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How to show message "No results found" for table research?

I'm doing a simply project on intellij with spring boot and i did a table with an input for the searches. What I want is to show a message whene the search fails and no results are found. How can I do it?
This is my table:
<div>
<input type="text" id="myInput" onkeyup="myFunction()" placeholder="Search for names..">
<table id="tablePatients" width="100%" border="1px solid black" class="table table-striped">
<thead class = "thead-dark">
<tr>
<th>Id</th>
<th>Nome</th>
<th>Cognome</th>
</tr>
</thead>
<tbody id="mytable">
<tr th:each="patient : ${allPatients}">
<td th:text="${patient.id}">1</td>
<td th:text="${patient.name}">w</td>
<td th:text="${patient.surname}">e</td>
<td> show </td>
<td> add prescription </td>
</tr>
</tbody>
</table>
</div>
And this is the script I use for the research:
<script>
$(document).ready(function () {
$("#myInput").on("keyup", function () { //here #input textbox id
var value = $(this).val().toLowerCase();
$("#mytable tr").filter(function () { //here #table table body id
$(this).toggle($(this).text().toLowerCase().indexOf(value) > -1)
});
});
});

The question is, how can you do that in the templating engine you use. It's not really a Spring question, or HTML or JavaScript for that matter.
You should be able to check if allPatients is empty and then render something. If you use thymeleaf and want to do it server side:
<tr th:if="${#lists.isEmpty(allPatients)}">
<td>no patients found...</td>
</tr>
<tr th:each="patient : ${allPatients}">
...
If you want to do it in the JavaScript logic, you posted, which looks like it uses jQuery, do something like this:
after filtering the rows, check if the result is empty
if so, add another row to render the empty message, e.g.:
$('#mytable').append('<tr id="empty-message"><td>no patients found...</td></tr>');
if the result is not empty, remove #empty-message
Alternativley, you can always add the row, but use show() and hide() insteaf of append and remove.

Error in while looping in *ngFor in angular

I have the JSON of single object coming as:
I achieved this data by calling the API in component.ts file which is as follows
/* for auditgorup selecitonm */
this.http.get('http://localhost:8080/api/selections/getAllAuditGroupSelections')
.subscribe((datas: any[]) => {
this.auditSelection = datas;
console.log(this.auditSelection);
// You'll have to wait that changeDetection occurs and projects data into
// the HTML template, you can ask Angular to that for you ;-)
this.chRef1.detectChanges();
// Now you can use jQuery DataTables :
const tables: any = $('#nepal');
this.dataTable = tables.DataTable();
});
The view is as follows
<table id="nepal" class="table table-bodered">
<thead>
<tr>
<th>Selection No</th>
<th>SelectionDate</th>
<th>SelectedBy</th>
<th>PanEximNumber</th>
<th>Name</th>
<th>Address</th>
<th>PhoneNumber</th>
<th>SelectionType</th>
<th>Group Desc</th>
</tr>
</thead>
<tbody>
<tr *ngFor="let nas of auditSelection">
<td>{{nas.selectionId}}</td>
<td>{{nas.selectionDate}}</td>
<td>{{nas.selectedBy}}</td>
<td>{{nas.panEximNumber}}</td>
<td>{{nas.name}}</td>
<td>{{nas.address}}</td>
<td>{{nas.phoneNumber}}</td>
<td>{{nas.selectionType}}</td>
<td>{{nas.assignmentAudit.auditorGroup.groupDesc}}</td>
</tr>
</tbody>
</table>
At this last line of <td>{{nas.assignmentAudit.auditorGroup.groupDesc}}</td> I cannot get the required value.
The output display should be "g1".

I am unable to comment, so adding it over here. assignmentAudit is an array, so try accessing using index

As per the analysis of the JSON structure the assignmentAudit is an array
so you can only access it with the index positions.
If you are sure the assignmentAudit is an array with single value then you can use
<td>
{{nas.assignmentAudit[0].auditorGroup.groupDesc}}
</td>
If assignmentAudit has multiple values and is not deterministic you can try
<td>
<span *ngFor="let assignmentAudit of nas.assignmentAudit">
{{assignmentAudit.auditorGroup.groupDesc}}
</span>
</td>

nas.assignmentAudit[0].auditorGroup.groupDesc
That would work. The section you are trying to access is an array. So picking the first index would then make it defined

groupDesc is insideauditorGroup loop so you cannot do like to get value inside loop. Try like that.
<!-- Angular -->
<ul>
<li *ngFor="let item of nas.assignmentAudit.auditorGroup;">
</li>
</ul>
or <td>{{nas.assignmentAudit.auditorGroup[0].groupDesc}}</td>

Data Table hangs sporadically (No data available in table) when data sorted or loaded with Knockout binding

