diff --git a/mod/kalvidassign/db/install.xml b/mod/kalvidassign/db/install.xml
index 8b131ce6..72d7f0d6 100755
--- a/mod/kalvidassign/db/install.xml
+++ b/mod/kalvidassign/db/install.xml
@@ -4,22 +4,22 @@
     xsi:noNamespaceSchemaLocation="../../../lib/xmldb/xmldb.xsd"
 >
   <TABLES>
-    <TABLE NAME="kalvidassign" COMMENT="Kaltura video assignment module instances are stored here" NEXT="kalvidassign_submission">
+    <TABLE NAME="kalvidassign" COMMENT="Kaltura video assignment module instances are stored here">
       <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" COMMENT="Course id" PREVIOUS="id" NEXT="name"/>
-        <FIELD NAME="name" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false" PREVIOUS="course" NEXT="intro"/>
-        <FIELD NAME="intro" TYPE="text" LENGTH="small" NOTNULL="false" SEQUENCE="false" PREVIOUS="name" NEXT="introformat"/>
-        <FIELD NAME="introformat" TYPE="int" LENGTH="4" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="intro" NEXT="timeavailable"/>
-        <FIELD NAME="timeavailable" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" COMMENT="Time the assignment is available for student submission" PREVIOUS="introformat" NEXT="timedue"/>
-        <FIELD NAME="timedue" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" COMMENT="The time the assignment submissions are due by" PREVIOUS="timeavailable" NEXT="preventlate"/>
-        <FIELD NAME="preventlate" TYPE="int" LENGTH="1" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" COMMENT="Prevent late submissions" PREVIOUS="timedue" NEXT="resubmit"/>
-        <FIELD NAME="resubmit" TYPE="int" LENGTH="1" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" COMMENT="Allow for resubmissions" PREVIOUS="preventlate" NEXT="emailteachers"/>
-        <FIELD NAME="emailteachers" TYPE="int" LENGTH="1" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" COMMENT="Email submissions to the teacher" PREVIOUS="resubmit" NEXT="grade"/>
-        <FIELD NAME="grade" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="false" DEFAULT="0" SEQUENCE="false" COMMENT="Maximum grade the assignment is worth" PREVIOUS="emailteachers" NEXT="timecreated"/>
-        <FIELD NAME="timecreated" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" COMMENT="Time the assignment was created" PREVIOUS="emailteachers" NEXT="timemodified"/>
-        <FIELD NAME="timemodified" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" COMMENT="The time the assignment settings were modified" PREVIOUS="timecreated"/>
-        <FIELD NAME="completionsubmit" TYPE="int" LENGTH="2" NOTNULL="true" DEFAULT="0" SEQUENCE="false" COMMENT="If this field is set to 1, then the activity will be automatically marked as 'complete' once the user submits their assignment." PREVIOUS="timemodified"/>
+        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="true"/>
+        <FIELD NAME="course" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false" COMMENT="Course id"/>
+        <FIELD NAME="name" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="intro" TYPE="text" NOTNULL="false" SEQUENCE="false"/>
+        <FIELD NAME="introformat" TYPE="int" LENGTH="4" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
+        <FIELD NAME="timeavailable" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false" COMMENT="Time the assignment is available for student submission"/>
+        <FIELD NAME="timedue" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false" COMMENT="The time the assignment submissions are due by"/>
+        <FIELD NAME="preventlate" TYPE="int" LENGTH="1" NOTNULL="true" DEFAULT="0" SEQUENCE="false" COMMENT="Prevent late submissions"/>
+        <FIELD NAME="resubmit" TYPE="int" LENGTH="1" NOTNULL="true" DEFAULT="0" SEQUENCE="false" COMMENT="Allow for resubmissions"/>
