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Tests passing Laravel v8.x PHP 8

Squire is a library of static Eloquent models for fixture data that is commonly needed in web applications, such as countries, currencies and airports. It's based on the concepts of Caleb Porzio's Sushi package.

Common use cases for Squire include:

  • Populating dropdown options, such as a country selector on an address form.
  • Attaching extra data to other models in your app, such as airport information to a Flight model. See the section on model relationships.
  • Validating user input.

Contents

Installing a Model

You can use Composer to install Squire models into your application. Each model is available in a variety of languages, and you need only install the ones you will use.

As an example, you can install the Squire\Models\Country model in English:

composer require squirephp/countries-en

A complete list of available models is below.

Using a Model

You can interact with a Squire model just like you would any other Eloquent model, except that it only handles read-only operations.

use Squire\Models\Country;

Country::all(); // Get information about all countries.

Country::find('us'); // Get information about the United States.

Country::where('name', 'like', 'a%')->get(); // Get information about all countries beginning with the letter "a".

Available Models

Squire\Models\Airline

Installation

Locale Installation Command
English composer require squirephp/airlines-en

Schema

Column Name Description Example
alias Alternative name of the airline. EasyJet Airline
call_sign Call sign of the airline. EASY
code_iata IATA code of the airline. u2
code_icao ICAO code of the airline. ezy
country_id ISO 3166-1 alpha-2 country code of the airline. gb
name Name of the airline. easyJet

Relationships

Relationship name Model
country Squire\Models\Country
continent Squire\Models\Continent

Squire\Models\Airport

Installation

Locale Installation Command
English composer require squirephp/airports-en

Schema

Column Name Description Example
code_iata IATA code of the airport. lhr
code_icao ICAO code of the airport. egll
country_id ISO 3166-1 alpha-2 country code of the airport. gb
municipality Municipality of the airport. London
name Name of the airport. London Heathrow Airport
timezone_id PHP timezone identifier of the airport. Europe/London

Relationships

Relationship name Model
country Squire\Models\Country
timezone Squire\Models\Timezone

Squire\Models\Continent

Installation

Locale Installation Command
German composer require squirephp/continents-de
English composer require squirephp/continents-en
Polish composer require squirephp/continents-pl

Schema

Column Name Description Example
code Two letter continent code. na
name Continent name. North America

Relationships

Relationship name Model
countries Squire\Models\Country
regions Squire\Models\Region
timezones Squire\Models\Timezone

Squire\Models\Country

Installation

Locale Installation Command
English composer require squirephp/countries-en
French composer require squirephp/countries-fr
German composer require squirephp/countries-de
Polish composer require squirephp/countries-pl
Spanish composer require squirephp/countries-es

Schema

Column Name Description Example
calling_code E.164 country calling code. 1
capital_city Capital city of the country. Washington
code_2 ISO 3166-1 alpha-2 country code. us
code_3 ISO 3166-1 alpha-3 country code. usa
continent_id Two letter continent code of the country. na
currency_id ISO 4217 alphabetic currency code of the country. usd
flag Unicode flag of the country. 🇺🇸
name Country name. United States

Relationships

Relationship name Model
airlines Squire\Models\Airline
airports Squire\Models\Airport
continent Squire\Models\Continent
currency Squire\Models\Currency
regions Squire\Models\Region
timezones Squire\Models\Timezone

Squire\Models\Currency

Installation

Locale Installation Command
English composer require squirephp/currencies-en

Schema

Column Name Description Example
code_alphabetic ISO 4217 alphabetic currency code. usd
code_numeric ISO 4217 numeric currency code. 840
decimal_digits Number of decimal digits to use when formatting this currency. 2
name Currency name. US Dollar
name_plural Plural currency name. US Dollars
rounding The formatting precison of this currency. 0
symbol International currency symbol. $
symbol_native Native currency symbol. $

Relationships

Relationship name Model
countries Squire\Models\Country

Formatting money

You may use the format() method on any currency model instance to format a given number in that currency:

Currency::find('usd')->format(500) // $5.00
Currency::find('usd')->format(500, true) // $500.00, converted

This functionality uses akaunting/laravel-money internally.

Squire\Models\GbCounty

Installation

Locale Installation Command
English composer require squirephp/gb-counties-en

Schema

Column Name Description Example
code ISO 3166-2 county code. gb-ess
name County name. Essex
region_id ISO 3166-2 region code of the county. gb-eng

Relationships

Relationship name Model
region Squire\Models\Region

Squire\Models\Region

Installation

Locale Installation Command
English composer require squirephp/regions-en

Schema

Column Name Description Example
code ISO 3166-2 region code. us-ny
country_id ISO 3166-1 alpha-2 country code. us
name Region name. New York

Relationships

Relationship name Model
continent Squire\Models\Continent
country Squire\Models\Country
gbCounties Squire\Models\GbCounty

Squire\Models\Timezone

Installation

Locale Installation Command
English composer require squirephp/timezones-en

Schema

Column Name Description Example
code PHP timezone identifier. America/New_York
country_id ISO 3166-1 alpha-2 country code. us
long_name Full timezone name. America/New York
name Short timezone name. New York

Relationships

Relationship name Model
airports Squire\Models\Airport
continent Squire\Models\Continent
country Squire\Models\Country

Methods

Method name Description
getOffset($dateTime) Returns the timezone offset from GMT.

