Laravel: dynamic where clause with Elouquent - laravel

Question

I am calling URL with search params which are dynamic. How could I form proper Eloquent query?
In theory:
query
query where(someParam1)
query where(someParam2)
query orderby(someParam3)
query get
I need this kind of structure so I can use where clause if param exists.
If there is some other way in Laravel, please let me know.

Answer 1

It's easy with Laravel. Just do something like this:
$query = User::query();
if ($this == $that) {
$query = $query->where('this', 'that');
}
if ($this == $another_thing) {
$query = $query->where('this', 'another_thing');
}
if ($this == $yet_another_thing) {
$query = $query->orderBy('this');
}
$results = $query->get();

Answer 2

You can just use the where statement.
For ex: on users table or User model, you want dynamic search on name, id. You can do this
$where = [];
$firstName = $request->get('first_name');
if ($firstName) $where[] = ['first_name', 'like'. '%' . $firstName . '%'];
$id = $request->get('id');
if ($id) $where[] = ['id', $id];
$users = User::where($where)->get();
By default, it will return all the users, if anything exists in $where array, it will apply the where condition on that.

Answer 3

You can use like this
$validateUserDetail = User::query();
if (!empty($userDetails['email'])) {
$validateUserDetail->whereemail($userDetails['email']);
}if (!empty($userDetails['cellphone'])) {
$validateUserDetail->wherecellphone($userDetails['cellphone']);
}
$validateUserDetail->select('username');
$validateUserDetail->get()

Answer 4

You can pass dynamic value by below example
$user_auctions = $this->with('userAuctions')
->where('users.id', '=', $id)
->get();

Answer 5

I came here from Google. If you are going to be iterating over more then 5 if statements, its more effective to use a switch statement
if(empty($request->except('_token')))
return 'false';
$models = Vehicle::query();
$request_query = $request->all();
$year_switch = false;
foreach ($request_query as $key => $field_value){
if($field_value != 'any'){
switch($field_value){
case 'X':
case 'Y':
$year_switch = true;
break;
case'Z':
//Dynamic
$models->where($key,'LIKE', $field_value);
break;
}
}
}

Answer 6

You can pass a callback to the where function.
So, you can do something like this:
class TestService {
TestRepository $testeRepository;
public function __construct(TesteRepository $teste) {
$this->testeRepository = $teste;
}
public function getAll(array $filters)
{
$where = function (Builder $query) use ($filters) {
collect($filters)
->each(function ($value, $param) use ($query) {
if ($param === 'test') {
$query->where($param, '=', $value);
} else if ($param === 'test2') {
$query->orWhere($param, '>', $value);
}
});
};
return $this->testRepository->gelAll($where);
}
class TestRepository
{
public function getAll(\Closure $where)
{
$query = TestModel::query();
$query->where($where);
//and put more stuff here, like:
//$query->limit(15)->offset(30)
...
return $query->get();
}
}
And in your controller you pass the filters:
class TestControler ...
{
public function $index()
{
$filters = request()->query();
return $this->testService->getAll($filters);
}
}