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msd2/phpBB3/phpbb/db/migration/data/v310/profilefield_cleanup.php

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+<?php
+/**
+*
+* This file is part of the phpBB Forum Software package.
+*
+* @copyright (c) phpBB Limited <https://www.phpbb.com>
+* @license GNU General Public License, version 2 (GPL-2.0)
+*
+* For full copyright and license information, please see
+* the docs/CREDITS.txt file.
+*
+*/
+
+namespace phpbb\db\migration\data\v310;
+
+class profilefield_cleanup extends \phpbb\db\migration\migration
+{
+	public function effectively_installed()
+	{
+		return !$this->db_tools->sql_column_exists($this->table_prefix . 'users', 'user_occ') &&
+			!$this->db_tools->sql_column_exists($this->table_prefix . 'users', 'user_interests');
+	}
+
+	static public function depends_on()
+	{
+		return array(
+			'\phpbb\db\migration\data\v310\profilefield_interests',
+			'\phpbb\db\migration\data\v310\profilefield_occupation',
+		);
+	}
+
+	public function update_schema()
+	{
+		return array(
+			'drop_columns'	=> array(
+				$this->table_prefix . 'users'			=> array(
+					'user_occ',
+					'user_interests',
+				),
+			),
+		);
+	}
+
+	public function revert_schema()
+	{
+		return array(
+			'add_columns'	=> array(
+				$this->table_prefix . 'users'			=> array(
+					'user_occ'			=> array('MTEXT', ''),
+					'user_interests'	=> array('MTEXT', ''),
+				),
+			),
+		);
+	}
+}