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MDL-14992 new database based session table - not used yet

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skodak 2008-12-31 12:24:19 +00:00
parent 3f15700abc
commit 81f2bb8122
3 changed files with 63 additions and 14 deletions
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30
lib/db/install.xml
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@ -1,5 +1,5 @@
<?xml version="1.0" encoding="UTF-8" ?>
<XMLDB PATH="lib/db" VERSION="20081208" COMMENT="XMLDB file for core Moodle tables"
<XMLDB PATH="lib/db" VERSION="20081231" COMMENT="XMLDB file for core Moodle tables"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="../../lib/xmldb/xmldb.xsd"
>
@ -401,7 +401,7 @@
<INDEX NAME="userid-contactid" UNIQUE="true" FIELDS="userid, contactid"/>
</INDEXES>
</TABLE>
<TABLE NAME="modules" COMMENT="modules available in the site" PREVIOUS="message_contacts" NEXT="sessions2">
<TABLE NAME="modules" COMMENT="modules available in the site" PREVIOUS="message_contacts" NEXT="sessions">
<FIELDS>
<FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" ENUM="false" NEXT="name"/>
<FIELD NAME="name" TYPE="char" LENGTH="20" NOTNULL="true" SEQUENCE="false" ENUM="false" PREVIOUS="id" NEXT="version"/>
@ -418,24 +418,28 @@
<INDEX NAME="name" UNIQUE="false" FIELDS="name"/>
</INDEXES>
</TABLE>
<TABLE NAME="sessions2" COMMENT="Optional database session storage in new format, not used by default" PREVIOUS="modules" NEXT="timezone">
<TABLE NAME="sessions" COMMENT="Database based session storage - now recommended" PREVIOUS="modules" NEXT="timezone">
<FIELDS>
<FIELD NAME="sesskey" TYPE="char" LENGTH="64" NOTNULL="true" SEQUENCE="false" ENUM="false" NEXT="expiry"/>
<FIELD NAME="expiry" TYPE="datetime" NOTNULL="true" SEQUENCE="false" ENUM="false" PREVIOUS="sesskey" NEXT="expireref"/>
<FIELD NAME="expireref" TYPE="char" LENGTH="250" NOTNULL="false" DEFAULT="" SEQUENCE="false" ENUM="false" PREVIOUS="expiry" NEXT="created"/>
<FIELD NAME="created" TYPE="datetime" NOTNULL="true" SEQUENCE="false" ENUM="false" PREVIOUS="expireref" NEXT="modified"/>
<FIELD NAME="modified" TYPE="datetime" NOTNULL="true" SEQUENCE="false" ENUM="false" PREVIOUS="created" NEXT="sessdata"/>
<FIELD NAME="sessdata" TYPE="text" LENGTH="big" NOTNULL="false" SEQUENCE="false" ENUM="false" PREVIOUS="modified"/>
<FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" ENUM="false" NEXT="sid"/>
<FIELD NAME="sid" TYPE="char" LENGTH="128" NOTNULL="true" SEQUENCE="false" ENUM="false" COMMENT="Session id" PREVIOUS="id" NEXT="sessdata"/>
<FIELD NAME="sessdata" TYPE="text" LENGTH="big" NOTNULL="false" SEQUENCE="false" ENUM="false" COMMENT="session content" PREVIOUS="sid" NEXT="timecreated"/>
<FIELD NAME="timecreated" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="false" ENUM="false" PREVIOUS="sessdata" NEXT="timemodified"/>
<FIELD NAME="timemodified" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="false" ENUM="false" PREVIOUS="timecreated" NEXT="userid"/>
<FIELD NAME="userid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="false" ENUM="false" PREVIOUS="timemodified" NEXT="lastip"/>
<FIELD NAME="lastip" TYPE="char" LENGTH="40" NOTNULL="false" SEQUENCE="false" ENUM="false" PREVIOUS="userid" NEXT="sesskey"/>
<FIELD NAME="sesskey" TYPE="char" LENGTH="10" NOTNULL="true" SEQUENCE="false" ENUM="false" PREVIOUS="lastip"/>
</FIELDS>
<KEYS>
<KEY NAME="primary" TYPE="primary" FIELDS="sesskey"/>
<KEY NAME="primary" TYPE="primary" FIELDS="id" NEXT="userid"/>
<KEY NAME="userid" TYPE="foreign" FIELDS="userid" REFTABLE="user" REFFIELDS="id" PREVIOUS="primary"/>
</KEYS>
<INDEXES>
<INDEX NAME="expiry" UNIQUE="false" FIELDS="expiry" NEXT="expireref"/>
<INDEX NAME="expireref" UNIQUE="false" FIELDS="expireref" PREVIOUS="expiry"/>
<INDEX NAME="sid" UNIQUE="true" FIELDS="sid" NEXT="timecreated"/>
<INDEX NAME="timecreated" UNIQUE="false" FIELDS="timecreated" PREVIOUS="sid" NEXT="timemodified"/>
<INDEX NAME="timemodified" UNIQUE="false" FIELDS="timemodified" PREVIOUS="timecreated"/>
</INDEXES>
</TABLE>
<TABLE NAME="timezone" COMMENT="Rules for calculating local wall clock time for users" PREVIOUS="sessions2" NEXT="user">
<TABLE NAME="timezone" COMMENT="Rules for calculating local wall clock time for users" PREVIOUS="sessions" NEXT="user">
<FIELDS>
<FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" ENUM="false" NEXT="name"/>
<FIELD NAME="name" TYPE="char" LENGTH="100" NOTNULL="true" SEQUENCE="false" ENUM="false" PREVIOUS="id" NEXT="year"/>

