Laravel 5.3 - caching information schema queries - laravel

Question

I use multiple domains for the same site structure, so almost all tables have the domain_id column. So, to NOT define the domain_id condition every time I am using the following approach (not sure if this is the best one)
I created BaseModel that other models are extending from and have this in boot method of that BaseModel
parent::boot();
static::addGlobalScope(new DomainScope());
and here is the apply method's content according to docs
if (Schema::hasColumn($model->getTable(), 'domain_id')) {
$builder->where('domain_id', '=', DOMAIN_ID);
}
This works great, however if I have e.g. 5 find queries on the same page, to the same table (just as an example) in debug panel I see 5 queries like this
select column_name from information_schema.columns where table_schema = 'my_db_name' and table_name = 'my_table_name'
Now, I perfectly understand that to check whether the column exists in the table it gets the information from information schema, but why it is making the same query for the same table over and over again. I would presume It should make one request and then cache it, and for subsequent requests just read from cache.
q1) Does laravel internally cache this query ? I am thinking maybe because debug is enabled, that is why each time its making a query ? but cant find any verification of this
q2) and if it does not cache, can I cache it manually. I checked the laravel docs for adding a cache, but the problem here that query is not done by me, so I cant figure out to simply use Cache::remember
Thanks

Answer 1

Well, I would suggest not to fire a query for checking if domain_id exists in the table every time. You can do this by simply adding a variable to your model that defines whether the model is a multi-domain model (has a domain_id column) or single domain model (no domain_id column) like so:
// In BaseModel.php
public $multiDomain = true; // override to false in your child model class if it's a single domain model
// In DomainScope apply method
if ($model->multiDomain)) {
$builder->where('domain_id', '=', DOMAIN_ID);
}
If you don't want to use the above, you can cache like so:
if(Cache::remember($model->getTable() . "_domain", $minutes, function() use($model) {
return Schema::hasColumn($model->getTable(), 'domain_id');
}) {
$builder->where('domain_id', '=', DOMAIN_ID);
}