{"id":3313,"date":"2025-01-12T12:55:18","date_gmt":"2025-01-12T15:55:18","guid":{"rendered":"https:\/\/thiagorossi.com.br\/blog\/?p=3313"},"modified":"2025-12-12T11:17:59","modified_gmt":"2025-12-12T14:17:59","slug":"eloquent-factories","status":"publish","type":"post","link":"https:\/\/thiagorossi.com.br\/blog\/eloquent-factories\/","title":{"rendered":"Eloquent Factories"},"content":{"rendered":"<span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Tempo de leitura: <\/span> <span class=\"rt-time\"> 4<\/span> <span class=\"rt-label rt-postfix\">minutos<\/span><\/span>\n<p class=\"has-medium-font-size wp-block-paragraph\"><strong>Eloquent Factories<\/strong>: O desenvolvimento e teste de aplica\u00e7\u00f5es Laravel exigem dados de teste consistentes e realistas. As <strong>Laravel Eloquent Factories<\/strong> s\u00e3o classes poderosas que definem <em>blueprints<\/em> (modelos) para seus <em>Models<\/em> Eloquent, permitindo a gera\u00e7\u00e3o de inst\u00e2ncias de <em>Models<\/em> com dados fict\u00edcios de forma r\u00e1pida e controlada, gra\u00e7as \u00e0 integra\u00e7\u00e3o com a biblioteca <strong>Faker PHP<\/strong>.<\/p>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\">Este artigo explora como definir, personalizar e utilizar as Factories para gerar dados complexos, incluindo relacionamentos.<\/p>\n\n\n\n<div style=\"height:35px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading has-large-font-size\">1. \u2699\ufe0f Defini\u00e7\u00e3o B\u00e1sica de uma Factory<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">A. Gera\u00e7\u00e3o<\/h3>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\">Para criar uma Factory (ex: para o Model <code>User<\/code>), use o Artisan:<\/p>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\">Bash<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>php artisan make:factory UserFactory --model=User\n# O --model=User \u00e9 opcional, mas define a propriedade $model na factory\n<\/code><\/pre>\n\n\n\n<div style=\"height:35px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">B. O M\u00e9todo <code>definition()<\/code><\/h3>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\">A l\u00f3gica central da Factory est\u00e1 no m\u00e9todo <code>definition()<\/code>, onde voc\u00ea retorna um array de atributos. Use o helper <code>fake()<\/code> para acessar os m\u00e9todos da biblioteca Faker.<\/p>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\">PHP<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ database\/factories\/UserFactory.php\nuse Illuminate\\Support\\Str;\nuse Illuminate\\Support\\Facades\\Hash;\n\nclass UserFactory extends Factory\n{\n    \/\/ Define o estado padr\u00e3o (default state) do Model\n    public function definition(): array\n    {\n        return &#91;\n            'name' =&gt; fake()-&gt;name(),\n            'email' =&gt; fake()-&gt;unique()-&gt;safeEmail(),\n            'email_verified_at' =&gt; now(),\n            \/\/ Hash::make('password') garante uma senha segura e consistente\n            'password' =&gt; Hash::make('password'), \n            'remember_token' =&gt; Str::random(10),\n        ];\n    }\n}\n<\/code><\/pre>\n\n\n\n<div style=\"height:35px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading has-large-font-size\">2. \ud83d\ude80 Criando Inst\u00e2ncias de Models<\/h2>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\">As Factories s\u00e3o acessadas atrav\u00e9s do m\u00e9todo est\u00e1tico <code>factory()<\/code> do <em>Model<\/em>.<\/p>\n\n\n\n<figure class=\"wp-block-table has-medium-font-size\"><table class=\"has-fixed-layout\"><thead><tr><td><strong>M\u00e9todo<\/strong><\/td><td><strong>A\u00e7\u00e3o<\/strong><\/td><td><strong>Descri\u00e7\u00e3o<\/strong><\/td><\/tr><\/thead><tbody><tr><td><strong><code>make()<\/code><\/strong><\/td><td>Cria <em>Models<\/em> em mem\u00f3ria<\/td><td>Retorna inst\u00e2ncias do <em>Model<\/em> (<code>App\\Models\\User<\/code>), mas <strong>n\u00e3o<\/strong> persiste no banco de dados.