how to dynamically add $scope in Angular - javascript

here is my HTML:
...
<table class="tickerTable">
<thead>
<th>Symbol</th>
<th>Accts</th>
</thead>
<tbody ng-repeat="ticker in tickers">
<tr ng-click="showTrades(ticker)">
<td >{{ticker.Ticker}}</td>
<td>{{ticker.TradeCount}}</td>
</tr>
<tr ng-show="currentItem == ticker">
<td colspan="2">{{trades}}</td>
</tr>
</tbody>
</table>
here is the controller:
$scope.showTrades = function(ticker){
$scope.trades = {};
$scope.currentItem = ticker;
$scope.trades = "this is the result of a rest call using the params from $scope.ticker";
};
the table is populated with many rows. for each row i add a blank row that is hidden by default.
when the row is clicked the hidden row displays dynamically generated content that is returned from a rest call made with the params of that particular table row's "ticker" object. the result is injected into $scope.trades and displayed in the now visible TR.
The problem: {{trades}} is being populated in every hidden row along with the revealed row. I only want it to load in the revealed row.
solution
http://plnkr.co/edit/qFZyeuIbt6z5dYEFFHzr?p=preview

In your plnkr you are using ng-if.
There is a bug relatead to ng-if in tables #3104 which will cause problems for you. Maybe you can use ng-show instead as you did in the posted HTML?
Next you may add the trades to the containing ticker. So you display the trades belonging to the current ticker. Then only the selected ticker row will have trades.
<!doctype html>
<html ng-app='portfolio'>
<head>
<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.0.5/angular.min.js">
</script>
<script src="script.js"></script>
</head>
<body>
<table ng-controller = "TickerListCtrl">
<thead>
<th>Symbol</th>
</thead>
<tbody ng-repeat="ticker in tickers">
<tr ng-click="showTrades(ticker)">
<td>{{ticker.Ticker}}</td>
</tr>
<tr >
<td ng-show="currentItem == ticker" colspan="2">{{ticker.trades}}</td>
</tr>
</tbody>
</table>
</body>
</html>
$scope.showTrades = function(ticker){
ticker.trades = "this is trades for ticker: " + ticker.Ticker;
$scope.currentItem = ticker;
};
Here is a fork of your plnkr with the described changes.

Related

Populate a form text area on table row selection - Python Flask HTML

Need help with populating a text area based on html table row selection.
In the table below, I want to extract the content of the column 'Comments' for the selected row and write into the text area 'Comment' on the same page. I have only managed to create the table but nothing else.
Below is the code I have now created from this link. What is happening now is that only the currently selected cell gets put in the text box instead of just the 'Comment' column. I want to input only in the 'Comment' column into the box regardless of the cell clicked upon in the row.
<table id="table">
<tr>
<th>Name</th>
<th>Age</th>
<th>Comments</th>
</tr>
<tbody>
<tr>
<td>John</td>
<td>42</td>
<td>avery long comment</td>
</tr>
<tr>
<td>Peter</td>
<td>35</td>
<td>another very long comment</td>
</tr>
<tr>
<td>Mary</td>
<td>54</td>
<td>some comment</td>
</tr>
</tbody>
</table>
<script>
var table = document.getElementById('table');
var selected = table.getElementsByClassName('selected');
table.onclick = highlight;
function highlight(e) {
if (selected[0]) selected[0].className = '';
e.target.parentNode.className = 'selected';
var element = document.querySelectorAll('.selected');
if (element[0] !== undefined) { //it must be selected
document.getElementById("myTextbox").value = element[0].children[0].firstChild.data
}
}
</script>
<div >
<textarea class="form-control" id="myTextbox"></textarea>
</div>
Thanks for your help.
You're getting the first column but you can get the third column with the comment by changing the index of the child to 2 instead of 0.
document.getElementById("myTextbox").value = element[0].children[2].firstChild.data

