def update(request):
rtName = request.REQUEST.get("name", "")
redirectURL = '/cloudman/message/?msg='
groups = request.META.get('ADFS_GROUP','')
groupsList = groups.split(';') ;
userIsSuperUser = isSuperUser(groupsList)
## Check - Logged in user has administrative privileges
if not userIsSuperUser:
message = "You don't have cloudman resource manager privileges. Hence you are not authorized to update Resource Type " + rtName;
html = "<html><body> %s.</body></html>" % message
return HttpResponse(html)
## Get the Resource Type Object
resourceTypeObject = None
try:
resourceTypeObject = ResourceType.objects.get(name=rtName)
except ResourceType.DoesNotExist:
failureMessage = "Resource Type with Name " + rtName + " could not be found"
return HttpResponseRedirect(redirectURL+failureMessage)
oldRTInfo = getResourceTypeInfo(resourceTypeObject)
## if this is a form submission, then do the update or else display the form for update
if request.method == 'POST':
## Existing values
currName = resourceTypeObject.name
currResourceClass = resourceTypeObject.resource_class
currHepSpecs = resourceTypeObject.hepspecs
currMemory = resourceTypeObject.memory
currStorage = resourceTypeObject.storage
currBandwidth = resourceTypeObject.bandwidth
## Get the new values
newName = request.POST['name']
newResourceClass = request.POST['resource_class']
newHepSpecs = request.POST['hepspecs']
newMemory = request.POST['memory']
newStorage = request.POST['storage']
newBandwidth = request.POST['bandwidth']
comment = request.POST['comment']
try:
validate_name(newName)
validate_name(newResourceClass)
validate_float(newHepSpecs)
validate_float(newMemory)
validate_float(newStorage)
validate_float(newBandwidth)
validate_comment(comment)
except ValidationError as e:
message ='Edit Resource Type Form '+', '.join(e.messages)
html = "<html><HEAD><meta HTTP-EQUIV=\"REFRESH\" content=\"4; url=/cloudman/resourcetype/list/\"></HEAD><body> %s.</body></html>" % message
return HttpResponse(html)
## If resource parameters are changed, then validate them
errorMsg = checkAttributeValues(newHepSpecs, newMemory, newStorage, newBandwidth)
if (errorMsg != ''):
return HttpResponseRedirect(redirectURL + errorMsg)
## convert empty values for the following fields into None i.e NULL and if not empty, then round off to 3 decimals
if (newHepSpecs == ''):
newHepSpecs = None
else:
newHepSpecs = round((float(newHepSpecs)), 3)
if (newMemory == ''):
newMemory = None
else:
newMemory = round((float(newMemory)), 3)
if (newStorage == ''):
newStorage = None
else:
newStorage = round((float(newStorage)), 3)
if (newBandwidth == ''):
newBandwidth = None
else:
newBandwidth = round((float(newBandwidth)), 3)
## Check atleast one parameter is changed from its existing value
if ( (currName == newName) and (currResourceClass == newResourceClass) and (currHepSpecs== newHepSpecs) and (currMemory == newMemory) and (currStorage == newStorage) and (currBandwidth == newBandwidth) ):
message = 'No New Value provided for any field to perform Edit Operation. Hence Edit Resource Type ' + rtName + ' aborted'
return HttpResponseRedirect(redirectURL + message)
## If name is changed, then validate it and if success, then assign the new name to the object
if (currName != newName):
if (newName == ''):
errorMsg = 'Name field cannot be left blank. So Edit Resource Type operation stopped'
return HttpResponseRedirect(redirectURL + errorMsg)
nameExists = checkNameIgnoreCase(newName)
if nameExists:
msgAlreadyExists = 'Resource Type ' + newName + ' already exists. Hence Edit Resource Type Operation Stopped'
return HttpResponseRedirect(redirectURL + msgAlreadyExists);
resourceTypeObject.name = newName
## check the remaining parameters and if changed, then assign to the object
if (currResourceClass != newResourceClass):
resourceTypeObject.resource_class = newResourceClass
if (currHepSpecs != newHepSpecs):
resourceTypeObject.hepspecs = newHepSpecs
if (currMemory != newMemory):
resourceTypeObject.memory = newMemory
if (currStorage != newStorage):
resourceTypeObject.storage = newStorage
if (currBandwidth != newBandwidth):
resourceTypeObject.bandwidth = newBandwidth
## update the object and return the success message to the user
resourceTypeObject.save()
newRTInfo = getResourceTypeInfo(resourceTypeObject)
objectId = resourceTypeObject.id
if addUpdateLog(request,newName,objectId,comment,oldRTInfo,newRTInfo,'resourcetype',True):
message = 'Resource Type ' + rtName + ' Successfully Updated'
transaction.commit()
else:
transaction.rollback()
message = 'Error in Updating Resource Type ' + rtName
html = "<html><HEAD><meta HTTP-EQUIV=\"REFRESH\" content=\"4; url=/cloudman/resourcetype/list/\"></HEAD><body> %s.</body></html>" % message