+        <FIELD NAME="emailteachers" TYPE="int" LENGTH="1" NOTNULL="true" DEFAULT="0" SEQUENCE="false" COMMENT="Email submissions to the teacher"/>
+        <FIELD NAME="grade" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false" COMMENT="Maximum grade the assignment is worth"/>
+        <FIELD NAME="timecreated" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false" COMMENT="Time the assignment was created"/>
+        <FIELD NAME="timemodified" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false" COMMENT="The time the assignment settings were modified"/>
+        <FIELD NAME="completionsubmit" TYPE="int" LENGTH="2" NOTNULL="true" DEFAULT="0" SEQUENCE="false" COMMENT="If this field is set to 1, then the activity will be automatically marked as 'complete' once the user submits their assignment."/>
       </FIELDS>
       <KEYS>
         <KEY NAME="primary" TYPE="primary" FIELDS="id"/>
@@ -28,33 +28,33 @@
         <INDEX NAME="kal_course_idx" UNIQUE="false" FIELDS="course" COMMENT="index on course"/>
       </INDEXES>
     </TABLE>
-    <TABLE NAME="kalvidassign_submission" COMMENT="Kaltura video assignment submissions" PREVIOUS="kalvidassign">
+    <TABLE NAME="kalvidassign_submission" COMMENT="Kaltura video assignment submissions">
       <FIELDS>
-        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" NEXT="vidassignid"/>
-        <FIELD NAME="vidassignid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" COMMENT="Foreign key to the kalvidassign table" PREVIOUS="id" NEXT="userid"/>
-        <FIELD NAME="userid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" COMMENT="Moodle user id" PREVIOUS="vidassignid" NEXT="entry_id"/>
-        <FIELD NAME="entry_id" TYPE="char" LENGTH="50" NOTNULL="true" SEQUENCE="false" COMMENT="Kaltura entry id" PREVIOUS="userid" NEXT="source"/>
-        <FIELD NAME="source" TYPE="text" NOTNULL="false" SEQUENCE="false" COMMENT="The source URL of the media entry." PREVIOUS="entry_id" NEXT="width"/>
-        <FIELD NAME="width" TYPE="int" LENGTH="10" NOTNULL="false" DEFAULT="0" SEQUENCE="false" COMMENT="Iframe width." PREVIOUS="source" NEXT="height"/>
-        <FIELD NAME="height" TYPE="int" LENGTH="10" NOTNULL="false" DEFAULT="0" SEQUENCE="false" COMMENT="Iframe height." PREVIOUS="width" NEXT="grade"/>
-        <FIELD NAME="grade" TYPE="int" LENGTH="11" NOTNULL="true" UNSIGNED="false" DEFAULT="0" SEQUENCE="false" COMMENT="Grade score for the submission" PREVIOUS="height" NEXT="submissioncomment"/>
-        <FIELD NAME="submissioncomment" TYPE="text" LENGTH="medium" NOTNULL="false" SEQUENCE="false" COMMENT="Submission teacher comment" PREVIOUS="grade" NEXT="format"/>
-        <FIELD NAME="format" TYPE="int" LENGTH="4" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="submissioncomment" NEXT="teacher"/>
-        <FIELD NAME="teacher" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" COMMENT="Moodle userId of the teacher who marked the submission" PREVIOUS="format" NEXT="mailed"/>
-        <FIELD NAME="mailed" TYPE="int" LENGTH="1" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" COMMENT="Whether the assignment submission notification has been emailed to the teacher." PREVIOUS="teacher" NEXT="timemarked"/>
-        <FIELD NAME="timemarked" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" COMMENT="Time the assignment submission was marked" PREVIOUS="mailed" NEXT="metadata"/>
-        <FIELD NAME="metadata" TYPE="text" NOTNULL="false" SEQUENCE="false" COMMENT="Stores a base 64 encoded serialized metadata object." PREVIOUS="timemarked" NEXT="timecreated"/>
-        <FIELD NAME="timecreated" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" COMMENT="Time the submission record was created" PREVIOUS="metadata" NEXT="timemodified"/>
