public Issue GetIssue(int id)
{
var issue = Issues.SingleOrDefault(i => i.Id == id);
if (issue == default(Issue))
{
throw new Exception("Issue id does not correspond to a valid entry");
}
return(issue);
}
public void AddComment(int id, string text)
{
var issue = Issues.SingleOrDefault(i => i.Id == id);
if (issue == default(Issue))
{
throw new Exception("Issue id does not correspond to a valid entry");
}
issue.Comments.Add(new Comment {
Text = text
});
SaveChanges();
}
public void SetState(int id, State state)
{
if (!Enum.IsDefined(typeof(State), state))
{
throw new Exception("State value does not correspond to a valid state");
}
var issue = Issues.SingleOrDefault(i => i.Id == id);
if (issue == default(Issue))
{
throw new Exception("Issue id does not correspond to a valid entry");
}
issue.State = state;
SaveChanges();
}
public void AddAssociation(int id, int assocId)
{
var parent = Issues.SingleOrDefault(i => i.Id == id);
var child = Issues.SingleOrDefault(i => i.Id == assocId);
if (parent == default(Issue) || child == default(Issue))
{
throw new Exception("Issue id does not correspond to a valid entry");
}
if (parent == child)
{
throw new Exception("Attempting to create a circular association");
}
if (parent.AssocIssues.Contains(child))
{
throw new Exception("Attempting to add an existing association");
}
parent.AssocIssues.Add(child);
SaveChanges();
}