Eloquent列按键列出数组作为值？

Question

So I can do this with Eloquent:

$roles = DB::table('roles')->lists('title', 'name');

But is there a way to make Eloquent fetch an array of values for each distinct key instead of just one column?

For instance, something like the following:

$roles = DB::table('roles')->lists(['*', DB:raw('COALESCE(value, default_value)')], 'name');

Answer 1

You can use the keyBy method:

$roles = Role::all()->keyBy('name');

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If you're not using Eloquent, you can create a collection on your own:

$roles = collect(DB::table('roles')->get())->keyBy('name');

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If you're using Laravel 5.3+, the query builder now actually returns a collection, so there's no need to manually wrap it in a collection again:

$roles = DB::table('roles')->get()->keyBy('name');