View source for Ferret File System/v0.1/SQL/folder

==About==
===fields===
* '''ID_Volume''' is the [[../vols|volume]] on which the folder appears.
** NULL if volume is unknown -- e.g. we might not know what volume a remote [[Samba]] share is on
* '''Name''' is not the full path, just the folder's filename. If it is the root folder of a volume (ID_Parent IS NULL), then Name should ''not'' be included as part of the path; drive letters and such are set in Mappings. Name must always be non-null, so this value is filled with something meaningless like "." if it is a root folder. (Maybe we'll put the volume name in there later.)
* '''noScan''' is for blacklisting folders whose contents we really don't want to track, such as temp and trash areas which may become full of frequently-changing but useless clutter, or areas where things that aren't really files are kept (e.g. "/dev")
* '''FirstFound''' and '''LastFound''' may need to be NULL for root folders. It's not clear why this happens (perhaps they were manually created -- but the code should have time-stamped them -- but possibly this was just an oversight, and wouldn't happen with production code).
===history===
* '''2013-06-30''' Added '''ID_Volume''' field as part of general schema redesign.
==SQL==
<mysql>CREATE TABLE `folders` (
  `ID`          INT NOT NULL AUTO_INCREMENT,
  `ID_Parent`   INT DEFAULT NULL      COMMENT "parent folder; NULL = filesystem root",
  `ID_Volume`   INT DEFAULT NULL      COMMENT "volume on which this folder appears; NULL = unknown",
  `Name`        VARCHAR(255) NOT NULL COMMENT "filesystem's name for the folder",
  `Descr`       VARCHAR(255) DEFAULT NULL COMMENT "description for human consumption (optional; mainly for local roots)",
  `WhenCreated` DATETIME DEFAULT NULL COMMENT "folder's creation timestamp, where available",
  `WhenChanged` DATETIME DEFAULT NULL COMMENT "folder's modification timestamp, where available",
  `FirstFound`  DATETIME DEFAULT NULL COMMENT "time/date when folder was first found during a scan",
  `LastFound`   DATETIME DEFAULT NULL COMMENT "time/date when folder was most recently found during a scan",
  `isFound`     BOOL DEFAULT FALSE    COMMENT "TRUE = was found on most recent scan",
  `noScan`      BOOL DEFAULT FALSE    COMMENT "TRUE = for whatever reason, don't bother scanning inside this folder",
  `wasDenied`   BOOL DEFAULT FALSE    COMMENT "TRUE = filesystem did not allow access on last scan attempt",
  `isRecur`     BOOL DEFAULT FALSE    COMMENT "TRUE = this folder is a repeat of a parent folder, probably due to a recursive link",
  PRIMARY KEY(`ID`)
)
ENGINE = MYISAM;</mysql>