From: stronk7 <stronk7>
Date: Sat, 14 Jul 2007 19:20:43 +0000 (+0000)
Subject: Big reordering of table creation, following all dependencies (FKs)
X-Git-Url: http://git.mjollnir.org/gw?a=commitdiff_plain;h=d3f31bf2d9b8d2bfc7701aa32005610401d177dc;p=moodle.git

Big reordering of table creation, following all dependencies (FKs)
Small fix in some FKs pointing to wrong tables. Nothing else changed.
---

diff --git a/lib/db/install.xml b/lib/db/install.xml
index 7ca49e223b..047e765c5b 100644
--- a/lib/db/install.xml
+++ b/lib/db/install.xml
@@ -432,7 +432,7 @@
         <INDEX NAME="userid-contactid" UNIQUE="true" FIELDS="userid, contactid"/>
       </INDEXES>
     </TABLE>
-    <TABLE NAME="modules" COMMENT="modules available in the site" PREVIOUS="message_contacts" NEXT="scale">
+    <TABLE NAME="modules" COMMENT="modules available in the site" PREVIOUS="message_contacts" NEXT="sessions2">
       <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"/>
@@ -449,24 +449,7 @@
         <INDEX NAME="name" UNIQUE="false" FIELDS="name"/>
       </INDEXES>
     </TABLE>
-    <TABLE NAME="scale" COMMENT="Defines grading scales" PREVIOUS="modules" NEXT="sessions2">
-      <FIELDS>
-        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" ENUM="false" NEXT="courseid"/>
-        <FIELD NAME="courseid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" ENUM="false" PREVIOUS="id" NEXT="userid"/>
-        <FIELD NAME="userid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" ENUM="false" PREVIOUS="courseid" NEXT="name"/>
-        <FIELD NAME="name" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false" ENUM="false" PREVIOUS="userid" NEXT="scale"/>
-        <FIELD NAME="scale" TYPE="text" LENGTH="small" NOTNULL="true" SEQUENCE="false" ENUM="false" PREVIOUS="name" NEXT="description"/>
-        <FIELD NAME="description" TYPE="text" LENGTH="small" NOTNULL="true" SEQUENCE="false" ENUM="false" PREVIOUS="scale" NEXT="timemodified"/>
-        <FIELD NAME="timemodified" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" ENUM="false" PREVIOUS="description"/>
-      </FIELDS>
-      <KEYS>
-        <KEY NAME="primary" TYPE="primary" FIELDS="id" COMMENT="Primary key for scale"/>
-      </KEYS>
-      <INDEXES>
-        <INDEX NAME="courseid" UNIQUE="false" FIELDS="courseid"/>
-      </INDEXES>
-    </TABLE>
-    <TABLE NAME="sessions2" COMMENT="Optional database session storage in new format, not used by default" PREVIOUS="scale" NEXT="adodb_logsql">
+    <TABLE NAME="sessions2" COMMENT="Optional database session storage in new format, not used by default" PREVIOUS="modules" NEXT="adodb_logsql">
       <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"/>
@@ -602,7 +585,7 @@
         <INDEX NAME="userid-name" UNIQUE="true" FIELDS="userid, name"/>
       </INDEXES>
     </TABLE>
-    <TABLE NAME="user_lastaccess" COMMENT="To keep track of course page access times, used in online participants block, and participants list" PREVIOUS="user_preferences" NEXT="stats_daily">
+    <TABLE NAME="user_lastaccess" COMMENT="To keep track of course page access times, used in online participants block, and participants list" PREVIOUS="user_preferences" NEXT="scale">
       <FIELDS>
         <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" ENUM="false" NEXT="userid"/>
         <FIELD NAME="userid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" ENUM="false" PREVIOUS="id" NEXT="courseid"/>
@@ -618,7 +601,48 @@
         <INDEX NAME="courseid" UNIQUE="false" FIELDS="courseid" PREVIOUS="userid"/>
       </INDEXES>
     </TABLE>
-    <TABLE NAME="stats_daily" COMMENT="to accumulate daily stats" PREVIOUS="user_lastaccess" NEXT="stats_weekly">
+    <TABLE NAME="scale" COMMENT="Defines grading scales" PREVIOUS="user_lastaccess" NEXT="scale_history">
+      <FIELDS>
+        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" ENUM="false" NEXT="courseid"/>
+        <FIELD NAME="courseid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" ENUM="false" PREVIOUS="id" NEXT="userid"/>
+        <FIELD NAME="userid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" ENUM="false" PREVIOUS="courseid" NEXT="name"/>
+        <FIELD NAME="name" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false" ENUM="false" PREVIOUS="userid" NEXT="scale"/>
+        <FIELD NAME="scale" TYPE="text" LENGTH="small" NOTNULL="true" SEQUENCE="false" ENUM="false" PREVIOUS="name" NEXT="description"/>
+        <FIELD NAME="description" TYPE="text" LENGTH="small" NOTNULL="true" SEQUENCE="false" ENUM="false" PREVIOUS="scale" NEXT="timemodified"/>
+        <FIELD NAME="timemodified" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" ENUM="false" PREVIOUS="description"/>
+      </FIELDS>
+      <KEYS>
+        <KEY NAME="primary" TYPE="primary" FIELDS="id" COMMENT="Primary key for scale"/>
+      </KEYS>
+      <INDEXES>
+        <INDEX NAME="courseid" UNIQUE="false" FIELDS="courseid"/>
+      </INDEXES>
+    </TABLE>
+    <TABLE NAME="scale_history" COMMENT="History table" PREVIOUS="scale" NEXT="stats_daily">
+      <FIELDS>
+        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" ENUM="false" NEXT="action"/>
+        <FIELD NAME="action" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="false" DEFAULT="0" SEQUENCE="false" ENUM="false" COMMENT="created/modified/deleted constants" PREVIOUS="id" NEXT="oldid"/>
+        <FIELD NAME="oldid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="false" SEQUENCE="false" ENUM="false" COMMENT="id of the table, please edit me" PREVIOUS="action" NEXT="source"/>
+        <FIELD NAME="source" TYPE="char" LENGTH="255" NOTNULL="false" SEQUENCE="false" ENUM="false" COMMENT="What caused the modification? manual/module/import/..." PREVIOUS="oldid" NEXT="timemodified"/>
+        <FIELD NAME="timemodified" TYPE="int" LENGTH="10" NOTNULL="false" UNSIGNED="true" SEQUENCE="false" ENUM="false" COMMENT="The last time this grade_item was modified" PREVIOUS="source" NEXT="loggeduser"/>
+        <FIELD NAME="loggeduser" TYPE="int" LENGTH="10" NOTNULL="false" UNSIGNED="true" SEQUENCE="false" ENUM="false" COMMENT="the userid of the person who last modified this outcome" PREVIOUS="timemodified" NEXT="courseid"/>
