Pass Database Query Result For Calculation?
Feb 25, 2009
i having problem on passing the database query result to the javascritpt for calculation.i doing a program that need to calculate the total_price for the purchase items. i use getString to get the foodID, f_item and the unit_price from database, then i need to use the unit_price for doing the calculation in javascript. after get the data from database, the unit_price is used to multiple with the qty that user input to calculate the total_price.since there are several row of data get from database, so user need to enter the qty for each item and then press [Calculate_db] button to perform the calculated result. hence, the total_price for each item is calculated and the sum of all the total_price also being calculated and display in the page.now, i having problem on pass the unit_price to the javascript for calculation.
<form name="formCalc2">
<table>
<tr>
[code]....
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Apr 7, 2009
If I want to show the result of a database query, every second or so, is the best method using javascript/ajax with a set interval of a second to call a PHP script and update the DOM, or is there some other method better suited to this that would not have the cpu overhead if there were many users on the site.
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Apr 15, 2008
Does anyone know how to set a javascript variable as a query result from a MySQL database.
As an example, like this:
Set this query:
I just can't do it. I've tried doing it like this:
But the thing stops my <body onLoad=""> function from working. I'm no expert in Javascript.
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Sep 19, 2009
This is my very first javascript (I have limited knowledge C++ and php). I am trying to make an instant quote calculator, but having some trouble.I want to display the result of the calculation in the textbox with id price.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>[code]........
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May 9, 2011
I'm trying to display a calculation result with a thousands separator (eg $1200 to $1,200).
what javascript code I can use to achieve this?
This is my 'calculate' button....
<a href="#TB_inline?height=360&width=380&inlineId=popup" class="thickbox" onClick="checkValue(); calculateTotal(); true" >
<input type="button" name="Button" value="OK" class="OK" /></a>
[Code].....
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Feb 27, 2009
Having trouble calculating the final cost of choices made by a user. I have 4 radio buttons and 2 checkboxes. The first three radio buttons are, all intensive purposes, chocolates with the last radio button stating that the user doesn't want any of the chocolates. The two checkboxes are a milkshake and candyfloss respectively. The user may only choose one of the three chocolates and optionally the milkshake, candyfloss or both.
What I have so far is as follows:
Javascript code
function calc(sec,val,item)
{
if(!item) {
var item = null;
}
switch(sec)
{
case 1:
Some code for a different function.
break
case 2:
cValue = parseInt(document.getElementById("purchaseTotal").value);
if(item.checked){
document.getElementById("purchaseTotal").value = cValue+val;
}else{
document.getElementById("purchaseTotal").value = cValue-val;
} break;
} }
html
<td>Chocolate 1: ZAR 5.00</td>
<td><input name="chocolate" type="radio" id="chocolate" value="" onClick="calc(2,5.00, this);">
</td>
<td> </td>
</tr>
<tr>
<td>Chocolate 2: ZAR 5.00</td>
<td><input name="chocolate" type="radio" id="chocolate" value="" onClick="calc(2,5.00, this);">
</td>
<td> </td>
</tr>
<tr>
<td>Chocolate 3: ZAR 1 200.00</td>
<td><input name="chocolate" type="radio" id="chocolate" value="" onClick="calc(2,5.00, this);">
</td>
<td> </td>
</tr>
<tr>
<td>I do not wish to buy a chocolate.</td>
<td><input name="chocolate" type="radio" id="chocolate" value="" onClick="calc(2,0, this);">
</td>
<td> </td>
</tr>
<tr>
<td>Milkshake: ZAR 13.00</td>
<td><input type="checkbox" name="milkshake" id="milkshake" value="" onClick="calc(2,13.00, this);"></td>
<td> </td>
</tr>
<tr>
<td>Candyfloss: ZAR 8.00</td>
<td><input type="checkbox" name="candyfloss" id="candyfloss" value="" onClick="calc(2,8.00, this);"></td>
<td> </td>
</tr>
<tr>
<td colspan="3" align="right" valign="top">Total ZAR <input name="purchaseTotal" type="text" id="purchaseTotal" value="0"></td>
What happens at the moment is that clicking on one radio button doesn't subtract the amount from the previous selected radio button and clicking on the same radio button just keeps adding its value to the total. I'd like it to do the opposite and not add to the total if clicked repeatedly and if another radio button is selected the amount of the previous radio button must be deducted from the total.
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May 25, 2011
I'm trying to run a php query via ajax httprequest. In my php script I have query result. I am also creating a txt file and link to the file. The query result then becomes the link to the file like so:
[Code]...
where $counter[0] is the result of the query. How do I access $Link from the httprequest result so I end up with something like this:
[Code]...
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May 4, 2010
inserting a result of a SQL query into a html template.I've got a function which sends a query to a client side database und should afterwards show the result on the html side. Here is my function:
function refreshEntries() {
db.transaction
(
function(transaction)
[code]....
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Mar 19, 2011
Is it possible to connect to a MySQL database from within a jQuery script, run a query, and return the results?
