def checkCorrectness(self):
super(ChangeRecordTaskDependencies, self).checkCorrectness()
masterId = int(self.values[0]['value'])
slaveId = int(self.values[1]['value'])
project1 = appInst.getProjectByTask(masterId)
project2 = appInst.getProjectByTask(slaveId)
if project1.id != project2.id:
raise DBException('Chosen tasks must belong to the same project')
if masterId == slaveId:
raise DBException('Chosen tasks must be different')
graph, maxTaskId = appInst.getTasksDependencyGraph(slaveId)
if graph:
graph[slaveId].append(masterId)
vis = [False for i in range(maxTaskId + 1)]
def dfs(v):
if vis[v]:
return True
vis[v] = True
for i in graph[v]:
if dfs(i):
return True
vis[v] = False
return False
if dfs(slaveId):
raise DBException('Cycle detected')
self.change()
def disableButtons(self):
canAdd = appInst.isAdmin() and appInst.getMaxTasksNumOnProjects()> 1 or\
appInst.isManager() and appInst.getMaxTasksNumOnProjectsWithManager() > 1
self.ui.addRecordButton.setDisabled(not canAdd)
canChange = appInst.isAdmin() and len(self.ui.tableWidget.selectedItems())
if len(self.ui.tableWidget.selectedItems()):
row = self.ui.tableWidget.currentRow()
taskDependency = appInst.getRecord('tasksDependencies', self.primaryKeys[row])
project1 = appInst.getProjectByTask(taskDependency.masterId)
project2 = appInst.getProjectByTask(taskDependency.slaveId)
canChange = canChange or (appInst.isManagerOnProject(project1.id) and\
project1.id == project2.id)
self.ui.editRecordButton.setDisabled(not canChange)
self.ui.deleteRecordButton.setDisabled(not canChange)