Binding a table to data in jQuery Mobile - jquery-mobile

I have the following code in index.htm and main.js files of my hybrid application developed using jQuery Mobile and Icenium. I am trying to display JSON data ( array of objects) obtained from an ajax call to a web service in a HTML table. The variable holding this JSON array of objects is called 'msg' in my jQuery code below.
The problem is I am getting skewed html for the table as pasted at end of this question. How can I make sure my output is proper and not skewed?
index.html
<div id="dataDiv" ><table bgcolor="aliceblue" id="employeesTable"></table></div>
main.js
//bind the table
//1.create column headings
$("<thead><tr>").appendTo('#employeesTable');
$('<th>#</th>').appendTo('#employeesTable');
$.each(msg[0], function(key, val) {
$('<th>' + key + '</th>').appendTo('#employeesTable');
});
$('<tr></thead><tbody>').appendTo('#employeesTable');
//2.populate column data into appropriate cells
$.each(msg, function(index, val) {
$('<tr>').appendTo('#employeesTable');
$('<td>' + (index + 1) + '</td>').appendTo('#employeesTable');
$.each(msg[index], function(key, val) {
$('<td id="' + key + '">' + val + '</td>').appendTo('#employeesTable');
});
$('</tr>').appendTo('#employeesTable');
});
$('</tbody>').appendTo('#employeesTable');
SKEWED OUTPUT from above jQuery
<table bgcolor="aliceblue" id="employeesTable">
<thead>
<tr></tr>
</thead>
<th>#</th>
<th>FirstName</th>
<th>LastName</th>
<th>Age</th>
<th>YearsInJob</th>
<th>IsManager</th>
<tbody>
<tr></tr>
<tr></tr>
<tr></tr>
<tr></tr>
</tbody>
<td>1</td>
<td id="FirstName">Sunil</td>
<td id="LastName">Jha</td>
<td id="Age">28</td>
<td id="YearsInJob">6</td>
<td id="IsManager">true</td>
<td>2</td>
<td id="FirstName">Nikolay</td>
<td id="LastName">Rebello</td>
<td id="Age">35</td>
<td id="YearsInJob">6</td>
<td id="IsManager">true</td>
<td>3</td>
<td id="FirstName">Mike</td>
<td id="LastName">Newton</td>
<td id="Age">32</td>
<td id="YearsInJob">2</td>
<td id="IsManager">false</td>
<td>4</td>
<td id="FirstName">Paul</td>
<td id="LastName">Samath</td>
<td id="Age">24</td>
<td id="YearsInJob">2</td>
<td id="IsManager">false</td>
</table>

You should append to employeesTable only the thead and tbody element, then append to thead and tbody the table rows you need, and finally append to each row the cells.
To do it, just assign to a variable the elements you are creating and you will need to append some element to.
Then, append to those variables instead of employeesTable

Related

tablesorter data-math-filter returns no results when given a valid css selector

I'm using Mottie's tablesorter plugin with the Math extension. I have a conditionally formatted table - the categories of conditional formatting are indicated in a data-color attribute on the data cell.
In the footer, I have several rows that summarize the values of the conditional formatting. The footer cells are decorated with data-math-filter="[data-color='color1']".
<table>
<thead>
<tr>
<th>Column 1</th>
<th>Column 2</th>
</tr>
</thead>
<tbody>
<tr>
<td data-color='red' style='background-color:red'>
3
</td>
<td data-color='blue' style='background-color:blue'>
7
</td>
</tr>
<tr>
<td data-color='green' style='background-color:green'>
6
</td>
<td data-color='red' style='background-color:red'>
4
</td>
</tbody>
<tfoot>
<tr>
<td data-math-filter='[data-color="red"]' data-math='col-sum'></td>
<td data-math-filter='[data-color="red"]' data-math='col-sum'></td>
</tr>
<tr>
<td data-math-filter='[data-color="green"]' data-math='col-sum'></td>
<td data-math-filter='[data-color="green"]' data-math='col-sum'></td>
</tr>
<tr>
<td data-math-filter='[data-color="blue"]' data-math='col-sum'></td>
<td data-math-filter='[data-color="blue"]' data-math='col-sum'></td>
</tr>
</tfoot>
</table>
My reading of the docs leads me to believe that the math function will filter for the data-elements - but it doesn't seem to work. I've tried a bunch of different CSS filters - nothing seems to work.
What am I doing wrong?

