I'm having trouble figuring out the best approach to checking if a record exists while using an ajax. If the CNIC exists, I want to alert, "user already exists". If it doesn't exist, I want it to insert the form data into the database. I've got the jquery function that only submits data using ajax but I want to validate CNIC if it exists it gives an alert message. Any help would be appreciated. Thanks in advance.
** jquery **
$(document).ready(function() {
$("#save1").on('click', function(e) {
var cnic = $("#cnic").val();
if (cnic == '') {
alert("Kindly Enter CNIC");
return false;
}
var gender = $("#gender").val();
if (gender == '') {
alert("Kindly Enter Gender");
return false;
}
var contactno = $("#contactno").val();
if (contactno == '') {
alert("Kindly Enter Contact No");
return false;
}
var fname = $("#fname").val();
if (fname == '') {
alert("Kindly Enter Contact No");
return false;
}else{
$.ajax({
url: "/save",
type: "get",
data: $('#registrationform').serialize(),
dataType: 'json',
success: function(data) {
$("#patientid").val(data.patientid);
// console.log(data);
}
})
}
});
});
**
controller
**
<?php
namespace App\Http\Controllers;
use Haruncpi\LaravelIdGenerator\IdGenerator;
use Illuminate\Http\Request;
use App\Helpers\Helper;
use Illuminate\Support\Facades\DB;
use App\User;
use App\Models\patient;
use Illuminate\Support\Facades\Validator;
class Helpercontroller extends Controller
{
function save(Request $request)
{
$temppatientId = IdGenerator::generate(['table' => 'patients', 'length' => 5, 'prefix' =>
'22']);
$patientid = $temppatientId + 1;
$query = new patient;
$query->patientid = $patientid;
$query->fname = $fname;
$query->lname = $lname;
$query->cnic = $cnic;
$query->contactno = $contactno;
$query->gender = $gender;
$query->age = $age;
$query->dob = $dob;
$query->city = $city;
$query->address = $address;
$query->husbandname = $husbandname;
$query->fathername = $fathername;
$query->bloodgroup = $bloodgroup;
$query->maritalstatus = $maritalstatus;
$query->save();
return $query;
}
Quick way to do it is to use Validation from Laravel.
public function save(Request $request)
{
$validator = \Validator::make($request->all(), [
// I suppose your table name is 'patients'
'cnic' => 'required|unique:patients',
]);
if ($validator->fails()) {
// you can return a custom message if needed
return response()->json(['success' => false, 'errors' => $validator->errors()->all()]);
}
// ... your actuel code to save data
return response()->json(['success' => true, 'patient' => $query]);
}
And in your Ajax call:
$.ajax({
url: "/save",
type: "get",
data: $('#registrationform').serialize(),
dataType: 'json',
success: function(data) {
if (data.success === false) {
alert('User already exist !');
} else {
$("#patientid").val(data.patient.patientid);
// console.log(data.patient);
}
}
})
Respect cases of variables and don't use a GET method to POST a resource.
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