public int RemoveTweetFromCollection(string collectionId, string tweetId)
{
if (collectionId.IsNullOrWhitespace())
{
throw new InvalidCollectionIdException(nameof(collectionId));
}
if (tweetId.IsNullOrWhitespace())
{
throw new InvalidTweetIdException(nameof(tweetId));
}
var collection = GetCollectionById(collectionId);
var tweetToDelete = GetTweetById(tweetId);
CollectionTweet collectionTweetToRemove = new CollectionTweet()
{
CollectionId = collection.Id,
Collection = collection,
Tweet = tweetToDelete,
TweetId = tweetToDelete.Id
};
collectionTweets.Delete(collectionTweetToRemove);
return(this.saver.SaveChanges());
}
public int AddTweetToCollection(string collectionId, string tweetId)
{
if (collectionId.IsNullOrWhitespace())
{
throw new InvalidCollectionIdException(nameof(collectionId));
}
if (tweetId.IsNullOrWhitespace())
{
throw new InvalidTweetIdException(nameof(tweetId));
}
var collection = GetCollectionById(collectionId);
var tweetToAdd = GetTweetById(tweetId);
CollectionTweet collectionTweetToAdd = new CollectionTweet()
{
CollectionId = collection.Id,
Collection = collection,
Tweet = tweetToAdd,
TweetId = tweetToAdd.Id
};
collectionTweets.Add(collectionTweetToAdd);
return(this.saver.SaveChanges());
}
