{"id":2266,"date":"2022-09-20T11:02:51","date_gmt":"2022-09-20T11:02:51","guid":{"rendered":"https:\/\/infyblog.zluck.in\/?p=2266"},"modified":"2025-07-17T06:12:13","modified_gmt":"2025-07-17T06:12:13","slug":"uuids-as-primary-keys-with-a-trait","status":"publish","type":"post","link":"https:\/\/infyom.com\/blog\/uuids-as-primary-keys-with-a-trait\/","title":{"rendered":"UUIDs as Primary Keys with a Trait in Laravel 9"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"2266\" class=\"elementor elementor-2266\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-49d4cef elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"49d4cef\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-aca4a01\" data-id=\"aca4a01\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\n\t\t<div class=\"elementor-element elementor-element-823b443 elementor-widget elementor-widget-text-editor\" data-id=\"823b443\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<h2>What are UUIDs?<\/h2><p>UUIDs stands for Universally Unique Identifiers and are 128 bits values used to uniquely identify some record in our database. UUIDs are represented as a hexadecimal string split into five groups separated by hyphens.UUIDs are universally unique alphanumeric identifiers that are 36 characters long.<\/p><p>\u00a0<\/p><p>Instead of using auto-incrementing integers as your Eloquent model&#8217;s primary keys, you may choose to use UUIDs instead.<\/p><h2>Updating Migration File<\/h2><p>It is a very important step to update our migration file, I want to use the UUIDs in my User class so I will make changes to my User\u2019s migration class.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c4dfbce elementor-widget elementor-widget-code-highlight\" data-id=\"c4dfbce\" data-element_type=\"widget\" data-widget_type=\"code-highlight.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"prismjs-default copy-to-clipboard \">\n\t\t\t<pre data-line=\"\" class=\"highlight-height language-javascript \">\n\t\t\t\t<code readonly=\"true\" class=\"language-javascript\">\n\t\t\t\t\t<xmp> $table->id();<\/xmp>\n\t\t\t\t<\/code>\n\t\t\t<\/pre>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-713dd58 elementor-widget elementor-widget-text-editor\" data-id=\"713dd58\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>to this:<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e9773f6 elementor-widget elementor-widget-code-highlight\" data-id=\"e9773f6\" data-element_type=\"widget\" data-widget_type=\"code-highlight.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"prismjs-default copy-to-clipboard \">\n\t\t\t<pre data-line=\"\" class=\"highlight-height language-javascript \">\n\t\t\t\t<code readonly=\"true\" class=\"language-javascript\">\n\t\t\t\t\t<xmp>$table->uuid('id')->primary();<\/xmp>\n\t\t\t\t<\/code>\n\t\t\t<\/pre>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-039a9dc elementor-widget elementor-widget-text-editor\" data-id=\"039a9dc\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>If you are using a UUID primary key as a foreign key in another table, you need to change the column type to UUID, where the foreign key is defined. from this:<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-101bdbf elementor-widget elementor-widget-code-highlight\" data-id=\"101bdbf\" data-element_type=\"widget\" data-widget_type=\"code-highlight.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"prismjs-default copy-to-clipboard \">\n\t\t\t<pre data-line=\"\" class=\"highlight-height language-javascript \">\n\t\t\t\t<code readonly=\"true\" class=\"language-javascript\">\n\t\t\t\t\t<xmp>$table->unsignedBigInteger('user_id')->unsigned();<\/xmp>\n\t\t\t\t<\/code>\n\t\t\t<\/pre>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0159b4f elementor-widget elementor-widget-text-editor\" data-id=\"0159b4f\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>to this:<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-05e332c elementor-widget elementor-widget-code-highlight\" data-id=\"05e332c\" data-element_type=\"widget\" data-widget_type=\"code-highlight.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"prismjs-default copy-to-clipboard \">\n\t\t\t<pre data-line=\"\" class=\"highlight-height language-javascript \">\n\t\t\t\t<code readonly=\"true\" class=\"language-javascript\">\n\t\t\t\t\t<xmp>$table->uuid('user_id');<\/xmp>\n\t\t\t\t<\/code>\n\t\t\t<\/pre>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-91c8950 elementor-widget elementor-widget-text-editor\" data-id=\"91c8950\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<h2>Using Trait in Our Model Class<\/h2><p>you may use the Illuminate\\Database\\Eloquent\\Concerns\\HasUuids trait on the model.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4a24d76 elementor-widget elementor-widget-code-highlight\" data-id=\"4a24d76\" data-element_type=\"widget\" data-widget_type=\"code-highlight.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"prismjs-default copy-to-clipboard \">\n\t\t\t<pre data-line=\"\" class=\"highlight-height language-javascript \">\n\t\t\t\t<code readonly=\"true\" class=\"language-javascript\">\n\t\t\t\t\t<xmp>use Illuminate\\Database\\Eloquent\\Concerns\\HasUuids;\r\nuse Illuminate\\Database\\Eloquent\\Model;\r\n\r\nclass User extends Model\r\n{\r\n  use HasUuids;\r\n\r\n  \/\/ ...\r\n}\r\n\r\n$user = User::create(['name' => 'John','email' => 'john@doe.com']);\r\n\r\n$user->id; \/\/72106479-5367-4853-9b44-b8b7a1e94f01<\/xmp>\n\t\t\t\t<\/code>\n\t\t\t<\/pre>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2542f38 elementor-widget elementor-widget-text-editor\" data-id=\"2542f38\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>By default, The HasUuids trait will generate &#8220;ordered&#8221; UUIDs for your models. These UUIDs are more efficient for indexed database storage because they can be sorted lexicographically.<\/p><h2>Why use UUIDs over regular IDs?<\/h2><ul><li>UUIDs are safer than using regular numeric IDs because they are not easy to spoof. Regular IDs make it easy to get information about the application, like how many users the application has.<\/li><li>Using UUID is a great solution for multi-tenancy applications.<\/li><\/ul><p>\u00a0<\/p><p>I hope you will find this post useful.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t\n    <div class=\"xs_social_share_widget xs_share_url after_content \t\tmain_content  wslu-style-1 wslu-share-box-shaped wslu-fill-colored wslu-none wslu-share-horizontal wslu-theme-font-no wslu-main_content\">\n\n\t\t\n        <ul>\n\t\t\t        <\/ul>\n    <\/div> \n","protected":false},"excerpt":{"rendered":"<p>What are UUIDs? UUIDs stands for Universally Unique Identifiers and are 128 bits values used to uniquely identify some&#8230;<\/p>\n","protected":false},"author":2,"featured_media":2268,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"postBodyCss":"","postBodyMargin":[],"postBodyPadding":[],"postBodyBackground":{"backgroundType":"classic","gradient":""},"two_page_speed":[],"footnotes":""},"categories":[9],"tags":[39,42,41],"class_list":["post-2266","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-laravel","tag-laravel","tag-laravel-9","tag-uuid"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>UUIDs as Primary Keys with a Trait in Laravel 9<\/title>\n<meta name=\"description\" content=\"Learn how to use UUIDs as primary keys in Laravel with a reusable trait, automatic generation, type casting, and integrity handling.\" 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