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Dec 27, 2004
i'm having the user input their state (from a drop down list) and type in a zipcode (there are 1,143 zip codes in the database to match to)..
what i want to happen is once the user selects the state they live in, and type in a zip code, i need the page to query the database if the user selected Ohio, and match the counties in the database with the zip code they entered, and then create a drop down list of the counties for them to select the one they live in Code:
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Nov 29, 2010
I'm making a little CMS, and I need to use AJAX to query the DB to see if an email is already registered. Here's my code so far:
The javascript:
Code:
<script>
function getEmail(){
var ajaxRequest;
try{
ajaxRequest = new XMLHttpRequest();
} .....
I'll test it by entering javascript:alert(getEmail()) in my browser, and it returns undefined. When I replace return 'valid/taken' to alert valid/taken, it will alert the values correctly, but for some reason it has to be entered twice (I have to hit enter twice in javascript:getEmail() for it to be correctly outputted). I'm relatively new to ajax and I think it might have something to do with the readyState not being correct.
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Jul 23, 2005
Below is a stock script I found which controls a framed environment.
My problem is that if a URL has a query string attached, that string
does not pass through. Can someone please let me know if and
hopefully how, it will be possible to carry a query string through?
This first part here is in the default.asp framed page. Code:
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Jul 23, 2005
What I am attempting to do is have a link/button on a page
(testpopup.cfm) that opens a popup page (popupwindow.cfm). The popup
page displays a resultset from a query and the selected record needs
to be passed through a query string/URL parameter to the original
calling page and will be available in the body onload event of the
calling page.
I open the popup window and display the query results, I then click on
a record and the record is then displayed in the calling form textbox
(txtOrg) - - - only the calling form appears in the POPUP window!
This is not what I need it to do. I need it to pass the URL parameter
to the calling page and close the popup. Here is the code from the
two pages. Can you shed any light on this? ....
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Jul 30, 2010
I have 2 java Servlet files EmpRecord & Delete. Employee has a button of delete, on clicking it....page will be redirected to Delete.java Here the record will be deleted. Now, I want to redirect Delete.java back to EmpRecord.java where the message "Record deleted" will be displayed. How can I pass the message from Delete.java to EmpRecord.java to display the message?
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Feb 23, 2006
I am making a webpage that can query a database table of employees
and return them in a html table. Currently I have submit buttons beside
each employee to open the page to edit their details. I have been using
php/HTML to do this, but wondered if it is safe to use javascript to
just click on the name of the employee to jump to the edit page. I've
been looking on the web for sometime about how to do this without any
luck. Any thoughts?
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Oct 8, 2011
This is the script that I am trying to use:
<html>
<head>
<link type="text/css" rel="stylesheet" href="/stylesheets/main.css" /><title>User Admin Page</title>
[Code].....
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Jul 23, 2005
I have a form which passes an IP address to another page which then runs a
function to resolve a host name. I am trying to pass the form name 'ip' to
the string, but am having problems with the syntax. Code:
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May 23, 2011
I'm using JavaScript (through a ColdFusion component) to submit data to a database for either INSERT or UPDATE.How can I tell JavaScript that a particular value going into the database needs to be NULL?
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Aug 7, 2010
Basically the user would see a button on a form that would be something like "add contact"...then a window opens that shows a search window (want to implement something like [URL]) and it would show all the contacts available in the contacts table...then the user selects the contact to add (via a link).
I think i could get it this far, but how would i then pass that $row to the main form so that i can use the fields from that $row in the contacts table on my form?
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May 4, 2009
I need to pass user input from a form to one database field. I'm relatively new to JS but the idea I had was to have several form elements and use JS to collect the users input and send all the values through a hidden element. What's happening is the variable names are being sent rather than the values. The code below is only passing to the next page. Limitations: I am editing an intranet site built by a 3rd party so a lot of the files we've been given are encrypted. I cannot change the method to post.
[Code]....
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Jan 11, 2011
Can i use single jquery and html to do some database manipulation i.e. database transaction.
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Aug 10, 2010
I want to be able to grab words from a database with javascript. How do I do that?
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Oct 31, 2011
I have been searching how to connect to a database and execute some queries, and then use the data that I get to populate some tables in a web page, all this using javascript.
I am confused because I have seen in some webpages that javascript is not designed to connect with databases, and also I have see other pages where they say that it is possible.
Does anyone know if it is possible to use javascript to connect to a database (informix), and execute some procedures or queries?
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Jul 13, 2011
I am having no luck with my post form to mysql. It is only posting the first letter of the word/phrase for the text input fields to the mysql database. It is a photo and text post form. The photo and only first letter of text are posting to database. I am using Jqtouch, jquery, and phonegap.
Here is my form fields:
Here is my java script:
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Mar 7, 2006
I have the two text boxes on a form, both of which a user enters a
number. I simple need to ADD THESE UP!
I know, its daft, but no matter what I do, it just adds them together.
Example: 1+1 is clearly 2, but it outputs 11!
An example of my code:
var loan = document.loandata.loan.value;
var other = document.loandata.other.value;
total = (loan+other);
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Jan 7, 2007
I am trying to make a script that prints a date in the format Sunday
14th January 2007. Where the date that is displayed is the next sunday
3 weeks from now. For example today is 7th January. The script would
print Sunday 28th January 2007. It would read that all of this week
until next sunday when it would change to Sunday 4th February.
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