moodle/mod/forum/db/install.xml

<?xml version="1.0" encoding="UTF-8" ?>
<XMLDB PATH="mod/forum/db" VERSION="20100322" COMMENT="XMLDB file for Moodle mod/forum"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:noNamespaceSchemaLocation="../../../lib/xmldb/xmldb.xsd"
>
  <TABLES>
    <TABLE NAME="forum" COMMENT="Forums contain and structure discussion" NEXT="forum_discussions">
      <FIELDS>
        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" NEXT="course"/>
        <FIELD NAME="course" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="id" NEXT="type"/>
        <FIELD NAME="type" TYPE="char" LENGTH="20" NOTNULL="true" DEFAULT="general" SEQUENCE="false" PREVIOUS="course" NEXT="name"/>
        <FIELD NAME="name" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false" PREVIOUS="type" NEXT="intro"/>
        <FIELD NAME="intro" TYPE="text" LENGTH="small" NOTNULL="true" SEQUENCE="false" PREVIOUS="name" NEXT="introformat"/>
        <FIELD NAME="introformat" TYPE="int" LENGTH="4" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" COMMENT="text format of intro field" PREVIOUS="intro" NEXT="assessed"/>
        <FIELD NAME="assessed" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="introformat" NEXT="assesstimestart"/>
        <FIELD NAME="assesstimestart" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="assessed" NEXT="assesstimefinish"/>
        <FIELD NAME="assesstimefinish" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="assesstimestart" NEXT="scale"/>
        <FIELD NAME="scale" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="false" DEFAULT="0" SEQUENCE="false" PREVIOUS="assesstimefinish" NEXT="maxbytes"/>
        <FIELD NAME="maxbytes" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="scale" NEXT="maxattachments"/>
        <FIELD NAME="maxattachments" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="1" SEQUENCE="false" COMMENT="Number of attachments allowed per post" PREVIOUS="maxbytes" NEXT="forcesubscribe"/>
        <FIELD NAME="forcesubscribe" TYPE="int" LENGTH="1" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="maxattachments" NEXT="trackingtype"/>
        <FIELD NAME="trackingtype" TYPE="int" LENGTH="2" NOTNULL="true" UNSIGNED="true" DEFAULT="1" SEQUENCE="false" PREVIOUS="forcesubscribe" NEXT="rsstype"/>
        <FIELD NAME="rsstype" TYPE="int" LENGTH="2" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="trackingtype" NEXT="rssarticles"/>
        <FIELD NAME="rssarticles" TYPE="int" LENGTH="2" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="rsstype" NEXT="timemodified"/>
        <FIELD NAME="timemodified" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="rssarticles" NEXT="warnafter"/>
        <FIELD NAME="warnafter" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="timemodified" NEXT="blockafter"/>
        <FIELD NAME="blockafter" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="warnafter" NEXT="blockperiod"/>
        <FIELD NAME="blockperiod" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="blockafter" NEXT="completiondiscussions"/>
        <FIELD NAME="completiondiscussions" TYPE="int" LENGTH="9" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" COMMENT="Nonzero if a certain number of posts are required to mark this forum completed for a user." PREVIOUS="blockperiod" NEXT="completionreplies"/>
        <FIELD NAME="completionreplies" TYPE="int" LENGTH="9" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" COMMENT="Nonzero if a certain number of replies are required to mark this forum complete for a user." PREVIOUS="completiondiscussions" NEXT="completionposts"/>
        <FIELD NAME="completionposts" TYPE="int" LENGTH="9" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" COMMENT="Nonzero if a certain number of posts or replies (total) are required to mark this forum complete for a user." PREVIOUS="completionreplies"/>
      </FIELDS>
      <KEYS>
        <KEY NAME="primary" TYPE="primary" FIELDS="id"/>
      </KEYS>
      <INDEXES>
        <INDEX NAME="course" UNIQUE="false" FIELDS="course"/>
      </INDEXES>
    </TABLE>
    <TABLE NAME="forum_discussions" COMMENT="Forums are composed of discussions" PREVIOUS="forum" NEXT="forum_posts">
