laravel 5.1雄辩的查询

Question

I got a query that works fine in PMA and I'm trying to convert it to Eloquent, but I must be missing something. Here the SQL query:

SELECT t1.* FROM ppr__child_absence t1 
LEFT JOIN ppr__children t3 ON t3.idcode=t1.child_idcode 
WHERE t1.id = (SELECT t2.id FROM ppr__child_absence t2 
    WHERE t2.child_idcode = t1.child_idcode 
    ORDER BY t2.id DESC LIMIT 1) 
AND t3.deleted_at IS NULL 
AND $input BETWEEN start AND stop;

and hes is my eloquent query:

$input = Request::all();
$pprs =
    DB::table('ppr__child_absence')
    ->join('ppr__children', function($join) {
        $join->on('ppr__children.idcode', '=', 'ppr_children_absence.child_idcode')
            ->where('ppr__child_absence.child_idcode', '=', DB::raw('SELECT t2.id FROM ppr__child_absence t2
              WHERE t2.child_idcode = ppr__child_absence.child_idcode
              ORDER BY t2.id DESC LIMIT 1'));})
            ->whereNull('ppr__children.deleted_at')
            ->whereBetween($input, array('ppr_children_absence.start','ppr_children_absence.stop'))->get();

I'm keep getting error: ErrorException in Grammar.php line 58: strtolower() expects parameter 1 to be string, array given.

Can anyone here lead me to right direction? Basically user has 1 date input with datepicker and submit button to get result according to the date chosen.

working query here with out errors but no results

$input = Request::all();
    $pprs = DB::table('ppr__child_absence')
            ->select('ppr__child_absence.*')
            ->join('ppr__children', function($join) {
            $join->on('ppr__children.idcode', '=', 'ppr__child_absence.child_idcode')
                ->where('ppr__child_absence.id', '=', DB::raw('SELECT t2.id FROM ppr__child_absence t2
                  WHERE t2.child_idcode = ppr__child_absence.child_idcode
                  ORDER BY t2.id DESC LIMIT 1'));})
                ->whereNull('ppr__children.deleted_at')
                ->where('ppr__child_absence.start', '<', $input['ppr_day'])
                ->where('ppr__child_absence.stop', '>', $input['ppr_day'])->get();

Answer 1

$input = Request::all(); stores all the input fields in an array.

You are using ->whereBetween($input,...) and the first parameter of whereBetween() is expected to be a string (the name of the table column) but you are passing an array.

You didn't give details about the input. Assuming the input contains a field called 'field', the you should use ->whereBetween($input['field'],...) instead

Answer 2

What you seem to want is not what the whereBetween method offers. When using whereBetween the logic is that you want a given column value to be between two input values. The example in the Laravel Query Builder Documentation is chosen well:

// the column 'votes' value should be between 1 and 100
$users = DB::table('users')->whereBetween('votes', [1, 100]);

What you seem to want is to make sure an input value is between two different column values. You can do that by having two separate conditions:

->where('ppr_children_absence.start', '<', $input['value'])
->where('ppr_children_absence.stop', '>', $input['value'])

This will make sure that $input['value']) is between the start and stop column values.