+        <FIELD NAME="courseid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" ENUM="false" PREVIOUS="loggeduser" NEXT="userid"/>
+        <FIELD NAME="userid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" ENUM="false" PREVIOUS="courseid" NEXT="name"/>
+        <FIELD NAME="name" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false" ENUM="false" PREVIOUS="userid" NEXT="scale"/>
+        <FIELD NAME="scale" TYPE="text" LENGTH="small" NOTNULL="true" SEQUENCE="false" ENUM="false" PREVIOUS="name" NEXT="description"/>
+        <FIELD NAME="description" TYPE="text" LENGTH="small" NOTNULL="true" SEQUENCE="false" ENUM="false" PREVIOUS="scale"/>
+      </FIELDS>
+      <KEYS>
+        <KEY NAME="primary" TYPE="primary" FIELDS="id" COMMENT="primary key of the table, please edit me" NEXT="oldid"/>
+        <KEY NAME="oldid" TYPE="foreign" FIELDS="oldid" REFTABLE="scale" REFFIELDS="id" PREVIOUS="primary" NEXT="courseid"/>
+        <KEY NAME="courseid" TYPE="foreign" FIELDS="courseid" REFTABLE="course" REFFIELDS="id" PREVIOUS="oldid" NEXT="loggeduser"/>
+        <KEY NAME="loggeduser" TYPE="foreign" FIELDS="loggeduser" REFTABLE="user" REFFIELDS="id" PREVIOUS="courseid"/>
+      </KEYS>
+      <INDEXES>
+        <INDEX NAME="action" UNIQUE="false" FIELDS="action" COMMENT="insert/update/delete"/>
+      </INDEXES>
+    </TABLE>
+    <TABLE NAME="stats_daily" COMMENT="to accumulate daily stats" PREVIOUS="scale_history" NEXT="stats_weekly">
       <FIELDS>
         <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" ENUM="false" NEXT="courseid"/>
         <FIELD NAME="courseid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" ENUM="false" PREVIOUS="id" NEXT="timeend"/>
@@ -1192,7 +1216,7 @@
         <INDEX NAME="mnethostid_username" UNIQUE="true" FIELDS="mnet_host_id, username"/>
       </INDEXES>
     </TABLE>
-    <TABLE NAME="mnet_application" COMMENT="Information about applications on remote hosts" PREVIOUS="mnet_sso_access_control" NEXT="events_handlers">
+    <TABLE NAME="mnet_application" COMMENT="Information about applications on remote hosts" PREVIOUS="mnet_sso_access_control" NEXT="events_queue">
       <FIELDS>
         <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" ENUM="false" NEXT="name"/>
         <FIELD NAME="name" TYPE="char" LENGTH="50" NOTNULL="true" SEQUENCE="false" ENUM="false" PREVIOUS="id" NEXT="display_name"/>
@@ -1204,7 +1228,20 @@
         <KEY NAME="primary" TYPE="primary" FIELDS="id" COMMENT="Primary key for mnet_application"/>
       </KEYS>
     </TABLE>
-    <TABLE NAME="events_handlers" COMMENT="This table is for storing which components requests what type of event, and the location of the responsible handlers. For example, the assignment registers 'grade_updated' event with a function assignment_grade_handler() that should be called event time an 'grade_updated' event is triggered by grade_update() function." PREVIOUS="mnet_application" NEXT="events_queue">
+    <TABLE NAME="events_queue" COMMENT="This table is for storing queued events. It stores only one copy of the eventdata here, and entries from this table are being references by the event_queue_handlers table." PREVIOUS="mnet_application" NEXT="events_handlers">
+      <FIELDS>
+        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" ENUM="false" COMMENT="id of the table, please edit me" NEXT="eventdata"/>
+        <FIELD NAME="eventdata" TYPE="text" LENGTH="big" NOTNULL="true" SEQUENCE="false" ENUM="false" COMMENT="serialized version of the data object passed to the event handler." PREVIOUS="id" NEXT="stackdump"/>
+        <FIELD NAME="stackdump" TYPE="text" LENGTH="medium" NOTNULL="false" SEQUENCE="false" ENUM="false" COMMENT="serialized debug_backtrace showing where the event was fired from" PREVIOUS="eventdata" NEXT="userid"/>
+        <FIELD NAME="userid" TYPE="int" LENGTH="10" NOTNULL="false" UNSIGNED="true" SEQUENCE="false" ENUM="false" COMMENT="$USER-&amp;gt;id when the event was fired" PREVIOUS="stackdump" NEXT="timecreated"/>
+        <FIELD NAME="timecreated" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="false" ENUM="false" COMMENT="time stamp of the first time this was added" PREVIOUS="userid"/>
+      </FIELDS>
+      <KEYS>
+        <KEY NAME="primary" TYPE="primary" FIELDS="id" COMMENT="primary key of the table, please edit me" NEXT="userid"/>
+        <KEY NAME="userid" TYPE="foreign" FIELDS="userid" REFTABLE="user" REFFIELDS="id" PREVIOUS="primary"/>
+      </KEYS>
+    </TABLE>
+    <TABLE NAME="events_handlers" COMMENT="This table is for storing which components requests what type of event, and the location of the responsible handlers. For example, the assignment registers 'grade_updated' event with a function assignment_grade_handler() that should be called event time an 'grade_updated' event is triggered by grade_update() function." PREVIOUS="events_queue" NEXT="events_queue_handlers">
       <FIELDS>
         <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" ENUM="false" COMMENT="id of the table, please edit me" NEXT="eventname"/>
         <FIELD NAME="eventname" TYPE="char" LENGTH="166" NOTNULL="true" SEQUENCE="false" ENUM="false" COMMENT="name of the event, e.g. 'grade_updated'" PREVIOUS="id" NEXT="handlermodule"/>
@@ -1221,20 +1258,7 @@
         <INDEX NAME="eventname-handlermodule" UNIQUE="true" FIELDS="eventname, handlermodule"/>
       </INDEXES>
     </TABLE>
-    <TABLE NAME="events_queue" COMMENT="This table is for storing queued events. It stores only one copy of the eventdata here, and entries from this table are being references by the event_queue_handlers table." PREVIOUS="events_handlers" NEXT="events_queue_handlers">
-      <FIELDS>
-        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" ENUM="false" COMMENT="id of the table, please edit me" NEXT="eventdata"/>
-        <FIELD NAME="eventdata" TYPE="text" LENGTH="big" NOTNULL="true" SEQUENCE="false" ENUM="false" COMMENT="serialized version of the data object passed to the event handler." PREVIOUS="id" NEXT="stackdump"/>
