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extend/app_alipay/lotusphp_runtime/DB/Adapter/SqlAdapter/DbSqlAdapterSqlite.php

@@ -0,0 +1,120 @@
+<?php
+class LtDbSqlAdapterSqlite implements LtDbSqlAdapter
+{
+	public function setCharset($charset)
+	{
+		// return 'PRAGMA encoding = "' . $charset . '"';
+		return '';
+	}
+	public function setSchema($schema)
+	{
+		return '';
+	}
+
+	public function beginTransaction()
+	{
+		return 'BEGIN TRANSACTION';
+	}
+
+	public function commit()
+	{
+		return 'COMMIT TRANSACTION';
+	}
+
+	public function rollBack()
+	{
+		return 'ROLLBACK TRANSACTION';
+	}
+
+	public function showSchemas($database)
+	{
+		//return "SHOW DATABASES";
+		return '';
+	}
+	public function showTables($schema)
+	{
+		// 临时表及其索引不在 SQLITE_MASTER 表中而在 SQLITE_TEMP_MASTER 中出现
+		return "SELECT name FROM sqlite_master WHERE type='table' UNION ALL SELECT name FROM sqlite_temp_master WHERE type='table' ORDER BY name";
+	}
+	public function showFields($table)
+	{
+		return "PRAGMA table_info('" . $table . "')";
+
+	}
+	public function limit($limit, $offset)
+	{
+		return " LIMIT $limit OFFSET $offset";
+	}
+
+	public function getSchemas($queryResult)
+	{
+		
+	}
+	public function getTables($queryResult)
+	{
+		return $queryResult;
+	}
+	public function getFields($queryResult)
+	{
+		$fields = array();
+		foreach ($queryResult as $key => $value)
+		{
+			// 字段名
+			$fields[$value['name']]['name'] = $value['name'];
+			// 字段类型
+			$fulltype = $value['type'];
+			$size = null;
+			$precision = null;
+			$scale = null;
+
+			if (preg_match('/^([^\(]+)\(\s*(\d+)\s*,\s*(\d+)\s*\)$/',$fulltype, $matches))
+			{
+				$type = $matches[1];
+				$precision = $matches[2];
+				$scale = $matches[3]; // aka precision
+			}
+			elseif (preg_match('/^([^\(]+)\(\s*(\d+)\s*\)$/',$fulltype, $matches))
+			{
+				$type = $matches[1];
+				$size = $matches[2];
+			}
+			else
+			{
+				$type = $fulltype;
+			}
+
+			$fields[$value['name']]['type'] = $type;
+			/**
+			* not null is 99, null is 0
+			*/
+			$fields[$value['name']]['notnull'] = (bool) ($value['notnull'] != 0);
+			$fields[$value['name']]['default'] = $value['dflt_value'];
+			$fields[$value['name']]['primary'] = (bool) ($value['pk'] == 1 && strtoupper($fulltype) == 'INTEGER');
+		}
+		return $fields;
+	}
+	public function detectQueryType($sql)
+	{
+		if (preg_match("/^\s*SELECT|^\s*PRAGMA/i", $sql))
+		{
+			$ret = 'SELECT';
+		}
+		else if (preg_match("/^\s*INSERT/i", $sql))
+		{
+			$ret = 'INSERT';
+		}
+		else if (preg_match("/^\s*UPDATE|^\s*DELETE|^\s*REPLACE/i", $sql))
+		{
+			$ret = 'CHANGE_ROWS';
+		}
+		else if (preg_match("/^\s*USE|^\s*SET/i", $sql))
+		{
+			$ret = 'SET_SESSION_VAR';
+		}
+		else
+		{
+			$ret = 'OTHER';
+		}
+		return $ret;
+	}
+}