使用 array_merge 进行 Laravel 分页

Question

I have 2 table which name incomes and expenses and I want to show all the data in one view with laravel pagination. For this, I Merged two array with array_merge().

$incomes = Income::where('user_id', Auth::User()->id)->get()->toArray();
$expenses = Expense::where('user_id', Auth::User()->id)->get()->toArray();
foreach ($incomes as $key => $value) {
    $incomes[$key]['type'] = 'income';
}

foreach ($expenses as $key => $value) {
    $expenses[$key]['type'] = 'expense';
}

$results = array_merge($incomes, $expenses);

How can I paginate this $results?

Answer 1

You can do this in two ways:

1. Laravel's built in manually creating a paginator functionality.
2. Get the results from tables using UNION.

Using UNION

$incomes = Income::where('user_id', Auth::User()->id);
$data = Expense::where('user_id', Auth::User()->id)->union($incomes)->paginate(10);

For manually creating a paginator, please see https://laravel.com/docs/6.x/pagination#manually-creating-a-paginator

Add the following to Income Model

protected $appends = ['type'];

public function getTypeAttribute()
{
    return 'Income';
}

Add the following to Expense Model

protected $appends = ['type'];

public function getTypeAttribute()
{
    return 'Expense';
}

This will add the type key in the query results.