-        <FIELD NAME="stackdump" TYPE="text" LENGTH="medium" NOTNULL="false" SEQUENCE="false" ENUM="false" COMMENT="serialized debug_backtrace showing where the event was fired from" PREVIOUS="eventdata" NEXT="userid"/>
-        <FIELD NAME="userid" TYPE="int" LENGTH="10" NOTNULL="false" UNSIGNED="true" SEQUENCE="false" ENUM="false" COMMENT="$USER-&amp;gt;id when the event was fired" PREVIOUS="stackdump" NEXT="timecreated"/>
-        <FIELD NAME="timecreated" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="false" ENUM="false" COMMENT="time stamp of the first time this was added" PREVIOUS="userid"/>
-      </FIELDS>
-      <KEYS>
-        <KEY NAME="primary" TYPE="primary" FIELDS="id" COMMENT="primary key of the table, please edit me" NEXT="userid"/>
-        <KEY NAME="userid" TYPE="foreign" FIELDS="userid" REFTABLE="user" REFFIELDS="id" PREVIOUS="primary"/>
-      </KEYS>
-    </TABLE>
-    <TABLE NAME="events_queue_handlers" COMMENT="This is the list of queued handlers for processing. The event object is retrieved from the events_queue table. When no further reference is made to the event_queues table, the corresponding entry in the events_queue table should be deleted. Entry should get deleted after a successful event processing by the specified handler." PREVIOUS="events_queue" NEXT="grade_items">
+    <TABLE NAME="events_queue_handlers" COMMENT="This is the list of queued handlers for processing. The event object is retrieved from the events_queue table. When no further reference is made to the event_queues table, the corresponding entry in the events_queue table should be deleted. Entry should get deleted after a successful event processing by the specified handler." PREVIOUS="events_handlers" NEXT="grade_outcomes">
       <FIELDS>
         <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" ENUM="false" COMMENT="id of the table, please edit me" NEXT="queuedeventid"/>
         <FIELD NAME="queuedeventid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="false" ENUM="false" COMMENT="foreign key id corresponding to the id of the event_queues table" PREVIOUS="id" NEXT="handlerid"/>
@@ -1249,7 +1273,45 @@
         <KEY NAME="handlerid" TYPE="foreign" FIELDS="handlerid" REFTABLE="events_handlers" REFFIELDS="id" PREVIOUS="queuedeventid"/>
       </KEYS>
     </TABLE>
-    <TABLE NAME="grade_items" COMMENT="This table keeps information about gradeable items (ie columns). If an activity (eg an assignment or quiz) has multiple grade_items associated with it (eg several outcomes or numerical grades), then there will be a corresponding multiple number of rows in this table." PREVIOUS="events_queue_handlers" NEXT="grade_categories">
+    <TABLE NAME="grade_outcomes" COMMENT="This table describes the outcomes used in the system. An outcome is a statement tied to a rubric scale from low to high, such as “Not met, Borderline, Met” (stored as 0,1 or 2)" PREVIOUS="events_queue_handlers" NEXT="grade_categories">
+      <FIELDS>
+        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" ENUM="false" COMMENT="id of the table, please edit me" NEXT="courseid"/>
+        <FIELD NAME="courseid" TYPE="int" LENGTH="10" NOTNULL="false" UNSIGNED="true" SEQUENCE="false" ENUM="false" COMMENT="Mostly these are defined site wide ie NULL" PREVIOUS="id" NEXT="shortname"/>
+        <FIELD NAME="shortname" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false" ENUM="false" COMMENT="The short name or code for this outcome statement" PREVIOUS="courseid" NEXT="fullname"/>
+        <FIELD NAME="fullname" TYPE="text" LENGTH="small" NOTNULL="true" SEQUENCE="false" ENUM="false" COMMENT="The full description of the outcome (usually 1 sentence)" PREVIOUS="shortname" NEXT="scaleid"/>
+        <FIELD NAME="scaleid" TYPE="int" LENGTH="10" NOTNULL="false" UNSIGNED="true" SEQUENCE="false" ENUM="false" COMMENT="The recommended scale for this outcome." PREVIOUS="fullname" NEXT="timecreated"/>
+        <FIELD NAME="timecreated" TYPE="int" LENGTH="10" NOTNULL="false" UNSIGNED="true" SEQUENCE="false" ENUM="false" COMMENT="the time this outcome was first created" PREVIOUS="scaleid" NEXT="timemodified"/>
+        <FIELD NAME="timemodified" TYPE="int" LENGTH="10" NOTNULL="false" UNSIGNED="true" SEQUENCE="false" ENUM="false" COMMENT="the time this outcome was last updated" PREVIOUS="timecreated" NEXT="usermodified"/>
+        <FIELD NAME="usermodified" TYPE="int" LENGTH="10" NOTNULL="false" UNSIGNED="true" SEQUENCE="false" ENUM="false" COMMENT="the userid of the person who last modified this outcome" PREVIOUS="timemodified"/>
+      </FIELDS>
+      <KEYS>
+        <KEY NAME="primary" TYPE="primary" FIELDS="id" COMMENT="primary key of the table, please edit me" NEXT="courseid"/>
+        <KEY NAME="courseid" TYPE="foreign" FIELDS="courseid" REFTABLE="course" REFFIELDS="id" PREVIOUS="primary" NEXT="scaleid"/>
+        <KEY NAME="scaleid" TYPE="foreign" FIELDS="scaleid" REFTABLE="scale" REFFIELDS="id" PREVIOUS="courseid" NEXT="usermodified"/>
+        <KEY NAME="usermodified" TYPE="foreign" FIELDS="usermodified" REFTABLE="user" REFFIELDS="id" PREVIOUS="scaleid"/>
+      </KEYS>
+    </TABLE>
+    <TABLE NAME="grade_categories" COMMENT="This table keeps information about categories, used for grouping items." PREVIOUS="grade_outcomes" NEXT="grade_items">
+      <FIELDS>
+        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" ENUM="false" COMMENT="id of the table, please edit me" NEXT="courseid"/>
+        <FIELD NAME="courseid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="false" ENUM="false" COMMENT="The course this grade category is part of" PREVIOUS="id" NEXT="parent"/>
+        <FIELD NAME="parent" TYPE="int" LENGTH="10" NOTNULL="false" UNSIGNED="true" SEQUENCE="false" ENUM="false" COMMENT="Categories can be hierarchical" PREVIOUS="courseid" NEXT="depth"/>
+        <FIELD NAME="depth" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" ENUM="false" COMMENT="How many parents does this category have?" PREVIOUS="parent" NEXT="path"/>
+        <FIELD NAME="path" TYPE="char" LENGTH="255" NOTNULL="false" SEQUENCE="false" ENUM="false" COMMENT="shows the path as /1/2/3 (like course_categories)" PREVIOUS="depth" NEXT="fullname"/>
