with with() is for eager loading, it means the relationship data is loaded at the time you query the parent model, where eager loading will alleviate the “N+1” query problem. Example:User -> hasMany -> Post has has() is to filter the selecting model based on a relationship. So it acts very similarly to a normalContinue reading “Laravel Eloquent: has vs with vs whereHas?”
Tag Archives: laravel
Unit Testing Laravel: InvalidArgumentException, fail to locate factory classes (Unknown formatter)
Error: Unit-Test fail to locate factory class but running the same factory in tinker (no issue in tinker). For Laravel 6.8 or above, changes were made to “Unit-Test” to not loaded the framework anymore. So, if you need to use a “Factory” you should create a test within the “Feature-Test” directory or: use this (inContinue reading “Unit Testing Laravel: InvalidArgumentException, fail to locate factory classes (Unknown formatter)”
Composer: Content-Length mismatch, received 372 bytes out of the expected 291742
When trying to update the Laravel installer using Composer, a content length mismatch exception may occur. This error is because the composer repository key for the packagist has changed from “packagist” (prior to composer V1.2.3) to “packagist.org”: Solution to this error, just change the composer default repo url: composer config -g repo.packagist composer https://packagist.org composerContinue reading “Composer: Content-Length mismatch, received 372 bytes out of the expected 291742”
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