Select query with prefix on all column elements - mysql

Question

Is it possible to create a database query in which I add a prefix to every single
column of a table. Because the tables unfortunately have "too many" columns I
would like to avoid assigning an alias to every single column.
Goal:
select table1.*, table2 Will output: table1_id, table_1_name, table2_id, table_2_name, ...
Is this possible?
That is my approach:
$data = DB::connection('mysql_wp')->table('wp_posts as p')
->selectRaw('p.*, m.*')
->join('wpao_metas as m', 'm.post_id', '=', 'p.ID')
->get();
dd($data);
But i didnt work. I got columnnames without prefixe.

Answer 1

You could use a helper function to alias the corresponding columns.
public function getColumnAliases(string $table, string $prefix = null): array
{
$prefix = $prefix ?? $table . "_";
return array_map(function ($column) use ($table, $prefix) {
return $table . "." . $column . " AS " . $prefix . $column;
}, \Illuminate\Support\Facades\DB::getSchemaBuilder()->getColumnListing($table));
}
Then in your select(...) query:
Instead of ❌:
->selectRaw('p.*, m.*')
Use this ✅:
->select(
array_merge(
$this->getColumnAliases("wp_posts"),
$this->getColumnAliases("wpao_metas")
)
)
Notes:
You may pass a custom prefix as the second argument of the getColumnAliases(...) method.