示例#1
0
        private Status CreateContact(WorkflowInstance workflowInstance, Item item)
        {
            DateTime   now           = DateTime.UtcNow;
            FieldValue contactsField = item.GetFieldValue(TargetFieldName, true);
            Guid       listID        = contactsField.Value != null ? new Guid(contactsField.Value) : Guid.NewGuid();

            // if the contacts sublist under the item doesn't exist, create it now
            if (contactsField.Value == null)
            {
                Item list = new Item()
                {
                    ID           = listID,
                    Name         = TargetFieldName,
                    IsList       = true,
                    FolderID     = item.FolderID,
                    ItemTypeID   = SystemItemTypes.Reference,
                    ParentID     = item.ID,
                    UserID       = item.UserID,
                    Created      = now,
                    LastModified = now,
                };
                contactsField.Value = listID.ToString();
                try
                {
                    UserContext.Items.Add(list);
                    UserContext.SaveChanges();
                }
                catch (Exception ex)
                {
                    TraceLog.TraceException("Creating Contact sublist failed", ex);
                    return(Status.Error);
                }
            }

            // get the subject out of the InstanceData bag
            Item contact = null;

            try
            {
                var contactString = GetInstanceData(workflowInstance, OutputParameterName);
                contact = JsonSerializer.Deserialize <Item>(contactString);
            }
            catch (Exception ex)
            {
                TraceLog.TraceException("Deserializing Contact failed", ex);
                return(Status.Error);
            }

            // update the contact if it already exists, otherwise add a new contact
            if (UserContext.Items.Any(c => c.ID == contact.ID))
            {
                try
                {
                    UserContext.SaveChanges();
                    Item dbContact = UserContext.Items.Include("FieldValues").Single(c => c.ID == contact.ID);
                    foreach (var fv in contact.FieldValues)
                    {
                        // add or update each of the fieldvalues
                        var dbfv = dbContact.GetFieldValue(fv.FieldName, true);
                        dbfv.Copy(fv);
                    }
                    dbContact.LastModified = now;
                    UserContext.SaveChanges();
                }
                catch (Exception ex)
                {
                    TraceLog.TraceException("Update Contact failed", ex);
                    return(Status.Error);
                }
            }
            else
            {
                try
                {
                    Folder folder = FindDefaultFolder(contact.UserID, contact.ItemTypeID);
                    if (folder != null)
                    {
                        contact.FolderID = folder.ID;
                    }
                    UserContext.Items.Add(contact);
                    UserContext.SaveChanges();
                }
                catch (Exception ex)
                {
                    TraceLog.TraceException("CreateContact: creating contact failed", ex);
                    return(Status.Error);
                }

                User user = UserContext.GetUser(item.UserID);
                if (user == null)
                {
                    TraceLog.TraceError("Could not find the user associated with Item " + item.Name);
                    return(Status.Error);
                }

                // create an operation corresponding to the new contact creation
                var operation = UserContext.CreateOperation(user, "POST", (int?)System.Net.HttpStatusCode.Created, contact, null);
                if (operation == null)
                {
                    TraceLog.TraceError("Failed to create operation");
                    return(Status.Error);
                }

                // kick off the New Contact workflow
                WorkflowHost.InvokeWorkflowForOperation(UserContext, SuggestionsContext, operation);
            }

            // add a contact reference to the contact list
            Guid refID      = Guid.NewGuid();
            var  contactRef = new Item()
            {
                ID           = refID,
                Name         = contact.Name,
                ItemTypeID   = SystemItemTypes.Reference,
                FolderID     = item.FolderID,
                ParentID     = listID,
                UserID       = contact.UserID,
                Created      = now,
                LastModified = now,
                FieldValues  = new List <FieldValue>()
                {
                    new FieldValue()
                    {
                        FieldName = FieldNames.EntityRef, ItemID = refID, Value = contact.ID.ToString()
                    },
                    new FieldValue()
                    {
                        FieldName = FieldNames.EntityType, ItemID = refID, Value = EntityTypes.Item
                    }
                }
            };

            try
            {
                UserContext.Items.Add(contactRef);
                UserContext.SaveChanges();
            }
            catch (Exception ex)
            {
                TraceLog.TraceException("Creating Contact reference failed", ex);
                return(Status.Error);
            }

            // add a Suggestion with a RefreshEntity FieldName to the list, to tell the UI that the
            // workflow changed the Item
            SignalEntityRefresh(workflowInstance, item);

            return(Status.Complete);
        }