Alter table

git-svn-id: https://adminer.svn.sourceforge.net/svnroot/adminer/trunk@451 7c3ca157-0c34-0410-bff1-cbf682f78f5c

diff --git a/export.inc.php b/export.inc.php
index 951a67140695ada1ba6bf1ff62d9ccfecd5aa945..bc152a90a4876e229521612346e517b0dbd5701c 100644 (file)
--- a/export.inc.php
+++ b/export.inc.php
@@ -37,6 +37,83 @@ function dump_table($table, $style, $is_view = false) {
                        }
                }
                if ($mysql->server_info >= 5) {
+                       if ($style == "CREATE, ALTER" && !$is_view) {
+                               $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 = '" . $mysql->escape_string($table) . "' ORDER BY ORDINAL_POSITION";
+?>
+DELIMITER ;;
+CREATE PROCEDURE phpminadmin_alter () BEGIN
+       DECLARE _column_name, _collation_name, _column_type, after varchar(64) DEFAULT '';
+       DECLARE _column_default longtext;
+       DECLARE _is_nullable char(3);
+       DECLARE _extra varchar(20);
+       DECLARE _column_comment varchar(255);
+       DECLARE done, set_after bool DEFAULT 0;
+       DECLARE add_columns text DEFAULT '<?php
+$fields = array();
+$result = $mysql->query($query);
+$after = "";
+while ($row = $result->fetch_assoc()) {
+       $row["default"] = (isset($row["COLUMN_DEFAULT"]) ? "'" . $mysql->escape_string($row["COLUMN_DEFAULT"]) . "'" : "NULL");
+       $row["after"] = $mysql->escape_string($after); //! rgt AFTER lft, lft AFTER id doesn't work
+       $row["alter"] = $mysql->escape_string(idf_escape($row["COLUMN_NAME"])
+               . " $row[COLUMN_TYPE]"
+               . ($row["COLLATION_NAME"] ? " COLLATE $row[COLLATION_NAME]" : "")
+               . (isset($row["COLUMN_DEFAULT"]) ? " DEFAULT $row[default]" : "")
+               . ($row["IS_NULLABLE"] == "YES" ? "" : " NOT NULL")
+               . ($row["EXTRA"] ? " $row[EXTRA]" : "")
+               . ($row["COLUMN_COMMENT"] ? " COMMENT '" . $mysql->escape_string($row["COLUMN_COMMENT"]) . "'" : "")
+               . ($after ? " AFTER " . idf_escape($after) : " FIRST")
+       );
+       echo ", ADD $row[alter]";
+       $fields[] = $row;
+       $after = $row["COLUMN_NAME"];
+}
+$result->free();
+?>';
+       DECLARE columns CURSOR FOR <?php echo $query; ?>;
+       DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = 1;
+       SET @alter_table = '';
+       OPEN columns;
+       REPEAT
+               FETCH columns INTO _column_name, _column_default, _is_nullable, _collation_name, _column_type, _extra, _column_comment;
+               IF NOT done THEN
+                       SET set_after = 1;
+                       CASE _column_name<?php
+foreach ($fields as $row) {
+       echo "
+                               WHEN '" . $mysql->escape_string($row["COLUMN_NAME"]) . "' THEN
+                                       SET add_columns = REPLACE(add_columns, ', ADD $row[alter]', '');
+                                       IF NOT (_column_default <=> $row[default]) OR _is_nullable != '$row[IS_NULLABLE]' OR _collation_name != '$row[COLLATION_NAME]' OR _column_type != '$row[COLUMN_TYPE]' OR _extra != '$row[EXTRA]' OR _column_comment != '" . $mysql->escape_string($row["COLUMN_COMMENT"]) . "' OR after != '$row[after]' THEN
+                                               SET @alter_table = CONCAT(@alter_table, ', MODIFY $row[alter]');
+                                       END IF;"; //! don't replace in comment
+}
+?>
+
+                               ELSE
+                                       SET @alter_table = CONCAT(@alter_table, ', DROP ', _column_name);
+                                       SET set_after = 0;
+                       END CASE;
+                       IF set_after THEN
+                               SET after = _column_name;
+                       END IF;
+               END IF;
+       UNTIL done END REPEAT;
+       CLOSE columns;
+       IF @alter_table != '' OR add_columns != '' THEN
+               SET @alter_table = CONCAT('ALTER TABLE <?php echo idf_escape($table); ?>', SUBSTR(CONCAT(add_columns, @alter_table), 2));
+               PREPARE alter_command FROM @alter_table;
+               EXECUTE alter_command;
+               DROP PREPARE alter_command;
+       END IF;
+END;;
+DELIMITER ;
+CALL phpminadmin_alter;
+DROP PROCEDURE phpminadmin_alter;
+
+<?php
+                               //! indexes
+                       }
+                       
                        $result = $mysql->query("SHOW TRIGGERS LIKE '" . $mysql->escape_string(addcslashes($table, "%_")) . "'");
                        if ($result->num_rows) {
                                echo "DELIMITER ;;\n\n";