How to display No Data when observable array is empty?

I'm new to Knockout.js and I'm trying to display data from observable array to a table.
The problem I have is it generates two tbody tags. But if I move the empty check logic into the foreach: loop, the No Data does showup at all.
Is there a better way to do this using table? I don't like to use ul or ol in this case.
<table>
<thead>
<tr>
<th>Permit</th>
<th>Region</th>
<th>Landowner</th>
</tr>
</thead>
<tbody data-bind="foreach: requestList">
<tr>
<td><span data-bind="text: permit"></span></td>
<td><span data-bind="text: region"></span></td>
<td><span data-bind="text: landowner"></span></td>
</tr>
</tbody>
<tbody data-bind="if: requestList().length === 0">
<tr>
<td colspan="3">No Data</td>
</tr>
</tbody>
</table>
When doing this we make a lot of use of virtual elements. They are outlined here http://knockoutjs.com/documentation/if-binding.html#note_using_if_without_a_container_element
The rest of your markup is fine, but you could wrap your first tbody in a virtual element like this:
<!-- ko if: requestList().length -->
<tbody data-bind="foreach: requestList">
<tr>
<td><span data-bind="text: permit"></span></td>
<td><span data-bind="text: region"></span></td>
<td><span data-bind="text: landowner"></span></td>
<td><button data-bind="click: $parent.remove">Remove</button></td>
</tr>
</tbody>
<!-- /ko -->
JSFiddle here: http://jsfiddle.net/ZKWMh/
Actually, your html markup is fine. I added the following javascript to your markup
$(document).ready(function() {
var a = [{
permit: "permit1",
region: 'region1',
landowner: 'landowner'},
{
permit: "permit2",
region: 'region2',
landowner: 'landowner2'}];
var vm = {};
vm.requestList = ko.observableArray([]);
ko.applyBindings(vm);
$('#loadData').click(function() {
var a1 = ko.mapping.fromJS(a);
var b1 = a1();
vm.requestList(b1);
});
});​
And it seems to be working as you describe how you want things to work. It is working at http://jsfiddle.net/photo_tom/xmk3P/10/

Need help: xpath query

i want to exclude the IMG Values in this table:
<table class="info">
<tbody>
<tr><th class="round-top" colspan="2">Status</th></tr>
<tr class="even">
<td class="key">Schaltprogramm aktiv</td>
<td class="value"><img height="15" src="./pics/ste-symbol_an-97b765.png"></td>
</tr>
</tbody>
</table>
I want to exclude the values in this table:
<table class="info">
<tbody>
<tr><th class="round-top" colspan="2">Warmwasser</th></tr>
<tr class="even">
<td class="key">WW-Isttemp.</td>
<td class="value">49,0 °C</td>
</tr>
<tr class="odd">
<td class="key round-leftbottom">WW-Solltemp.</td>
<td class="value round-rightbottom">46,5 °C</td>
</tr>
</tbody></table>
Here are my poorly test:
$nodelist = $xpath->query( "//tr/td[substring(#class,1,5)='value']" );
$imgs = $xpath->query("//table[#class='info']/tr/td/img");
What must i do to exclude the IMG Values in the variable "nodelist"?
Any idea?
I think (but am not certain) that you want $nodelist to contain all the td elements whose class attribute begins with the string value but not if they contain an img element.
If that's a correct interpretation of your question, change
$nodelist = $xpath->query( "//tr/td[substring(#class,1,5)='value']" );
to
$nodelist = $xpath->query( "//tr/td[substring(#class,1,5)='value'][not(img)]" );
I'm not clear what it is you want to do about the temperature values in your second sample table; you might want to edit the question to make clearer whether you want to retrieve them or not.

