Laravel: Handle unique on Update - php

Question

I'm using the validation for the employee records during an update. There are some fields which should be unique. But during an update of the employee records, the validation for the unique field is being done. I have researched and tried out the solution as well.
But I'm getting this error:
Error Code : 904 Error Message : ORA-00904: "ID": invalid identifier
Position : 71 Statement : select count() as aggregate from
"EMPLOYEES" where " EMAIL" = :p0 and "ID" <> :p1 Bindings :
[ad#sdfdsf.com,3336] (SQL: select count() as aggregate from
"EMPLOYEES" where " EMAIL" = ad#sdfdsf.com and "ID" <> 3336)
Here is my attempt for the solution:
public function update(Request $request, int $employee_id) {
$this->validate ( $request, [
'first_name' => "required|max:220|regex:/[a-z]/",
'middle_name' => "max:120",
'last_name' => "required|max:220|regex:/[a-z]/",
'email' => "required|unique:employees, email, $employee_id|regex:/[a-zA-Z0-9._%+-]+#[a-zA-Z0-9.-]+\.[a-zA-Z]{2,6}/",
'home_phone' => "unique:employees,home_phone, $employee_id|numeric|regex:/^[09][0-9]{8,9}$/",
'mobile' => "unique:employees,mobile, $employee_id|numeric|regex:/(9)[0-9]{9}/",
'job_id' => 'required',
'department_id' => 'required',
'group_id' => 'required',
'node' => 'required',
'branch' => 'required',
'username' => "required|unique:employees,username, $employee_id|regex:/[A-Za-z0-9][.][A-Za-z0-9]/",
'exchange_username' => "required|unique:employees,exchange_username, $employee_id|regex:/[A-Za-z0-9][.][A-Za-z0-9]/",
'extension' => "unique:employees,extension, $employee_id|numeric|regex:/[0-9]{4}/",
] );
Employee::where ('employee_id', $employee_id )->update ( $request->only ( [
'first_name',
'middle_name',
'last_name',
'email',
'address',
'home_phone',
'mobile',
'job_id',
'department_id',
'group_id',
'branch',
'node',
'name',
'username',
'type',
'exchange_username',
'toggle_ivr_access',
'extension',
'attributed_team',
'cable_team_id',
'disable',
] ) );
Session::flash ( 'message', 'The Employee is Successfully Updated.' );
return redirect ()->route ( 'employees.index' );
}

Answer 1

Forcing A Unique Rule To Ignore A Given ID:
Sometimes, you may wish to ignore a given ID during the unique check.
For example, consider an "update profile" screen that includes the
user's name, e-mail address, and location. Of course, you will want to
verify that the e-mail address is unique. However, if the user only
changes the name field and not the e-mail field, you do not want a
validation error to be thrown because the user is already the owner of
the e-mail address.
To instruct the validator to ignore the user's ID, we'll use the Rule
class to fluently define the rule. In this example, we'll also specify
the validation rules as an array instead of using the | character to
delimit the rules:
use Illuminate\Validation\Rule;
Validator::make($data, [
'email' => [
'required',
Rule::unique('users')->ignore($user->id),
],
]);

Answer 2

I figured out the mistake and successfully find out the solution. Here is the working solution in case anyone is facing the similar problem. I had to pass the employee_id of the single user whereas I was passing the employee_id of the multiple users.
public function update(Request $request, int $employee_id) {
$this->validate ( $request, [
'first_name' => "required|max:220|regex:/[a-z]/",
'middle_name' => "max:120",
'last_name' => "required|max:220|regex:/[a-z]/",
'email' => "required|unique:employees,email,".$employee_id.',employee_id|regex:/[a-zA-Z0-9._%+-]+#[a-zA-Z0-9.-]+\.[a-zA-Z]{2,6}/',
'home_phone' => "unique:employees,home_phone,$employee_id,employee_id|numeric",
'mobile' => "required|unique:employees,mobile,$employee_id,employee_id|numeric",
'job_id' => 'required',
'department_id' => 'required',
'group_id' => 'required',
'node' => 'required',
'branch' => 'required',
'username' => "required|unique:employees,username,".$employee_id.',employee_id|regex:/[A-Za-z0-9][.][A-Za-z0-9]/',
'exchange_username' => "required|unique:employees,exchange_username,".$employee_id.',employee_id|regex:/[A-Za-z0-9][.][A-Za-z0-9]/',
'extension' => "required|unique:employees,mobile,$employee_id,employee_id|numeric|regex:/[0-9]{4}/",
] );
Employee::where ('employee_id', $employee_id )->update ( $request->only ( [
'first_name',
'middle_name',
'last_name',
'email',
'address',
'home_phone',
'mobile',
'job_id',
'department_id',
'group_id',
'branch',
'node',
'name',
'username',
'type',
'exchange_username',
'toggle_ivr_access',
'extension',
'attributed_team',
'cable_team_id',
'disable',
] ) );
Session::flash ( 'message', 'The Employee is Successfully Updated.' );
return redirect ()->route ( 'employees.index' );
}