距离排序

app/Http/Controllers/Api/AgentProductController.php

@@ -7,6 +7,8 @@ use App\Models\Advertising;
 use App\Models\AgentProduct;
 use App\Models\Category;
 use App\Models\UserFav;
+use App\Models\Views\AgentProduct as AgentProductView;
+use Illuminate\Support\Facades\DB;
 use Illuminate\Support\Facades\Storage;
 
 /**
@@ -19,17 +21,35 @@ class AgentProductController extends Controller
 	// 代理商产品列表
 	public function index()
 	{
-		$formData = request()->only(['category_id', 'type', 'by']);
+		$formData = request()->only(['category_id', 'type', 'by', 'lat', 'lng']);
 		$category_id  = $formData['category_id'] ?? 0;
 		$type = $formData['type'] ?? 0;
 		$by = $formData['by'] ?? 0;
+		$lat = $formData['lat'] ?? 0;
+		$lng = $formData['lng'] ?? 0;
 
-		$list = AgentProduct::list($this->agent_id);
+		$list = AgentProductView::list($this->agent_id);
 		if ($category_id) {
 			$list = $list->whereIn('category_id', [$category_id, ...$this->get_category_child_ids($category_id)]);
 		}
 
-		$fields = ['id', 'sale', 'updated_at', 'price']; //排序字段 TODO 还有距离排序
+		// 距离排序，TODO 优化
+		if ($type == 4) {
+			$list = $list->addSelect(DB::raw(<<<SQL
+round(
+	(((6371.393 * 2) * asin(
+		sqrt((
+			pow( sin((((( {$lat} * 3.1415926 ) / 180 ) - (( `latitude` * pi()) / 180 )) / 2 )), 2 )
+			+
+			(
+				(cos((({$lat} * 3.1415926) / 180)) * cos(((`latitude` * pi()) / 180)))
+				*
+				pow( sin((((( {$lng} * 3.1415926 ) / 180 ) - (( `logitude` * pi()) / 180 )) / 2 )), 2 ))))
+	)) * 1000),0) AS `distance_m`
+SQL));
+		}
+
+		$fields = ['id', 'sale', 'updated_at', 'price', 'distance_m']; //排序字段 TODO 还有距离排序
 
 		$field = $fields[$type] ?? $fields[0];
 		$by = $by == 0 ? 'desc' : 'asc';

app/Models/Views/AgentProduct.php

@@ -0,0 +1,8 @@
+<?php
+
+namespace App\Models\Views;
+
+class AgentProduct extends \App\Models\AgentProduct
+{
+	protected $table = 'view_agent_products';
+}