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vendor/topthink/think-oracle/src/Builder.php

@@ -0,0 +1,86 @@
+<?php
+// +----------------------------------------------------------------------
+// | ThinkPHP [ WE CAN DO IT JUST THINK ]
+// +----------------------------------------------------------------------
+// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
+// +----------------------------------------------------------------------
+// | Author: liu21st <liu21st@gmail.com>
+// +----------------------------------------------------------------------
+
+namespace think\oracle;
+
+use think\db\Builder as BaseBuilder;
+
+/**
+ * Oracle数据库驱动
+ */
+class Builder extends BaseBuilder
+{
+
+    protected $selectSql = 'SELECT * FROM (SELECT thinkphp.*, rownum AS numrow FROM (SELECT  %DISTINCT% %FIELD% FROM %TABLE%%JOIN%%WHERE%%GROUP%%HAVING%%ORDER%) thinkphp ) %LIMIT%%COMMENT%';
+
+    /**
+     * limit
+     * @access public
+     * @return string
+     */
+    public function parseLimit($limit)
+    {
+        $limitStr = '';
+        if (!empty($limit)) {
+            $limit = explode(',', $limit);
+            if (count($limit) > 1) {
+                $limitStr = "(numrow>" . $limit[0] . ") AND (numrow<=" . ($limit[0] + $limit[1]) . ")";
+            } else {
+                $limitStr = "(numrow>0 AND numrow<=" . $limit[0] . ")";
+            }
+
+        }
+        return $limitStr ? ' WHERE ' . $limitStr : '';
+    }
+
+    /**
+     * 设置锁机制
+     * @access protected
+     * @param bool|false $lock
+     * @return string
+     */
+    protected function parseLock($lock = false)
+    {
+        if (!$lock) {
+            return '';
+        }
+
+        return ' FOR UPDATE NOWAIT ';
+    }
+
+    /**
+     * 字段和表名处理
+     * @access protected
+     * @param string    $key
+     * @param array     $options
+     * @param bool      $strict
+     * @return string
+     */
+    protected function parseKey($key, $options = [], $strict = false)
+    {
+        $key = trim($key);
+        if (strpos($key, '$.') && false === strpos($key, '(')) {
+            // JSON字段支持
+            list($field, $name) = explode($key, '$.');
+            $key                = $field . '."' . $name . '"';
+        }
+        return $key;
+    }
+
+    /**
+     * 随机排序
+     * @access protected
+     * @return string
+     */
+    protected function parseRand()
+    {
+        return 'DBMS_RANDOM.value';
+    }
+
+}