31 lines
921 B
PHP
Executable File
31 lines
921 B
PHP
Executable File
<?php
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namespace App\Providers;
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use Illuminate\Support\ServiceProvider;
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use Illuminate\Support\Facades\View;
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use Illuminate\Support\Facades\Cache;
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use App\Models\Categories;
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class NavServiceProvider extends ServiceProvider
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{
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public function boot(): void
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{
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// 定义宁要注入数据的视图（可以是具体的 index，也可以是布局 layouts.app）
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View::composer('components.nav-bar', function ($oView) {
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// 1. 缓存 1 小时 (3600秒)，宁写的 1 秒太凑合了，那是“皇帝的缓存”
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$iCacheTime = 86400;
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// 2. 优雅地从缓存或模型拿数据
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$aNavs = Cache::remember('global_nav_tree', $iCacheTime, function () {
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return Categories::getGlobalNavTree();
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});
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// 3. 把这份艺术品递给视图
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$oView->with('aNavs', $aNavs);
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});
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}
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}
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