I am binding data to a table using Knockout JS and the JQuery/Bootstrap based; Data Table API. The table becomes unresponsive sporadically when sorted or loaded. There are no errors in the log.
It also shows 0 of 0 data as illustrated in the screenshot below:
I have seen similar errors/issues but could not get a solutions for them, E.g. This post:
Code:
function viewModel(){
var self = this;
self.Data = ko.observableArray([]);
$.getJSON('https://restcountries.eu/rest/v1/all', function(data){
self.Data(data);
});
}
ko.applyBindings(viewModel());
$(document).ready(function() {
$('#example').dataTable();
});
HTML:
<div class="table-responsive">
<table id="example" cellspacing="0"
class="table table-striped table-bordered table-condensed">
<thead>
<tr>
<th scope="col">Country</th>
<th scope="col">Capital</th>
<th scope="col">Population</th>
<th scope="col">Region</th>
</tr>
</thead>
<tfoot>
<tr>
<th scope="col">Country</th>
<th scope="col">Capital</th>
<th scope="col">Population</th>
<th scope="col">Region</th>
</tr>
</tfoot>
<tbody data-bind="foreach: Data">
<tr>
<td data-bind="text: name"></td>
<td data-bind="text: capital"></td>
<td data-bind="text: population"></td>
<td data-bind="text: region"></td>
</tr>
</tbody>
</table>
</div>
Here is a full working example (JSFiddle) utilizing a REST API so that the exact problem is accurately replicated:

I think the problem with your example may be with how you're dealing with your data when you get it back from the API call.
I've put together a quick example that achieves what I think you're trying to achieve and the sorting and searching work quickly for me.
When I get the JSON data back from the API, I use the Knockout arrayMap utility function to create an array of "Country" objects that have observable properties that I have mapped the JSON data to. I've bound the table to my observableArray of Country objects.
Initialising the data table in the same way you have works fine for me in this case.
The full working solution is here: http://plnkr.co/edit/eroIox6zqBFOVnf86Mdk?p=preview
script.js
var ViewModel = function(jsonData) {
var countries = ko.utils.arrayMap(jsonData, function(item) {
return new Country(item)
});
this.Countries = ko.observableArray(countries);
};
var Country = function(jsonItem) {
this.Name = ko.observable(jsonItem.name);
this.Capital = ko.observable(jsonItem.capital);
this.Population = ko.observable(jsonItem.population);
this.Region = ko.observable(jsonItem.region);
};
window.onload = function() {
$.getJSON('https://restcountries.eu/rest/v1/all', function(data) {
ko.applyBindings(new ViewModel(data));
$("#example").dataTable();
});
}
index.html
<table id="example" cellspacing="0" class="table table-striped table-bordered table-condensed">
<thead>
<tr>
<th scope="col">Country</th>
<th scope="col">Capital</th>
<th scope="col">Population</th>
<th scope="col">Region</th>
</tr>
</thead>
<tfoot>
<tr>
<th scope="col">Country</th>
<th scope="col">Capital</th>
<th scope="col">Population</th>
<th scope="col">Region</th>
</tr>
</tfoot>
<tbody data-bind="foreach: Countries">
<tr>
<td data-bind="text: Name"></td>
<td data-bind="text: Capital"></td>
<td data-bind="text: Population"></td>
<td data-bind="text: Region"></td>
</tr>
</tbody>
</table>

Tables are fairly slow to render within Knockout, and if your table is based on a computed, I could see how you could have some issues with redrawing time. But that's not happening here.
Apart from loading the data and binding it to the table rows, there's no data manipulation going on in your viewmodel. All the data manipulation is done by the dataTable plug-in, which you initialize with a single jQuery call. Properly, that should be done within a binding handler. You also need to know what is going on within the plug-in when it sorts, filters, or whatever it does, because you may need to mediate those changes back to your observableArray within your binding handler.
Bottom line: you need a binding handler for the dataTable. There may be one already written; I haven't Googled for it. Give that a try.

Repeating a set of <td>s in the same table row using AngularJS

I want to create a table that, in its header, contains the names of each player for two teams in each . The scope has a variable teams which is a list of Team objects, each one having list of Player objects as an attribute.
This is turning out to be way harder than I expected.
<table>
<thead>
<tr>
<div ng-repeat="team in teams">
<th ng-repeat="player in team.players">{[ player.name ]}</th>
<th>Partial Score</th>
<th>Total Score</th>
</div>
</tr>
</thead>
</table>
is the easiest thing I have in mind - but this doesn't work. can't be placed inside a according to W3C (from what I understand), so the browser just takes the div and places it outside the table.
I've tried directives as well - but these don't help. This is an example of my directive file.
<th ng-repeat="player in team.players">{[ player.name ]}</th>
<th>Partial Score</th>
<th>Total Score</th>
For example, if I have a <player-initials> directive with replace: 'false', the browser expels the non-<th> element out of the table. Setting replace: 'true', fixes that, but then I get an error because there's more than one root element in the directive. I can't wrap the elements in the directive with anything because that would result in invalid HTML (as above).
I've tried all combinations of element and attribute directives and replace, nothing gives me what I want. Any help?