return HttpResponse(html)
## if it is not form submission, then call the template to display the update form
else:
form = ResourceTypeForm()
#resourceTypeList=list(resourceTypeObject)
#json_object=simplejson.dumps(resourceTypeObject)
return render_to_response('resourcetype/update.html',locals(),context_instance=RequestContext(request))
def update(request):
regionName = request.REQUEST.get("name", "")
redirectURL = '/cloudman/message/?msg='
groups = request.META.get('ADFS_GROUP','')
groupsList = groups.split(';') ;
## Update is allowed if user has either cloudman resource manager privileges or
## belongs to the egroup selected as administrative e-group for this region
if not isUserAllowedToUpdateOrDeleteRegion(regionName,groupsList):
message = "You neither have membership of administrative group of region " + regionName + " nor possess Cloudman Resource Manager Privileges. Hence you are not authorized to Edit Region";
html = "<html><body> %s.</body></html>" % message
return HttpResponse(html)
## Get the region Object
regionObject = None
try:
regionObject = Region.objects.get(name=regionName)
except Region.DoesNotExist:
failureMessage = "Region with Name " + regionName + " could not be found"
return HttpResponseRedirect(redirectURL+failureMessage)
oldRegionInfo = getRegionInfo(regionObject)
## If the current request is due to form submission then do update
## or else return to template to display the update form
if request.method == 'POST':
## Existing values
currName = regionObject.name
currDescription = regionObject.description
currAdmin_group = regionObject.admin_group
## New Values
newName = request.POST['name']
newDescription = request.POST['description']
newAdmin_group = request.POST['admin_group']
comment = request.REQUEST.get("comment", "")
try:
validate_name(newName)
validate_descr(newDescription)
validate_name(newAdmin_group)
validate_comment(comment)
except ValidationError as e:
message ='Edit Region Form '+', '.join(e.messages)
html = "<html><HEAD><meta HTTP-EQUIV=\"REFRESH\" content=\"4; url=/cloudman/region/list/\"></HEAD><body> %s.</body></html>" % message
return HttpResponse(html)
## Check for atleast one field value change
if ( (currName == newName) and (currDescription == newDescription) and (currAdmin_group == newAdmin_group) ):
message = 'No New Value provided for any field to perform Edit Operation. Hence Edit Region ' + regionName + ' aborted'
return HttpResponseRedirect(redirectURL + message)
## Assign the new name to the region if it is changed
if (currName != newName):
if (newName == ''):
errorMsg = 'Region name field cannot be left blank. So Edit Region operation stopped'
return HttpResponseRedirect(redirectURL + errorMsg)
regionExists = checkNameIgnoreCase(newName)
if regionExists:
msgAlreadyExists = 'Region ' + newName + ' already exists. Hence Edit Region Operation Stopped'
return HttpResponseRedirect(redirectURL + msgAlreadyExists);
regionObject.name = newName
## Assign the new description if it is changed
if (currDescription != newDescription):
regionObject.description = newDescription
## If admin egroup is changed, then first check its existence in the local egroups table
## If not present, then check its existence in the external egroup database through ldap
## If checked using external database and found, then add the egroup to the local egroups table
## If not found both local and external, then return an error to the user
egroup = None
if (currAdmin_group != newAdmin_group):
if (newAdmin_group == ''):
errorMsg = 'Admin E-Group field cannot be left blank. So Edit Region operation stopped'
return HttpResponseRedirect(redirectURL + errorMsg)
try:
egroup = Egroups.objects.get(name=newAdmin_group)
except Egroups.DoesNotExist:
if not (checkEGroup(newAdmin_group)):
errorMessage = 'Selected Admin E-Group ' + newAdmin_group + ' does not exists'
return HttpResponseRedirect(redirectURL + errorMessage)
egroup = Egroups(name=newAdmin_group)
egroup.save()
regionObject.admin_group = egroup
## Save the new values and return success message to the user
regionObject.save()
newRegionInfo = getRegionInfo(regionObject)
objectId = regionObject.id
if addUpdateLog(request,newName,objectId,comment,oldRegionInfo,newRegionInfo,'region',True):
transaction.commit()
message = 'Region ' + regionName + ' Successfully Updated'
else:
message = 'Error in Updating Region ' + regionName
transaction.rollback()
html = "<html><HEAD><meta HTTP-EQUIV=\"REFRESH\" content=\"4; url=/cloudman/region/list/\"></HEAD><body> %s.</body></html>" % message
return HttpResponse(html)
else:
form=RegionForm();
return render_to_response('region/update.html',locals(),context_instance=RequestContext(request))