Element in div gets removed as a child but can't be used again

I am trying to display a hidden table in a div then hide it again with display: none/block toggle. It works. But, I can't get it to appear again once I toggle to display: none to hide it.
HTML:
The HTML has an empty div with id = tableContainer.
Next to it, I have a table with the names of animal families in each cell, along with a button. When the button is clicked, it takes the name of the animal family from that particular cell, finds the table of animal species with that name and switches from display: none to display:block and display it /inside the div. Then, if I click the button again, it toggles the display back to display: none.
When I click a button in another cell, it clears the div and displays the new table.
All good.
But, if I click a button that was previously used, the table that has now gone is no longer available.
I have gone through all sorts of hoops playing with removeChild and all that but no luck. I am currently using innerHTML to clear the div, but I'm missing something with the class name.
Console error says: tabletest2.html:523 Uncaught TypeError: Cannot read property 'classList' of null
at toggle (tabletest2.html:523)
at HTMLButtonElement.onclick (tabletest2.html:72)
So, it seems to me that it can't toggle any more because the table now no longer exists, or I may be wrong with that as I didn't delete the child element (I think).
<body>
<table>
<tbody>
<tr>
<td>Genus</td>
<td>Benthobatis
<button onclick="toggle(this, parentNode.firstChild)">Click me</button></td>
</tr>
<tr>
<td>Genus</td>
<td>Diplobatis
<button onclick="toggle(this, parentNode.firstChild)">Click me</button></td>
</tr>
</tbody>
</table>
<!-- <======== div display container here ================>-->
<div id="tableContainer"></div>
<table id="Benthobatis" class="hide">
<tbody>
<tr>
<th>Genus</th>
<th>Benthobatis</th>
</tr>
<tr>
<td>Benthobatis kreffti</td>
<td>Brazilian Blind Electric Ray</td>
</tr>
</tbody>
</table>
<!-- <==================================-->
<table id="Diplobatis" class="hide">
<tbody>
<tr>
<th>Genus</th>
<th> Diplobatis </th>
</tr>
<tr>
<td>Diplobatis colombiensis</td>
<td>Colombian electric ray</td>
</tr>
</tbody>
</table>
</body>
<script>
function toggle(ele, tableName) {
var myTableDisplayDiv = document.getElementById("tableContainer").childNodes;
if (myTableDisplayDiv.length != 0) {
document.getElementById("tableContainer").innerHTML = "";
}
var myTableName = tableName.textContent;
var myTable = document.getElementById(myTableName);
myTable.classList.toggle("hide");
document.getElementById("tableContainer").appendChild(
document.getElementById(myTableName)
);
}
</script>
<style>
.hide {
display: none;
}
Explanations
"Why are my tables deleted if I'm only changing display option, not removing the child node?".
This destroys everything within:
document.getElementById("tableContainer").innerHTML = "";
This moves the chosen table to #tableContainer:
document.getElementById("tableContainer").appendChild(
document.getElementById(myTableName)
So in three clicks there's nothing left. Of course this is if the table can be identified correctly which it wasn't. The .textContent of .parentNode.firstChild reference was lost because this refers to a global context not the button. This is why on-event attributes (among other various reasons) are discouraged. Although not a critical issue as the ones previously mentioned, you should seriously have some variations to the names:
tableName
myTableName
myTable
myTableDisplayDiv
tableContainer
I'm pretty sure this naming scheme did not facilitate debugging.
Solutions
Before you place a table into #tableContainer where it gets destroyed, make a copy with .cloneNode().
Remove the onclick attributes and either use onclick property (like in the demo) or .addEventListener().
Register an ancestor element of both buttons (i.e. tbody), from there both buttons can be clicked and easily isolated and referenced by using event.target.
Now the reference to the clicked button (event.target) can now be referenced:
var tableName = event.target.parentNode.firstChild.textContent
And then the table can finally be referenced:
var table = document.getElementById(tableName)
Demo
document.querySelector('tbody').onclick = toggle;
function toggle(event) {
var clicked = event.target;
if (clicked.tagName === 'BUTTON') {
var genus = clicked.parentNode.firstChild.textContent;
var table = document.querySelector('#' + genus);
var display = document.getElementById("display");
display.innerHTML = "";
var clone = table.cloneNode(true);
display.appendChild(clone);
clone.classList.toggle('hide');
}
}
.hide {
display: none;
}
<table>
<tbody>
<tr>
<td>Genus</td>
<td>Benthobatis
<button>Click me</button></td>
</tr>
<tr>
<td>Genus</td>
<td>Diplobatis
<button>Click me</button></td>
</tr>
</tbody>
</table>
<!-- <======== div display container here ================>-->
<div id="display"></div>
<table id="Benthobatis" class="hide">
<tbody>
<tr>
<th>Genus</th>
<th>Benthobatis</th>
</tr>
<tr>
<td>Benthobatis kreffti</td>
<td>Brazilian Blind Electric Ray</td>
</tr>
</tbody>
</table>
<!-- <==================================-->
<table id="Diplobatis" class="hide">
<tbody>
<tr>
<th>Genus</th>
<th> Diplobatis </th>
</tr>
<tr>
<td>Diplobatis colombiensis</td>
<td>Colombian electric ray</td>
</tr>
</tbody>
</table>
Your code is kind of complex to understand but if you just want to toggle the table, I think this is the best way.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<style>
.hide {
display: none;
}
</style>
</head>
<body>
<div class="table-container">
<button class="toggle-btn">Click me</button>
<table>
<tr>
<td>Genus</td>
<td>Benthobatis</td>
</tr>
<tr>
<td>Genus</td>
<td>Diplobatis</td>
</tr>
</table>
</div>
<script>
const table = document.querySelector('table'),
btn = document.querySelector('.toggle-btn');
btn.addEventListener("click", () => {
table.classList.toggle("hide")
})
</script>
</body>
</html>

how to hide a table row in html here the condition as row values using javaScript ? If two row values are the same then hide one

