javascript - 不使用 Material 的 Angular 8 分页自定义

Question

我想在不使用 Material 库的情况下在 Angular 8 项目中进行分页。我收到一个包含 10 个数据行、第一页链接、最后一页链接和总页数的数组。

服务器响应:

{
    data : [
        {name: 'abc': id: 1},
        {name: 'abc': id: 2},
        {name: 'abc': id: 3},
        {name: 'abc': id: 4}
    ],
    first_page_url: "http://example.com/api/data?page=1"
    from: 1,
    last_page: 5,
    last_page_url: "http://example.com/api/data?page=5",
    next_page_url: "http://example.com/api/data?page=2",
    path: "http://example.com/api/data",
    per_page: 30,
    prev_page_url: null,
    to: 30,
    total: 123,
}

如何使分页正常工作？

Answer 1

实际上我是通过 vanilla js 为我的 laravel(bootstrap)应用程序做的..

@yasirali 你拥有几乎所有的东西..只有 current_page 变量丢失..

我认为它会帮助你...

注意: 您可以通过减去表单 next_page_url 轻松获取当前页码 (current_page ) :http://example.com/api/data?page=5

var last_page_url = "http://example.com/api/data?page=5";
   var last_page = last_page_url.split("=");
   
  var  next_page_url = 'http://example.com/api/data?page=1';
  var current_page = next_page_url.split("=");
  
  if(current_page[1] != 1 || current_page[1] != last_page[1]){
    current_page = current_page[1] - 1; 
  }else if (current_page[1] == last_page[1]){
    current_page = last_page[1]; 
  }else if (current_page[1] == 1){
    current_page = 1; 
  }

如果你在最后一页或第一页 next_page_url 或 last_page_url 你不需要减去

注意:如果您在最后一页或第一页.. 然后检查您现在得到什么 next_page_url 或 last_page_url url。 . 如果你得到 null 然后根据你的需要应用你的条件......(在 laravel 应用程序中我得到 null)......

 function paginate (data){
            let pagination = '';
            let cDisabled = data.prev_page_url == null ? 'disabled' : '';
            let lDisabled = data.next_page_url == null ? 'disabled' : '';

            let start = ( data.current_page -2 )  > 0 ?  (data.current_page -2)  : 1 ;
            let last = Math.ceil(data.total /data.per_page) ;
            let end = ((data.current_page +2)  < last)  ?  (data.current_page +2 ) : last ;
            pagination += `
                       <li class="page-item ${cDisabled}"><a class="page-link" href="${data.first_page_url}">First</a></li>
                       <li class="page-item ${cDisabled}"><a class="page-link" href="${data.prev_page_url}">Previous</a></li>
               `;
          
            if(   start > 1   ){
                pagination +=    `
                <li class="page-item ${cDisabled}"><a class="page-link" href="${data.first_page_url}">1</a></li>
                <li class="page-item "><a class="page-link" href="#" >...</a></li>
                    
                    `;
                }  

                for(let i= start ; i <= end ; i++){
                    var active = data.current_page == i ? 'active' : false;
              
                    pagination += ` 
                        <li class="page-item ${active}"><a class="page-link" href="${data.path}?page=${i}">${i}</a></li>
                        `;
                }
             

            if(end < last){
                pagination +=    `
                <li class="page-item ${lDisabled}"><a class="page-link" href="#">...</a></li>
                <li class="page-item ${lDisabled}"><a class="page-link" href="${data.last_page_url}">${last }</a></li>
                    
                    `;
                }     

            pagination  += `      
                            <li class="page-item ${lDisabled}"><a class="page-link" href="${data.next_page_url}">Next</a></li>
                            <li class="page-item ${lDisabled}"><a class="page-link" href="${data.last_page_url}">Last</a></li> 
                            `;                      
            document.getElementById("pagination").innerHTML = pagination;   
        }