public async Task <FlowResult <FlowState> > CreateFlowStateAsync(InitFlowStateModel model)
{
var set = StateManager.GetFlowSet <FlowState>();
var typeSet = StateManager.GetFlowSet <FlowType>();
var type = await typeSet.GetByIdAsync(model.TypeId);
if (type == null)
{
return(FlowResult <FlowState>
.Failed(new FlowError(FlowErrors.ItemNotFound, nameof(type))));
}
var entity = FlowEntity.InitializeType(new FlowState()
{
Name = model.Name,
Title = model.Title,
StateType = (byte)model.StateType,
TypeId = type.Id,
Tag = model.Tag,
});
var result = await set.CreateAsync(entity);
return(FlowResult <FlowState> .Successful(result));
}
public async Task <FlowResult <FlowTransition> > CreateFlowTransitionAsync(InitFlowTransitionModel model)
{
var set = StateManager.GetFlowSet <FlowTransition>();
var stateSet = StateManager.GetFlowSet <FlowState>();
var source = await stateSet.GetByIdAsync(model.SourceId);
if (source == null)
{
return(FlowResult <FlowTransition>
.Failed(new FlowError(FlowErrors.ItemNotFound, nameof(source))));
}
var destination = await stateSet.GetByIdAsync(model.DestinationId);
if (destination == null)
{
return(FlowResult <FlowTransition>
.Failed(new FlowError(FlowErrors.ItemNotFound, nameof(destination))));
}
var entity = FlowEntity.InitializeType(new FlowTransition()
{
Name = model.Name,
Title = model.Title,
SourceId = source.Id,
DestinationId = destination.Id,
TransitionType = model.TransitionType,
TypeId = source.TypeId,
});
var result = await set.CreateAsync(entity);
return(FlowResult <FlowTransition> .Successful(result));
}
public async Task <FlowResult <FlowInstance> > CreateFlowInstanceAsync(InitFlowModel model)
{
var set = StateManager.GetFlowSet <FlowInstance>();
var typeSet = StateManager.GetFlowSet <FlowType>();
var type = await typeSet.GetByIdAsync(model.TypeId);
if (type == null)
{
return(FlowResult <FlowInstance>
.Failed(new FlowError(FlowErrors.ItemNotFound, nameof(type))));
}
var entity = FlowEntity.InitializeType(new FlowInstance()
{
Title = model.Title,
Payload = model.Payload,
TypeId = type.Id,
InitializerId = model.InitializerId,
AccessPhrase = model.AccessPhrase,
});
var result = await set.CreateAsync(entity);
return(FlowResult <FlowInstance> .Successful(result));
}
public async Task <FlowResult <FlowType> > CreateFlowTypeAsync(InitFlowTypeModel initModel)
{
var set = StateManager.GetFlowSet <FlowType>();
var entity = FlowEntity.InitializeType(new FlowType()
{
EntityType = initModel.EntityType.FullName,
EntityPayloadType = initModel.EntityPayloadType.FullName,
Name = initModel.Name,
});
var resultTask = await set.CreateAsync(entity);
return(FlowResult <FlowType> .Successful(resultTask));
}
public async Task <FlowResult <IEnumerable <FlowTransition> > > GetSourceTransitionsAsync(Guid sourceId)
{
//Get current instance
if (sourceId.GuidIsEmpty())
{
throw new ArgumentNullException(nameof(sourceId));
}
var stateSet = StateManager.GetFlowSet <FlowState>();
var targetSource = await stateSet
.FirstOrDefaultAsync(x => x.Id.Equals(sourceId));
if (targetSource == null)
{
return(FlowResult <IEnumerable <FlowTransition> >
.Failed(new FlowError(FlowErrors.ItemNotFound, args : nameof(FlowState))));
}
var transitionSet = StateManager.GetFlowSet <FlowTransition>();
var typeSet = StateManager.GetFlowSet <FlowType>();
var reasonSet = StateManager.GetFlowSet <FlowTransitionReason>();
var query = from transition in transitionSet.GetAll()
join type in typeSet.GetAll() on transition.TypeId equals type.Id
join source in stateSet.GetAll() on transition.SourceId equals source.Id
join destination in stateSet.GetAll() on transition.DestinationId equals destination.Id
where transition.SourceId == sourceId
select new FlowTransition()
{
Id = transition.Id,
Type = type,
CreatedAt = transition.CreatedAt,
ModifiedAt = transition.ModifiedAt,
Deleted = transition.Deleted,
TypeId = transition.TypeId,
Name = transition.Name,
SourceId = transition.SourceId,
DestinationId = transition.DestinationId,
Destination = destination,
IsAutomatic = transition.IsAutomatic,
Source = source,
Title = transition.Title,
TransitionType = transition.TransitionType
};
var transitions = await transitionSet.ToListAsync(query);
