public async void TwitterText()
{
/// <summary>
/// Получение твитов из ленты пользователя (имя, тескт, никнейм) и сохранение в бд
/// </summary>
#region Tweets
var tweets = twitter.GetTweets();
var twitList = new List <string>();
for (int i = 0; i < tweets.Count; i++)
{
var name = tweets[i].User.Name;
var screenNameTweet = tweets[i].User.ScreenName;
var text = tweets[i].Text;
var dateTwit = tweets[i].CreatedDate;
if (!string.IsNullOrEmpty(screenNameTweet) && !screenNameTweet.StartsWith("@"))
{
screenNameTweet = "@" + screenNameTweet;
}
twitList.Add(tweets[i].User.Name + "\n" + screenNameTweet + "\n" + text);
using (var db = new TwitterAppContext()) // сохранение в бд
{
db.twitterTexts.Add(new TwitterTextDb {
Text = text, Date = dateTwit
});
db.users.Add(new UsersDb {
UserName = name, ScreenName = screenNameTweet
});
db.SaveChanges();
}
}
var twitTask = await Task.Run(() => twitList);
//var DataBasedTweets = dataBasedHelper.Reader();
//twitterText.ItemsSource = DataBasedTweets;
/// <summary>
/// вывод (из бд) последних 10 сохраненных твитов пользователя по дате и по Id
/// </summary>
using (var db = new TwitterAppContext())
{
List <string> listOut = new List <string>();
var tweetsOutputId = db.twitterTexts.Where(t => t.Id > 0).OrderByDescending(t => t.Id).Take(10); // выборка по Id
var tweetsOutputDate = db.twitterTexts.Where(t => t.Date >= new DateTime(2019, 12, 30)).OrderByDescending(t => t.Date).Take(10); //выборка по дате
foreach (var tweetText in tweetsOutputId)
{
listOut.Add(tweetText.Text + tweetText.UsersDb);
}
//var twitTaskDB = await Task.Run(() => listOut);
//twitterText.ItemsSource = twitTaskDB;
}
}
private void insertDB(List <TwitterStatus> Tweets)
{
string lat;
string lon;
string loc;
foreach (var tweet in Tweets)
{
try
{
lat = tweet.Location.Coordinates.Latitude.ToString();
lon = tweet.Location.Coordinates.Longitude.ToString();
}
catch
{
lat = "";
lon = "";
}
try
{
loc = tweet.Location.ToString();
}
catch
{
loc = "";
}
var user = TwitterDB.UsersTable.SingleOrDefault(u => u.ScreenName == tweet.User.ScreenName);
var twt = TwitterDB.TweetsTable.SingleOrDefault(t => t.TweetID == tweet.Id);
if (user == null)
{
var newUser = new UsersInfo
{
UsersInfoID = tweet.User.Id,
ScreenName = tweet.User.ScreenName,
ProfileImageUrl = tweet.User.ProfileImageUrl,
Name = tweet.User.Name,
TweetsCounter = 1,
Description = tweet.User.Description,
Location = tweet.User.Location,
};
var newTweet = new TweetsInfo
{
TweetID = tweet.Id,
TweetText = tweet.Text,
CreationDate = tweet.CreatedDate,
Longitude = lon,
Latitude = lat,
Location = loc,
Useritem = newUser
};
TwitterDB.UsersTable.Add(newUser);
TwitterDB.TweetsTable.Add(newTweet);
TwitterDB.SaveChanges();
}
else
{
if (twt == null)
{
var newTweet = new TweetsInfo
{
TweetID = tweet.Id,
TweetText = tweet.Text,
CreationDate = tweet.CreatedDate,
Longitude = lon,
Latitude = lat,
Location = loc,
Useritem = user
};
TwitterDB.TweetsTable.Add(newTweet);
user.TweetsCounter++;
TwitterDB.Entry(user).State = EntityState.Modified;
TwitterDB.SaveChanges();
}
}
}
}
