/// <summary>
/// Adds a new child reference.
/// <para>WARNING: Make sure to save the parent and child Entities before calling this method.</para>
/// </summary>
/// <param name="child">The child IEntity to add.</param>
/// <param name="session">An optional session if using within a transaction</param>
public async Task AddAsync(TChild child, IClientSessionHandle session = null)
{
parent.ThrowIfUnsaved();
child.ThrowIfUnsaved();
JoinRecord join = null;
if (inverse)
{
join = await(session == null ?
JoinCollection.Find(r => r.ChildID == parent.ID && r.ParentID == child.ID).SingleOrDefaultAsync() :
JoinCollection.Find(session, r => r.ChildID == parent.ID && r.ParentID == child.ID).SingleOrDefaultAsync());
if (join == null)
{
join = new JoinRecord()
{
ID = ObjectId.GenerateNewId().ToString(),
ModifiedOn = DateTime.UtcNow,
ParentID = child.ID,
ChildID = parent.ID,
};
}
else
{
return;
}
}
else
{
join = await(session == null ?
JoinCollection.Find(r => r.ParentID == parent.ID && r.ChildID == child.ID).SingleOrDefaultAsync() :
JoinCollection.Find(session, r => r.ParentID == parent.ID && r.ChildID == child.ID).SingleOrDefaultAsync());
if (join == null)
{
join = new JoinRecord()
{
ID = ObjectId.GenerateNewId().ToString(),
ModifiedOn = DateTime.UtcNow,
ParentID = parent.ID,
ChildID = child.ID,
};
}
else
{
return;
}
}
await(session == null
? JoinCollection.InsertOneAsync(join)
: JoinCollection.InsertOneAsync(session, join));
}
/// <summary>
/// Adds a new child reference.
/// <para>WARNING: Make sure to save the parent and child Entities before calling this method.</para>
/// </summary>
/// <param name="child">The child IEntity to add.</param>
/// <param name="session">An optional session if using within a transaction</param>
public async Task AddAsync(TChild child, IClientSessionHandle session = null)
{
parent.ThrowIfUnsaved();
child.ThrowIfUnsaved();
JoinRecord join = null;
if (inverse)
{
join = await JoinQueryable()
.SingleOrDefaultAsync(r =>
r.ChildID.Equals(parent.ID) &&
r.ParentID.Equals(child.ID));
if (join == null)
{
join = new JoinRecord()
{
ID = ObjectId.GenerateNewId().ToString(),
ModifiedOn = DateTime.UtcNow,
ParentID = child.ID,
ChildID = parent.ID,
};
}
}
else
{
join = await JoinQueryable()
.SingleOrDefaultAsync(r =>
r.ParentID.Equals(parent.ID) &&
r.ChildID.Equals(child.ID));
if (join == null)
{
join = new JoinRecord()
{
ID = ObjectId.GenerateNewId().ToString(),
ModifiedOn = DateTime.UtcNow,
ParentID = parent.ID,
ChildID = child.ID,
};
}
}
await(session == null
? JoinCollection.ReplaceOneAsync(x => x.ID.Equals(join.ID), join, new UpdateOptions()
{
IsUpsert = true
})
: JoinCollection.ReplaceOneAsync(session, x => x.ID.Equals(join.ID), join, new UpdateOptions()
{
IsUpsert = true
}));
}