return(FlowResult <IEnumerable <FlowTransition> > .Successful(transitions));
}
public async Task <FlowResult <FlowStep> > CreateFlowStepAsync(MoveModel model)
{
var set = StateManager.GetFlowSet <FlowStep>();
var instanceSet = StateManager.GetFlowSet <FlowInstance>();
var transitionSet = StateManager.GetFlowSet <FlowTransition>();
var stateSet = StateManager.GetFlowSet <FlowState>();
var instance = await instanceSet.GetByIdAsync(model.InstanceId);
if (instance == null)
{
return(FlowResult <FlowStep>
.Failed(new FlowError(FlowErrors.ItemNotFound, nameof(instance))));
}
var transition = await transitionSet.GetByIdAsync(model.TransitionId);
if (transition == null)
{
return(FlowResult <FlowStep>
.Failed(new FlowError(FlowErrors.ItemNotFound, nameof(transition))));
}
var state = await stateSet.GetByIdAsync(transition.DestinationId);
if (state == null)
{
return(FlowResult <FlowStep>
.Failed(new FlowError(FlowErrors.ItemNotFound, nameof(state))));
}
var entity = FlowEntity.InitializeType(new FlowStep()
{
InstanceId = instance.Id,
IsCurrent = true,
TransitionId = transition.Id,
Payload = model.Payload,
Comment = model.Comment,
CurrentStateName = state.Name,
CurrentStateTitle = state.Title,
CurrentStateType = state.StateType,
});
var result = await set.CreateAsync(entity);
return(FlowResult <FlowStep> .Successful(result));
}
public async Task <FlowResult <IEnumerable <FlowTransition> > > GetInstanceTransitionsAsync(Guid instanceId)
{
//Get current instance
if (instanceId.GuidIsEmpty())
{
throw new ArgumentNullException(nameof(instanceId));
}
var instanceSet = StateManager.GetFlowSet <FlowInstance>();
var targetInstance = await instanceSet.FirstOrDefaultAsync(x => x.Id.Equals(instanceId));
if (targetInstance == null)
{
return(FlowResult <IEnumerable <FlowTransition> >
.Failed(new FlowError(FlowErrors.ItemNotFound, args : nameof(FlowInstance))));
}
//Get current instance state
var stepSet = StateManager.GetFlowSet <FlowStep>();
var currentStep = await stepSet
.FirstOrDefaultAsync(x => x.InstanceId.Equals(targetInstance.Id) && x.IsCurrent);
if (currentStep == null)
{
return(FlowResult <IEnumerable <FlowTransition> >
.Failed(new FlowError(FlowErrors.InstanceHasnostep)));
}
//Get current step transition
var transitionSet = StateManager.GetFlowSet <FlowTransition>();
var currentTransition = await transitionSet
.FirstOrDefaultAsync(x => x.Id.Equals(currentStep.TransitionId));
//Get current state
var stateSet = StateManager.GetFlowSet <FlowState>();
var currentState = await stateSet.FirstOrDefaultAsync(x => x.Id.Equals(currentTransition.DestinationId));
//Get current state transitions
var transitions = await transitionSet.GetAllAsync(x => x.SourceId.Equals(currentState.Id));
return(FlowResult <IEnumerable <FlowTransition> > .Successful(transitions));
}
public async Task <FlowResult <FlowStep> > DisableCurrentStepAsync(Guid instanceId)
{
var set = StateManager.GetFlowSet <FlowStep>();
var instanceSet = StateManager.GetFlowSet <FlowInstance>();
var instance = await instanceSet.GetByIdAsync(instanceId);
if (instance == null)
{
return(FlowResult <FlowStep>
.Failed(new FlowError(FlowErrors.ItemNotFound, nameof(instance))));
}
var currentStep = await set.FirstOrDefaultAsync(x => x.InstanceId.Equals(instanceId) && x.IsCurrent);
currentStep.IsCurrent = false;
var updateResult = await set.UpdateAsync(currentStep);
return(FlowResult <FlowStep> .Successful(updateResult));
}
public async Task <FlowResult <IEnumerable <FlowStep> > > GetInstanceStepsAsync(Guid instanceId)
{
//Get current instance
if (instanceId.GuidIsEmpty())
{
throw new ArgumentNullException(nameof(instanceId));
}
var instanceSet = StateManager.GetFlowSet <FlowInstance>();
var targetInstance = await instanceSet.FirstOrDefaultAsync(x => x.Id.Equals(instanceId));
if (targetInstance == null)
{
return(FlowResult <IEnumerable <FlowStep> >
.Failed(new FlowError(FlowErrors.ItemNotFound, args : nameof(FlowInstance))));
}
//Get all steps
var stepSet = StateManager.GetFlowSet <FlowStep>();
var steps = await stepSet.GetAllAsync(x => x.InstanceId.Equals(targetInstance.Id));
return(FlowResult <IEnumerable <FlowStep> > .Successful(steps));
}