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f37da85054
Many thanks to Mike Churchward for his work on this and persevering with sending updated versions to me. :-) Shane and I have polished it up, rewritten a few parts (display-related) and here it is, finally in CVS! I think there will still need to be some optimisation for the SQL, since it's still pretty intensive. Perhaps some sort of caching in the session that gets modified along with the database whenever something gets read. However if there are problems the whole thing can be switched off in the forum module config so this is not crucially urgent.
127 lines
6.0 KiB
PHP
127 lines
6.0 KiB
PHP
<?php // $Id$
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function forum_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 < 2003042402) {
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execute_sql("INSERT INTO {$CFG->prefix}log_display VALUES ('forum', 'move discussion', 'forum_discussions', 'name')");
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}
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if ($oldversion < 2003082500) {
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table_column("forum", "", "assesstimestart", "integer", "10", "unsigned", "0", "", "assessed");
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table_column("forum", "", "assesstimefinish", "integer", "10", "unsigned", "0", "", "assesstimestart");
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}
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if ($oldversion < 2003082502) {
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execute_sql("UPDATE {$CFG->prefix}forum SET scale = (- scale)");
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}
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if ($oldversion < 2003100600) {
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table_column("forum", "", "maxbytes", "integer", "10", "unsigned", "0", "", "scale");
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}
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if ($oldversion < 2004010100) {
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table_column("forum", "", "assesspublic", "integer", "4", "unsigned", "0", "", "assessed");
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}
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if ($oldversion < 2004011404) {
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table_column("forum_discussions", "", "userid", "integer", "10", "unsigned", "0", "", "firstpost");
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if ($discussions = get_records_sql("SELECT d.id, p.userid
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FROM {$CFG->prefix}forum_discussions as d,
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{$CFG->prefix}forum_posts as p
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WHERE d.firstpost = p.id")) {
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foreach ($discussions as $discussion) {
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update_record("forum_discussions", $discussion);
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}
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}
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}
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if ($oldversion < 2004012200) {
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table_column("forum_discussions", "", "groupid", "integer", "10", "unsigned", "0", "", "userid");
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}
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if ($oldversion < 2004020600) {
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table_column("forum_discussions", "", "usermodified", "integer", "10", "unsigned", "0", "", "timemodified");
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}
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if ($oldversion < 2004050300) {
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table_column("forum","","rsstype","integer","2", "unsigned", "0", "", "forcesubscribe");
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table_column("forum","","rssarticles","integer","2", "unsigned", "0", "", "rsstype");
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set_config("forum_enablerssfeeds",0);
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}
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if ($oldversion < 2004060100) {
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modify_database('', "CREATE TABLE prefix_forum_queue (
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id SERIAL PRIMARY KEY,
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userid integer default 0 NOT NULL,
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discussionid integer default 0 NOT NULL,
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postid integer default 0 NOT NULL
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);");
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}
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if ($oldversion < 2004070700) { // This may be redoing it from STABLE but that's OK
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table_column("forum_discussions", "groupid", "groupid", "integer", "10", "", "0", "");
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}
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if ($oldversion < 2004111700) {
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execute_sql(" DROP INDEX {$CFG->prefix}forum_posts_parent_idx;",false);
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execute_sql(" DROP INDEX {$CFG->prefix}forum_posts_discussion_idx;",false);
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execute_sql(" DROP INDEX {$CFG->prefix}forum_posts_userid_idx;",false);
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execute_sql(" DROP INDEX {$CFG->prefix}forum_discussions_forum_idx;",false);
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execute_sql(" DROP INDEX {$CFG->prefix}forum_discussions_userid_idx;",false);
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execute_sql(" CREATE INDEX {$CFG->prefix}forum_posts_parent_idx ON {$CFG->prefix}forum_posts (parent) ");
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execute_sql(" CREATE INDEX {$CFG->prefix}forum_posts_discussion_idx ON {$CFG->prefix}forum_posts (discussion) ");
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execute_sql(" CREATE INDEX {$CFG->prefix}forum_posts_userid_idx ON {$CFG->prefix}forum_posts (userid) ");
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execute_sql(" CREATE INDEX {$CFG->prefix}forum_discussions_forum_idx ON {$CFG->prefix}forum_discussions (forum) ");
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execute_sql(" CREATE INDEX {$CFG->prefix}forum_discussions_userid_idx ON {$CFG->prefix}forum_discussions (userid) ");
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}
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if ($oldversion < 2004111200) {
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execute_sql("DROP INDEX {$CFG->prefix}forum_course_idx;",false);
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execute_sql("DROP INDEX {$CFG->prefix}forum_queue_userid_idx;",false);
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execute_sql("DROP INDEX {$CFG->prefix}forum_queue_discussion_idx;",false);
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execute_sql("DROP INDEX {$CFG->prefix}forum_queue_postid_idx;",false);
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execute_sql("DROP INDEX {$CFG->prefix}forum_ratings_userid_idx;",false);
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execute_sql("DROP INDEX {$CFG->prefix}forum_ratings_post_idx;",false);
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execute_sql("DROP INDEX {$CFG->prefix}forum_subscriptions_userid_idx;",false);
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execute_sql("DROP INDEX {$CFG->prefix}forum_subscriptions_forum_idx;",false);
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modify_database('','CREATE INDEX prefix_forum_course_idx ON prefix_forum (course);');
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modify_database('','CREATE INDEX prefix_forum_queue_userid_idx ON prefix_forum_queue (userid);');
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modify_database('','CREATE INDEX prefix_forum_queue_discussion_idx ON prefix_forum_queue (discussionid);');
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modify_database('','CREATE INDEX prefix_forum_queue_postid_idx ON prefix_forum_queue (postid);');
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modify_database('','CREATE INDEX prefix_forum_ratings_userid_idx ON prefix_forum_ratings (userid);');
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modify_database('','CREATE INDEX prefix_forum_ratings_post_idx ON prefix_forum_ratings (post);');
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modify_database('','CREATE INDEX prefix_forum_subscriptions_userid_idx ON prefix_forum_subscriptions (userid);');
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modify_database('','CREATE INDEX prefix_forum_subscriptions_forum_idx ON prefix_forum_subscriptions (forum);');
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}
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if ($oldversion < 2005011500) {
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modify_database('','CREATE TABLE prefix_forum_read (
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id SERIAL PRIMARY KEY,
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userid integer default 0 NOT NULL,
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forumid integer default 0 NOT NULL,
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discussionid integer default 0 NOT NULL,
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postid integer default 0 NOT NULL,
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firstread integer default 0 NOT NULL,
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lastread integer default 0 NOT NULL
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);');
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modify_database('','CREATE INDEX prefix_forum_user_forum_idx ON prefix_forum_read (userid, forumid);');
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modify_database('','CREATE INDEX prefix_forum_user_discussion_idx ON prefix_forum_read (userid, discussionid);');
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modify_database('','CREATE INDEX prefix_forum_user_post_idx ON prefix_forum_read (userid, postid);');
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}
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return true;
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}
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?>
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