protected void btnImport_Click(object sender, EventArgs e)
{
var errors = new List <string>();
txtInfo.Text = "";
try
{
if (!Uri.IsWellFormedUriString(tbxUrl.Text, UriKind.Absolute))
{
errors.Add("Mapping File Url is not a valid Url!");
}
if (!Uri.IsWellFormedUriString(tbxRadioLogosBaseUrl.Text, UriKind.Absolute))
{
errors.Add("Radio Logos Base Url is not a valid Url!");
}
if (!Uri.IsWellFormedUriString(tbxTVLogosBaseUrl.Text, UriKind.Absolute))
{
errors.Add("TV Logos Base Url is not a valid Url!");
}
if (!tbxUrl.Text.ToLower().EndsWith(".xml"))
{
errors.Add("Mapping File Url must point to a xml file!");
}
var mappings = new XmlDocument();
mappings.Load(tbxUrl.Text);
var xmlTvChannels = new List <Tuple <Dictionary <string, HashSet <string> >, string, EF.Logo> >();
var xmlRadioChannels = new List <Tuple <Dictionary <string, HashSet <string> >, string, EF.Logo> >();
using (var ctx = new EF.RepositoryContext("LogoDB"))
{
var tvChannels = mappings.SelectSingleNode("Mappings/TV");
foreach (XmlElement tvChannel in tvChannels.SelectNodes("Channel"))
{
var xmlTvChannel = GetChannel(tvChannel, 0, ctx, ref errors);
if (xmlTvChannel != null)
{
xmlTvChannels.Add(xmlTvChannel);
}
}
var radioChannels = mappings.SelectSingleNode("Mappings/Radio");
foreach (XmlElement radioChannel in radioChannels.SelectNodes("Channel"))
{
var xmlRadioChannel = GetChannel(radioChannel, 1, ctx, ref errors);
if (xmlRadioChannel != null)
{
xmlRadioChannels.Add(xmlRadioChannel);
}
}
EF.User currentUser = null;
var membership = System.Web.Security.Membership.GetUser();
if (membership != null)
{
currentUser = ctx.Users.FirstOrDefault(u => u.Id == (Guid)membership.ProviderUserKey);
}
var repo = ctx.Repositorys.FirstOrDefault();
var allProviders = ctx.Providers.ToDictionary(p => p.Name, p => p);
foreach (var importChannel in xmlTvChannels)
{
CreateDbChannel(importChannel, ChannelType.Tv, ctx, repo, currentUser, allProviders);
}
foreach (var importChannel in xmlRadioChannels)
{
CreateDbChannel(importChannel, ChannelType.Radio, ctx, repo, currentUser, allProviders);
}
ctx.ChangeTracker.DetectChanges();
ctx.SaveChanges();
}
txtInfo.Text = string.Format("Imported {0} TV and {1} Radio Channels.", xmlTvChannels.Count, xmlRadioChannels.Count);
}
catch (Exception ex)
{
errors.Add(ex.Message);
}
listErrors.DataSource = errors;
listErrors.DataBind();
listErrors.Visible = errors.Count > 0;
}
void CreateDbChannel(Tuple <Dictionary <string, HashSet <string> >, string, EF.Logo> importChannel, ChannelType channelType, EF.RepositoryContext ctx, EF.Repository repo, EF.User user, Dictionary <string, EF.Provider> knownProviders)
{
var channel = ctx.Channels.Create();
channel.Id = Guid.NewGuid();
channel.Type = channelType;
channel.Name = importChannel.Item1.First().Key;
channel.RegionCode = ddlChannelRegion.SelectedValue;
repo.Channels.Add(channel);
var logo = importChannel.Item3;
logo.Creator = user;
repo.Logos.Add(logo);
channel.Logos.Add(logo);
logo.Channels.Add(channel);
foreach (var newAlias in importChannel.Item1)
{
var alias = ctx.Aliases.Create();
alias.Created = DateTime.Now;
alias.Id = Guid.NewGuid();
alias.Name = newAlias.Key;
channel.Aliases.Add(alias);
foreach (var aProvider in newAlias.Value)
{
EF.Provider provider = null;
if (!knownProviders.TryGetValue(aProvider, out provider))
{
provider = ctx.Providers.Create();
provider.Id = Guid.NewGuid();
provider.Name = aProvider;
repo.Providers.Add(provider);
knownProviders.Add(aProvider, provider);
}
alias.Providers.Add(provider);
provider.Aliases.Add(alias);
}
}
}
