完善前台seo功能

app/controller/Base.php

@@ -17,6 +17,7 @@ use app\model\Config;
 use think\facade\Route;
 use think\facade\Event;
 use app\model\Hooks;
+use app\model\SeoRule;
 
 class Base {
 
@@ -216,4 +217,27 @@ class Base {
 		$doc = new \doc\Doc();
 		return $doc->parse($text);
 	}
+
+	protected function setSeo($title = '', $keywords = '', $description = '') {
+		$seo = array(
+			'title'       => $title,
+			'keywords'    => $keywords,
+			'description' => $description,
+		);
+		//获取还没有经过变量替换的META信息
+		$meta = SeoRule::getMetaOfCurrentPage($this->request, $seo);
+		foreach ($seo as $key => $item) {
+			if (is_array($item)) {
+				$item = implode(',', $item);
+			}
+			$meta[$key] = str_replace("[" . $key . "]", $item . '|', $meta[$key]);
+		}
+
+		$data = array(
+			'title'       => $meta['title'],
+			'keywords'    => $meta['keywords'],
+			'description' => $meta['description'],
+		);
+		View::assign('seo', $data);
+	}
 }