Quick Tips

Schema Builder: changing table columns (only Laravel 5.0+)

While working with database migrations and schema builder, sometimes we do need to make changes to the columns that already exist. Can you do that and how?

Eloquent: filter only rows which has related “children” rows

Simple use-case: you want to filter only those categories which have at least one product. Or course, you write Category::with('products')->... but how do you filter out those empty categories? Those with no product? There's an app function for that: has().

How to customize error messages in Request Validation?

Laravel 5 has an awesome new function - Request Validation. It separates the logic of Validation into kind of a separate layer - Requests, which reside in the folder app/Http/Requests. After the form validation, it auto-magically shows error messages. But what if we want to customize them?

Did you know about view()->exists() function?

When you load a View from the Controller, there could be a situation when you don't actually know which view to load - the name could be dynamic. For example, you would use different Blade templates for sending emails. There is a neat function to assure your chosen View file actually exists.
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Why use $appends with Accessors in Eloquent?

Eloquent has a convenient feature called Accessors - you can define your own custom fields on top of existing in the database table. But then there's an Eloquent property $appends - should we use it or not? And what's the difference?

belongsTo() and withTrashed() – linking to deleted row

Let's say we have DB table products, which is linked to table categories with a field products.category_id = categories.id, Eloquent helps us to define a relation easily. But what if the category gets (soft) deleted, but we still need to have that relationship to be returned for history reasons? You can use withTrashed() method here.

Did you know: affected rows after Eloquent update

Another quick tip - if you need to know, how many rows were actually affected if you launch Eloquent update() statement - it cannot be easier.

Laravel 5.1: empty option in Form::select with lists()

There is one small upgrade in Laravel 5.1 which breaks apps with earlier versions - it is related to <select> dropdown items. For a long time, Eloquent had a useful way of passing options to Form::select() - but adding an empty parameter doesn't work in Laravel 5.1 anymore. Here's what to do.

Class ‘Form’ not found in Laravel 5?

One of the biggest confusions for people switching from Laravel 4 to Laravel 5 was using the Form class. Basically, Form::open() and related stuff...

How to customize “artisan down” page?

Artisan has a convenient command artisan down for an occasion when you need to put your web-project down for a while - for the case of deployment, maintenance or anything like that. Question - how to customize that temporary error page?

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