I have a html table where I need to hide one row where column value is same. like if key1 and key2 have same value then hide one row.
here each row is different, in that there are two dates whose value may be same sometimes in that case i should hide one row. the data are comming in html in json format. here duplicate does not mean that two rows are completely same, no there values are same.
<html>
<header>Hide Test</header>
<body>
<pre>
<tr>
<td>Key1</td>
<td>Value1</td>
</tr>
<tr>
<td>Key2</td>
<td>Value2</td>
</tr>
<tr>
<td>Key3</td>
<td>Value3</td>
</tr>
</pre>
</body>
</html>
You can loop over all rows, save found values in an array and if a value is already in an array you will hide it instead.
var rows = document.querySelectorAll('table tr');
var foundValues = [];
rows.forEach(function(el){
console.log(foundValues);
console.log(el.children[1].innerHTML);
if(foundValues.includes(el.children[1].innerHTML)) {
el.style.display = 'none';
}
else {
foundValues.push(el.children[1].innerHTML);
}
});
<table>
<tr>
<td>Key1</td>
<td>Value1</td>
</tr>
<tr>
<td>Key2</td>
<td>Value2</td>
</tr>
<tr>
<td>Key3</td>
<td>Value2</td>
</tr>
<tr>
<td>Key4</td>
<td>Value4</td>
</tr>
</table>
Assuming the value will always be in the second field of each row I have a solution here which should work.
//we need to check that the window has loaded so we can target the elements in the DOM.
window.onload = function(){
var seen = [];
var tableRows = document.getElementsByTagName('tr');
for(i = 0; i < tableRows.length; i++){
//get the table data for this particular table row
var tableData = tableRows[i].getElementsByTagName('td');
//the value will be contained in the second td tag of the row so we retrieve it as follows:
var value = tableData[1].innerText;
//log the value to check.
console.log(value);
if(seen[value]){
//if the value already exists hide the table row that contains this value.
tableRows[i].style.display = "none";
}else{
//add the value to the 'seen' array.
seen[value] = true;
}
}
}
You can test this with the following table where two values are the same.
<!DOCTYPE html>
<html>
<head>
<title>Hide test</title>
<script>
//javascript code goes here
</script>
</head>
<body>
<table>
<tr>
<td>Key1</td>
<td>Value1</td>
</tr>
<tr>
<td>Key2</td>
<td>Value2</td>
</tr>
<tr>
<td>Key3</td>
<td>Value1</td>
</tr>
</table>
</body>
</html>

Grouping rows in ngrepeat

I have json array and i want to create table from this and want to give a heading which is an element of array. Here is fiddle showing the scenario.
<div ng-repeat="products in items">
<div>{{products.IDTYPE}}</div>
<div>
<table border=1>
<thead>
<th>primkey</th>
<th>userid</th>
</thead>
<tbody>
<tr>
<td>{{products.PRIMKEY}}</td>
<td>{{products.USERID}}</td>
</tr>
</tbody>
</table>
</div>
This will create simple table with heading from the IDTYPE . But i want to group the rows with unique IDTYPE. So desired table will be as shown in this link.
So i tried adding a ng-show condition ng-show="$index==0 || items[$index-1].IDTYPE!=items[$index].IDTYPE" but it doesn't work properly as tbody and table will be constructed for every row.This is what i have tried.
So how to generate the table as i desired in the above description?
If you do not wish to change your source data structure to fit better to what you need, you may have to write some extra code to change it from the javascript side. Something like:
var myApp = angular.module('myApp', []);
function MyCtrl($scope) {
$scope.items = [...]; //your original data
// Here the transformation begins...
$scope.newItems = {};
for (var i = 0; i < $scope.items.length; i++) {
// We'll make it look like a map
// Each IDTYPE will have an array associated to it
if (!$scope.newItems[$scope.items[i].IDTYPE]) {
$scope.newItems[$scope.items[i].IDTYPE] = [];
}
$scope.newItems[$scope.items[i].IDTYPE].push($scope.items[i]);
}
}
From the HTML side, you just have to read accordingly to your new data:
<div ng-repeat="products in newItems">
<div>{{products[0].IDTYPE}}</div>
<div>
<table border=1>
<thead>
<th>primkey</th>
<th>userid</th>
</thead>
<tbody>
<tr ng-repeat="productItem in products">
<td>{{productItem.PRIMKEY}}</td>
<td>{{productItem.USERID}}</td>
</tr>
</tbody>
</table>
</div>
</div>
Fiddle: http://jsfiddle.net/5mpgzdem/

