rudimentary export options

app/Tables/JsonExporter.php

@@ -0,0 +1,44 @@
+<?php
+
+
+namespace App\Tables;
+
+
+class JsonExporter extends BaseExporter
+{
+    /**
+     * @return string - mime type for the downloaded file
+     */
+    protected function getMimeType()
+    {
+        return 'application/json';
+    }
+
+    /**
+     * @return string - file extension for the downloaded file
+     */
+    protected function getFileExtension()
+    {
+        return 'json';
+    }
+
+    /**
+     * Write the document to stdout ('php://output')
+     */
+    protected function writeDocument()
+    {
+        echo "[\n";
+
+        $first = true;
+        foreach ($this->iterateRows() as $row) {
+            if ($first) {
+                $first = false;
+            } else {
+                echo ",\n";
+            }
+            echo json_encode($row, JSON_UNESCAPED_UNICODE|JSON_UNESCAPED_SLASHES);
+        }
+
+        echo "\n]\n";
+    }
+}