retrieving multiple cookie values in a single cookie in javascript - javascript

I had post this problem before, dealing with the shopping cart application. The application so far does everything that i would like it to do. I'm able to store and retrieve the cookies. But right now, my problem is extracting the individual values from the cookies and placing them into a table i have created. This is the format of the cookie when retrieved.
ItemName = quantity$price. what i am trying to do is retrieve the quantity and price values from the cookie, and display that data into my table. the cookie is being created in my store page, and then retrieved and displayed in my cart page. here is the code for my store page
store.html
<html>
<head>
<title> Store </title>
<h1> My store </h1>
<script type="text/javascript">
function retr(circle)
{
var cke = document.cookie.split(';');
var nameCk= name + "=";
for(var i=0; i < cke.length; i++)
{
var c = cke [i];
while (c.charAt(0)==' ') c = c.substring(1, c.length);
if (c.indexOf(nameCk) == 0)
return c.substring(nameCk.length, c.length);
}
return null;
}
function createCookie()
{
var exdate = new Date();
exdate.setDate(exdate.getDate() +10);
if (document.getElementById("circle").checked)
{
document.cookie = "Circle=" + document.getElementById("quantity1").value + document.getElementById("price1").value + ";expires="+exdate.toGMTString();
}
}
function retrieve()
{
if (document.getElementById("circle").checked)
{
document.getElementById("ret").value = document.cookie;
}
}
function Calc()
{
var fpri = document.getElementById("price1").value;
var pri = fpri.substr(1);
var qty = document.getElementById("quantity1").value;
var spri = document.getElementById("price2").value;
var pri2 = spri.substr(1);
var qty2 = document.getElementById("quantity2").value;
if (document.getElementById("circle").checked)
{
document.getElementById("total").value ='$' + Number(pri) *
Number(qty);
}
else
document.getElementById("total").value = '$' + Number(pri2) *
Number(qty2);
}
</script>
</head>
<body>
<table border = "1">
<tr>
<td> <input type="checkbox" id="circle" /> Circle </td>
<td> <img src="circle.jpg"> </img> </td>
<td> Price: <input type="text" size="4" value = "$10.00"
id="price1" name = "price1" /></td>
<td> Quantity: <input type="text" size = "4"
id="quantity1"/></td>
</tr>
<tr>
<td> <input type = "checkbox" id="stickman" /> Stickman </td>
<td> <img src = "stickman.gif"> </img> </td>
<td> Price: <input type="text" size="4" value = "$5.00"
id="price2" /> </td>
<td> Quantity: <input type="text" size="4" id="quantity2" />
</td>
</tr>
</table>
<br />
<input type = "button" value = "Add to cart"
onclick="createCookie()">
<br />
<br />
<a href ="cart.html" > View Cart </a>
<br />
<input type = "text" size = "8" id = "total" readonly = "readonly"
/> Total
<br />
<input type = "button" id = "calcu" value = "calc" onclick = "Calc
()" />
<input type = "button" value = "retrieve" onclick = "retrieve()" />
<input type = "text" readonly = "readonly" name = "ret" id =
"ret"/>
</body>
</html>
the calculate and retrieve buttons, and the readonly text boxes are there just so i know the cookie is being stored and retrieved, and that i'm able to get the total, which will be displayed on my cart page.
here is the code for my cart page
cart.html
<html>
<head>
<title> Cart </title>
<h1> My cart </h1>
<script type = "text/javascript">
function retr(circle)
{
document.getElementById("q2").value = document.getElementById("quantity1").value
}
function retrieve()
{
var quvalue = retr("circle")
if (quvalue != false) {
document.getElementById("q2").value = quvalue
}
document.getElementById("ret").value = document.cookie;
}
</script>
</head>
<body onload = "retrieve()">
<table border = "1">
<td>Stickman </td>
<td><input type = "text" size = "8" id = "q2" readonly = "readonly" /></td>
<td id ="p1"> price per </td>
<td id ="t1"> total </td>
<tr> </tr>
<td> Circle </td>
<td> quantity order </td>
<td> price per </td>
<td> total </td>
<tr> </tr>
<td colspan = "3"> TOTAL: </td>
<td> total price </td>
</table>
<br /> <br />
<input type ="text" id = "ret" readonly = "readonly" />
<br / > <br />
<input type = "button" value = "Checkout">
<br /> <br />
<a href = "store.html" > Continue Shopping </a>
</body>
</html>
the values that are supposed to be retrieved in the table are invoked using the onload event attribute which is suppose to call the retrieve() function.
also, i understand that the way i created the table in my carts page isn't completely correct. but my main focus right now is to get the necessary values to be displayed in my table, then i will go back in rewrite my table code.

