A dropdown in the laravel for filtering table data - laravel

Question

I want to know something in Laravel. I want a dropdown for classes so when the user selects any class and press the submit button then the users related to that specific class will be displayed below in the table... Is it possible?
Below is the code I did for getting the data but I want this data to refer to my table in the HTML because there is something more I want and I can't add those things to the ajax table
//My ajax
$(document).ready(function() {
$('select[name="students_class_id"]').on('change', function() {
var classID = $(this).val();
if(classID) {
$.ajax({
url: '/myform/ajax/'+classID,
type: "GET",
dataType: "json",
success:function(data) {
var markup = '';
$.each(data, function(key, value) {
markup += '<tr> <td>' + value.id + '</td> <td>' + value.student_id + '</td> <td>' + value.first_name+ ' ' + value.last_name + '</td> <tr>';
});
$('table[id="studentsData"]').html(markup);
}
});
}
});
});
//Controller
public function index(Request $request){
$classes = StudentsClass::pluck('class_name', 'id')->all();
return view('admin.students.attendance.index', compact( 'classes'));
}
public function mytableAjax($id) {
$students = Student::where('students_class_id', $id)->get();
return json_encode($students);
}
//My view
<select name="students_class_id" class="form-control" style="width:350px">
<option value="">--- Select State ---</option>
#foreach ($classes as $key => $value)
<option value="{{ $key }}">{{ $value }}</option>
#endforeach
</select>
<table id="studentsData" class="table table-striped table-bordered table-list-search">
<thead>
<tr>
<th>#</th>
<th>Student ID</th>
<th>Student Name</th>
<th>Attendance</th>
</tr>
</thead>
<tbody>
<tr>
<td>
<div class="form-group">
<select class="form-control" id="gender">
<option>Present</option>
<option>Absent</option>
<option>Leave</option>
</select>
</div>
</td>
</tr>
</tbody>
</table>
<a class="fas fa-folder-open btn btn-success float-right mb-4 mr-2"> Save</a>
</div>

Answer 1

Check the following code that will add the attendance column for every row :
$(document).ready(function() {
$('select[name="students_class_id"]').on('change', function() {
var classID = $(this).val();
if (classID) {
$.ajax({
url: '/myform/ajax/' + classID,
type: "GET",
dataType: "json",
success: function(data) {
var attendance = `<div class="form-group">
<select class="form-control" id="gender" name="attendance[]">
<option>Present</option>
<option>Absent</option>
<option>Leave</option>
</select>
</div>`;
var markup = '';
$.each(data, function(key, value) {
markup += '<tr> <td><input type="hidden" value="'+value.id+'" name="id[]">' + value.id + '</td> <td>' + value.student_id + '</td> <td>' + value.first_name + ' ' + value.last_name + '</td> <td> ' + attendance + '</td> <tr>';
});
$('#studentsData tbody').html(markup);
var thead_markup += '<tr> <th>A</th> <th>B</th> <th>C</th> <td>D</th> <tr>';
$('#studentsData thead').html(thead_markup);
}
});
}
});
});

Answer 2

It depends upon your code, if you are using ajax datatables api then here is a similar example:
$(document).ready(function() {
$('#example').DataTable( {
initComplete: function () {
this.api().columns().every( function () {
var column = this;
var select = $('<select><option value=""></option></select>')
.appendTo( $(column.footer()).empty() )
.on( 'change', function () {
var val = $.fn.dataTable.util.escapeRegex(
$(this).val()
);
column
.search( val ? '^'+val+'$' : '', true, false )
.draw();
} );
column.data().unique().sort().each( function ( d, j ) {
select.append( '<option value="'+d+'">'+d+'</option>' )
} );
} );
}
} );
} );
Reference: datatables.net multi filter select
If you are not using datatables api and do not want ajax then use below code and change according to your need:
$("#selectDropdown").on("change", function () {
var value = $(this).val();
$("table tr").each(function (index) {
if (index != 0) {
$row = $(this);
var id = $row.find("td:first").text();
if (id.indexOf(value) != 0) {
$(this).hide();
}
else {
$(this).show();
}
}
});
});