<\/td><\/tr><tr><td><strong><code>create()<\/code><\/strong><\/td><td>Cria <em>Models<\/em> e salva no DB<\/td><td>Cria inst\u00e2ncias do <em>Model<\/em> e as <strong>persiste<\/strong> no banco de dados.<\/td><\/tr><tr><td><strong><code>factory(N)<\/code><\/strong><\/td><td>Cria N inst\u00e2ncias<\/td><td>Pode ser usado com <code>make()<\/code> ou <code>create()<\/code>. Ex: <code>User::factory(5)-&gt;create();<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<div style=\"height:35px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Sobrescrevendo Atributos:<\/strong><\/p>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\">Voc\u00ea pode passar um array para <code>make()<\/code> ou <code>create()<\/code> para sobrescrever os atributos definidos no <code>definition()<\/code>.<\/p>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\">PHP<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ Cria um usu\u00e1rio com dados fict\u00edcios, mas com email e nome espec\u00edficos\n$user = User::factory()-&gt;create(&#91;\n    'name' =&gt; 'Jo\u00e3o Silva',\n    'email' =&gt; 'joao.silva@teste.com',\n]);\n<\/code><\/pre>\n\n\n\n<div style=\"height:35px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading has-large-font-size\">3. \ud83d\udea6 Definindo e Usando Estados<\/h2>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\">Os <strong>Estados<\/strong> (<code>States<\/code>) permitem definir varia\u00e7\u00f5es na sa\u00edda da sua Factory, tornando-a reutiliz\u00e1vel.<\/p>\n\n\n\n<div style=\"height:35px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">A. Defini\u00e7\u00e3o de um Estado<\/h3>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\">Os m\u00e9todos de estado devem retornar o resultado do m\u00e9todo <code>state()<\/code>.<\/p>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\">PHP<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>class UserFactory extends Factory\n{\n    \/\/ ... definition() ...\n\n    \/**\n     * Indica que o usu\u00e1rio \u00e9 um administrador.\n     *\/\n    public function admin(): static\n    {\n        return $this-&gt;state(fn (array $attributes) =&gt; &#91;\n            'is_admin' =&gt; true,\n        ]);\n    }\n}\n<\/code><\/pre>\n\n\n\n<div style=\"height:35px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">B. Uso de Estados<\/h3>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\">PHP<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ Cria 1 usu\u00e1rio administrador e 10 usu\u00e1rios normais\n$admin = User::factory()-&gt;admin()-&gt;create();\n$users = User::factory(10)-&gt;create(); \n<\/code><\/pre>\n\n\n\n<div style=\"height:35px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading has-large-font-size\">4. \ud83d\udd17 Factories e Relacionamentos<\/h2>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\">As Factories brilham ao lidar com relacionamentos, permitindo a cria\u00e7\u00e3o de gr\u00e1ficos de dados complexos com facilidade.<\/p>\n\n\n\n<div style=\"height:35px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">A. Criando o Relacionamento <code>BelongsTo<\/code> (Chave Estrangeira)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">No <em>Model<\/em> filho (Post), defina a chave estrangeira (<code>user_id<\/code>) para que a Factory do <em>Model<\/em> pai (<code>User<\/code>) seja executada.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">PHP<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ database\/factories\/PostFactory.php\nuse App\\Models\\User;\n\nclass PostFactory extends Factory\n{\n    public function definition(): array\n    {\n        return &#91;\n            \/\/ Isso garante que um User ser\u00e1 criado e seu ID ser\u00e1 usado aqui.\n            'user_id' =&gt; User::factory(), \n            'title' =&gt; fake()-&gt;sentence(),\n            'body' =&gt; fake()-&gt;paragraph(),\n        ];\n    }\n}\n\n\/\/ Ao executar:\n$post = Post::factory()-&gt;create(); \/\/ Cria 1 Post E 1 User.