新增query类

extend/catcher/CatchQuery.php

@@ -0,0 +1,52 @@
+<?php
+namespace catcher;
+
+use think\db\Query;
+
+class CatchQuery extends Query
+{
+  /**
+   *
+   * @time 2020年01月13日
+   * @param string $model
+   * @param string $joinField
+   * @param string $currentJoinField
+   * @param string $type
+   * @param array $bind
+   * @return CatchQuery
+   */
+    public function catchJoin(string $model, string $joinField, string $currentJoinField, string $type = 'INNER', array $bind = [])
+    {
+      $table = app($model)->getTable();
+
+      return $this->join($table, sprintf('%s.%s=%s.%s', $table, $joinField, $this->getTable(), $currentJoinField), $type, $bind);
+    }
+
+  /**
+   *
+   * @time 2020年01月13日
+   * @param string $model
+   * @param string $joinField
+   * @param string $currentJoinField
+   * @param array $bind
+   * @return CatchQuery
+   */
+    public function catchLeftJoin(string $model, string $joinField, string $currentJoinField, array $bind = [])
+    {
+      return $this->catchJoin($model, $joinField,  $currentJoinField, 'LEFT', $bind);
+    }
+
+  /**
+   * 
+   * @time 2020年01月13日
+   * @param string $model
+   * @param string $joinField
+   * @param string $currentJoinField
+   * @param array $bind
+   * @return CatchQuery
+   */
+    public function catchRightJoin(string $model, string $joinField, string $currentJoinField, array $bind = [])
+    {
+      return $this->catchJoin($model, $joinField,  $currentJoinField, 'RIGHT', $bind);
+    }
+}