![]() MySQL was running on RDS, and this image was took from AWS CloudWatch.īelow, you can see the methods this package implements and also the Laravel equivalent. That said, below you can see one example of the MySQL CPU usage after deploying a change to use hasUsingJoins instead of has, in one of our client's application. You shouldn't assume this is true for every query, and you should use tools like Laravel Debugbar, Laravel Telescope or any tool of your choice to figure out what's best for YOUR use-case. Create a new pivot model from raw values returned from a query. 1 Having difficulty, even after reading the docs, to get the 'property name' from the related 'properties' table while querying for a product from the 'products' table with the pivot 'productproperties'. ![]() Performanceįirst thing to be aware here, is that the below example is one use-case where using joins over where exists is a lot more performant. The built-in, primitive cast types supported by Eloquent. Resources extend the IlluminateHttpResourcesJsonJsonResource class: php artisan make:resource UserResource. By default, resources will be placed in the app/Http/Resources directory of your application. Eloquent uses a special model called wait for it a Pivot which is found at Illuminate\Database\Eloquent\Relations\Pivot and is an inherited class from Model with some functions to deal. getDeleteQuery() Get the query builder for a delete operation on the pivot. Create a new pivot model from raw values returned from a query. This package also implements almost all Laravel methods for querying relationship existence using joins instead of where exists. To generate a resource class, you may use the make:resource Artisan command. The built-in, primitive cast types supported by Eloquent. However, it uses the where exists syntax which is not always the best and more performant choice, depending on how many records you have or the structure of your table. Querying relationship existence is a very powerful and convenient feature of Eloquent.
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