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@@ -60,8 +60,10 @@ class Exams extends Backend
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->paginate($limit);
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//最高分 最低分 平均分
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$select = $this->model->where($where)->where($this->whereExtend)->field('count(*) as count,sum(total_score) as totalscore,min(total_score) as min,max(total_score) as max')->select();
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- $pingfen = bcdiv($select[0]['totalscore'],$select[0]['count']);
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-
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+ $pingfen = 0;
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+ if(!empty($select[0]['totalscore']) && !empty($select[0]['count'])){
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+ $pingfen = bcdiv($select[0]['totalscore'],$select[0]['count']);
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+ }
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$defen = ['max'=>$select[0]['max'],'min'=>$select[0]['min'],'pingfen'=>$pingfen];
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$result = ['total' => $list->total(), 'rows' => $list->items(),'defen'=>$defen];
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