public async Task<TextBlob> AddText(string text)
{
if (text == null)
return new TextBlob
{
Hash = null,
Text = null
};
if (text.Length > MaxTextSize)
text = text.Substring(0, MaxTextSize);
var hash = GetHash(text);
var blob = db.Texts.Find(hash);
if (blob != null)
return blob;
blob = new TextBlob
{
Hash = hash,
Text = text
};
db.Texts.AddOrUpdate(blob);
try
{
await db.SaveChangesAsync();
}
catch (DbEntityValidationException e)
{
throw new Exception(
string.Join("\r\n",
e.EntityValidationErrors.SelectMany(v => v.ValidationErrors).Select(err => err.PropertyName + " " + err.ErrorMessage)));
}
return blob;
}
private static string GetText(TextBlob blob)
{
return blob == null ? null : blob.Text;
}