nokogiri and xpath -- nested looping with data set

I'm trying to loop through the elements in each but am having issues with the inner loop below. It appears to me the xpath pattern '*/td' is not returning any results. I'm expecting to see the data inside the tags printed to stdout. I'm using nokogiri.
I'm pasting this into my rails console:
require 'nokogiri'
f = File.open("public/index.html")
doc = Nokogiri::HTML(f)
f.close
doc.xpath('//*[#id="WhoIsOnDutyTableLevel4"]/tbody/tr').each do |row|
puts "row= " + row.to_s
row.xpath('*/td').each do |td|
puts "td= " + td
end
end
And here's the output from the console:
row= <tr id="208894">
<td headers="WhoIsOnDutyTableLevel1:header:1">User 1</td>
<td headers="WhoIsOnDutyTableLevel1:header:2">PERSON</td>
<td headers="WhoIsOnDutyTableLevel1:header:3">0</td>
</tr>
row= <tr id="207792">
<td headers="WhoIsOnDutyTableLevel1:header:1">User 2</td>
<td headers="WhoIsOnDutyTableLevel1:header:2">PERSON</td>
<td headers="WhoIsOnDutyTableLevel1:header:3">5</td>
</tr>
=> 0
Here's the html I'm parsing:
<table class="duty-report-level1" id="WhoIsOnDutyTableLevel1">
<caption></caption>
<thead>
<tr>
<th id="WhoIsOnDutyTableLevel1:header:1" class="duty-report-lt-header">c</th>
</tr>
</thead>
<tfoot></tfoot>
<tbody>
<tr>
<td headers="WhoIsOnDutyTableLevel1:header:1">
<table class="duty-report-level2" id="WhoIsOnDutyTableLevel2">
<caption></caption>
<thead>
<tr>
<th id="WhoIsOnDutyTableLevel1:header:1">Group Name</th><th id="WhoIsOnDutyTableLevel1:header:2">Group Time Zone</th><th id="WhoIsOnDutyTableLevel1:header:3">Default Devices</th><th id="WhoIsOnDutyTableLevel1:header:4">Supervisors</th>
</tr>
</thead>
<tfoot></tfoot>
<tbody>
<tr>
<td headers="WhoIsOnDutyTableLevel1:header:1">Team 1</td><td headers="WhoIsOnDutyTableLevel1:header:2" class="centered-text">US/Pacific</td><td headers="WhoIsOnDutyTableLevel1:header:3" class="centered-text"><img src="/static/images/icon_boolean_false.png" alt="No" border="0"></td><td headers="WhoIsOnDutyTableLevel1:header:4">
<values>
</values>Mgr 1
<br>
</td>
</tr>
<tr>
<td headers="WhoIsOnDutyTableLevel1:header:1" class="no-padding" colspan="4">
<table class="duty-report-level3" id="WhoIsOnDutyTableLevel3">
<caption></caption>
<thead>
<tr>
<th id="WhoIsOnDutyTableLevel1:header:1" class="th-left">a</th><th id="WhoIsOnDutyTableLevel1:header:2" class="">b</th>
</tr>
</thead>
<tfoot></tfoot>
<tbody>
<tr>
<td headers="WhoIsOnDutyTableLevel1:header:1" class="no-padding" colspan="2">
<table class="duty-report-level4" id="WhoIsOnDutyTableLevel4">
<caption></caption>
<thead>
<tr>
<th id="WhoIsOnDutyTableLevel1:header:1">Recipient</th><th id="WhoIsOnDutyTableLevel1:header:2">Category</th><th id="WhoIsOnDutyTableLevel1:header:3">Escalation</th>
</tr>
</thead>
<tfoot></tfoot>
<tbody>
<tr id="208894">
<td headers="WhoIsOnDutyTableLevel1:header:1">User 1</td><td headers="WhoIsOnDutyTableLevel1:header:2">PERSON</td><td headers="WhoIsOnDutyTableLevel1:header:3">0</td>
</tr>
<tr id="207792">
<td headers="WhoIsOnDutyTableLevel1:header:1">User 2</td><td headers="WhoIsOnDutyTableLevel1:header:2">PERSON</td><td headers="WhoIsOnDutyTableLevel1:header:3">5</td>
</tr>
</tbody>
</table>
</td>
</tr>
</tbody>
</table>
</td>
</tr>
</tbody>
</table>
</td>
</tr>
</tbody>
</table>
You need a minor change to your XPath:
doc.xpath('//*[#id="WhoIsOnDutyTableLevel4"]/tbody/tr').each do |row|
# puts "row= " + row.to_s
row.xpath('./td').each do |td|
puts "td= " + td.text
end
end
Which outputs:
td= User 1
td= PERSON
td= 0
td= User 2
td= PERSON
td= 5
Using ./td as the XPath for td basically means "from this point look down one".
Personally, unless you absolutely need XPath, I recommend using CSS accessors. They are more readable, and often much more simple:
doc.search('#WhoIsOnDutyTableLevel4 tbody tr').each do |row|
row.search('td').each do |td|
puts "td= " + td.text
end
end
I recommend using search instead of css or xpath and at instead of at_css or at_xpath. There is no real magic going on when you choose one over the other and you only have to remember two different methods.
The XPath expression in the inner loop is evaluated relative to each tr, so you want to use td (which selects children td elements of the context tr) and not */td (which selects grandchildren td elements).
Full code:
doc.xpath('//*[#id="WhoIsOnDutyTableLevel4"]/tbody/tr').each do |row|
puts "row= " + row.to_s
row.xpath('td').each do |td|
puts "td= " + td
end
end

