add:新增模型导出

extend/catcher/CatchModelCollection.php

@@ -1,12 +1,70 @@
 <?php
 namespace catcher;
 
+use catcher\library\excel\CatchExcel;
+use catcher\library\excel\Excel;
+use catcher\library\excel\ExcelContract;
 use think\model\Collection;
 
 class CatchModelCollection extends Collection
 {
+    /**
+     * tree 结构
+     *
+     * @time 2020年10月21日
+     * @param int $pid
+     * @param string $pidField
+     * @param string $children
+     * @return array
+     */
     public function toTree($pid = 0, $pidField = 'parent_id', $children = 'children')
     {
         return Tree::done($this->items, $pid, $pidField, $children);
     }
+
+
+    /**
+     * 导出数据
+     *
+     * @time 2020年10月21日
+     * @param $header
+     * @param string $path
+     * @param string $disk
+     * @throws \PhpOffice\PhpSpreadsheet\Exception
+     * @return mixed|string[]
+     */
+    public function export($header, $path = '', $disk = 'local')
+    {
+        $excel = new Class($header, $this->items) implements ExcelContract
+        {
+            protected $headers;
+
+            protected $sheets;
+
+            public function __construct($headers, $sheets)
+            {
+                $this->headers = $headers;
+
+                $this->sheets = $sheets;
+            }
+
+            public function headers(): array
+            {
+                // TODO: Implement headers() method.
+                return $this->headers;
+            }
+
+            public function sheets()
+            {
+                // TODO: Implement sheets() method.
+                return $this->sheets;
+            }
+        };
+
+        if (!$path) {
+            $path = Utils::publicPath('exports');
+        }
+
+        return (new Excel)->save($excel, $path, $disk);
+    }
 }