class Command(BaseCommand):
help = """Tasks for managing eXist-db index configuration file.
Available subcommands:
load - load index configuration file to eXist
show - show the contents of index configuration file currently in eXist
show-info - show information about index configuration file in eXist (owner, date modified, etc.)
remove - remove index configuration from eXist
"""
args = 'load | show | show-info | remove'
def handle(self, *args, **options):
if not len(args) or args[0] == 'help':
print self.help
return
cmd = args[0]
if cmd not in ['load', 'show', 'show-info', 'remove']:
print "Command '%s' not recognized" % cmd
print self.help
return
# check for required settings (used in all modes)
if not hasattr(settings, 'EXISTDB_ROOT_COLLECTION') or not settings.EXISTDB_ROOT_COLLECTION:
raise CommandError("EXISTDB_ROOT_COLLECTION setting is missing")
return
if not hasattr(settings, 'EXISTDB_INDEX_CONFIGFILE') or not settings.EXISTDB_INDEX_CONFIGFILE:
raise CommandError("EXISTDB_INDEX_CONFIGFILE setting is missing")
return
collection = settings.EXISTDB_ROOT_COLLECTION
index = settings.EXISTDB_INDEX_CONFIGFILE
try:
self.db = ExistDB()
# check there is already an index config
hasindex = self.db.hasCollectionIndex(collection)
# for all commands but load, nothing to do if config collection does not exist
if not hasindex and cmd != 'load':
print "Collection %s has no index configuration" % collection
return
if cmd == 'load':
# load collection index to eXist
# no easy way to check if index is different, but give some info to user to help indicate
if hasindex:
index_desc = self.db.describeDocument(self.db._collectionIndexPath(collection))
print "Collection already has an index configuration; last modified %s\n" % index_desc['modified']
else:
print "This appears to be a new index configuration\n"
message = "eXist index configuration \n collection:\t%s\n index file:\t%s" % (collection, index)
success = self.db.loadCollectionIndex(collection, open(index))
if success:
print "Succesfully updated %s" % message
print """
If your collection already contains data and the index configuration
is new or has changed, you should reindex the collection.
"""
else:
raise CommandError("Failed to update %s" % message)
elif cmd == 'show':
# show the contents of the the collection index config file in exist
print self.db.getDoc(self.db._collectionIndexPath(collection))
elif cmd == 'show-info':
# show information about the collection index config file in exist
index_desc = self.db.describeDocument(self.db._collectionIndexPath(collection))
for field, val in index_desc.items():
print "%s:\t%s" % (field, val)
elif cmd == 'remove':
# remove any collection index in eXist
if self.db.removeCollectionIndex(collection):
print "Removed collection index configuration for %s" % collection
else:
raise CommandError("Failed to remove collection index configuration for %s" % collection)
except Exception, err:
# better error messages would be nice...
raise CommandError(err)
