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51 lines
2.5 KiB
PHP
51 lines
2.5 KiB
PHP
<?php // $Id$
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function chat_upgrade($oldversion) {
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// This function does anything necessary to upgrade
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// older versions to match current functionality
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global $CFG;
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if ($oldversion < 2004022300) {
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table_column("chat_messages", "", "groupid", "integer", "10", "unsigned", "0", "not null", "userid");
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table_column("chat_users", "", "groupid", "integer", "10", "unsigned", "0", "not null", "userid");
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}
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if ($oldversion < 2004042500) {
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include_once("$CFG->dirroot/mod/chat/lib.php");
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chat_refresh_events();
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}
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if ($oldversion < 2004043000) {
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modify_database("", "INSERT INTO prefix_log_display VALUES ('chat', 'talk', 'chat', 'name');");
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}
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if ($oldversion < 2004111200) { //drop them first to avoid collisions with upgrades from 1.4.2+
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execute_sql("DROP INDEX {$CFG->prefix}chat_course_idx;",false);
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execute_sql("DROP INDEX {$CFG->prefix}chat_messages_chatid_idx;",false);
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execute_sql("DROP INDEX {$CFG->prefix}chat_messages_userid_idx;",false);
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execute_sql("DROP INDEX {$CFG->prefix}chat_messages_groupid_idx;",false);
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execute_sql("DROP INDEX {$CFG->prefix}chat_messages_timemodifiedchatid_idx;",false);
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execute_sql("DROP INDEX {$CFG->prefix}chat_users_chatid_idx;",false);
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execute_sql("DROP INDEX {$CFG->prefix}chat_users_userid_idx;",false);
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execute_sql("DROP INDEX {$CFG->prefix}chat_users_groupid_idx;",false);
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execute_sql("DROP INDEX {$CFG->prefix}chat_users_lastping_idx;",false);
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modify_database('','CREATE INDEX prefix_chat_course_idx ON prefix_chat(course);');
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modify_database('','CREATE INDEX prefix_chat_messages_chatid_idx ON prefix_chat_messages (chatid);');
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modify_database('','CREATE INDEX prefix_chat_messages_userid_idx ON prefix_chat_messages (userid);');
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modify_database('','CREATE INDEX prefix_chat_messages_groupid_idx ON prefix_chat_messages (groupid);');
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modify_database('','CREATE INDEX prefix_chat_messages_timemodifiedchatid_idx ON prefix_chat_messages(timestamp,chatid);');
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modify_database('','CREATE INDEX prefix_chat_users_chatid_idx ON prefix_chat_users (chatid);');
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modify_database('','CREATE INDEX prefix_chat_users_userid_idx ON prefix_chat_users (userid);');
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modify_database('','CREATE INDEX prefix_chat_users_groupid_idx ON prefix_chat_users (groupid);');
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modify_database('','CREATE INDEX prefix_chat_users_lastping_idx ON prefix_chat_users (lastping);');
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}
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return true;
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}
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?>
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