lianjie_admin/app/Admin/Widgets/Charts/OrderGoodsActivityTotalChart.php

<?php

namespace App\Admin\Widgets\Charts;

use App\Admin\Common\Auth;
use App\Admin\Repositories\v3\GoodsActivityReport;
use Dcat\Admin\Admin;
use Dcat\Admin\Support\JavaScript;
use Dcat\Admin\Widgets\Metrics\Bar;
use Illuminate\Http\Request;

class OrderGoodsActivityTotalChart extends Bar
{ 
    /**
     * 活动商品总数
     */
    protected $categories = [];
    protected $data = [];
    protected $total = [];
    protected $valueData = [];
    protected $GoodsActivityReport = null;
    protected $showNumber = 7;

    public function __construct($params = [])
    {
        parent::__construct();

        $data = $params['list'] ?? [];

        if(!empty($data) && is_array($data)){
            $total = 0;
            foreach($data as $key => $value){
                if($key < $this->showNumber){
                    $this->data[] = $value['total'];
                    $this->categories[] = $value['dtime'];
                }
                $total += $value['total'];
            }
            $this->total['number_total'] = $total;
        }

         $categories = $this->categories;
         $chartData = [
             [
                 'name' => '销量',
                 'data' => $this->data,
             ]
         ];

        $color = Admin::color();
        // 设置标题
        $this->title('销售总数量（单）');
        $this->subTitle('其中'.$this->showNumber.'天每天的销量');
        // 设置图表颜色
        $this->chartColors([$color->primary()]);

        $this->chartOption(
            'tooltip.x',
            ['show' => true]
        );
        
        $this->chartOption(
            'tooltip.y.formatter',
            JavaScript::make("function (params,index) {
                return params ;
            }")
        );

        $this->chartOption(
            'xaxis.type',
            'category'
        );
        $this->chartOption(
            'xaxis.categories',
            $this->categories
        );

        $this->withContent($this->total);
        $this->withChart($chartData);
        $this->withCategories($categories);
    }

    protected function init()
    {
        parent::init();
    }
    
    /**
     * 处理请求
     * 如果你的图表类中包含此方法，则可以通过此方法处理前端通过ajax提交的获取图表数据的请求
     *
     * @param Request $request
     * @return mixed|void
     */
    public function handleBar(Request $request)
    {
        // $this->GoodsActivityReport = new GoodsActivityReport($data);
        // 数据查询逻辑
        // 分页的时候不重复查询数据
        $currentPage = request()->input('page', 1);
        if($currentPage == 1){
            $params = $this->parameters();
            $data = $this->GoodsActivityReport->getCountData($params);
            if(!empty($data) && is_array($data)){
                $total = 0;
                foreach($data as $key => $value){
                    if($key < $this->showNumber){
                        $this->data[] = $value['total'];
                        $this->categories[] = $value['dtime'];
                    }
                    $total += $value['total'];
                }
                $this->total['number_total'] = $total;
            }
        }
        $categories = $this->categories;
        $chartData = [
            [
                'name' => '销量',
                'data' => $this->data,
            ]
        ];
        $this->withContent($this->total);
        $this->withChart($chartData);
        $this->withCategories($categories);
    }

    /**
     * 这里返回需要异步传递到 handler 方法的参数 
     * 
     * @return array
     */
    public function parameters(): array
    {
        $this->marketId = Auth::getMarket();
        return [
            'page' => request()->input('page', 1),
            'name'   => request()->input('name', ''),
            'market_id' => $this->marketId ? $this->marketId : request()->input('market_id',0),
            'store_id' => request()->input('store_id',0),
            'start_time' => request()->input('start_time',''),
            'end_time' => request()->input('end_time',''),
        ];
    }
    /**
     * 设置图表数据.
     *
     * @param array $data
     *
     * @return $this
     */
    public function withChart(array $data)
    {
        return $this->chart([
            'series' => $data,
        ]);
    }

    /**
     * 渲染卡片内容.
     *
     * @return string
     */
    public function withContent($total = [])
    {
        $value =  $total['number_total'] ?? 0;
        $minHeight = '113px';
        return $this->content(
            <<<HTML
<div class="d-flex p-1 flex-column justify-content-between" style="padding-top: 0;width: 100%;height: 100%;min-height: {$minHeight}">
    <div class="text-left">
        <h2 class="ml-1 font-lg-1">{$value}</h2>
    </div>
</div>
HTML
        );
    }

}