+        <FIELD NAME="fullname" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false" ENUM="false" COMMENT="The name of this grade category" PREVIOUS="path" NEXT="aggregation"/>
+        <FIELD NAME="aggregation" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="false" DEFAULT="0" SEQUENCE="false" ENUM="false" COMMENT="A constant pointing to one of the predefined aggregation strategies (none, mean,median,sum, etc)" PREVIOUS="fullname" NEXT="keephigh"/>
+        <FIELD NAME="keephigh" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="false" DEFAULT="0" SEQUENCE="false" ENUM="false" COMMENT="Keep only the X highest items" PREVIOUS="aggregation" NEXT="droplow"/>
+        <FIELD NAME="droplow" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="false" DEFAULT="0" SEQUENCE="false" ENUM="false" COMMENT="Drop the X lowest items" PREVIOUS="keephigh" NEXT="timecreated"/>
+        <FIELD NAME="timecreated" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="false" ENUM="false" PREVIOUS="droplow" NEXT="timemodified"/>
+        <FIELD NAME="timemodified" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="false" ENUM="false" PREVIOUS="timecreated"/>
+      </FIELDS>
+      <KEYS>
+        <KEY NAME="primary" TYPE="primary" FIELDS="id" COMMENT="primary key of the table, please edit me" NEXT="courseid"/>
+        <KEY NAME="courseid" TYPE="foreign" FIELDS="courseid" REFTABLE="course" REFFIELDS="id" PREVIOUS="primary" NEXT="parent"/>
+        <KEY NAME="parent" TYPE="foreign" FIELDS="parent" REFTABLE="grade_categories" REFFIELDS="id" PREVIOUS="courseid"/>
+      </KEYS>
+    </TABLE>
+    <TABLE NAME="grade_items" COMMENT="This table keeps information about gradeable items (ie columns). If an activity (eg an assignment or quiz) has multiple grade_items associated with it (eg several outcomes or numerical grades), then there will be a corresponding multiple number of rows in this table." PREVIOUS="grade_categories" NEXT="grade_grades">
       <FIELDS>
         <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" ENUM="false" COMMENT="id of the table, please edit me" NEXT="courseid"/>
         <FIELD NAME="courseid" TYPE="int" LENGTH="10" NOTNULL="false" UNSIGNED="true" SEQUENCE="false" ENUM="false" COMMENT="The course this item is part of" PREVIOUS="id" NEXT="categoryid"/>
@@ -1286,27 +1348,7 @@
         <KEY NAME="outcomeid" TYPE="foreign" FIELDS="outcomeid" REFTABLE="grade_outcomes" REFFIELDS="id" PREVIOUS="scaleid"/>
       </KEYS>
     </TABLE>
-    <TABLE NAME="grade_categories" COMMENT="This table keeps information about categories, used for grouping items." PREVIOUS="grade_items" NEXT="grade_grades">
-      <FIELDS>
-        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" ENUM="false" COMMENT="id of the table, please edit me" NEXT="courseid"/>
-        <FIELD NAME="courseid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="false" ENUM="false" COMMENT="The course this grade category is part of" PREVIOUS="id" NEXT="parent"/>
-        <FIELD NAME="parent" TYPE="int" LENGTH="10" NOTNULL="false" UNSIGNED="true" SEQUENCE="false" ENUM="false" COMMENT="Categories can be hierarchical" PREVIOUS="courseid" NEXT="depth"/>
-        <FIELD NAME="depth" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" ENUM="false" COMMENT="How many parents does this category have?" PREVIOUS="parent" NEXT="path"/>
-        <FIELD NAME="path" TYPE="char" LENGTH="255" NOTNULL="false" SEQUENCE="false" ENUM="false" COMMENT="shows the path as /1/2/3 (like course_categories)" PREVIOUS="depth" NEXT="fullname"/>
-        <FIELD NAME="fullname" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false" ENUM="false" COMMENT="The name of this grade category" PREVIOUS="path" NEXT="aggregation"/>
-        <FIELD NAME="aggregation" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="false" DEFAULT="0" SEQUENCE="false" ENUM="false" COMMENT="A constant pointing to one of the predefined aggregation strategies (none, mean,median,sum, etc)" PREVIOUS="fullname" NEXT="keephigh"/>
-        <FIELD NAME="keephigh" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="false" DEFAULT="0" SEQUENCE="false" ENUM="false" COMMENT="Keep only the X highest items" PREVIOUS="aggregation" NEXT="droplow"/>
-        <FIELD NAME="droplow" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="false" DEFAULT="0" SEQUENCE="false" ENUM="false" COMMENT="Drop the X lowest items" PREVIOUS="keephigh" NEXT="timecreated"/>
-        <FIELD NAME="timecreated" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="false" ENUM="false" PREVIOUS="droplow" NEXT="timemodified"/>
-        <FIELD NAME="timemodified" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="false" ENUM="false" PREVIOUS="timecreated"/>
-      </FIELDS>
-      <KEYS>
-        <KEY NAME="primary" TYPE="primary" FIELDS="id" COMMENT="primary key of the table, please edit me" NEXT="courseid"/>
-        <KEY NAME="courseid" TYPE="foreign" FIELDS="courseid" REFTABLE="course" REFFIELDS="id" PREVIOUS="primary" NEXT="parent"/>
-        <KEY NAME="parent" TYPE="foreign" FIELDS="parent" REFTABLE="grade_categories" REFFIELDS="id" PREVIOUS="courseid"/>
-      </KEYS>
-    </TABLE>
-    <TABLE NAME="grade_grades" COMMENT="grade_grades  This table keeps individual grades for each user and each item, exactly as imported or submitted by modules. The rawgrademax/min and rawscaleid are stored here to record the values at the time the grade was stored, because teachers might change this for an activity! All the results are normalised/resampled for the final grade value." PREVIOUS="grade_categories" NEXT="grade_grades_text">
+    <TABLE NAME="grade_grades" COMMENT="grade_grades  This table keeps individual grades for each user and each item, exactly as imported or submitted by modules. The rawgrademax/min and rawscaleid are stored here to record the values at the time the grade was stored, because teachers might change this for an activity! All the results are normalised/resampled for the final grade value." PREVIOUS="grade_items" NEXT="grade_grades_text">
       <FIELDS>
         <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" ENUM="false" COMMENT="id of the table, please edit me" NEXT="itemid"/>
