public async Task <IActionResult> CreateChannel(CreateChannelViewModel model)
{
//check if the channel name is already taken
var workspace = await _context.Workspace
.Where(ws => ws.Name == model.WorkspaceName).SingleOrDefaultAsync();
List <Channel> workspaceChannels = await _context.Channel
.Where(ch => ch.Workspace.ID == workspace.ID).ToListAsync();
foreach (Channel ch in workspaceChannels)
{
if (ch.Name.Equals(model.Name))
{
return(Json(new { result = "That name is already taken." }));
}
}
//create channel, add current user to it and redirect to the new channel
var channel = new Channel {
Name = model.Name, General = false, OwnerID = model.OwnerID, Type = model.Type, Workspace = workspace
};
_context.Add(channel);
var channelMembership = new ChannelMembership {
JoinDate = DateTime.Now, Channel = channel, ChannelID = channel.ID, ApplicationUserID = model.OwnerID
};
_context.Add(channelMembership);
await _context.SaveChangesAsync();
return(Json(new { result = "Redirect", url = Url.Action("Messages/" + model.WorkspaceName + "/" + channel.Name, "Workspaces") }));
}
public async Task <IActionResult> InviteUser(ChannelInviteViewModel model)
{
//check if the user is already a member of the channel
var channel = await _context.Channel.
Where(ch => ch.Name == model.ChannelName && ch.Workspace.Name == model.WorkspaceName).SingleOrDefaultAsync();
var channelMembership = await _context.ChannelMembership.
Where(chm => chm.ChannelID == channel.ID && chm.ApplicationUser.UserName == model.InvitedUserName).SingleOrDefaultAsync();
if (channelMembership != null)
{
return(Json(new { result = "That user is already a member of this channel." }));
}
//check if the user is a member of the workspace
var workspaceMembership = await _context.WorkspaceMembership.
Where(wm => wm.Workspace.Name == model.WorkspaceName && wm.ApplicationUser.UserName == model.InvitedUserName).SingleOrDefaultAsync();
if (workspaceMembership == null)
{
return(Json(new { result = "That user isn't a member of this workspace." }));
}
//add invited user to the channel
var users = from u in _context.Users
select u;
var user = (ApplicationUser)users.Where(u => u.UserName.Equals(model.InvitedUserName)).First();
channelMembership = new ChannelMembership {
JoinDate = DateTime.Now, Channel = channel, ChannelID = channel.ID, ApplicationUserID = user.Id
};
_context.Add(channelMembership);
await _context.SaveChangesAsync();
return(Json(new { result = "Redirect", url = Url.Action("Messages/" + model.WorkspaceName + "/" + channel.Name, "Workspaces") }));
}