      <FIELDS>
        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" NEXT="course"/>
        <FIELD NAME="course" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="id" NEXT="forum"/>
        <FIELD NAME="forum" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="course" NEXT="name"/>
        <FIELD NAME="name" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false" PREVIOUS="forum" NEXT="firstpost"/>
        <FIELD NAME="firstpost" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="name" NEXT="userid"/>
        <FIELD NAME="userid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="firstpost" NEXT="groupid"/>
        <FIELD NAME="groupid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="false" DEFAULT="-1" SEQUENCE="false" PREVIOUS="userid" NEXT="assessed"/>
        <FIELD NAME="assessed" TYPE="int" LENGTH="1" NOTNULL="true" UNSIGNED="false" DEFAULT="1" SEQUENCE="false" PREVIOUS="groupid" NEXT="timemodified"/>
        <FIELD NAME="timemodified" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="assessed" NEXT="usermodified"/>
        <FIELD NAME="usermodified" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="timemodified" NEXT="timestart"/>
        <FIELD NAME="timestart" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="usermodified" NEXT="timeend"/>
        <FIELD NAME="timeend" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="timestart"/>
      </FIELDS>
      <KEYS>
        <KEY NAME="primary" TYPE="primary" FIELDS="id" NEXT="forum"/>
        <KEY NAME="forum" TYPE="foreign" FIELDS="forum" REFTABLE="forum" REFFIELDS="id" PREVIOUS="primary"/>
      </KEYS>
      <INDEXES>
        <INDEX NAME="userid" UNIQUE="false" FIELDS="userid"/>
      </INDEXES>
    </TABLE>
    <TABLE NAME="forum_posts" COMMENT="All posts are stored in this table" PREVIOUS="forum_discussions" NEXT="forum_queue">
      <FIELDS>
        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" NEXT="discussion"/>
        <FIELD NAME="discussion" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="id" NEXT="parent"/>
        <FIELD NAME="parent" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="discussion" NEXT="userid"/>
        <FIELD NAME="userid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="parent" NEXT="created"/>
        <FIELD NAME="created" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="userid" NEXT="modified"/>
        <FIELD NAME="modified" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="created" NEXT="mailed"/>
        <FIELD NAME="mailed" TYPE="int" LENGTH="2" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="modified" NEXT="subject"/>
        <FIELD NAME="subject" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false" PREVIOUS="mailed" NEXT="message"/>
        <FIELD NAME="message" TYPE="text" LENGTH="small" NOTNULL="true" SEQUENCE="false" PREVIOUS="subject" NEXT="messageformat"/>
        <FIELD NAME="messageformat" TYPE="int" LENGTH="2" NOTNULL="true" UNSIGNED="false" DEFAULT="0" SEQUENCE="false" PREVIOUS="message" NEXT="messagetrust"/>
        <FIELD NAME="messagetrust" TYPE="int" LENGTH="2" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="messageformat" NEXT="attachment"/>
        <FIELD NAME="attachment" TYPE="char" LENGTH="100" NOTNULL="true" SEQUENCE="false" PREVIOUS="messagetrust" NEXT="totalscore"/>
        <FIELD NAME="totalscore" TYPE="int" LENGTH="4" NOTNULL="true" UNSIGNED="false" DEFAULT="0" SEQUENCE="false" PREVIOUS="attachment" NEXT="mailnow"/>
        <FIELD NAME="mailnow" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="totalscore"/>
      </FIELDS>
      <KEYS>
        <KEY NAME="primary" TYPE="primary" FIELDS="id" NEXT="discussion"/>
        <KEY NAME="discussion" TYPE="foreign" FIELDS="discussion" REFTABLE="forum_discussions" REFFIELDS="id" PREVIOUS="primary" NEXT="parent"/>
        <KEY NAME="parent" TYPE="foreign" FIELDS="parent" REFTABLE="forum_posts" REFFIELDS="id" COMMENT="note that to make this recursive FK working someday, the parent field must be decalred NULL" PREVIOUS="discussion"/>
      </KEYS>
      <INDEXES>
        <INDEX NAME="userid" UNIQUE="false" FIELDS="userid" NEXT="created"/>