         <FIELD NAME="itemid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="false" ENUM="false" COMMENT="The item this grade belongs to" PREVIOUS="id" NEXT="userid"/>
@@ -1333,7 +1375,7 @@
         <KEY NAME="usermodified" TYPE="foreign" FIELDS="usermodified" REFTABLE="user" REFFIELDS="id" PREVIOUS="rawscaleid"/>
       </KEYS>
     </TABLE>
-    <TABLE NAME="grade_grades_text" COMMENT="This table keeps additional textual information about each individual grade, whether it be automatically generated from the module or entered manually by the teacher. It's here separate from the all-numeric grade_grades for database efficiency reasons." PREVIOUS="grade_grades" NEXT="grade_outcomes">
+    <TABLE NAME="grade_grades_text" COMMENT="This table keeps additional textual information about each individual grade, whether it be automatically generated from the module or entered manually by the teacher. It's here separate from the all-numeric grade_grades for database efficiency reasons." PREVIOUS="grade_grades" NEXT="grade_outcomes_history">
       <FIELDS>
         <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" ENUM="false" COMMENT="id of the table, please edit me" NEXT="gradeid"/>
         <FIELD NAME="gradeid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="false" ENUM="false" PREVIOUS="id" NEXT="information"/>
@@ -1351,25 +1393,59 @@
         <KEY NAME="usermodified" TYPE="foreign" FIELDS="usermodified" REFTABLE="user" REFFIELDS="id" PREVIOUS="gradeid"/>
       </KEYS>
     </TABLE>
-    <TABLE NAME="grade_outcomes" COMMENT="This table describes the outcomes used in the system. An outcome is a statement tied to a rubric scale from low to high, such as “Not met, Borderline, Met” (stored as 0,1 or 2)" PREVIOUS="grade_grades_text" NEXT="grade_items_history">
+    <TABLE NAME="grade_outcomes_history" COMMENT="History table" PREVIOUS="grade_grades_text" NEXT="grade_categories_history">
       <FIELDS>
-        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" ENUM="false" COMMENT="id of the table, please edit me" NEXT="courseid"/>
-        <FIELD NAME="courseid" TYPE="int" LENGTH="10" NOTNULL="false" UNSIGNED="true" SEQUENCE="false" ENUM="false" COMMENT="Mostly these are defined site wide ie NULL" PREVIOUS="id" NEXT="shortname"/>
+        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" ENUM="false" COMMENT="id of the table, please edit me" NEXT="action"/>
+        <FIELD NAME="action" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="false" DEFAULT="0" SEQUENCE="false" ENUM="false" COMMENT="created/modified/deleted constants" PREVIOUS="id" NEXT="oldid"/>
+        <FIELD NAME="oldid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="false" SEQUENCE="false" ENUM="false" COMMENT="id of the table, please edit me" PREVIOUS="action" NEXT="source"/>
+        <FIELD NAME="source" TYPE="char" LENGTH="255" NOTNULL="false" SEQUENCE="false" ENUM="false" COMMENT="What caused the modification? manual/module/import/..." PREVIOUS="oldid" NEXT="timemodified"/>
+        <FIELD NAME="timemodified" TYPE="int" LENGTH="10" NOTNULL="false" UNSIGNED="true" SEQUENCE="false" ENUM="false" COMMENT="The last time this grade_item was modified" PREVIOUS="source" NEXT="loggeduser"/>
+        <FIELD NAME="loggeduser" TYPE="int" LENGTH="10" NOTNULL="false" UNSIGNED="true" SEQUENCE="false" ENUM="false" COMMENT="the userid of the person who last modified this outcome" PREVIOUS="timemodified" NEXT="courseid"/>
+        <FIELD NAME="courseid" TYPE="int" LENGTH="10" NOTNULL="false" UNSIGNED="true" SEQUENCE="false" ENUM="false" COMMENT="Mostly these are defined site wide ie NULL" PREVIOUS="loggeduser" NEXT="shortname"/>
         <FIELD NAME="shortname" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false" ENUM="false" COMMENT="The short name or code for this outcome statement" PREVIOUS="courseid" NEXT="fullname"/>
         <FIELD NAME="fullname" TYPE="text" LENGTH="small" NOTNULL="true" SEQUENCE="false" ENUM="false" COMMENT="The full description of the outcome (usually 1 sentence)" PREVIOUS="shortname" NEXT="scaleid"/>
-        <FIELD NAME="scaleid" TYPE="int" LENGTH="10" NOTNULL="false" UNSIGNED="true" SEQUENCE="false" ENUM="false" COMMENT="The recommended scale for this outcome." PREVIOUS="fullname" NEXT="timecreated"/>
-        <FIELD NAME="timecreated" TYPE="int" LENGTH="10" NOTNULL="false" UNSIGNED="true" SEQUENCE="false" ENUM="false" COMMENT="the time this outcome was first created" PREVIOUS="scaleid" NEXT="timemodified"/>
-        <FIELD NAME="timemodified" TYPE="int" LENGTH="10" NOTNULL="false" UNSIGNED="true" SEQUENCE="false" ENUM="false" COMMENT="the time this outcome was last updated" PREVIOUS="timecreated" NEXT="usermodified"/>
-        <FIELD NAME="usermodified" TYPE="int" LENGTH="10" NOTNULL="false" UNSIGNED="true" SEQUENCE="false" ENUM="false" COMMENT="the userid of the person who last modified this outcome" PREVIOUS="timemodified"/>
+        <FIELD NAME="scaleid" TYPE="int" LENGTH="10" NOTNULL="false" UNSIGNED="true" SEQUENCE="false" ENUM="false" COMMENT="The recommended scale for this outcome." PREVIOUS="fullname"/>
       </FIELDS>
       <KEYS>
-        <KEY NAME="primary" TYPE="primary" FIELDS="id" COMMENT="primary key of the table, please edit me" NEXT="courseid"/>
-        <KEY NAME="courseid" TYPE="foreign" FIELDS="courseid" REFTABLE="course" REFFIELDS="id" PREVIOUS="primary" NEXT="scaleid"/>
-        <KEY NAME="scaleid" TYPE="foreign" FIELDS="scaleid" REFTABLE="scale" REFFIELDS="id" PREVIOUS="courseid" NEXT="usermodified"/>
-        <KEY NAME="usermodified" TYPE="foreign" FIELDS="usermodified" REFTABLE="user" REFFIELDS="id" PREVIOUS="scaleid"/>
+        <KEY NAME="primary" TYPE="primary" FIELDS="id" COMMENT="primary key of the table, please edit me" NEXT="oldid"/>
+        <KEY NAME="oldid" TYPE="foreign" FIELDS="oldid" REFTABLE="grade_outcomes" REFFIELDS="id" PREVIOUS="primary" NEXT="courseid"/>
+        <KEY NAME="courseid" TYPE="foreign" FIELDS="courseid" REFTABLE="course" REFFIELDS="id" PREVIOUS="oldid" NEXT="scaleid"/>