45
lib/db/upgrade.php
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@ -1165,6 +1165,51 @@ function xmldb_main_upgrade($oldversion) {
upgrade_main_savepoint($result, 2008121701);
}
if ($result && $oldversion < 2008123100) {
/// Define table sessions to be dropped
$table = new xmldb_table('sessions2');
/// Conditionally launch drop table for sessions
if ($dbman->table_exists($table)) {
$dbman->drop_table($table);
}
/// Main savepoint reached
upgrade_main_savepoint($result, 2008123100);
}
if ($result && $oldversion < 2008123101) {
/// Define table sessions to be created
$table = new xmldb_table('sessions');
/// Adding fields to table sessions
$table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null, null, null);
$table->add_field('sid', XMLDB_TYPE_CHAR, '128', null, XMLDB_NOTNULL, null, null, null, null);
$table->add_field('sessdata', XMLDB_TYPE_TEXT, 'big', null, null, null, null, null, null);
$table->add_field('timecreated', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
$table->add_field('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
$table->add_field('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, null);
$table->add_field('lastip', XMLDB_TYPE_CHAR, '40', null, null, null, null, null, null);
$table->add_field('sesskey', XMLDB_TYPE_CHAR, '10', null, XMLDB_NOTNULL, null, null, null, null);
/// Adding keys to table sessions
$table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
$table->add_key('userid', XMLDB_KEY_FOREIGN, array('userid'), 'user', array('id'));
/// Adding indexes to table sessions
$table->add_index('sid', XMLDB_INDEX_UNIQUE, array('sid'));
$table->add_index('timecreated', XMLDB_INDEX_NOTUNIQUE, array('timecreated'));
$table->add_index('timemodified', XMLDB_INDEX_NOTUNIQUE, array('timemodified'));
/// Launch create table for sessions
$dbman->create_table($table);
/// Main savepoint reached
upgrade_main_savepoint($result, 2008123101);
}
return $result;
}

2
version.php
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@ -6,7 +6,7 @@
// This is compared against the values stored in the database to determine
// whether upgrades should be performed (see lib/db/*.php)
$version = 2008121701; // YYYYMMDD = date of the last version bump
$version = 2008123101; // YYYYMMDD = date of the last version bump
// XX = daily increments
$release = '2.0 dev (Build: 20081231)'; // Human-friendly version name