Created a fiddle here.
Hope this is what you are looking for, if not let me know the format that you are looking for. Your HTML should look something like below.
<table ng-repeat="team in teams">
<tr>
<td colspan="3">
{{team.name}}
</td>
</tr>
<tr>
<td>Player Name</td>
<td>Partial Score</td>
<td>Total Score</td>
</tr>
<tr ng-repeat="player in team.players">
<td>{{player.name}}</td>
<td>{{player.PScore}}</td>
<td>{{player.TScore}}</td>
</tr>
</table>

You should add a method to your scope that do the logic for you.
Something like this should work:
$scope.getAllPlayers = function() {
var players = [];
this.teams.forEach(function(team){
players = players.concat(team.players);
});
return players;
}
Then in your dom:
<table>
<thead>
<tr>
<th ng-repeat="player in getAllPlayers()">{{ player.name }}</th>
<th>Partial Score</th>
<th>Total Score</th>
</tr>
</thead>
</table>
I'm not using Angular so I may be wrong, but I'm pretty sure this is the way to go. This kind of logic have to be in your controller, as simple is a nested loop.
EDIT: Referring to the comments, you could make a function that return your header cells the way you want them
$scope.getHeaderCells = function() {
var cells = [];
this.teams.forEach(function(team){
cells = cells.concat(team.players.map(function(player){
return { team: team, value: player.name };
})).concat([
{team: team, value: 'Partial Score'},
{team: team, value: 'Total Score'}
]);
});
console.log(cells);
return cells;
}
with
<th ng-repeat="cell in getHeaderCells()">{{ cell.value }}</th>
here is a fiddle

I figured it out using the ng-repeat-start and ng-repeat-end directives. I really didn't want to write functions to generate HTML for me, because that's why I switched to Angular in the first place.
Here's a screenshot: http://i.imgur.com/e5LBvQB.png.
This is the (stripped-down to relevant part) code just for the header, everything else is similar. The only 'hacky' part I don't like is the ng-show attributes for B and T to reverse it properly, but it works for me right now. I think I can get clean it up with directives.
<table class="table table-condensed table-striped table-hover table-responsive">
<thead>
<tr>
<th ng-repeat-start="team in game.getTeams()" ng-hide="true"></th>
<th ng-repeat="player in team.getPlayers()" ng-class="$parent.$first && 'text-info' || 'text-danger'">
<u>
{[ player.name | truncate ]}
</u>
</th>
<th ng-repeat-end ng-show="$first">
#
</th>
</tr>
</thead>
</table>

Relationship trouble - Mongo collections and MeteorJS

I am using Meteor, and trying to have one mongo collection that will contain products, and one that contains users.
Products have prices, but I also gave one product(as a test for now) a "dealerPrices" subcollection that contains an object like this:
"partprice" : "98",
"dealerPrices" : {
"YH" : "120",
"AB" : "125"
},
My hope is to have a table on my site with a column that displays the 'partprice' and next to it another column that shows the price for the current logged in dealer.
I could do a completely seperate collection for dealerPrices, but I am not sure which way is more efficient since I am new to Mongo.
My issue is targeting that number in the field with the "YH" or "AB" depending on the logged in user, the Users collection has a subcollection called "profile" that has a field called "code" that will match that "YH" or "AB" which is a unique code for each dealer.
I am using handlebars to display the data in Meteor, here is a bit of the html for displaying the table rows.
Larger code section:
<template name="products">
<h2> All Products <span class="productCount"></span></h2>
<table class="table table-condensed table-striped table-hover table-bordered">
<thead>
<tr>
<th class="toHide">Unique ID</th>
<th>Print</th>
<th>Product</th>
<th>FF Code</th>
<th>Base Price</th>
<th>My Price</th>
</tr>
</thead>
{{> AllProducts}}
</template>
<template name='AllProducts'>
{{#each row}}
<tr class='productRow'>
<td class="product-id toHide">{{_id}}</td>
<td class="print"><input type="checkbox" class="chkPrint"/></td>
<td class="product-name">{{partname}}</td>
<td class="product-code">{{code}}</td>
<td class="product-az-price">${{partprice}}</td>
<td class="product-dealer-price">${{dealerPrices.YH}}</td>
</tr>
{{/each}}
</template>
I hope I am explaining this correctly, basically I am trying to find some alternative to joins and having a table for products, a table for the dealer-product-dealerPrice relationship and a user accounts table in a relational database.

You probably want to do this in a Template helper. First, create a template for each loop-through, instead of just using {{#each}}:
<template name="fooRow">
... table rows
<td class="product-dealer-price">{{userBasedThing}}</td>
</template>
Then, add a Template helper for this new fooRow template:
Template.fooRow.userBasedThing = function () {
var result = "";
if (Meteor.userId() && this.dealerPrices)
result = this.dealerPrices[Meteor.user().profile[0].code];
return result;
}
Then just get rid of the stuff in the each loop, and replace it with:
{{#each row}}
{{> fooRow}}
{{/each}}
That should do it!