// Update PUT
public List<Employee> Put(Employee obj)
{
EmployeeEntities empObj = new EmployeeEntities();
if (obj!=null && obj.EmployeeID!=0)
{
// Select the record ( LINQ )
Employee empUpdate = (from temp in empObj.Employees
where temp.EmployeeID == obj.EmployeeID
select temp).ToList<Employee>().SingleOrDefault<Employee>();
//Updates the details as per the details from the front page
if(empUpdate!=null)
{
empUpdate.Name = obj.Name;
empUpdate.Age = obj.Age;
empUpdate.Address = obj.Address;
empUpdate.Active = obj.Active;
empUpdate.Employment = obj.Employment;
empObj.SaveChanges();
}
}
List<Employee> empList = empObj.Employees.ToList<Employee>();
return empList;
}
// Select
public List<Employee> Get() // All the record
{
// Read the query string
var allUrlKeyValues = ControllerContext.Request.GetQueryNameValuePairs();
string EmployeeID = allUrlKeyValues.
SingleOrDefault(x => x.Key == "EmployeeID").Value;
string EmployeeName = allUrlKeyValues.
SingleOrDefault(x => x.Key == "EmployeeName").Value;
EmployeeEntities empObj = new EmployeeEntities();
List<Employee> empList = new List<Employee>();
if (EmployeeName != null)
{
empList = (from t in empObj.Employees
where t.Name == EmployeeName
select t).ToList<Employee>();
}
else if (EmployeeID!=null)
{
int empID = Convert.ToInt32(EmployeeID);
empList = (from t in empObj.Employees
where t.EmployeeID == empID
select t).ToList<Employee>();
}
else
{
empList = empObj.Employees.ToList<Employee>();
}
return empList;
}
// Insert
public List<Employee> Post(Employee obj)
{
EmployeeEntities empObj = new EmployeeEntities();
if (ModelState.IsValid)
{
// insert the customer object to database
//Gets the max value of emp id
int maxEmpId = empObj.Employees.Max<Employee>(x => x.EmployeeID);
//makes sure that the emp id is unique and in order
obj.EmployeeID = maxEmpId + 1;
empObj.Employees.Add(obj); // Still in memory, not committed
empObj.SaveChanges(); //Physical Commit
}
List<Employee> employeeList = empObj.Employees.ToList<Employee>(); //Gets the employee list from the employee table
return employeeList; //Returns the employee list
}
// Delete Delete
public List<Employee> Delete(Employee obj)
{
EmployeeEntities empObj = new EmployeeEntities();
if (obj!=null && obj.EmployeeID!=0)
{
// Delete
Employee empDelete = (from temp in empObj. Employees
where temp.EmployeeID == obj.EmployeeID
select temp).ToList<Employee>()[0];
empObj.Employees.Remove(empDelete); // changes still inside memory
empObj.SaveChanges();// Physical commit
}
List<Employee> empList = empObj.Employees.ToList<Employee>();
return empList;
}
