Versioned Metadata

docs/changelog/7.x.x.txt

@@ -5,6 +5,8 @@
  - fixed #12043: Collaboration Systems don't pull mail that fast!
  - fixed #12044: Spectre::Cron and non-integer time units
  - fixed #12046: Empty AssetProxy creates infinite loop (Dale Trexel)
+ - Metadata is now versioned
+ - Metadata fields can be restricted by asset class
 
 7.10.9
  - fixed #12030: Calendar Feed Time Zone Issue

docs/gotcha.txt

@@ -7,6 +7,10 @@ upgrading from one version to the next, or even between multiple
 versions. Be sure to heed the warnings contained herein as they will
 save you many hours of grief.
 
+7.10.10
+--------------------------------------------------------------------
+    * Asset metadata is now versioned.
+
 7.10.9
 --------------------------------------------------------------------
     * WebGUI now depends on Data::ICal for making and reading iCal feeds

docs/upgrades/upgrade_7.10.9-7.10.10.pl

@@ -32,7 +32,7 @@ my $session = start(); # this line required
 
 # upgrade functions go here
 convertCsMailInterval($session);
-
+addVersioningToMetadata($session);
 finish($session); # this line required
 
 
@@ -72,6 +72,25 @@ sub convertCsMailInterval {
     print "DONE!\n" unless $quiet;
 }
 
+sub addVersioningToMetadata {
+    my $session = shift;
+    print "\tAltering metadata tables for versioning..." unless $quiet;
+    my $db = $session->db;
+    $db->write(q{
+        alter table metaData_values
+            add column revisionDate bigint,
+            drop primary key,
+            add primary key (fieldId, assetId, revisionDate);
+    });
+    $db->write(q{
+        create table metaData_classes (
+            className char(255),
+            fieldId   char(22)
+        );
+    });
+    print "DONE!\n" unless $quiet;
+}
+
 
 # -------------- DO NOT EDIT BELOW THIS LINE --------------------------------