Database changes for file tables

Some minor database changes for file tables. Namely:

 * Added a timestamp to all tables
 * Added a filename column for local files
 * Change some tables that had unnecessary auto-increment primary
   keys when they had another unique column that should act as
   the primary key
 * Change engine from MyISAM to InnoDB for a couple of files.

Also, rebuilt the DB_DataObject files for all these tables.

1 files changed, 18 insertions, 13 deletions

diff --git a/db/laconica.sql b/db/laconica.sql
index 8d1d47d38..95796d5cc 100644
--- a/db/laconica.sql
+++ b/db/laconica.sql
@@ -431,6 +431,7 @@ create table group_inbox (
 ) ENGINE=InnoDB CHARACTER SET utf8 COLLATE utf8_bin;
 
 create table file (
+
     id integer primary key auto_increment,
     url varchar(255) comment 'destination URL after following redirections',
     mimetype varchar(50) comment 'mime type of resource',
@@ -438,13 +439,15 @@ create table file (
     title varchar(255) comment 'title of resource when available',
     date integer(11) comment 'date of resource according to http query',
     protected integer(1) comment 'true when URL is private (needs login)',
+    filename varchar(255) comment 'if a local file, name of the file',
+
+    modified timestamp comment 'date this record was modified',
 
     unique(url)
-) ENGINE=MyISAM CHARACTER SET utf8 COLLATE utf8_general_ci;
+) ENGINE=InnoDB CHARACTER SET utf8 COLLATE utf8_general_ci;
 
 create table file_oembed (
-    id integer primary key auto_increment,
-    file_id integer comment 'oEmbed for that URL/file' references file (id),
+    file_id integer primary key comment 'oEmbed for that URL/file' references file (id),
     version varchar(20) comment 'oEmbed spec. version',
     type varchar(20) comment 'oEmbed type: photo, video, link, rich',
     provider varchar(50) comment 'name of this oEmbed provider',
@@ -456,37 +459,39 @@ create table file_oembed (
     author_name varchar(50) comment 'author name for this oEmbed resource',
     author_url varchar(255) comment 'author URL for this oEmbed resource',
     url varchar(255) comment 'URL for this oEmbed resource when applicable (photo, link)',
+    modified timestamp comment 'date this record was modified'
 
-    unique(file_id)
-) ENGINE=MyISAM CHARACTER SET utf8 COLLATE utf8_general_ci;
+) ENGINE=InnoDB CHARACTER SET utf8 COLLATE utf8_general_ci;
 
 create table file_redirection (
-    id integer primary key auto_increment,
-    url varchar(255) comment 'short URL (or any other kind of redirect) for file (id)',
+
+    url varchar(255) primary key comment 'short URL (or any other kind of redirect) for file (id)',
     file_id integer comment 'short URL for what URL/file' references file (id),
     redirections integer comment 'redirect count',
     httpcode integer comment 'HTTP status code (20x, 30x, etc.)',
+    modified timestamp comment 'date this record was modified'
 
-    unique(url)
 ) ENGINE=InnoDB CHARACTER SET utf8 COLLATE utf8_bin;
 
 create table file_thumbnail (
-    id integer primary key auto_increment,
-    file_id integer comment 'thumbnail for what URL/file' references file (id),
+
+    file_id integer primary key comment 'thumbnail for what URL/file' references file (id),
     url varchar(255) comment 'URL of thumbnail',
     width integer comment 'width of thumbnail',
     height integer comment 'height of thumbnail',
+    modified timestamp comment 'date this record was modified',
 
-    unique(file_id),
     unique(url)
 ) ENGINE=InnoDB CHARACTER SET utf8 COLLATE utf8_bin;
 
 create table file_to_post (
-    id integer primary key auto_increment,
+
     file_id integer comment 'id of URL/file' references file (id),
     post_id integer comment 'id of the notice it belongs to' references notice (id),
+    modified timestamp comment 'date this record was modified',
+
+    constraint primary key (file_id, post_id)
 
-    unique(file_id, post_id)
 ) ENGINE=InnoDB CHARACTER SET utf8 COLLATE utf8_bin;
 
 create table design (