def getCollection(collectionId, dbSysInst, folderOnly = False):
'''
The basic algrithom for this function is:
1. Find the original collection for the collectionId represented collection
2. Update the collectionId represented collection if possible
3. return the latest collection snapshot for the original collection
So we can always get the latest snapshot for the original collection
'''
#If the collection is an uuid, for example: uuid://xxxx-xxxxxxxx-xxxx-xxxx-xxxx,
#then get the local cache for that object. If no local cache for the object, return the collection directly
if objTools.isUuid(collectionId) or objTools.isUfsFs(collectionId):
#it is uuid://xxxxx or is ufsFs://xxxx
id = objTools.getUuid(collectionId)
#It's a UUID
try:
import localLibs.cache.localFileSystemCache as localFileSystemCache
try:
cacheSys = localFileSystemCache.localFileSystemCache(dbSysInst)
cachedPath = cacheSys.getCached(id)
except KeyError:
cachedPath = None
except ImportError:
cachedPath = None
if cachedPath is None:
#No local path exist, return the collection directly
return collectionBase.collectionBase(collectionId, dbSysInst.getCollectionDb())
elif objTools.isUfsUrl(collectionId):
#It is not uuid://xxx and not ufsFs:xxx, but in other ufs url format like xxxx://xxxxxx
return getCollectionByProtocol(collectionId, dbSysInst)
else:
#The collectionID is not in uuid://xxxx-xxxx-xxxx format. Treat it as a path.
cachedPath = collectionId
#Either it is an ID that pointed to a local filesystem collection or treat it as a directory
try:
#print 'create new cache'
import localLibSys
import localLibs.collection.fileSystem.fileSystemCollection as fileSystemCollection
import cachedCollection
try:
f = fileSystemCollection.fileSystemCollection(cachedPath, folderOnly)
except fileSystemCollection.pathNotExist:
return collectionBase.collectionBase(collectionId, dbSysInst.getCollectionDb())
except fileSystemCollection.pathIsNotCollection:
#print 'pathIsNotCollection, it seems to be a file', collectionId.encode('gbk', 'replace')
return collectionInterface.emptyCollection()
c = cachedCollection.simpleCacheCollection(dbSysInst, f)
#print '----------------------------------'
#print c
return c
except ImportError:
pass
raise undefinedCollection
def updateCollectionFromJson(jsonCollectionStr, htmlGen, dbInst):
r = json.loads(jsonCollectionStr)
for k in r:
if k == "add":
data = r[k]
for i in data:
c = collectionBase.collectionBase(i, dbInst.getCollectionDb())
try:
htmlGen.write(u"adding:"+r[i]+u"<br>")
except:
pass
if type(data[i]) == list:
for j in data[i]:
c.append(j)
else:
c.append(data[i])
elif k == "del":
data = r[k]
for i in data:
c = collectionBase.collectionBase(i, dbInst.getCollectionDb())
try:
htmlGen.write(u"removing:"+r[i]+u"<br>")
except:
pass
if type(data[i]) == list:
for j in data[i]:
c.remove(j)
else:
c.remove(data[i])
elif k == "update":
data = r[k]
for i in data:
c = collectionBase.collectionBase(i, dbInst.getCollectionDb())
try:
htmlGen.write(u"removing:"+r[i]+u"<br>")
except:
pass
l = data[i]
if type(l) == unicode:
l = [l]
c.update(l)
def importCollectionFromJson(jsonCollectionStr, htmlGen):
r = json.loads(jsonCollectionStr)
dbInst = dbSys.dbSysSmart()
for i in r:
c = collectionBase.collectionBase(i, dbInst.getCollectionDb())
try:
htmlGen.write(r[i]+u"<br>")
except:
pass
if type(r[i]) == list:
for j in r[i]:
c.append(j)
else:
c.append(r[i])
