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MDL-21781 cohorts db structure

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This commit is contained in:
Petr Skoda 2010-04-23 09:04:19 +00:00
parent b767607103
commit f733845d75
1 changed files with 37 additions and 4 deletions
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41
lib/db/install.xml
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@ -1,5 +1,5 @@
<?xml version="1.0" encoding="UTF-8" ?>
<XMLDB PATH="lib/db" VERSION="20100413" COMMENT="XMLDB file for core Moodle tables"
<XMLDB PATH="lib/db" VERSION="20100418" COMMENT="XMLDB file for core Moodle tables"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="../../lib/xmldb/xmldb.xsd"
>
@ -1880,7 +1880,7 @@
<KEY NAME="userid" TYPE="foreign" FIELDS="userid" REFTABLE="user" REFFIELDS="id" PREVIOUS="groupid"/>
</KEYS>
</TABLE>
<TABLE NAME="groupings_groups" COMMENT="Link a grouping to a group (note, groups can be in multiple groupings ONLY in a course). WAS: groups_groupings_groups" PREVIOUS="groups_members" NEXT="user_private_key">
<TABLE NAME="groupings_groups" COMMENT="Link a grouping to a group (note, groups can be in multiple groupings ONLY in a course). WAS: groups_groupings_groups" PREVIOUS="groups_members" NEXT="cohort">
<FIELDS>
<FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" NEXT="groupingid"/>
<FIELD NAME="groupingid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="id" NEXT="groupid"/>
@ -1893,7 +1893,40 @@
<KEY NAME="groupid" TYPE="foreign" FIELDS="groupid" REFTABLE="groups" REFFIELDS="id" PREVIOUS="groupingid"/>
</KEYS>
</TABLE>
<TABLE NAME="user_private_key" COMMENT="access keys used in cookieless scripts - rss, etc." PREVIOUS="groupings_groups" NEXT="grade_letters">
<TABLE NAME="cohort" COMMENT="Each record represents one cohort (aka site-wide group)." PREVIOUS="groupings_groups" NEXT="cohort_members">
<FIELDS>
<FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" NEXT="contextid"/>
<FIELD NAME="contextid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="false" COMMENT="Context is usually ignored in sync operations so that the cohorts may be moved freely around in the context tree without any side affects." PREVIOUS="id" NEXT="name"/>
<FIELD NAME="name" TYPE="char" LENGTH="254" NOTNULL="true" SEQUENCE="false" COMMENT="Short human readable unique name for the group." PREVIOUS="contextid" NEXT="idnumber"/>
<FIELD NAME="idnumber" TYPE="char" LENGTH="100" NOTNULL="false" SEQUENCE="false" COMMENT="usually used in other system for mapping of cohort to some external entity" PREVIOUS="name" NEXT="description"/>
<FIELD NAME="description" TYPE="text" LENGTH="small" NOTNULL="false" SEQUENCE="false" COMMENT="standard description text box" PREVIOUS="idnumber" NEXT="descriptionformat"/>
<FIELD NAME="descriptionformat" TYPE="int" LENGTH="2" NOTNULL="true" UNSIGNED="true" SEQUENCE="false" PREVIOUS="description" NEXT="component"/>
<FIELD NAME="component" TYPE="char" LENGTH="100" NOTNULL="false" SEQUENCE="false" COMMENT="component (plugintype_pluignname) that manages the cohort, manual modifications are allowed only when set to NULL" PREVIOUS="descriptionformat" NEXT="timecreated"/>
<FIELD NAME="timecreated" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="false" PREVIOUS="component" NEXT="timemodified"/>
<FIELD NAME="timemodified" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="false" PREVIOUS="timecreated"/>
</FIELDS>
<KEYS>
<KEY NAME="primary" TYPE="primary" FIELDS="id" NEXT="context"/>
<KEY NAME="context" TYPE="foreign" FIELDS="contextid" REFTABLE="context" REFFIELDS="id" PREVIOUS="primary"/>
</KEYS>
</TABLE>
<TABLE NAME="cohort_members" COMMENT="Link a user to a cohort." PREVIOUS="cohort" NEXT="user_private_key">
<FIELDS>
<FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" NEXT="cohortid"/>
<FIELD NAME="cohortid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="id" NEXT="userid"/>
<FIELD NAME="userid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="cohortid" NEXT="timeadded"/>
<FIELD NAME="timeadded" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="userid"/>
</FIELDS>
<KEYS>
<KEY NAME="primary" TYPE="primary" FIELDS="id" NEXT="cohortid"/>
<KEY NAME="cohortid" TYPE="foreign" FIELDS="cohortid" REFTABLE="cohort" REFFIELDS="id" PREVIOUS="primary" NEXT="userid"/>
<KEY NAME="userid" TYPE="foreign" FIELDS="userid" REFTABLE="user" REFFIELDS="id" PREVIOUS="cohortid"/>
</KEYS>
<INDEXES>
<INDEX NAME="cohortid-userid" UNIQUE="true" FIELDS="cohortid, userid" COMMENT="enforce unique index"/>
</INDEXES>
</TABLE>
<TABLE NAME="user_private_key" COMMENT="access keys used in cookieless scripts - rss, etc." PREVIOUS="cohort_members" NEXT="grade_letters">
<FIELDS>
<FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" NEXT="script"/>
<FIELD NAME="script" TYPE="char" LENGTH="128" NOTNULL="true" SEQUENCE="false" COMMENT="plugin, module - unique identifier" PREVIOUS="id" NEXT="value"/>
@ -2468,4 +2501,4 @@
</INDEXES>
</TABLE>
</TABLES>
</XMLDB>
</XMLDB>