESE WITH YOUR VALUES (these ones won't work) | |
//!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! | |
var config = { | |
apiKey: "XXXXXXXXXXXXXXXXXXXXXXXXXXXXX", | |
authDomain: "XXXXXX.firebaseapp.com", | |
databaseURL: "https://XXXXXXXXXX.firebaseio.com", | |
projectId: "XXXXXXXXXXXXXXXXX", | |
storageBucket: "XXXXXXXXXXXXXXX.appspot.com", | |
messagingSenderId: "XXXXXXXXXXXXXXX" | |
}; | |
//!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! | |
//!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! | |
//initialize your firebase | |
firebase.initializeApp(config); | |
var database = firebase.database(); | |
//create a variable to hold our orders list from firebase | |
var firebaseOrdersCollection = database.ref().child('orders'); | |
//this function is called when the submit button is clicked | |
function submitOrder() { | |
//Grab order data from the form | |
var order = { | |
fullName: $('#fullNameField').val(), //another way you could write is $('#myForm [name="fullname"]'). | |
notes: $('#notesField').val(), //another way you could write is $('#myForm [name="fullname"]'). | |
}; | |
//'push' (aka add) your order to the existing list | |
firebaseOrdersCollection.push(order); //'orders' is the name of the 'collection' (aka database table) | |
}; | |
//create a 'listener' which waits for changes to the values inside the firebaseOrdersCollection | |
firebaseOrdersCollection.on('value',function(orders){ | |
//create an empty string that will hold our new HTML | |
var allOrdersHtml = ""; | |
//this is saying foreach order do the following function... | |
orders.forEach(function(firebaseOrderReference){ | |
//this gets the actual data (JSON) for the order. | |
var order = firebaseOrderReference.val(); | |
console.log(order); //check your console to see it! | |
//create html for the individual order | |
//note: this is hard to make look pretty! Be sure to keep your indents nice :-) | |
//IMPORTANT: we use ` here instead of ' (notice the difference?) That allows us to use enters | |
var individialOrderHtml = `<div class='item'> | |
<p>Name: `+order.fullName+`</p> | |
<p>Notes: `+order.notes+`</p> | |
</div>`; | |
//add the individual order html to the end of the allOrdersHtml list | |
allOrdersHtml = allOrdersHtml + individialOrderHtml; | |
}); | |
//actaull put the html on the page inside the element with the id PreviousOrders | |
$('#previousOrders').html(allOrdersHtml); | |
//note: an alternative approach would be to create a hidden html element for one order on the page, duplicate it in the forEach loop, unhide it, and replace the information, and add it back. | |
}); | |
</script> | |
</body> | |
</html> |
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