-        <FIELD NAME="timemodified" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" COMMENT="Time the assignment submission was modified" PREVIOUS="timecreated"/>
+        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="true"/>
+        <FIELD NAME="vidassignid" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false" COMMENT="Foreign key to the kalvidassign table"/>
+        <FIELD NAME="userid" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false" COMMENT="Moodle user id"/>
+        <FIELD NAME="entry_id" TYPE="char" LENGTH="50" NOTNULL="true" SEQUENCE="false" COMMENT="Kaltura entry id"/>
+        <FIELD NAME="source" TYPE="text" NOTNULL="false" SEQUENCE="false" COMMENT="The source URL of the media entry."/>
+        <FIELD NAME="width" TYPE="int" LENGTH="10" NOTNULL="false" DEFAULT="0" SEQUENCE="false" COMMENT="Iframe width."/>
+        <FIELD NAME="height" TYPE="int" LENGTH="10" NOTNULL="false" DEFAULT="0" SEQUENCE="false" COMMENT="Iframe height."/>
+        <FIELD NAME="grade" TYPE="int" LENGTH="11" NOTNULL="true" DEFAULT="0" SEQUENCE="false" COMMENT="Grade score for the submission"/>
+        <FIELD NAME="submissioncomment" TYPE="text" NOTNULL="false" SEQUENCE="false" COMMENT="Submission teacher comment"/>
+        <FIELD NAME="format" TYPE="int" LENGTH="4" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
+        <FIELD NAME="teacher" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false" COMMENT="Moodle userId of the teacher who marked the submission"/>
+        <FIELD NAME="mailed" TYPE="int" LENGTH="1" NOTNULL="true" DEFAULT="0" SEQUENCE="false" COMMENT="Whether the assignment submission notification has been emailed to the teacher."/>
+        <FIELD NAME="timemarked" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false" COMMENT="Time the assignment submission was marked"/>
+        <FIELD NAME="metadata" TYPE="text" NOTNULL="false" SEQUENCE="false" COMMENT="Stores a base 64 encoded serialized metadata object."/>
+        <FIELD NAME="timecreated" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false" COMMENT="Time the submission record was created"/>
+        <FIELD NAME="timemodified" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false" COMMENT="Time the assignment submission was modified"/>
       </FIELDS>
       <KEYS>
         <KEY NAME="primary" TYPE="primary" FIELDS="id"/>
       </KEYS>
       <INDEXES>
-        <INDEX NAME="kal_vid_assign_idx" UNIQUE="false" FIELDS="vidassignid" COMMENT="Index on the kaltura assignment id" NEXT="kal_userid_idx"/>
-        <INDEX NAME="kal_userid_idx" UNIQUE="false" FIELDS="userid" COMMENT="Index on the Moodle userid" PREVIOUS="kal_vid_assign_idx" NEXT="kal_marked_idx"/>
-        <INDEX NAME="kal_marked_idx" UNIQUE="false" FIELDS="timemarked" COMMENT="Index on the submission marked field" PREVIOUS="kal_userid_idx" NEXT="kal_mailed_idx"/>
-        <INDEX NAME="kal_mailed_idx" UNIQUE="false" FIELDS="mailed" COMMENT="Index on the mailed field" PREVIOUS="kal_marked_idx"/>
+        <INDEX NAME="kal_vid_assign_idx" UNIQUE="false" FIELDS="vidassignid" COMMENT="Index on the kaltura assignment id"/>
+        <INDEX NAME="kal_userid_idx" UNIQUE="false" FIELDS="userid" COMMENT="Index on the Moodle userid"/>
+        <INDEX NAME="kal_marked_idx" UNIQUE="false" FIELDS="timemarked" COMMENT="Index on the submission marked field"/>
+        <INDEX NAME="kal_mailed_idx" UNIQUE="false" FIELDS="mailed" COMMENT="Index on the mailed field"/>
       </INDEXES>
     </TABLE>
   </TABLES>
diff --git a/mod/kalvidres/db/install.xml b/mod/kalvidres/db/install.xml
index 8f876275..0a7a6188 100644
--- a/mod/kalvidres/db/install.xml
+++ b/mod/kalvidres/db/install.xml
@@ -6,21 +6,21 @@
   <TABLES>
     <TABLE NAME="kalvidres" COMMENT="Kaltura video resource module instances are stored here">
       <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="name"/>
