Add allowcomments column to view and artefact tables

Signed-off-by: Richard Mansfield <richardm@catalyst.net.nz>

htdocs/lib/db/install.xml

@@ -333,6 +333,7 @@
                 <FIELD NAME="note" TYPE="text" NOTNULL="false" />
                 <FIELD NAME="author" TYPE="int" LENGTH="10" NOTNULL="false" />
                 <FIELD NAME="authorname" TYPE="text" NOTNULL="false" />
+                <FIELD NAME="allowcomments" TYPE="int" LENGTH="1" NOTNULL="true" DEFAULT="0"  />
             </FIELDS>
             <KEYS>
                 <KEY NAME="primary" TYPE="primary" FIELDS="id" />
@@ -580,6 +581,7 @@
                 <FIELD NAME="template" TYPE="int" LENGTH="1" DEFAULT="0" NOTNULL="true" />
                 <FIELD NAME="copynewuser" TYPE="int" LENGTH="1" DEFAULT="0" NOTNULL="true" />
                 <FIELD NAME="type" TYPE="char" LENGTH="50" NOTNULL="true" />
+                <FIELD NAME="allowcomments" TYPE="int" LENGTH="1" NOTNULL="true" DEFAULT="1"  />
             </FIELDS>
             <KEYS>
                 <KEY NAME="primary" TYPE="primary" FIELDS="id" />

htdocs/lib/db/upgrade.php

@@ -1401,9 +1401,16 @@ function xmldb_core_upgrade($oldversion=0) {
             (author IS NULL     AND authorname IS NOT NULL)
         )');
 
+        // Install the comment artefact
         if ($data = check_upgrades('artefact.comment')) {
             upgrade_plugin($data);
         }
+
+        // Flag all views & artefacts to enable/disable comments
+        table_column('artefact', null, 'allowcomments', 'integer', 1);
+        table_column('view', null, 'allowcomments', 'integer', 1, null, 1);
+        // Initially allow comments on blogposts, images, files
+        set_field_select('artefact', 'allowcomments', 1, 'artefacttype IN (?,?,?)', array('blogpost', 'image', 'file'));
     }
 
     return $status;