+        <KEY NAME="scaleid" TYPE="foreign" FIELDS="scaleid" REFTABLE="scale" REFFIELDS="id" PREVIOUS="courseid" NEXT="loggeduser"/>
+        <KEY NAME="loggeduser" TYPE="foreign" FIELDS="loggeduser" REFTABLE="user" REFFIELDS="id" PREVIOUS="scaleid"/>
       </KEYS>
+      <INDEXES>
+        <INDEX NAME="action" UNIQUE="false" FIELDS="action" COMMENT="insert/update/delete"/>
+      </INDEXES>
     </TABLE>
-    <TABLE NAME="grade_items_history" COMMENT="History of grade_items" PREVIOUS="grade_outcomes" NEXT="grade_categories_history">
+    <TABLE NAME="grade_categories_history" COMMENT="History of grade_categories" PREVIOUS="grade_outcomes_history" NEXT="grade_items_history">
+      <FIELDS>
+        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" ENUM="false" COMMENT="id of the table, please edit me" NEXT="action"/>
+        <FIELD NAME="action" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="false" DEFAULT="0" SEQUENCE="false" ENUM="false" COMMENT="created/modified/deleted constants" PREVIOUS="id" NEXT="oldid"/>
+        <FIELD NAME="oldid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="false" SEQUENCE="false" ENUM="false" COMMENT="id of the table, please edit me" PREVIOUS="action" NEXT="source"/>
+        <FIELD NAME="source" TYPE="char" LENGTH="255" NOTNULL="false" SEQUENCE="false" ENUM="false" COMMENT="What caused the modification? manual/module/import/..." PREVIOUS="oldid" NEXT="timemodified"/>
+        <FIELD NAME="timemodified" TYPE="int" LENGTH="10" NOTNULL="false" UNSIGNED="true" SEQUENCE="false" ENUM="false" COMMENT="The last time this grade_item was modified" PREVIOUS="source" NEXT="loggeduser"/>
+        <FIELD NAME="loggeduser" TYPE="int" LENGTH="10" NOTNULL="false" UNSIGNED="true" SEQUENCE="false" ENUM="false" COMMENT="the userid of the person who last modified this outcome" PREVIOUS="timemodified" NEXT="courseid"/>
+        <FIELD NAME="courseid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="false" ENUM="false" COMMENT="The course this grade category is part of" PREVIOUS="loggeduser" NEXT="parent"/>
+        <FIELD NAME="parent" TYPE="int" LENGTH="10" NOTNULL="false" UNSIGNED="true" SEQUENCE="false" ENUM="false" COMMENT="Categories can be hierarchical" PREVIOUS="courseid" NEXT="depth"/>
+        <FIELD NAME="depth" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" ENUM="false" COMMENT="How many parents does this category have?" PREVIOUS="parent" NEXT="path"/>
+        <FIELD NAME="path" TYPE="char" LENGTH="255" NOTNULL="false" SEQUENCE="false" ENUM="false" COMMENT="shows the path as /1/2/3 (like course_categories)" PREVIOUS="depth" NEXT="fullname"/>
+        <FIELD NAME="fullname" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false" ENUM="false" COMMENT="The name of this grade category" PREVIOUS="path" NEXT="aggregation"/>
+        <FIELD NAME="aggregation" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="false" DEFAULT="0" SEQUENCE="false" ENUM="false" COMMENT="A constant pointing to one of the predefined aggregation strategies (none, mean,median,sum, etc)" PREVIOUS="fullname" NEXT="keephigh"/>
+        <FIELD NAME="keephigh" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="false" DEFAULT="0" SEQUENCE="false" ENUM="false" COMMENT="Keep only the X highest items" PREVIOUS="aggregation" NEXT="droplow"/>
+        <FIELD NAME="droplow" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="false" DEFAULT="0" SEQUENCE="false" ENUM="false" COMMENT="Drop the X lowest items" PREVIOUS="keephigh"/>
+      </FIELDS>
+      <KEYS>
+        <KEY NAME="primary" TYPE="primary" FIELDS="id" COMMENT="primary key of the table, please edit me" NEXT="oldid"/>
+        <KEY NAME="oldid" TYPE="foreign" FIELDS="oldid" REFTABLE="grade_categories" REFFIELDS="id" PREVIOUS="primary" NEXT="courseid"/>
+        <KEY NAME="courseid" TYPE="foreign" FIELDS="courseid" REFTABLE="course" REFFIELDS="id" PREVIOUS="oldid" NEXT="parent"/>
+        <KEY NAME="parent" TYPE="foreign" FIELDS="parent" REFTABLE="grade_categories" REFFIELDS="id" PREVIOUS="courseid" NEXT="loggeduser"/>
+        <KEY NAME="loggeduser" TYPE="foreign" FIELDS="loggeduser" REFTABLE="user" REFFIELDS="id" PREVIOUS="parent"/>
+      </KEYS>
+      <INDEXES>
+        <INDEX NAME="action" UNIQUE="false" FIELDS="action" COMMENT="insert/update/delete"/>
+      </INDEXES>
+    </TABLE>
+    <TABLE NAME="grade_items_history" COMMENT="History of grade_items" PREVIOUS="grade_categories_history" NEXT="grade_grades_history">
       <FIELDS>
         <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" ENUM="false" COMMENT="id of the table, please edit me" NEXT="action"/>
         <FIELD NAME="action" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="false" DEFAULT="0" SEQUENCE="false" ENUM="false" COMMENT="created/modified/deleted constants" PREVIOUS="id" NEXT="oldid"/>
@@ -1414,35 +1490,7 @@
         <INDEX NAME="action" UNIQUE="false" FIELDS="action" COMMENT="insert/update/delete"/>
       </INDEXES>
     </TABLE>
-    <TABLE NAME="grade_categories_history" COMMENT="History of grade_categories" PREVIOUS="grade_items_history" NEXT="grade_grades_history">
-      <FIELDS>
-        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" ENUM="false" COMMENT="id of the table, please edit me" NEXT="action"/>
-        <FIELD NAME="action" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="false" DEFAULT="0" SEQUENCE="false" ENUM="false" COMMENT="created/modified/deleted constants" PREVIOUS="id" NEXT="oldid"/>
-        <FIELD NAME="oldid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="false" SEQUENCE="false" ENUM="false" COMMENT="id of the table, please edit me" PREVIOUS="action" NEXT="source"/>
-        <FIELD NAME="source" TYPE="char" LENGTH="255" NOTNULL="false" SEQUENCE="false" ENUM="false" COMMENT="What caused the modification? manual/module/import/..." PREVIOUS="oldid" NEXT="timemodified"/>
-        <FIELD NAME="timemodified" TYPE="int" LENGTH="10" NOTNULL="false" UNSIGNED="true" SEQUENCE="false" ENUM="false" COMMENT="The last time this grade_item was modified" PREVIOUS="source" NEXT="loggeduser"/>
-        <FIELD NAME="loggeduser" TYPE="int" LENGTH="10" NOTNULL="false" UNSIGNED="true" SEQUENCE="false" ENUM="false" COMMENT="the userid of the person who last modified this outcome" PREVIOUS="timemodified" NEXT="courseid"/>
