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news 2025/10/23 9:33:27

做新闻h5网站,专业网站建设费用报价,网页视频下载器免费,网站前端开发培训西安前言前面章节没看过的朋友请先从第一章开始看。这章主要写标签相关功能。后端创建迁移文件 php artisan make:migration create_tags_table编辑迁移文件 public function up() {Schema::create(tags, function (Blueprint $table) {$table->id(); // 主键，自…

前言

前面章节没看过的朋友请先从第一章开始看。这章主要写标签相关功能。

后端

创建迁移文件

php artisan make:migration create_tags_table

编辑迁移文件

public function up()
{Schema::create('tags', function (Blueprint $table) {$table->id(); // 主键，自增ID$table->string('name')->unique(); // 标签名称，唯一，如“Laravel”$table->string('slug')->unique(); // 标签别名，URL 友好，如“laravel”$table->timestamps(); // 创建时间和更新时间});
}

运行迁移

php artisan migrate

编辑种子文件database/seeders/DatabaseSeeder.php

// 创建8个标签
use App\Models\Tag;$tags = [Tag::create(['name' => 'Laravel', 'slug' => 'laravel']),Tag::create(['name' => 'Vue.js', 'slug' => 'vue']),Tag::create(['name' => 'PHP', 'slug' => 'php']),Tag::create(['name' => 'JavaScript', 'slug' => 'javascript']),Tag::create(['name' => 'MySQL', 'slug' => 'mysql']),Tag::create(['name' => 'CSS', 'slug' => 'css']),Tag::create(['name' => 'Git', 'slug' => 'git']),Tag::create(['name' => 'Docker', 'slug' => 'docker']),
];

创建模型命令

php artisan make:model Tag

编辑文件

protected $fillable = ['name', 'slug'];

创建控制器命令

php artisan make:controller TagController

编辑控制器

<?php
namespace App\Http\Controllers;use App\Models\Tag;
use Illuminate\Http\Request;
use Illuminate\Http\JsonResponse;class TagController extends Controller
{
/*** 查询所有标签（分页，支持文章计数）** @param Request $request* @return JsonResponse*/public function all(Request $request): JsonResponse{$perPage = $request->input('per_page', 10);$page = $request->input('page', 1);$search = $request->input('search');$query = Tag::withCount('articles')->orderBy('created_at', 'desc');if ($search) {$query->where(function($q) use ($search) {$q->where('name', 'like', "%{$search}%")->orWhere('slug', 'like', "%{$search}%");});}$tags = $query->paginate($perPage, ['id', 'name', 'slug'], 'page', $page);return response()->json(['data' => $tags->items(),'meta' => ['current_page' => $tags->currentPage(),'per_page' => $tags->perPage(),'total' => $tags->total(),'last_page' => $tags->lastPage(),'from' => $tags->firstItem(),'to' => $tags->lastItem(),],'links' => ['first' => $tags->url(1),'last' => $tags->url($tags->lastPage()),'prev' => $tags->previousPageUrl(),'next' => $tags->nextPageUrl(),],'message' => '成功获取标签列表',], 200);}
}