Related

How to automatically breaks the page using jspdf

I have a option for the user to add more row based on user's choice. If I add a row more than 9 or 10 the page breaks and the last row became half. I have 3 buttons Add, Remove and Save.
Add - to add more row.
Remove - to reduce row.
Save - to save as pdf.
This is my script where I adding and removing row happens.
Script: Add and Remove row.
$(document).ready(function ()
{
$("#addMore").click(function ()
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$("#customFields").append('<tr><td><input type="text" class="form-control"></td><td><input type="text" class="form-control"></td><td><input type="text" class="form-control"></td><td><input type="text" class="form-control"></td></tr>');
});
$("#removeRow").click(function()
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if ($('#customFields tbody tr').length== 1)
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alert('Error');
}
else
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$('#customFields tr:last').remove();
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$("#save").click(function ()
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var values = "";
//i is the iterator and c is the control. So every elements iterates through the second input of callback function in this case the c variable. c is literally this current element in the array/
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if(values.length > 0)
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html2canvas(document.getElementById("captureMyDiv"),
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doc.addImage(img, 'JPEG',0,0);
doc.save('text.pdf');
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}
else
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alert('Cannot be left blank');
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HTML:
<div class = "col-md-8" id = "captureMyDiv">
<div class="jumbotron text-center">
<h2 style = "text-align: center">REQUISITION AND ISSUE SLIP</h2>
<h4 style = "text-align: center">NATIONAL LABOR RELATIONS COMMISSION</h4>
</div>
<form class = "form-vertical">
<div class = "form-group">
<label class = "control-label">Department:</label>
<input type = "text" class = "form-control">
</div>
<div class = "form-group">
<label class = "control-label">Office:</label>
<input type = "text" class = "form-control">
</div>
<div class = "form-group">
<label class = "control-label">Responsibility Center Code:</label>
<input type = "text" class = "form-control">
</div>
<div class = "form-group">
<label class = "control-label">RIS No:</label>
<input type = "text" class = "form-control">
</div>
<div class = "form-group">
<label class = "control-label">SAI No:</label>
<input type = "text" class = "form-control">
</div>
</form>
<table class = "table" id = "customFields">
<thead>
<tr>
<th>Stock No.</th>
<th>Unit</th>
<th>Description</th>
<th>Quantity</th>
</tr>
</thead>
<tbody>
<tr>
<td><input type="text" class="form-control"></td>
<td><input type="text" class="form-control"></td>
<td><input type="text" class="form-control"></td>
<td><input type="text" class="form-control"></td>
</tr>
</tbody>
</table>
<button type = "submit" class = "btn btn-primary" id = "addMore">+ Add</button>
<button type = "submit" class = "btn btn-danger" id = "removeRow">- Remove</button>
<button type = "submit" class = "btn btn-success" id = "save">Save</button>
</div>
Screenshot:
Use a combination of css propertyes to brake the elements on the page like
page-break-after,page-break-before,page-break-inside
for more info