-        <FIELD NAME="courseid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="false" ENUM="false" COMMENT="The course this grade category is part of" PREVIOUS="loggeduser" NEXT="parent"/>
-        <FIELD NAME="parent" TYPE="int" LENGTH="10" NOTNULL="false" UNSIGNED="true" SEQUENCE="false" ENUM="false" COMMENT="Categories can be hierarchical" PREVIOUS="courseid" NEXT="depth"/>
-        <FIELD NAME="depth" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" ENUM="false" COMMENT="How many parents does this category have?" PREVIOUS="parent" NEXT="path"/>
-        <FIELD NAME="path" TYPE="char" LENGTH="255" NOTNULL="false" SEQUENCE="false" ENUM="false" COMMENT="shows the path as /1/2/3 (like course_categories)" PREVIOUS="depth" NEXT="fullname"/>
-        <FIELD NAME="fullname" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false" ENUM="false" COMMENT="The name of this grade category" PREVIOUS="path" NEXT="aggregation"/>
-        <FIELD NAME="aggregation" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="false" DEFAULT="0" SEQUENCE="false" ENUM="false" COMMENT="A constant pointing to one of the predefined aggregation strategies (none, mean,median,sum, etc)" PREVIOUS="fullname" NEXT="keephigh"/>
-        <FIELD NAME="keephigh" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="false" DEFAULT="0" SEQUENCE="false" ENUM="false" COMMENT="Keep only the X highest items" PREVIOUS="aggregation" NEXT="droplow"/>
-        <FIELD NAME="droplow" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="false" DEFAULT="0" SEQUENCE="false" ENUM="false" COMMENT="Drop the X lowest items" PREVIOUS="keephigh"/>
-      </FIELDS>
-      <KEYS>
-        <KEY NAME="primary" TYPE="primary" FIELDS="id" COMMENT="primary key of the table, please edit me" NEXT="oldid"/>
-        <KEY NAME="oldid" TYPE="foreign" FIELDS="oldid" REFTABLE="grade_categories" REFFIELDS="id" PREVIOUS="primary" NEXT="courseid"/>
-        <KEY NAME="courseid" TYPE="foreign" FIELDS="courseid" REFTABLE="course" REFFIELDS="id" PREVIOUS="oldid" NEXT="parent"/>
-        <KEY NAME="parent" TYPE="foreign" FIELDS="parent" REFTABLE="grade_categories" REFFIELDS="id" PREVIOUS="courseid" NEXT="loggeduser"/>
-        <KEY NAME="loggeduser" TYPE="foreign" FIELDS="loggeduser" REFTABLE="user" REFFIELDS="id" PREVIOUS="parent"/>
-      </KEYS>
-      <INDEXES>
-        <INDEX NAME="action" UNIQUE="false" FIELDS="action" COMMENT="insert/update/delete"/>
-      </INDEXES>
-    </TABLE>
-    <TABLE NAME="grade_grades_history" COMMENT="History table" PREVIOUS="grade_categories_history" NEXT="grade_grades_text_history">
+    <TABLE NAME="grade_grades_history" COMMENT="History table" PREVIOUS="grade_items_history" NEXT="grade_grades_text_history">
       <FIELDS>
         <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" ENUM="false" COMMENT="id of the table, please edit me" NEXT="action"/>
         <FIELD NAME="action" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="false" DEFAULT="0" SEQUENCE="false" ENUM="false" COMMENT="created/modified/deleted constants" PREVIOUS="id" NEXT="oldid"/>
@@ -1477,7 +1525,7 @@
         <INDEX NAME="action" UNIQUE="false" FIELDS="action" COMMENT="insert/update/delete"/>
       </INDEXES>
     </TABLE>
-    <TABLE NAME="grade_grades_text_history" COMMENT="History table" PREVIOUS="grade_grades_history" NEXT="grade_outcomes_history">
+    <TABLE NAME="grade_grades_text_history" COMMENT="History table" PREVIOUS="grade_grades_history" NEXT="grade_import_newitem">
       <FIELDS>
         <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" ENUM="false" COMMENT="id of the table, please edit me" NEXT="action"/>
         <FIELD NAME="action" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="false" DEFAULT="0" SEQUENCE="false" ENUM="false" COMMENT="created/modified/deleted constants" PREVIOUS="id" NEXT="oldid"/>
@@ -1503,55 +1551,17 @@
         <INDEX NAME="action" UNIQUE="false" FIELDS="action" COMMENT="insert/update/delete"/>
       </INDEXES>
     </TABLE>
-    <TABLE NAME="grade_outcomes_history" COMMENT="History table" PREVIOUS="grade_grades_text_history" NEXT="scale_history">
-      <FIELDS>
-        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" ENUM="false" COMMENT="id of the table, please edit me" NEXT="action"/>
-        <FIELD NAME="action" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="false" DEFAULT="0" SEQUENCE="false" ENUM="false" COMMENT="created/modified/deleted constants" PREVIOUS="id" NEXT="oldid"/>
-        <FIELD NAME="oldid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="false" SEQUENCE="false" ENUM="false" COMMENT="id of the table, please edit me" PREVIOUS="action" NEXT="source"/>
-        <FIELD NAME="source" TYPE="char" LENGTH="255" NOTNULL="false" SEQUENCE="false" ENUM="false" COMMENT="What caused the modification? manual/module/import/..." PREVIOUS="oldid" NEXT="timemodified"/>
-        <FIELD NAME="timemodified" TYPE="int" LENGTH="10" NOTNULL="false" UNSIGNED="true" SEQUENCE="false" ENUM="false" COMMENT="The last time this grade_item was modified" PREVIOUS="source" NEXT="loggeduser"/>
-        <FIELD NAME="loggeduser" TYPE="int" LENGTH="10" NOTNULL="false" UNSIGNED="true" SEQUENCE="false" ENUM="false" COMMENT="the userid of the person who last modified this outcome" PREVIOUS="timemodified" NEXT="courseid"/>
-        <FIELD NAME="courseid" TYPE="int" LENGTH="10" NOTNULL="false" UNSIGNED="true" SEQUENCE="false" ENUM="false" COMMENT="Mostly these are defined site wide ie NULL" PREVIOUS="loggeduser" NEXT="shortname"/>
-        <FIELD NAME="shortname" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false" ENUM="false" COMMENT="The short name or code for this outcome statement" PREVIOUS="courseid" NEXT="fullname"/>
-        <FIELD NAME="fullname" TYPE="text" LENGTH="small" NOTNULL="true" SEQUENCE="false" ENUM="false" COMMENT="The full description of the outcome (usually 1 sentence)" PREVIOUS="shortname" NEXT="scaleid"/>
-        <FIELD NAME="scaleid" TYPE="int" LENGTH="10" NOTNULL="false" UNSIGNED="true" SEQUENCE="false" ENUM="false" COMMENT="The recommended scale for this outcome." PREVIOUS="fullname"/>