TCPDF, php variable values do not appear on the saved pdf file

I created a pdf using TCPDF and I filled it with some php variables and the current date using heredoc syntax
Everything is fine when the pdf is generated and viewed in the browser, but on the saved pdf file the php variable values are not shown, only the date...
I declare my variables at the top like so:
$name = $_POST['name'];
$score = $_POST['percentage'];
$ku_number = $_POST['ku-number'];
$date = Date('d - m - Y');
Only $date is shown on the saved pdf.
Any suggestion?
Thank you
Edit: code to pass the variables to TCPDF
// Print a text
$html = <<<EOF
<!-- EXAMPLE OF CSS STYLE -->
<style>
table{
text-align:center;
color:#000;
}
</style>
<table id="name" cellpadding="0">
<tr>
<td width="10" height="80"> </td>
<td width="620"> </td>
<td width="10"> </td>
</tr>
<tr>
<td> </td>
<td width="620">$name</td>
<td> </td>
</tr>
<tr>
<td width="10"> </td>
<td> </td>
<td width="10"> </td>
</tr>
</table>
<table id="score" cellpadding="0" >
<tr>
<td width="10" height="180"> </td>
<td width="620"> </td>
<td width="10"> </td>
</tr>
<tr>
<td> </td>
<td width="620">$score</td>
<td> </td>
</tr>
<tr>
<td width="10" height="207"> </td>
<td> </td>
<td width="10"> </td>
</tr>
</table>
<table id="ku-number" cellpadding="0" >
<tr height="2">
<td width="50" height="2"></td>
<td width="620" height="2"></td>
<td width="10" height="2"></td>
</tr>
<tr>
<td> </td>
<td width="620" height="20"></td>
<td> </td>
</tr>
<tr>
<td width="50"> </td>
<td>$ku_number</td>
<td > </td>
</tr>
</table>
<table id="date" cellpadding="0" >
<tr height="2">
<td width="50" height="2"></td>
<td width="620" height="2"></td>
<td width="10" height="2"></td>
</tr>
<tr>
<td> </td>
<td width="420" height="20">$date</td>
<td> </td>
</tr>
<tr>
<td width="50"> </td>
<td></td>
<td > </td>
</tr>
</table>
EOF;
$pdf->writeHTML($html, true, false, true, false, '');
//Close and output PDF document
$pdf->Output('certificate.pdf', 'I');
I had the same problem. I found a solution by experimenting things myself mentioned as follows:
Please use concatenation to break $html string into parts. This will surely solve the problem. e.g. I used something like this:
$html = 'HTML CONTENT BREAKS HERE' . $variable_name . 'HTML CONTENT CONTINUES HERE' ;
Normally, most developers will use PHP variable within $html value,
$html = 'HTML CONTENT echo php variable HTML CONTENT' ;
I hope this will work.
Using $_SESSION to store the variables before outputting the PDF solved the problem
Credits go to Yuri Stuken
For more refined results:
Outputting the final PDF:
When you’ve finished creating all required cells, images, links, text etc. you have to call the Output() method to actually get your hands on your dynamically created PDF. This can take no parameters in which case the PDF is sent to the browser, more commonly though, developers specify the filename and the destination of the generated PDF. The destination can be one of four values, these are:
I: send the file inline to the browser.
D: send to the browser and force a file download with the name given by name.
F: save to a local file with the name given by name.
S: return the document as a string.
You can see my code sets the destination value as F:
$pdf->Output(”./pdfs/example.pdf”, “F”);
referenced from:this
Have a bAlaNCeD Life !

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