Calculating price from <span> value and <input> value

Today I try to calculating the price from <span> value and <input> value. And then, put the result in <span>.
I already tried this code. This is my html:
<td class="cart-product-price">
<span id="price" class="amount">19.99</span>
</td>
<td class="cart-product-quantity">
<div class="quantity clearfix">
<input type="button" value="-" class="minus" field="quantity">
<input type="text" id="quantity" name="quantity" value="2" class="qty" />
<input type="button" value="+" class="plus" field="quantity">
</div>
</td>
<td class="cart-product-subtotal">
<span id="total" class="amount"></span>
</td>
So I want to get price value from <span id="price>, get quantity from <input type="text" id="quantity" name="quantity">, and put the result in <span id="total" class="amount"></span>
This is my script code:
<script type="text/javascript">
var price = parseFloat($('#price').val()) || 0;
var qty = parseInt($('input[name=quantity]').val());
var total = price*qty;
$('#total').text(total);
</script>
Note: I am using JQuery for increase / decrease quantity (plus & minus button)
Did I wrote something wrong?
Thanks
UPDATE
This is my increase / decrease javascript code:
<script type="text/javascript">
jQuery(document).ready(function(){
// This button will increment the value
$('.plus').click(function(e){
// Stop acting like a button
e.preventDefault();
// Get the field name
fieldName = $(this).attr('field');
// Get its current value
var currentVal = parseInt($('input[name='+fieldName+']').val());
// If is not undefined
if (!isNaN(currentVal)) {
// Increment
$('input[name='+fieldName+']').val(currentVal + 1);
} else {
// Otherwise put a 0 there
$('input[name='+fieldName+']').val(0);
}
});
// This button will decrement the value till 0
$(".minus").click(function(e) {
// Stop acting like a button
e.preventDefault();
// Get the field name
fieldName = $(this).attr('field');
// Get its current value
var currentVal = parseInt($('input[name='+fieldName+']').val());
// If it isn't undefined or its greater than 0
if (!isNaN(currentVal) && currentVal > 0) {
// Decrement one
$('input[name='+fieldName+']').val(currentVal - 1);
} else {
// Otherwise put a 0 there
$('input[name='+fieldName+']').val(0);
}
});
});
</script>
The 'price' field is a span, which do not have a value property. Instead, you need to read the text() from it. Also note that the 'quantity' field has an id, so you would be better to use that as a selector as it's much faster. Try this:
var price = parseFloat($('#price').text()) || 0;
var qty = parseInt($('#quantity').val());
var total = price * qty;
$('#total').text(total);
Working example
var price = parseFloat($('#price').text()) || 0; //parseFloat($('#price').val()) || 0;
var qty = parseInt($('input[name=quantity]').val());
var total = price * qty;
$('#total').text(total);
The .val() method is primarily used to get the values of form elements such as input , select and textarea
FIDDLE DEMO
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<style>
.active {
color:red;
}
</style>
<script>
$(document).ready(function () {
var price = parseFloat($('#price').text()) || 0;
var qty = parseInt($('input[name=quantity]').val());
var total = price * qty;
$('#total').text(total);
});
</script>
</head>
<body>
<table>
<tr>
<td class="cart-product-price">
<span id="price" class="amount">19.99</span>
</td>
<td class="cart-product-quantity">
<div class="quantity clearfix">
<input type="button" value="-" class="minus" field="quantity">
<input type="text" id="Text1" name="quantity" value="2" class="qty" />
<input type="button" value="+" class="plus" field="quantity">
</div>
</td>
<td class="cart-product-subtotal">
<span id="total" class="amount"></span>
</td>
</tr>
</table>
</body>
</html>

On enter, search for the string in db

i have this code:
<body>
Please make your selection:
<div id="div1">
<tr>
<td>
<input type="button" value="Insert" onclick="form.html" />
</td>
<td>
<input type="button" value="View" onclick="window.location='view-master.php';" />
</td>
<td>
<input type="button" value="Edit" onclick="edit.html" />
</td>
<td>
<input type="button" value="Search" onclick="showsearchform()" />
</td>
</tr>
</div>
</body>
then the JS:
<script type="text/javascript">
function showsearchform()
{
var tr = document.createElement("tr");
var td = document.createElement("td");
var label = document.createElement("label");
label.id = "label1";
label.value = "Surname";
var input = document.createElement("input");
tr.appendChild(td);
td.appendChild(label);
td.appendChild(input);
var element = document.getElementById("div1");
element.appendChild(tr);
$('#input').keyup(function (e) {
var str = $('#search').val();
var url = "search.php";
if (e.keyCode == 13) {
location.href = url;
}
});
}
</script>
when i click on search i get the inoutbox, but what i want to do now is when i type a surname into the box and hit enter i want to connect to the db and search for this surname
I can do the db stuff just not sure of the JS and Jquery
html
<input type="text" name="txt" onkeypress="Search" />
javascript
<script>
function Search(e){
if(e.keyCode === 13){// enter key value is 13
**// Your ajax request write here , and in server side you can
**check corresponding results in database and return if data is present and take it as ajax replay****
}
return false;
}
</script>

