The wrong record in my database is getting updated - php

Question

im using laravel eloquent to update a record in a database table. Im passing in a parameter of 52 which is the id of the record I want to update (primary key).
I am printing the query to check which record its finding and its printing the record with the id of 13 and then when i check the table, id 13 has been updated.
protected $connection = 'sqlsrv';
protected $table = 'todo';
public $timestamps = false;
public static function complete($todoId, $userId)
{
$now = new DateTime();
$query = Self::join('todoTypes', 'todo.typeId', 'todoTypes.id')
->where('todoTypes.canComplete', 1)
->whereNull('todo.completedDate')
->find(52);
$query->where(function ($query) use ($now)
{
$query->whereNull('cancelDate')
->orWhere('cancelDate', '>', $now);
});
if ($query)
{
$query->completedDate = $now;
$query->save();
}
}

Answer 1

How about trying like this?
The query after using find did not make any sense since find returns the first object not a query builder instance.
public static function complete($todoId, $userId)
{
$now = new DateTime();
$object = Self::join('todoTypes', 'todo.typeId', 'todoTypes.id')
->where('todoTypes.canComplete', 1)
->whereNull('todo.completedDate')
->where(function ($query) use ($now) {
$query->whereNull('cancelDate')
->orWhere('cancelDate', '>', $now);
})->find(52);
if ($object) {
$object->completedDate = $now;
$object->save();
}
}

Answer 2

I have managed to fix this by just adding a select at the start
select('todo.id', 'todo.completedDate')
It seems it was getting the right row, but displaying the id as something else.
When I took out the join and the joins where clause, it worked. I suspect it was using the id of the joint row from the todoTypes table as that was 13.