\n<\/code><\/pre>\n\n\n\n<div style=\"height:35px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">B. Criando Relacionamentos Aninhados com <code>has()<\/code><\/h3>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\">Para criar um <em>Model<\/em> e seus relacionamentos <code>HasMany<\/code> ou <code>HasOne<\/code>, use o m\u00e9todo <code>has()<\/code>.<\/p>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\">PHP<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ Cria 1 usu\u00e1rio e 5 posts relacionados a ele.\n$user = User::factory()\n            -&gt;has(Post::factory(5)) \n            -&gt;create();\n\n\/\/ Cria 1 post, 3 coment\u00e1rios e 1 tag relacionada a este post.\n$post = Post::factory()\n            -&gt;has(Comment::factory(3))\n            -&gt;has(Tag::factory())\n            -&gt;create();\n<\/code><\/pre>\n\n\n\n<div style=\"height:35px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">C. Relacionamentos Aninhados Complexos (Seeding)<\/h3>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\">O Seeder \u00e9 o local ideal para gerar grandes volumes de dados aninhados para o ambiente de desenvolvimento.<\/p>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\">PHP<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ database\/seeders\/DatabaseSeeder.php\nuse App\\Models\\User;\nuse App\\Models\\Post;\nuse App\\Models\\Comment;\nuse Illuminate\\Database\\Seeder;\n\nclass DatabaseSeeder extends Seeder\n{\n    public function run(): void\n    {\n        \/\/ Cria 10 usu\u00e1rios. Para cada usu\u00e1rio, cria de 1 a 3 posts.\n        \/\/ Para cada post, cria de 2 a 5 coment\u00e1rios.\n        User::factory(10)-&gt;create()-&gt;each(function (User $user) {\n            Post::factory(rand(1, 3))\n                -&gt;has(Comment::factory(rand(2, 5)))\n                -&gt;create(&#91;'user_id' =&gt; $user-&gt;id]);\n        });\n    }\n}\n<\/code><\/pre>\n\n\n\n<div style=\"height:35px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading has-large-font-size\">\u2705 Conclus\u00e3o Eloquent Factories<\/h2>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\"><strong>Eloquent Factories<\/strong>: As <strong>Eloquent Factories<\/strong> s\u00e3o indispens\u00e1veis para o desenvolvimento e teste no Laravel. Elas garantem que voc\u00ea possa gerar dados fict\u00edcios <strong>realistas<\/strong> e <strong>consistentes<\/strong> de forma program\u00e1tica. Ao dominar a defini\u00e7\u00e3o de <strong>Estados<\/strong> e a cria\u00e7\u00e3o de <strong>Relacionamentos Aninhados<\/strong> (<code>has()<\/code>), voc\u00ea melhora drasticamente a efici\u00eancia do seu <em>workflow<\/em>, especialmente na escrita de testes de integra\u00e7\u00e3o e no <em>seeding<\/em> do seu banco de dados de desenvolvimento.<\/p>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\">Mas antes de dominar o Laravel, se for o seu caso, toda jornada tem um in\u00edcio. Vamos entender quais s\u00e3o os conhecimentos b\u00e1sicos necess\u00e1rios para aproveitar ao m\u00e1ximo este poderoso framework. Para iniciar seus estudos no Laravel, voc\u00ea precisar\u00e1 dominar as seguintes tecnologias:<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"\/category\/html\"><img loading=\"lazy\" decoding=\"async\" width=\"758\" height=\"426\" src=\"https:\/\/thiagorossi.com.br\/blog\/wp-content\/uploads\/2024\/04\/html.webp\" alt=\"HTML\" class=\"wp-image-600\" srcset=\"https:\/\/thiagorossi.com.br\/blog\/wp-content\/uploads\/2024\/04\/html.webp 758w, https:\/\/thiagorossi.com.br\/blog\/wp-content\/uploads\/2024\/04\/html-300x169.webp 300w\" sizes=\"auto, (max-width: 758px) 100vw, 758px\" \/><\/a><figcaption class=\"wp-element-caption\">HTML<\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"\/category\/css\"><img loading=\"lazy\" decoding=\"async\" width=\"758\" height=\"426\" src=\"https:\/\/thiagorossi.com.br\/blog\/wp-content\/uploads\/2024\/04\/Capa-Artigos-Linux.webp\" alt=\"CSS\" class=\"wp-image-702\" srcset=\"https:\/\/thiagorossi.com.br\/blog\/wp-content\/uploads\/2024\/04\/Capa-Artigos-Linux.webp 