2 Identical javascripts don't run with jquery accordian

Ok, here I have a Jquery Accordian with 2 tabs.
1 is for SELL and the other one is BUY.Each one of them has it's own group of input boxes and javascript attached to them.
Here's for the BUY tab
Input Boxes:-
<tr>
<td>BUY <input type="text" name="buybtc" id="buybtc" class="validate[required] text-input" placeholder="amount" size="10"> BTC </td>
<td>At Rate<input type="text" name="rate" id="rate" class="validate[required] text-input" placeholder="rate" size="10">BTC/LTC</td>
</tr>
<tr>
<td>LTC You will give<input type="text" name="giveltc" readonly id="giveltc" size="10"></td>
</tr>
Javascript:-
<script type="text/javascript">
window.onload = function(){
var buybtc = document.getElementById('buybtc'), //get the amount BTC to be sold
giveltc = document.getElementById('giveltc'),
rate = document.getElementById('rate');
var constantNumber = 0.022632;
rate.onkeyup = function () {
var result = parseFloat(buybtc.value) * parseFloat(rate.value);
giveltc.value = !isNaN(result) ? result : '';
};
}
//sellbtc = buybtc
//getltc = giveltc
</script>
SELL Tab :-
Input Boxes
<tr>
<td>Sell <input type="text" name="sellbtc" id="sellbtc" class="validate[required] text-input" placeholder="amount"> BTC </td>
<td>At Rate<input type="text" name="rates" id="rates" class="validate[required] text-input" placeholder="rate">LTC/BTC</td>
</tr>
<tr>
<td>LTC You will get<input type="text" name="getltc" readonly id="getltc"></td>
</tr>
Javascript :-
<script type="text/javascript">
window.onload = function(){
var sellbtc = document.getElementById('sellbtc'), //get the amount BTC to be sold
getltc = document.getElementById('getltc'),
rate = document.getElementById('rate');
var constantNumber = 0.022632;
rate.onkeyup = function () {
var result = parseFloat(sellbtc.value) * parseFloat(rate.value);
getltc.value = !isNaN(result) ? result : '';
};
}
</script>
The work of both these scripts is to calculate the total amount based on the principle amount and rate.The problem is, that when I put only 1 javascript in the page (for the buy tab)..everything works fine..i.e, the amount is calculated in the third box.But, the moment I place the javascript for the BUY tab..both the javascripts stop working, that means the final amount is not calculated in any of these tabs.
How should I tackled this problem?
Thanks.
Updated:-
<script type="text/javascript">
window.onload = function(){
var sellbtc = document.getElementById('sellbtc'), //get the amount BTC to be sold
getltc = document.getElementById('getltc'),
rate = document.getElementById('rate');
var constantNumber = 0.022632;
rate.onkeyup = function () {
var result = parseFloat(sellbtc.value) * parseFloat(rate.value);
getltc.value = !isNaN(result) ? result : '';
};
}
</script>
<script type="text/javascript">
window.onload = function(){
var buybtc = document.getElementById('buybtc'), //get the amount BTC to be sold
giveltc = document.getElementById('giveltc'),
rateSell = document.getElementById('rateSell');
var constantNumber = 0.022632;
rate.onkeyup = function () {
var resultSell = parseFloat(buybtc.value) * parseFloat(rateSell.value);
giveltc.value = !isNaN(resultSell) ? resultSell : '';
};
}
//sellbtc = buybtc
//getltc = giveltc
</script>
<div id="accordion">
<h3>Buy</h3>
<div>
<p>
<form action="tradehandler.php?action=buy" method="post" id="formID">
<table>
<tr>
<td>BUY <input type="text" name="buybtc" id="buybtc" class="validate[required] text-input" placeholder="amount" size="10"> BTC </td>
<td>At Rate<input type="text" name="rateSell" id="rateSell" class="validate[required] text-input" placeholder="rate" size="10">BTC/LTC</td>
</tr>
<tr>
<td>LTC You will give<input type="text" name="giveltc" readonly id="giveltc" size="10"></td>
</tr>
<tr>
<td><input type="submit" name="submit"></td>
</tr>
</table>
</form>
</p>
</div>
<h3>Sell</h3>
<div>
<p>
<form action="tradehandler.php?action=sell" method="post" id="formID">
<table>
<tr>
<td>Sell <input type="text" name="sellbtc" id="sellbtc" class="validate[required] text-input" placeholder="amount"> BTC </td>
<td>At Rate<input type="text" name="rate" id="rate" class="validate[required] text-input" placeholder="rate">LTC/BTC</td>
</tr>
<tr>
<td>LTC You will get<input type="text" name="getltc" readonly id="getltc"></td>
</tr>
<tr>
<td><input type="submit" name="submit"></td>
</tr>
</table>
</form>
</p>
</div>
</div>
this work only for sell div
<script type="text/javascript">
window.onload = function(){
setAccordion('sellbtc','getltc','rates');
};
}
function setAccordion(btc,ltc,rate)
{
var sellbtc = document.getElementById(btc), //get the amount BTC to be sold
getltc = document.getElementById(ltc),
rateVar = document.getElementById(rate);
var constantNumber = 0.022632;
rateVar.onkeyup = function () {
var result = parseFloat(sellbtc.value) * parseFloat(rate.value);
getltc.value = !isNaN(result) ? result : '';
}
</script>
if they are on the same page, you have to change the ID of rates and ltc in the SELL div
and change the script like this:
<script type="text/javascript">
window.onload = function(){
setAccordion('buybtc','getltc','rates');
setAccordion('sellbtc','SELLgetltc','SELLrates');
};
}
function setAccordion(btc,ltc,rate)
{
var sellbtc = document.getElementById(btc), //get the amount BTC to be sold
getltc = document.getElementById(ltc),
rateVar = document.getElementById(rate);
var constantNumber = 0.022632;
rateVar.onkeyup = function () {
var result = parseFloat(sellbtc.value) * parseFloat(rate.value);
getltc.value = !isNaN(result) ? result : '';
}
</script>