Multiple elements with same Id in Javascript

I have a case where a html file contains multiple elements with the same ID name.
The table row contains 5 columns of which I need to consider 2,3,4,5 columns data.
<tr id='total_row'>
<td>Total</td>
<td>%(count)s</td>
<td>%(Pass)s</td>
<td>%(fail)s</td>
<td>%(error)s</td>
<td> </td>
</tr>
I have the above code at several places in the file. I need to add the respective values using javascript.
An ID is unique in an html page. You can call it THE ID as well wrt a page. You cannot have same ID for two different tags in a single page. But you can use class instead of and ID. Know about it here
So your HTML can be like
<tr class='total_row'>
<td>Total</td>
<td>%(count)s</td>
<td>%(Pass)s</td>
<td>%(fail)s</td>
<td>%(error)s</td>
<td> </td>
</tr>
As an example with jquery you can do something like this,
<!DOCTYPE html>
<html>
<head>
<style>
</style>
</head>
<body>
<table>
<tr class="one">
<td></td>
<td></td>
</tr>
<tr class="one">
<td></td>
<td></td>
</tr>
<tr class="one">
<td></td>
<td></td>
</tr>
</table>
<script src="jquery-1.11.0.min.js"></script>
<script>
$(document).ready(function() {
$(".one").eq(0).find('td').eq(0).html("I'm tracked");
// get 1st tr and get first td
$(".one").eq(1).find('td').eq(1).html("I'm tracked");
// get 2nd tr and get second td
$(".one").eq(2).find('td').eq(0).html("I'm tracked");
// get 3rd tr and get first td
});
</script>
</body>
</html>
But I guess this approach can be tedious.
Id should be unique and if you use the same id, javascript code refers only the first element. but if you still want to use same id than you may try the below code:
$(function(){
$('[id="total_row"]').each(function(){//run for every element having 'total_row' id
var $this = $(this);
$this.find('td').eq(1).text() //to get second column data
$this.find('td').eq(1).text('dummy text') //to set second column data
});
});
You can use XHTML:
<p id="foo" xml:id="bar">
Through XHTML you can apply similar ID to multiple Controls.
Similar questions can be found here:
http://www.c-sharpcorner.com/Forums/
While duplicate IDs are invalid, they are tolerated and can be worked around. They are really only an issue when using document.getElementById.
I'll guess that the table looks like:
<table id="t0">
<tr>
<td>-<th>count<th>Pass<td>Fail<td>Error<td>
<tr>
<td>-<td>1<td>1<td>0<td>0<td>
<tr>
<td>-<td>1<td>1<td>0<td>0<td>
<tr id='total_row'>
<td>Total<td><td><td><td><td>
<tr>
<td>-<td>1<td>1<td>0<td>0<td>
<tr>
<td>-<td>1<td><td>1<td>0<td>
<tr>
<td>-<td>1<td><td>0<td>1<td>
<tr id='total_row'>
<td>Total<td><td><td><td><td>
</table>
<button onclick="calcTotals();">Calc totals</button>
If that's correct, then a function to add each sub–section can be like:
function calcTotals(){
var table = document.getElementById('t0');
var rows = table.rows;
var row, totals = [0,0,0,0];
// For every row in the table (skipping the header row)
for (var i=1, iLen=rows.length; i<iLen; i++) {
row = rows[i];
// If it's a total row, write the totals and
// reset the totals array
if (row.id == 'total_row') {
for (var j=0, jLen=totals.length; j<jLen; j++) {
row.cells[j+1].innerHTML = totals[j];
totals[j] = 0;
}
// Otherwise, add values to the totals
} else {
for (var k=0, kLen=totals.length; k<kLen; k++) {
totals[k] += parseInt(row.cells[k + 1].innerHTML) || 0;
}
}
}
}
In addition to using classes, which works but feels kind of icky to me, one can also use data-* attributes.
<tr class='total_row' data-val-row-type="totals-row">
<td>Total</td>
<td>%(count)s</td>
<td>%(Pass)s</td>
<td>%(fail)s</td>
<td>%(error)s</td>
<td> </td>
</tr>
Then, in your script (jQuery syntax -- querySelectorAll has a similar syntax)
var $totalsRows = $("[data-val-row-type='totals-row']);
When you are in a team with a separate UI designer, this keeps the UI guy from ripping out and changing your class names to fix the new design layout and it makes it quite clear that you are using this value to identify the row, not just style it.

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