-        <FIELD NAME="name" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false" PREVIOUS="course" NEXT="intro"/>
-        <FIELD NAME="intro" TYPE="text" LENGTH="small" NOTNULL="false" SEQUENCE="false" PREVIOUS="name" NEXT="introformat"/>
-        <FIELD NAME="introformat" TYPE="int" LENGTH="4" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="intro" NEXT="entry_id"/>
-        <FIELD NAME="entry_id" TYPE="char" LENGTH="50" NOTNULL="true" SEQUENCE="false" COMMENT="Kaltura video entry ids" PREVIOUS="introformat" NEXT="video_title"/>
-        <FIELD NAME="video_title" TYPE="char" LENGTH="256" NOTNULL="true" SEQUENCE="false" COMMENT="Video title" PREVIOUS="entry_id" NEXT="uiconf_id"/>
-        <FIELD NAME="uiconf_id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" COMMENT="The player to be used for playback" PREVIOUS="video_title" NEXT="widescreen"/>
-        <FIELD NAME="widescreen" TYPE="int" LENGTH="1" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" COMMENT="Video playback dimensions widescreen or normal" PREVIOUS="uiconf_id" NEXT="height"/>
-        <FIELD NAME="height" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" COMMENT="Video height" PREVIOUS="widescreen" NEXT="width"/>
-        <FIELD NAME="width" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false" COMMENT="Video playback width" PREVIOUS="height" NEXT="source" />
-        <FIELD NAME="source" TYPE="text" NOTNULL="false" SEQUENCE="false" COMMENT="The URL to retrieve the rendered video and metadata." PREVIOUS="width" NEXT="metadata"/>
-        <FIELD NAME="metadata" TYPE="text" NOTNULL="false" SEQUENCE="false" COMMENT="Stores a base 64 encoded serialized metadata object." PREVIOUS="source" NEXT="timemodified"/>
-        <FIELD NAME="timemodified" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false" COMMENT="Time modified" PREVIOUS="metadata" NEXT="timecreated"/>
-        <FIELD NAME="timecreated" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" COMMENT="Time created" PREVIOUS="timemodified"/>
+        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="true"/>
+        <FIELD NAME="course" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
+        <FIELD NAME="name" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="intro" TYPE="text" NOTNULL="false" SEQUENCE="false"/>
+        <FIELD NAME="introformat" TYPE="int" LENGTH="4" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
+        <FIELD NAME="entry_id" TYPE="char" LENGTH="50" NOTNULL="true" SEQUENCE="false" COMMENT="Kaltura video entry ids"/>
+        <FIELD NAME="video_title" TYPE="char" LENGTH="256" NOTNULL="true" SEQUENCE="false" COMMENT="Video title"/>
+        <FIELD NAME="uiconf_id" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false" COMMENT="The player to be used for playback"/>
+        <FIELD NAME="widescreen" TYPE="int" LENGTH="1" NOTNULL="true" DEFAULT="0" SEQUENCE="false" COMMENT="Video playback dimensions widescreen or normal"/>
+        <FIELD NAME="height" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false" COMMENT="Video height"/>
+        <FIELD NAME="width" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false" COMMENT="Video playback width"/>
+        <FIELD NAME="source" TYPE="text" NOTNULL="false" SEQUENCE="false" COMMENT="The URL to retrieve the rendered video and metadata."/>
+        <FIELD NAME="metadata" TYPE="text" NOTNULL="false" SEQUENCE="false" COMMENT="Stores a base 64 encoded serialized metadata object."/>
+        <FIELD NAME="timemodified" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false" COMMENT="Time modified"/>
+        <FIELD NAME="timecreated" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false" COMMENT="Time created"/>
       </FIELDS>
       <KEYS>
         <KEY NAME="primary" TYPE="primary" FIELDS="id"/>