2 name attributes for a field in a form

I have a script that calculates the values in each and shows the calulated values. At the end it also calculates the already calculated values from all div's
Here is the html code:
<td>
<div>
<input name="r" class="rate" type="text" maxlength="255" size="5" value />
<input name="p" class="pack" type="text" maxlength="255" size="5" value />
<span class="amount"></span>
</div>
</td>
<td>
<div>
<input name="r" class="rate" type="text" maxlength="255" size="5" value />
<input name="p" class="pack" type="text" maxlength="255" size="5" value />
<span class="amount"></span>
</div>
</td>
The problem is that I want to put all fields in a form and then submit them to a database.
However, all divs contain two input fields with name "r" and "p".
So, I am kind of stuck here because I cannot figure out how to make the names unique or how to have them passed to the DB using POST.
This is what the calculating script looks like:
<script type="text/javascript">//<![CDATA[
//any time the amount changes
$(document).ready(function() {
$('input[name=r],input[name=p]').change(function(e) {
var total = 0;
var $row = $(this).parent();
var rate = $row.find('input[name=r]').val();
var pack = $row.find('input[name=p]').val();
total = parseFloat(rate * pack);
//update the row total
$row.find('.amount').text(total);
var total_amount = 0;
$('.amount').each(function() {
//Get the value
var am= $(this).text();
console.log(am);
//if it's a number add it to the total
if (IsNumeric(am)) {
total_amount += parseFloat(am, 10);
}
});
$('.total_amount').text(total_amount);
});
});
//isNumeric function Stolen from:
//http://stackoverflow.com/questions/18082/validate-numbers-in-javascript-isnumeric
function IsNumeric(input) {
return (input - 0) == input && input.length > 0;
}
//]]>
</script>
HTML:
<input type="text" name="r[]">
<input type="text" name="p[]">
<hr>
<input type="text" name="r[]">
<input type="text" name="p[]">
<hr>
<input type="text" name="r[]">
<input type="text" name="p[]">
PHP:
for ($i = 0; $i < count($_POST['p']); $i++) {
$rate = $_POST['r'][$i];
$pack = $_POST['p'][$i];
// do something with $rate and $pack
}
Since the browser submits all inputs (even if no value has been entered) and by specification it submits them in the order they are defined in the HTML code, you can rely that the elements in the two $_POST arrays will line up and the corresponding rate and pack will be received at the same index in the respective array.

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