api.php
Route::get('/products', 'ProductsController@index');
查询:
$products = DB::table('sizes')
->join('products', 'sizes.id', '=', 'products.sizes')
->join('categories', 'products.category', '=', 'categories.id')
->select('products.*', 'categories.catname', 'categories.catimage', 'categories.catdescription', 'sizes.size')
->where([['products.is_active', '=', 1],['categories.is_active', '=', 1],])
->orderBy('products.id', 'ASC')
->paginate(5);
return $products;
Vue组件:
<div v-for="product in products.data" :key="product.id">
<h1>{{ product.name }}</h1>
</div>
<pagination :data="products" @pagination-change-page="getResults"></pagination>
methods: {
getResults(page = 1) {
this.$url.get('products/results?page=' + page)
.then(response => {
console.log(response)
this.products = response.data;
});
}
}
产品的初始负载起作用,它显示5个产品并显示分页。每当我尝试从分页中单击一个新页面时,都会遇到多个错误。
CORS(由于我的应用程序是完全公开的,所以我看不到它)和两个网络错误
from origin 'http://localhost:8080' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource
net::ERR_FAILED
Uncaught (in promise) Error: Network Error
我这里缺少什么吗?我应该创建另一个处理分页的端点,还是应该从获取初始分页的同一端点处理?
答案 0 :(得分:0)
1。将此代码复制并粘贴到新组件中,例如“ Pagination.vue”
<template>
<nav aria-label="...">
<ul class="pagination justify-content-center">
<li class="page-item" :class="{ disabled: pagination.current_page <= 1 }">
<a style="cursor:pointer" class="page-link" @click.prevent="changePage(1)" >First page</a>
</li>
<li class="page-item" :class="{ disabled: pagination.current_page <= 1 }">
<a style="cursor:pointer" class="page-link" @click.prevent="changePage(pagination.current_page - 1)"><i class="fa fa-arrow-left"></i></a>
</li>
<li class="page-item" v-for="(page,index) in pages" :key="page" :class="isCurrentPage(page) ? 'active' : ''">
<a style="cursor:pointer" class="page-link" @click.prevent="changePage(page)">{{ page }}
<span v-if="isCurrentPage(page)" class="sr-only">(current)</span>
</a>
</li>
<li class="page-item" :class="{ disabled: pagination.current_page >= pagination.last_page }">
<a style="cursor:pointer" class="page-link" @click.prevent="changePage(pagination.current_page + 1)"><i class="fa fa-arrow-right"></i></a>
</li>
<li class="page-item" :class="{ disabled: pagination.current_page >= pagination.last_page }">
<a style="cursor:pointer" class="page-link" @click.prevent="changePage(pagination.last_page)">Last Page</a>
</li>
</ul>
</nav>
</template>
<script>
export default {
props:['pagination', 'offset'],
methods: {
isCurrentPage(page){
return this.pagination.current_page === page
},
changePage(page) {
if (page > this.pagination.last_page) {
page = this.pagination.last_page;
}
this.pagination.current_page = page;
this.$emit('paginate');
}
},
computed: {
pages() {
let pages = []
let from = this.pagination.current_page - Math.floor(this.offset / 2)
if (from < 1) {
from = 1
}
let to = from + this.offset -1
if (to > this.pagination.last_page) {
to = this.pagination.last_page
}
while (from <= to) {
pages.push(from)
from++
}
return pages
}
}
}
</script>
2。在您的js/app.js
文件中全局设置
Vue.component('pagination', require('./components/Pagination.vue').default);
3。在数据下面的vue组件中,按如下所示设置分页组件,您可以尽可能多地补偿偏移量
<pagination v-if="pagination.last_page > 1"
:pagination="pagination"
:offset="7"
@paginate="getItems()">
</pagination>
4。将当前页面设置为1,
data(){
return{
items: [],
pagination: {
current_page: 1,
},
}
},
5。制定一种发送页码并收集分页数据的方法,
getItems(){
axios.get('api/items?page='+this.pagination.current_page)
.then(response => {
this.items = response.data.data;
this.pagination = response.data.meta;
});
},
6。确保返回带有资源集合的数据分页数据,
public function index(){
return new GeneralCollection(Item::with('category')->orderBy('name')->paginate(10));
}
***如果您没有收集文件,请制作一个文件,例如“ GeneralCollection”,
php artisan make:resource GeneralCollection
然后,将其包含在要返回收集的数据的控制器上,
use App\Http\Resources\GeneralCollection;
7。恭喜!