-      </FIELDS>
-      <KEYS>
-        <KEY NAME="primary" TYPE="primary" FIELDS="id" COMMENT="primary key of the table, please edit me" NEXT="oldid"/>
-        <KEY NAME="oldid" TYPE="foreign" FIELDS="oldid" REFTABLE="grade_outcomes" REFFIELDS="id" PREVIOUS="primary" NEXT="courseid"/>
-        <KEY NAME="courseid" TYPE="foreign" FIELDS="courseid" REFTABLE="course" REFFIELDS="id" PREVIOUS="oldid" NEXT="scaleid"/>
-        <KEY NAME="scaleid" TYPE="foreign" FIELDS="scaleid" REFTABLE="scale" REFFIELDS="id" PREVIOUS="courseid" NEXT="loggeduser"/>
-        <KEY NAME="loggeduser" TYPE="foreign" FIELDS="loggeduser" REFTABLE="user" REFFIELDS="id" PREVIOUS="scaleid"/>
-      </KEYS>
-      <INDEXES>
-        <INDEX NAME="action" UNIQUE="false" FIELDS="action" COMMENT="insert/update/delete"/>
-      </INDEXES>
-    </TABLE>
-    <TABLE NAME="scale_history" COMMENT="History table" PREVIOUS="grade_outcomes_history" NEXT="grade_import_values">
+    <TABLE NAME="grade_import_newitem" COMMENT="temporary table for storing new grade_item names from grade import" PREVIOUS="grade_grades_text_history" NEXT="grade_import_values">
       <FIELDS>
-        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" ENUM="false" NEXT="action"/>
-        <FIELD NAME="action" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="false" DEFAULT="0" SEQUENCE="false" ENUM="false" COMMENT="created/modified/deleted constants" PREVIOUS="id" NEXT="oldid"/>
-        <FIELD NAME="oldid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="false" SEQUENCE="false" ENUM="false" COMMENT="id of the table, please edit me" PREVIOUS="action" NEXT="source"/>
-        <FIELD NAME="source" TYPE="char" LENGTH="255" NOTNULL="false" SEQUENCE="false" ENUM="false" COMMENT="What caused the modification? manual/module/import/..." PREVIOUS="oldid" NEXT="timemodified"/>
-        <FIELD NAME="timemodified" TYPE="int" LENGTH="10" NOTNULL="false" UNSIGNED="true" SEQUENCE="false" ENUM="false" COMMENT="The last time this grade_item was modified" PREVIOUS="source" NEXT="loggeduser"/>
-        <FIELD NAME="loggeduser" TYPE="int" LENGTH="10" NOTNULL="false" UNSIGNED="true" SEQUENCE="false" ENUM="false" COMMENT="the userid of the person who last modified this outcome" PREVIOUS="timemodified" NEXT="courseid"/>
-        <FIELD NAME="courseid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" ENUM="false" PREVIOUS="loggeduser" NEXT="userid"/>
-        <FIELD NAME="userid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" ENUM="false" PREVIOUS="courseid" NEXT="name"/>
-        <FIELD NAME="name" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false" ENUM="false" PREVIOUS="userid" NEXT="scale"/>
-        <FIELD NAME="scale" TYPE="text" LENGTH="small" NOTNULL="true" SEQUENCE="false" ENUM="false" PREVIOUS="name" NEXT="description"/>
-        <FIELD NAME="description" TYPE="text" LENGTH="small" NOTNULL="true" SEQUENCE="false" ENUM="false" PREVIOUS="scale"/>
+        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" ENUM="false" COMMENT="id of the table, please edit me" NEXT="itemname"/>
+        <FIELD NAME="itemname" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false" ENUM="false" COMMENT="new grade item name" PREVIOUS="id" NEXT="import_code"/>
+        <FIELD NAME="import_code" TYPE="int" LENGTH="12" NOTNULL="true" UNSIGNED="true" SEQUENCE="false" ENUM="false" COMMENT="import batch code for identification" PREVIOUS="itemname"/>
       </FIELDS>
       <KEYS>
-        <KEY NAME="primary" TYPE="primary" FIELDS="id" COMMENT="primary key of the table, please edit me" NEXT="oldid"/>
-        <KEY NAME="oldid" TYPE="foreign" FIELDS="oldid" REFTABLE="scales" REFFIELDS="id" PREVIOUS="primary" NEXT="courseid"/>
-        <KEY NAME="courseid" TYPE="foreign" FIELDS="courseid" REFTABLE="course" REFFIELDS="id" PREVIOUS="oldid" NEXT="loggeduser"/>
-        <KEY NAME="loggeduser" TYPE="foreign" FIELDS="loggeduser" REFTABLE="user" REFFIELDS="id" PREVIOUS="courseid"/>
+        <KEY NAME="primary" TYPE="primary" FIELDS="id" COMMENT="primary key of the table, please edit me"/>
       </KEYS>
-      <INDEXES>
-        <INDEX NAME="action" UNIQUE="false" FIELDS="action" COMMENT="insert/update/delete"/>
-      </INDEXES>
     </TABLE>
-    <TABLE NAME="grade_import_values" COMMENT="Temporary table for importing grades" PREVIOUS="scale_history" NEXT="grade_import_newitem">
+    <TABLE NAME="grade_import_values" COMMENT="Temporary table for importing grades" PREVIOUS="grade_import_newitem">
       <FIELDS>
         <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" ENUM="false" COMMENT="id of the table, please edit me" NEXT="itemid"/>
         <FIELD NAME="itemid" TYPE="int" LENGTH="10" NOTNULL="false" UNSIGNED="true" SEQUENCE="false" ENUM="false" COMMENT="if set, this points to existing grade_items id" PREVIOUS="id" NEXT="newgradeitem"/>
@@ -1567,16 +1577,6 @@
         <KEY NAME="newgradeitem" TYPE="foreign" FIELDS="newgradeitem" REFTABLE="grade_import_newitem" REFFIELDS="id" PREVIOUS="itemid"/>
       </KEYS>
     </TABLE>
-    <TABLE NAME="grade_import_newitem" COMMENT="temporary table for storing new grade_item names from grade import" PREVIOUS="grade_import_values">
-      <FIELDS>
-        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" ENUM="false" COMMENT="id of the table, please edit me" NEXT="itemname"/>
-        <FIELD NAME="itemname" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false" ENUM="false" COMMENT="new grade item name" PREVIOUS="id" NEXT="import_code"/>
-        <FIELD NAME="import_code" TYPE="int" LENGTH="12" NOTNULL="true" UNSIGNED="true" SEQUENCE="false" ENUM="false" COMMENT="import batch code for identification" PREVIOUS="itemname"/>
-      </FIELDS>
-      <KEYS>
-        <KEY NAME="primary" TYPE="primary" FIELDS="id" COMMENT="primary key of the table, please edit me"/>
-      </KEYS>
-    </TABLE>
   </TABLES>
   <STATEMENTS>
     <STATEMENT NAME="insert mnet_application" TYPE="insert" TABLE="mnet_application" COMMENT="Initial insert of records on table mnet_application" NEXT="insert log_display">