How do you wrap Laravel Eloquent ORM query scopes in parentheses when chaining?

Question

In Eloquent, I\'d like to generate this query:

SELECT * FROM table WHERE a=1 AND ( b=2 OR c=3 );

But I seem to be generating this query instead

Answer 1

Did you test whereRaw()?

so your function should look like:

function scopeIsFeaturedOrIsBlogPost($query) {
    return $query->whereRaw('( isFeatured = "true" OR type = "blogPost" )');
}

ps. this is untested

Answer 2

I'm a little late to the party, but wouldn't the most logical way be to wrap the where in a Closure?

    Model::where('a', '=', 1)
            ->where(function($query) {
                    $query->where('b', '=', 2)
                    ->orWhere('c', '>', 3);
    })
    ->get();

Answer 3

SEE EDIT FOR FINAL ANSWER

Better than raw, use orWhere with a closure:

$model = Model::whereAIsOne()->orWhere(function($query) {
    $query->where('b', 1)->where('c', 1);
})->get();

The really unfortunate thing (and the way I ended up at this post) is that the second $query used in the closure is an instance of \Illuminate\Database\Query\Builder rather than \Illuminate\Database\Eloquent\Builder - this means that you can't use the model scopes within that closure, because Query\Builder instances don't have a reference to a model.

That said, I still think this is much more ORM-like and useful as a developer.

EDIT

Took a while to figure out, but this will work if you want to use your scopes as well:

$model = Model::whereAIsOne()->orWhere(function($query) {
    $this->newEloquentBuilder($query)->setModel($this)->whereBIsOneAndCIsOne();
})->get();

I'm actually creating a fourth scope in my code that encompasses all of this, so the $this might not work in this context - however, I find that scoping for my models is one of the most important parts of building a good system.

This definitely should be built into Eloquent - the engine has a good start, but so many features are missing.

Answer 4

To wrap queries, you can do something like this:

$builder->where(function ($query) {
    $query->where('gender', 'Male')
        ->where('age', '>=', 18);
})->orWhere(function($query) {
    $query->where('gender', 'Female')
        ->where('age', '>=', 65);   
})

It will output the following query:

WHERE (gender = 'Male' and age >= 18) or (gender = 'Female' and age >= 65)

Answer 5

You can generate parentheses by passing a callback function to where().

Model::where('a',1)->where(function($query) {
    $query->where('b', 2)->orWhere('c',3);
})->get();