/// <summary>
/// Checks the Employee foreign keys and performs an update on their values.
/// </summary>
/// <param name="_employee">The employee object we want to check</param>
/// <returns>Returns a boolean with the outcome of the update operation</returns>
public static bool checkRelations(Employee _employee)
{
using (var context = new synupEntities())
{
//Finds all the Teams the employee is in.
var query = from th in context.TeamHistories
where th.id_employee.Equals(_employee.nif)
select th;
//Deletes all the relations with teams the employee might have.
foreach (var member in query)
{
if (TeamHistoryConnection.deleteTeamHistory(member.id_employee, member.id_team) == null)
{
return(false);
}
}
//Finds all the tasks the employee has been given.
//If the task is not finished, it will be abandonned. If the task is ongoing, it will be abandonned and therefore given a finishdate.
var query2 = from th in context.TaskHistories
where th.id_employee.Equals(_employee.nif) && (th.isFinished == 0 || th.finishDate == null)
select th;
//For each TaskHistories register found.
foreach (var q in query2)
{
//It will find the tasks tied to it.
var qu = from task in context.Tasks
where task.code.Equals(q.id_task)
select task;
//Will update the state of the found tasks to ABANDONNED.
foreach (var ta in qu)
{
ta.state = (int)TaskState.ABANDONED;
TaskConnection.updateTask(ta);
}
//Will set the finish date to todays date.
q.finishDate = DateTime.Now;
}
//Returns whether the update has been done sucesfully or not.
return(commitChanges(context));
}
}
/// <summary>
/// CHECK THAT THE TEAM THAT IS DELETED WONT HAVE ANY FOREIGN KEYS THAT REFERENCE IT
/// </summary>
/// <param name="team"></param>
private static bool checkTeamMembers(Team team)
{
using (var _context = new synupEntities())
{
var query = from th in _context.TeamHistories
where th.id_team.Equals(team.code)
select th;
foreach (var member in query)
{
if (TeamHistoryConnection.deleteTeamHistory(member.id_employee, member.id_team) == null)
{
return(false);
}
}
var query2 = from task in _context.Tasks
where task.id_team.Equals(team.code)
select task;
foreach (var task in query2)
{
task.id_team = null;
task.state = (int)TaskState.UNSELECTED;
task.Team = null;
if (!TaskConnection.updateTask(task))
{
return(false);
}
}
/*team.Tasks = null;
* team.TeamHistories = null;*/
return(commitChanges(_context));
}
}