Laravel联盟与加入选项

Question

我有一个本地Php/Mysql查询，我需要转换为Laravel查询。我在laravel的世界里很新，发现它很有趣，但我在这个问题上已经超过3天了。

这里是我的家乡PHP /思想报查询

$sql = "SELECT a.employeeID, a.nric, a.fullName, b.salary, c.total_allowance, c.year, c.month, c.period, d.deptName, c.aws, c.additionals, 
      c.id, a.date_of_birth, c.total_additional 
    from employees a 
    LEFT OUTER JOIN salary b ON a.employeeID = b.employeeID 
    LEFT OUTER JOIN payrolls c ON a.employeeID = c.employeeID and year = '$presyear' and month = '$presmonth' and period = '$period' 
    LEFT OUTER JOIN department d ON a.designation = d.id 
    UNION 
    SELECT a.employeeID, a.nric, a.fullName, b.salary, c.total_allowance, c.year, c.month, c.period, d.deptName, c.aws, c.additionals, 
      c.id, a.date_of_birth, c.total_additional 
    from employees a 
    LEFT OUTER JOIN salary b ON a.employeeID = b.employeeID 
    LEFT OUTER JOIN payrolls c ON a.employeeID = c.employeeID and year != '' and month != '' and period != '' 
    LEFT OUTER JOIN department d ON a.designation = d.id 
    WHERE c.net_salary != ''"; 

它给我我想要的结果，但我不知道你们也许你想在这一个一些调整。

现在，这是因为据我可以在Lravel

$result = Payroll::select('payrolls.id','payrolls.employeeID','fullName','month','year','period','department.deptName','payrolls.aws', 
         'payrolls.adjustment','payrolls.allowances','payrolls.alencashment','payrolls.housing_allowance', 
         'payrolls.med_reimburse','payrolls.overtime_hours','payrolls.overtime_pay','payrolls.reimbursement','payrolls.tips', 
         'net_salary','payrolls.total_additional','payrolls.total_allowance','payrolls.total_deduction','payrolls.total_cpf') 
       ->join('employees', 'payrolls.employeeID', '=', 'employees.employeeID','left') 
       ->join('department', 'employees.designation', '=', 'department.id','left') 
       ->where('payrolls.year','=',$presyear) 
       ->where('payrolls.month','=',$presmonth) 
       ->where('payrolls.period','=',$period); 

让我不知道究竟是如何做到的工会和所有与外内加入如我在本地一样。

我正在使用Laravel 4.2.17

谢谢。

Answer 1

我没有证明这一点，但你可以这样做

$first = \DB::table('employees')->select(['employees.employeeID', 'employees.nric', 'employees.fullName', 'salary.salary', 'payrolls.total_allowance', 'payrolls.year', 'payrolls.month', 'payrolls.period', 'department.deptName', 'payrolls.aws', 'payrolls.additionals', 'payrolls.id', 'employees.id', 'employees.date_of_birth', 'payrolls.total_additional']) 
->leftJoin('salary', 'employees.id', '=', 'salary.employeeId') 
->leftJoin('payrolls', function($join) 
{ 
    $join->on('employees.id', '=', 'payrolls.employeeId')->on('year', '!=', '')->on('month', '!=', '')->on('period', '!=', ''); 
}) 
->leftJoin('department', 'employees.designation', '=', 'department.id') 
->where('payrolls.net_salary', '!=', ''); 


\DB::table('employees')->select(['employees.employeeID', 'employees.nric', 'employees.fullName', 'salary.salary', 'payrolls.total_allowance', 'payrolls.year', 'payrolls.month', 'payrolls.period', 'department.deptName', 'payrolls.aws', 'payrolls.additionals', 'payrolls.id', 'employees.id', 'employees.date_of_birth', 'payrolls.total_additional']) 
->leftJoin('salary', 'employees.id', '=', 'salary.employeeId') 
->leftJoin('payrolls', function($join) 
{ 
    $join->on('employees.id', '=', 'payrolls.employeeId')->on('year', '=', $presyear)->on('month', '=', $presmonth)->on('period', '=', $period); 
}) 
->leftJoin('department', 'employees.designation', '=', 'department.id')->union($first)->get(); 

见https://laravel.com/docs/4.2/queries。

如果您不能继续，您可以随时使用\ DB :: select请参阅https://laravel.com/docs/4.2/database#running-queries。