758w, https:\/\/thiagorossi.com.br\/blog\/wp-content\/uploads\/2024\/04\/Capa-Artigos-Linux-300x169.webp 300w\" sizes=\"auto, (max-width: 758px) 100vw, 758px\" \/><\/a><figcaption class=\"wp-element-caption\">CSS<\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"\/category\/javascript\"><img loading=\"lazy\" decoding=\"async\" width=\"758\" height=\"426\" src=\"https:\/\/thiagorossi.com.br\/blog\/wp-content\/uploads\/2024\/04\/javascript.webp\" alt=\"Javascript\" class=\"wp-image-804\" srcset=\"https:\/\/thiagorossi.com.br\/blog\/wp-content\/uploads\/2024\/04\/javascript.webp 758w, https:\/\/thiagorossi.com.br\/blog\/wp-content\/uploads\/2024\/04\/javascript-300x169.webp 300w\" sizes=\"auto, (max-width: 758px) 100vw, 758px\" \/><\/a><figcaption class=\"wp-element-caption\">JavaScript<\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"\/category\/sql\"><img loading=\"lazy\" decoding=\"async\" width=\"758\" height=\"426\" src=\"https:\/\/thiagorossi.com.br\/blog\/wp-content\/uploads\/2024\/05\/Capa-Artigos-2.webp\" alt=\"SQL\" class=\"wp-image-942\" srcset=\"https:\/\/thiagorossi.com.br\/blog\/wp-content\/uploads\/2024\/05\/Capa-Artigos-2.webp 758w, https:\/\/thiagorossi.com.br\/blog\/wp-content\/uploads\/2024\/05\/Capa-Artigos-2-300x169.webp 300w\" sizes=\"auto, (max-width: 758px) 100vw, 758px\" \/><\/a><figcaption class=\"wp-element-caption\">SQL<\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"\/category\/php\"><img loading=\"lazy\" decoding=\"async\" width=\"758\" height=\"426\" src=\"https:\/\/thiagorossi.com.br\/blog\/wp-content\/uploads\/2024\/11\/Capa-PHP.png\" alt=\"Capa Curso PHP\" class=\"wp-image-2835\" srcset=\"https:\/\/thiagorossi.com.br\/blog\/wp-content\/uploads\/2024\/11\/Capa-PHP.png 758w, https:\/\/thiagorossi.com.br\/blog\/wp-content\/uploads\/2024\/11\/Capa-PHP-300x169.png 300w\" sizes=\"auto, (max-width: 758px) 100vw, 758px\" \/><\/a><figcaption class=\"wp-element-caption\">PHP<\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\">E se voc\u00ea gosta do nosso conte\u00fado, n\u00e3o deixe de contribuir adquirindo os servi\u00e7os e produtos dos nossos apoiadores e empresas que somos associados:<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/hostinger.com.br\/?REFERRALCODE=1THIAGO62\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"250\" src=\"https:\/\/thiagorossi.com.br\/blog\/wp-content\/uploads\/2024\/03\/hostinger.png\" alt=\"Hospedagem Hostinger\" class=\"wp-image-92\"\/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/amzn.to\/3SNDYlc\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"250\" src=\"https:\/\/thiagorossi.com.br\/blog\/wp-content\/uploads\/2024\/08\/ofertas-amazon.webp\" alt=\"Ofertas Amazon\" class=\"wp-image-1308\"\/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/amzn.to\/3SNKmt0\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"250\" src=\"https:\/\/thiagorossi.com.br\/blog\/wp-content\/uploads\/2024\/08\/amazonprime.webp\" alt=\"Amazon Prime\" class=\"wp-image-1307\"\/><\/a><\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Tempo de leitura: <\/span> <span class=\"rt-time\"> 4<\/span> <span class=\"rt-label rt-postfix\">minutos<\/span><\/span>Eloquent Factories: O desenvolvimento e teste de aplica\u00e7\u00f5es Laravel exigem dados de teste consistentes e&#8230;<\/p>\n","protected":false},"author":1,"featured_media":1642,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18],"tags":[],"class_list":["post-3313","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-laravel","wpcat-18-id"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Eloquent Factories - BLOG THIAGO ROSSI<\/title>\n<meta name=\"description\" content=\"Eloquent Factories: Este artigo explora em detalhes o uso de laravel eloquent factories, desde a defini\u00e7\u00e3o b\u00e1sica at\u00e9 a cria\u00e7\u00e3o de ...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/thiagorossi.com.br\/blog\/eloquent-factories\/\" \/>\n<meta property=\"og:locale\" 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