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Nullable annotation added

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This commit is contained in:
Miskolczi Richárd
2023-12-13 22:04:43 +01:00
parent 2b06c12c06
commit cce3ef9876
2 changed files with 47 additions and 16 deletions
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47
WD7UVN_HFT_2023241.Logic/LogicServices.cs
View File

@@ -26,7 +26,7 @@ namespace WD7UVN_HFT_2023241.Logic
this.CRUDOperations = CRUDOperations; this.CRUDOperations = CRUDOperations;
} }
public IQueryable<Employee> WhoMaintainsService(int serviceId) public IQueryable<Employee>? WhoMaintainsService(int serviceId)
{ {
IQueryable<Employee> query = IQueryable<Employee> query =
from employee in CRUDOperations.ReadAllEmployees() from employee in CRUDOperations.ReadAllEmployees()
@@ -34,10 +34,15 @@ namespace WD7UVN_HFT_2023241.Logic
where service.ID == serviceId where service.ID == serviceId
select employee; select employee;
if (query.ToList().Count == 0)
{
throw new NullReferenceException("No such database entry");
}
return query; return query;
} }
public Employee WhoIsResponsibleForService(int serviceId) public Employee? WhoIsResponsibleForService(int serviceId)
{ {
var query = var query =
from service in CRUDOperations.ReadAllServices() from service in CRUDOperations.ReadAllServices()
@@ -46,28 +51,54 @@ namespace WD7UVN_HFT_2023241.Logic
where service.ID == serviceId where service.ID == serviceId
select employee; select employee;
if (query.ToList().Count == 0)
{
throw new NullReferenceException("No such database entry");
}
return query.FirstOrDefault(); return query.FirstOrDefault();
} }
public IQueryable<Employee> WhoWorksInMaintainerTeam(int maintainerTeamId) public IQueryable<Employee>? WhoWorksInMaintainerTeam(int maintainerTeamId)
{ {
return CRUDOperations var res = CRUDOperations
.ReadAllEmployees() .ReadAllEmployees()
.Where(e => e.MAINTAINER_ID == maintainerTeamId); .Where(e => e.MAINTAINER_ID == maintainerTeamId);
if (res.ToList().Count == 0)
{
throw new NullReferenceException("No such database entry");
}
return res;
} }
public IQueryable<Employee> GetSubordinates(int managerId) public IQueryable<Employee>? GetSubordinates(int managerId)
{ {
return CRUDOperations var res = CRUDOperations
.ReadAllEmployees() .ReadAllEmployees()
.Where(e => e.MANAGER_ID == managerId); .Where(e => e.MANAGER_ID == managerId);
if (res.ToList().Count == 0)
{
throw new NullReferenceException("No such database entry");
}
return res;
} }
public IQueryable<Customer> WhoUsesService(int serviceId) public IQueryable<Customer>? WhoUsesService(int serviceId)
{ {
return CRUDOperations var res = CRUDOperations
.ReadAllCustomers() .ReadAllCustomers()
.Where(c => c.SERVICE_ID == serviceId); .Where(c => c.SERVICE_ID == serviceId);
if (res.ToList().Count == 0)
{
throw new NullReferenceException("No such database entry");
}
return res;
} }
} }
} }

16
WD7UVN_HFT_2023241.Repository/CRUD.cs
View File

@@ -52,12 +52,12 @@ namespace WD7UVN_HFT_2023241.Repository
Database.Context.SaveChanges(); Database.Context.SaveChanges();
} }
public Employee ReadEmployee(int employeeId) public Employee? ReadEmployee(int employeeId)
{ {
return Database.Context.Employees.Find(employeeId); return Database.Context.Employees.Find(employeeId);
} }
public IQueryable<Employee> ReadAllEmployees() public IQueryable<Employee>? ReadAllEmployees()
{ {
return Database.Context.Employees.AsQueryable(); return Database.Context.Employees.AsQueryable();
} }
@@ -88,12 +88,12 @@ namespace WD7UVN_HFT_2023241.Repository
Database.Context.SaveChanges(); Database.Context.SaveChanges();
} }
public Service ReadService(int serviceId) public Service? ReadService(int serviceId)
{ {
return Database.Context.Services.Find(serviceId); return Database.Context.Services.Find(serviceId);
} }
public IQueryable<Service> ReadAllServices() public IQueryable<Service>? ReadAllServices()
{ {
return Database.Context.Services.AsQueryable(); return Database.Context.Services.AsQueryable();
} }
@@ -124,12 +124,12 @@ namespace WD7UVN_HFT_2023241.Repository
Database.Context.SaveChanges(); Database.Context.SaveChanges();
} }
public MaintainerTeam ReadMaintainerTeam(int maintainerTeamId) public MaintainerTeam? ReadMaintainerTeam(int maintainerTeamId)
{ {
return Database.Context.Maintainers.Find(maintainerTeamId); return Database.Context.Maintainers.Find(maintainerTeamId);
} }
public IQueryable<MaintainerTeam> ReadAllMaintainerTeams() public IQueryable<MaintainerTeam>? ReadAllMaintainerTeams()
{ {
return Database.Context.Maintainers.AsQueryable(); return Database.Context.Maintainers.AsQueryable();
} }
@@ -160,12 +160,12 @@ namespace WD7UVN_HFT_2023241.Repository
Database.Context.SaveChanges(); Database.Context.SaveChanges();
} }
public Customer ReadCustomer(int customerId) public Customer? ReadCustomer(int customerId)
{ {
return Database.Context.Customers.Find(customerId); return Database.Context.Customers.Find(customerId);
} }
public IQueryable<Customer> ReadAllCustomers() public IQueryable<Customer>? ReadAllCustomers()
{ {
return Database.Context.Customers.AsQueryable(); return Database.Context.Customers.AsQueryable();
} }