Model Relationships

Implementing an Eloquent relationship between a model in your app and a Squire model is very simple. There are a couple of approaches you could take.

Using Inheritance

The simplest option is to create a new model in your app, and let it extend the Squire model. Your new app model will now behave like the original Squire model, except you can register new methods and customise it to your liking:

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Relations\HasMany;
use Squire\Models\Country as SquireCountry;

class Country extends SquireCountry
{
    public function users(): HasMany
    {
        return $this->hasMany(User::class);
    }
}

Using resolveRelationUsing()

Another option is the resolveRelationUsing() method. This allows you to dynamically register a relationship for a Squire model from anywhere in your app, for example, within a service provider:

use App\Models\User;
use Illuminate\Database\Eloquent\Relations\HasMany;
use Squire\Models\Country;

Country::resolveRelationUsing('users', function (Country $country): HasMany {
    return $country->hasMany(User::class);
});

Validation

Squire includes a validation rule for each model installed in your app. These allow you to easily validate user input to ensure that it matches a record in a specific model.

Rules can be found in the Squire\Rules namespace. To use one, simply construct a new rule class and pass in the model column name that you would like to validate against:

use Squire\Rules;

$request->validate([
    'country' => ['required', 'string', new Rules\CountryRule('name')],
]);

This code will validate the country input against the name column on the Squire\Models\Country model. If the user enters a country that does not exist, a validation error will be thrown.

Creating your own Models

Squire may not always have a model available for the information you require. In this case, you may want to create your own.

Creating a Model

Squire models are very simple classes that extend Squire\Model. Install it with:

composer require squirephp/model

Your model class should contain a single static property, $schema. This contains the column structure for your model, and should match the format of the source data.

<?php

namespace App\Models;

use Squire\Model;

class Language extends Model
{
    public static array $schema = [
        'id' => 'string',
        'name' => 'string',
    ];
}

Attaching a Model Source

Your model will require at least one data source to be registered. Each registered data source is associated with a locale. To register a data source, you will need to interact with Squire\Repository. Install it with:

composer require squirephp/repository

Inside a service provider, register an English source for your model:

<?php

namespace App\Providers;

use App\Models\Language;
use Illuminate\Support\ServiceProvider;
use Squire\Repository;

class ModelServiceProvider extends ServiceProvider
{
    public function boot(): void
    {
        Repository::registerSource(Language::class, 'en', __DIR__ . '/../../resources/squire-data/languages-en.csv');
    }
}

In this example, the /resources/squire-data/languages-en.csv file should be present in your app, and contain the English data served to the model. The column structure should match the $schema defined in your model:

id,name
de,German
en,English
fr,French
es,Spanish

Creating a Validation Rule

Rules allow you to validate user input to ensure that it matches a record in a specific model. Rule classes extend Squire\Rule. Install it with:

composer require squirephp/rule

Your rule class should contain, at minimum, a $message to be served if the validation fails, and a getQueryBuilder() method for your model.

<?php

namespace App\Rules;

use App\Models;
use Illuminate\Database\Eloquent\Builder;
use Squire\Rule;

class LanguageRule extends Rule
{
    protected string $message = 'validation.language';

    protected function getQueryBuilder(): Builder
    {
        return Models\Language::query();
    }
}

If no column is passed to your rule when it's used, id will be used by default. To customise this, override the $column property on your rule:

<?php

namespace App\Rules;

use Squire\Rule;

class Language extends Rule
{
    protected string $column = 'name';
}

Releasing a Model

Squire models, their sources, and validation rules are all simply releasable in Composer packages. To see an example of this in action, check out the squirephp/countries and squirephp/countries-en packages.

Upgrading from 2.x

If you're using any validation rules, they are now all end with Rule. This allows both the model and rule to be imported into the same class without the use of aliasing:

2.x:

use Squire\Models\Country;
use Squire\Rules\Country as CountryRule;

Country::find('us');

$request->validate([
    'country' => ['required', 'string', new CountryRule('name')],
]);

3.x:

use Squire\Models\Country;
use Squire\Rules\CountryRule;

Country::find('us');

$request->validate([
    'country' => ['required', 'string', new CountryRule('name')],
]);

All properties and methods in custom models and custom validation rules now need to have the correct types. These can be found in the relevant section of the documentation.

Breaking Changes Introduced in 3.x

  • The minimum PHP version has been bumped to v8.0, and the minimum Laravel version to v8.x.
  • Validation rules have been renamed, so they all end with Rule. This allows both the model and rule to be imported into the same class without the use of aliasing.
  • Types have been introduced to all classes. If you have created custom models and custom validation rules, properties and methods now need to use the correct types.
  • The primary key of airports is now their ICAO code. The region relationship has been removed and replaced with country. The local code has been removed.
  • Empty string values are now null.

Need Help?

🐞 If you spot a bug with this package, please submit a detailed issue, and wait for assistance.

🤔 If you have a question or feature request, please start a new discussion.

🔐 If you discover a vulnerability within the package, please review our security policy.