代码初始化

2023-08-21 14:46:51 +08:00
parent 6e2947edd4
commit d1cd08a4d6
1647 changed files with 235248 additions and 0 deletions
--- a/source/thinkphp/library/think/db/builder/Mysql.php
+++ b/source/thinkphp/library/think/db/builder/Mysql.php
@@ -0,0 +1,134 @@
+<?php
+// +----------------------------------------------------------------------
+// | ThinkPHP [ WE CAN DO IT JUST THINK ]
+// +----------------------------------------------------------------------
+// | Copyright (c) 2006~2018 http://thinkphp.cn All rights reserved.
+// +----------------------------------------------------------------------
+// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
+// +----------------------------------------------------------------------
+// | Author: liu21st <liu21st@gmail.com>
+// +----------------------------------------------------------------------
+
+namespace think\db\builder;
+
+use think\db\Builder;
+use think\Exception;
+
+/**
+ * mysql数据库驱动
+ */
+class Mysql extends Builder
+{
+
+    protected $insertAllSql = '%INSERT% INTO %TABLE% (%FIELD%) VALUES %DATA% %COMMENT%';
+    protected $updateSql    = 'UPDATE %TABLE% %JOIN% SET %SET% %WHERE% %ORDER%%LIMIT% %LOCK%%COMMENT%';
+
+    /**
+     * 生成insertall SQL
+     * @access public
+     * @param array     $dataSet 数据集
+     * @param array     $options 表达式
+     * @param bool      $replace 是否replace
+     * @return string
+     * @throws Exception
+     */
+    public function insertAll($dataSet, $options = [], $replace = false)
+    {
+        // 获取合法的字段
+        if ('*' == $options['field']) {
+            $fields = array_keys($this->query->getFieldsType($options['table']));
+        } else {
+            $fields = $options['field'];
+        }
+
+        foreach ($dataSet as $data) {
+            foreach ($data as $key => $val) {
+                if (!in_array($key, $fields, true)) {
+                    if ($options['strict']) {
+                        throw new Exception('fields not exists:[' . $key . ']');
+                    }
+                    unset($data[$key]);
+                } elseif (is_null($val)) {
+                    $data[$key] = 'NULL';
+                } elseif (is_scalar($val)) {
+                    $data[$key] = $this->parseValue($val, $key);
+                } elseif (is_object($val) && method_exists($val, '__toString')) {
+                    // 对象数据写入
+                    $data[$key] = $val->__toString();
+                } else {
+                    // 过滤掉非标量数据
+                    unset($data[$key]);
+                }
+            }
+            $value    = array_values($data);
+            $values[] = '( ' . implode(',', $value) . ' )';
+
+            if (!isset($insertFields)) {
+                $insertFields = array_map([$this, 'parseKey'], array_keys($data));
+            }
+        }
+
+        return str_replace(
+            ['%INSERT%', '%TABLE%', '%FIELD%', '%DATA%', '%COMMENT%'],
+            [
+                $replace ? 'REPLACE' : 'INSERT',
+                $this->parseTable($options['table'], $options),
+                implode(' , ', $insertFields),
+                implode(' , ', $values),
+                $this->parseComment($options['comment']),
+            ], $this->insertAllSql);
+    }
+
+    /**
+     * 字段和表名处理
+     * @access protected
+     * @param mixed  $key
+     * @param array  $options
+     * @return string
+     */
+    protected function parseKey($key, $options = [], $strict = false)
+    {
+        if (is_numeric($key)) {
+            return $key;
+        } elseif ($key instanceof Expression) {
+            return $key->getValue();
+        }
+
+        $key = trim($key);
+        if (strpos($key, '$.') && false === strpos($key, '(')) {
+            // JSON字段支持
+            list($field, $name) = explode('$.', $key);
+            return 'json_extract(' . $field . ', \'$.' . $name . '\')';
+        } elseif (strpos($key, '.') && !preg_match('/[,\'\"\(\)`\s]/', $key)) {
+            list($table, $key) = explode('.', $key, 2);
+            if ('__TABLE__' == $table) {
+                $table = $this->query->getTable();
+            }
+            if (isset($options['alias'][$table])) {
+                $table = $options['alias'][$table];
+            }
+        }
+
+        if ('*' != $key && ($strict || !preg_match('/[,\'\"\*\(\)`.\s]/', $key))) {
+            $key = '`' . $key . '`';
+        }
+        if (isset($table)) {
+            if (strpos($table, '.')) {
+                $table = str_replace('.', '`.`', $table);
+            }
+            $key = '`' . $table . '`.' . $key;
+        }
+        return $key;
+    }
+
+    /**
+     * 随机排序
+     * @access protected
+     * @return string
+     */
+    protected function parseRand()
+    {
+        return 'rand()';
+    }
+
+}