phalcon——Paginator分页

phalcon使用的分页器是Phalcon\Paginator。

首先先展示一个比较完整的使用例子：

控制器代码：

use Phalcon\Paginator\Adapter\Model as Paginator;
$curPage = 1;
if($this->request->isPost()) {
    $curPage = $this->request->getPost('page','int');
} else if($this->request->isGet()) {
    $curPage = $this->request->getQuery('page',"int");
}

$posts = Posts::find();
if(count($posts) == 0) {
    $this->flash->notice("目前尚无任何帖子");
}

$paginator = new Paginator(array(
    "data" => $posts,
    "limit" => 5,
    "page" => $curPage
));
$this->view->page = $paginator->getPaginate();

视图代码：

<ul class="pager">
    <li class="previous">
    </li>
    <li class="next">
        <?= $this->tag->linkTo('posts/post','发表帖子') ?>
    </li>
</ul>

<table class="table table-bordered table-striped" align="center">
    <thead>
        <tr>
            <td>标题</td>
            <td>发布者</td>
            <td>发布时间</td>
            <td>评论数量</td>
        </tr>
    </thead>

    <tbody>
        <?php foreach($page->items as $post) { ?>
            <tr>
                <td><?= $this->tag->linkTo('posts/detail?pid='.$post->id,$post->title) ?></td>
                <td><?= $post->users->username ?></td>
                <td><?= date('Y-m-d H:i:s',$post->post_time) ?></td>
                <td><?= $post->comment_num ?></td>
            </tr>
        <?php } ?>
    </tbody>

    <tbody>
        <tr>
            <td colspan="4" align="right">
                <div class="btn-group">
                    <span class="help-inline">共<?= $page->total_items ?>个帖子</span>
                    <?= $this->tag->linkTo(array('posts/index',"第一页",'class'=>'icon-fast-backward btn')) ?>
                    <?= $this->tag->linkTo(array('posts/index?page='.$page->before,"上一页",'class'=>'icon-fast-backward btn')) ?>
                    <?= $this->tag->linkTo(array('posts/index?page='.$page->next,"下一页",'class'=>'icon-fast-backward btn')) ?>
                    <?= $this->tag->linkTo(array('posts/index?page='.$page->last,"最后一页",'class'=>'icon-fast-backward btn')) ?>
                    <span class="help-inline">第<?= $page->current ?>/<?= $page->total_pages ?>页</span>
                </div>
            </td>
        </tr>
    </tbody>
</table>

该组件使用了适配器封装不同来源的数据，即“data”参数可以是一个数组，一个模型查询结果集对象，也可以是一个查询生成器，还可以使用自定义适配器。

使用例子：

use Phalcon\Paginator\Adapter\Model as PaginatorModel;

use Phalcon\Paginator\Adapter\NativeArray as PaginatorArray;

use Phalcon\Paginator\Adapter\QueryBuilder as PaginatorQueryBuilder;

// Passing a resultset as data

$paginator = new PaginatorModel(

array(

"data"  => Products::find(),

"limit" => 10,

"page"  => $currentPage

)

);

// Passing an array as data

$paginator = new PaginatorArray(

array(

"data"  => array(

array('id' => 1, 'name' => 'Artichoke'),

array('id' => 2, 'name' => 'Carrots'),

array('id' => 3, 'name' => 'Beet'),

array('id' => 4, 'name' => 'Lettuce'),

array('id' => 5, 'name' => '')

),

"limit" => 2,

"page"  => $currentPage

)

);

// Passing a querybuilder as data

$builder = $this->modelsManager->createBuilder()

->columns('id, name')

->from('Robots')

->orderBy('name');

$paginator = new PaginatorQueryBuilder(

array(

"builder" => $builder,

"limit"   => 20,

"page"    => 1

)

);

页面属性：

items：当前页面的每一项，next：下一页，last：最后一页，current：当前页面，before：上一页，total_pages：总页数，total_items：总项数。