From d74159b68f115e6deaf6487752e54fa3ff7e873f Mon Sep 17 00:00:00 2001
From: jakubvrana <jakubvrana@7c3ca157-0c34-0410-bff1-cbf682f78f5c>
Date: Sat, 29 Aug 2009 13:51:32 +0000
Subject: [PATCH] Print ALTER command instead of running it in export

git-svn-id: https://adminer.svn.sourceforge.net/svnroot/adminer/trunk@1042 7c3ca157-0c34-0410-bff1-cbf682f78f5c
---
 adminer/dump.inc.php           | 16 ++++++++--------
 adminer/include/export.inc.php |  9 +++------
 changes.txt                    |  1 +
 todo.txt                       |  1 -
 4 files changed, 12 insertions(+), 15 deletions(-)

diff --git a/adminer/dump.inc.php b/adminer/dump.inc.php
index c6baa49b..5a55f985 100644
--- a/adminer/dump.inc.php
+++ b/adminer/dump.inc.php
@@ -46,7 +46,7 @@ SET sql_mode = 'NO_AUTO_VALUE_ON_ZERO';
 				dump(($style == "CREATE+ALTER" ? preg_replace('~^CREATE DATABASE ~', '\\0IF NOT EXISTS ', $create) : $create) . ";\n");
 			}
 			if ($style && $_POST["format"] == "sql") {
-				dump("USE " . idf_escape($db) . ";\n\n");
+				dump(($style == "CREATE+ALTER" ? "SET @adminer_alter = '';\n" : "") . "USE " . idf_escape($db) . ";\n\n");
 				$out = "";
 				if ($dbh->server_info >= 5) {
 					foreach (array("FUNCTION", "PROCEDURE") as $routine) {
@@ -108,7 +108,7 @@ SET sql_mode = 'NO_AUTO_VALUE_ON_ZERO';
 				// drop old tables
 				$query = "SELECT TABLE_NAME, ENGINE, TABLE_COLLATION, TABLE_COMMENT FROM information_schema.TABLES WHERE TABLE_SCHEMA = DATABASE()";
 				dump("DELIMITER ;;
-CREATE PROCEDURE adminer_drop () BEGIN
+CREATE PROCEDURE adminer_alter (INOUT alter_command text) BEGIN
 	DECLARE _table_name, _engine, _table_collation varchar(64);
 	DECLARE _table_comment varchar(64);
 	DECLARE done bool DEFAULT 0;
@@ -130,20 +130,20 @@ while ($row = $result->fetch_assoc()) {
 }
 dump("
 				ELSE
-					SET @alter_table = CONCAT('DROP TABLE `', REPLACE(_table_name, '`', '``'), '`');
-					PREPARE alter_command FROM @alter_table;
-					EXECUTE alter_command; -- returns can't return a result set in the given context with MySQL extension
-					DROP PREPARE alter_command;
+					SET alter_command = CONCAT(alter_command, 'DROP TABLE `', REPLACE(_table_name, '`', '``'), '`;\\n');
 			END CASE;
 		END IF;
 	UNTIL done END REPEAT;
 	CLOSE tables;
 END;;
 DELIMITER ;
-CALL adminer_drop;
-DROP PROCEDURE adminer_drop;
+CALL adminer_alter(@adminer_alter);
+DROP PROCEDURE adminer_alter;
 ");
 			}
+			if (in_array("CREATE+ALTER", array($style, $_POST["table_style"])) && $_POST["format"] == "sql") {
+				dump("SELECT @adminer_alter;\n");
+			}
 		}
 	}
 	dump();
diff --git a/adminer/include/export.inc.php b/adminer/include/export.inc.php
index d3462ff7..a1515c97 100644
--- a/adminer/include/export.inc.php
+++ b/adminer/include/export.inc.php
@@ -19,7 +19,7 @@ function dump_table($table, $style, $is_view = false) {
 			// create procedure which iterates over original columns and adds new and removes old
 			$query = "SELECT COLUMN_NAME, COLUMN_DEFAULT, IS_NULLABLE, COLLATION_NAME, COLUMN_TYPE, EXTRA, COLUMN_COMMENT FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = " . $dbh->quote($table) . " ORDER BY ORDINAL_POSITION";
 			dump("DELIMITER ;;
-CREATE PROCEDURE adminer_alter () BEGIN
+CREATE PROCEDURE adminer_alter (INOUT alter_command text) BEGIN
 	DECLARE _column_name, _collation_name, _column_type, after varchar(64) DEFAULT '';
 	DECLARE _column_default longtext;
 	DECLARE _is_nullable char(3);
@@ -76,14 +76,11 @@ CREATE PROCEDURE adminer_alter () BEGIN
 	UNTIL done END REPEAT;
 	CLOSE columns;
 	IF @alter_table != '' OR add_columns != '' THEN
-		SET @alter_table = CONCAT('ALTER TABLE " . idf_escape($table) . "', SUBSTR(CONCAT(add_columns, @alter_table), 2));
-		PREPARE alter_command FROM @alter_table;
-		EXECUTE alter_command;
-		DROP PREPARE alter_command;
+		SET alter_command = CONCAT(alter_command, 'ALTER TABLE " . idf_escape($table) . "', SUBSTR(CONCAT(add_columns, @alter_table), 2), ';\\n');
 	END IF;
 END;;
 DELIMITER ;
-CALL adminer_alter;
+CALL adminer_alter(@adminer_alter);
 DROP PROCEDURE adminer_alter;
 
 ");
diff --git a/changes.txt b/changes.txt
index dc9e70bc..f11c7257 100644
--- a/changes.txt
+++ b/changes.txt
@@ -4,6 +4,7 @@ Execute SQL file stored on server disk
 Compress export and import
 Display column comments in table overview
 Respect max_allowed_packet in CSV import
+Print ALTER command instead of running it in export
 Click on row selects it
 Fix Editor date format
 Fix long SQL query crash (bug #2839231)
diff --git a/todo.txt b/todo.txt
index cb58b620..bb34fea7 100644
--- a/todo.txt
+++ b/todo.txt
@@ -1,5 +1,4 @@
 Bulk database drop
-Print CREATE+ALTER export instead of running it
 Add whisperer to fields with foreign key
 Highlight found fields
 MySQL 5 BIT data type