        <INDEX NAME="created" UNIQUE="false" FIELDS="created" PREVIOUS="userid" NEXT="mailed"/>
        <INDEX NAME="mailed" UNIQUE="false" FIELDS="mailed" PREVIOUS="created"/>
      </INDEXES>
    </TABLE>
    <TABLE NAME="forum_queue" COMMENT="For keeping track of posts that will be mailed in digest form" PREVIOUS="forum_posts" NEXT="forum_subscriptions">
      <FIELDS>
        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" NEXT="userid"/>
        <FIELD NAME="userid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="id" NEXT="discussionid"/>
        <FIELD NAME="discussionid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="userid" NEXT="postid"/>
        <FIELD NAME="postid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="discussionid" NEXT="timemodified"/>
        <FIELD NAME="timemodified" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" COMMENT="The modified time of the original post" PREVIOUS="postid"/>
      </FIELDS>
      <KEYS>
        <KEY NAME="primary" TYPE="primary" FIELDS="id" NEXT="discussionid"/>
        <KEY NAME="discussionid" TYPE="foreign" FIELDS="discussionid" REFTABLE="forum_discussions" REFFIELDS="id" PREVIOUS="primary" NEXT="postid"/>
        <KEY NAME="postid" TYPE="foreign" FIELDS="postid" REFTABLE="forum_posts" REFFIELDS="id" PREVIOUS="discussionid"/>
      </KEYS>
      <INDEXES>
        <INDEX NAME="user" UNIQUE="false" FIELDS="userid"/>
      </INDEXES>
    </TABLE>
    <TABLE NAME="forum_subscriptions" COMMENT="Keeps track of who is subscribed to what forum" PREVIOUS="forum_queue" NEXT="forum_read">
      <FIELDS>
        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" NEXT="userid"/>
        <FIELD NAME="userid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="id" NEXT="forum"/>
        <FIELD NAME="forum" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="userid"/>
      </FIELDS>
      <KEYS>
        <KEY NAME="primary" TYPE="primary" FIELDS="id" NEXT="forum"/>
        <KEY NAME="forum" TYPE="foreign" FIELDS="forum" REFTABLE="forum" REFFIELDS="id" PREVIOUS="primary"/>
      </KEYS>
      <INDEXES>
        <INDEX NAME="userid" UNIQUE="false" FIELDS="userid"/>
      </INDEXES>
    </TABLE>
    <TABLE NAME="forum_read" COMMENT="Tracks each users read posts" PREVIOUS="forum_subscriptions" NEXT="forum_track_prefs">
      <FIELDS>
        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" NEXT="userid"/>
        <FIELD NAME="userid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="id" NEXT="forumid"/>
        <FIELD NAME="forumid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="userid" NEXT="discussionid"/>
        <FIELD NAME="discussionid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="forumid" NEXT="postid"/>
        <FIELD NAME="postid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="discussionid" NEXT="firstread"/>
        <FIELD NAME="firstread" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="postid" NEXT="lastread"/>
        <FIELD NAME="lastread" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="firstread"/>
      </FIELDS>
      <KEYS>
        <KEY NAME="primary" TYPE="primary" FIELDS="id"/>
      </KEYS>
      <INDEXES>
        <INDEX NAME="userid-forumid" UNIQUE="false" FIELDS="userid, forumid" NEXT="userid-discussionid"/>
        <INDEX NAME="userid-discussionid" UNIQUE="false" FIELDS="userid, discussionid" PREVIOUS="userid-forumid" NEXT="userid-postid"/>
        <INDEX NAME="userid-postid" UNIQUE="false" FIELDS="userid, postid" PREVIOUS="userid-discussionid"/>
      </INDEXES>
    </TABLE>
    <TABLE NAME="forum_track_prefs" COMMENT="Tracks each users untracked forums" PREVIOUS="forum_read">
      <FIELDS>
        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" NEXT="userid"/>
        <FIELD NAME="userid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="id" NEXT="forumid"/>
        <FIELD NAME="forumid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="userid"/>
      </FIELDS>
      <KEYS>
        <KEY NAME="primary" TYPE="primary" FIELDS="id"/>
      </KEYS>
      <INDEXES>
        <INDEX NAME="userid-forumid" UNIQUE="false" FIELDS="userid, forumid"/>
      </INDEXES>
    </TABLE>
  </TABLES>
</XMLDB>