public void AddQuestion(Question question, IEnumerable <string> tags)
{
using var ctx = new QAContext(_connectionString);
ctx.Questions.Add(question);
ctx.SaveChanges();
foreach (string tag in tags)
{
Tag t = GetTag(tag);
int tagId;
if (t == null)
{
tagId = AddTag(tag);
}
else
{
tagId = t.Id;
}
ctx.QuestionsTags.Add(new QuestionsTags
{
QuestionId = question.Id,
TagId = tagId
});
}
ctx.SaveChanges();
}
public List <Question> GetQuestionsForTag(string name)
{
using var ctx = new QAContext(_connectionString);
return(ctx.Questions.Include(q => q.QuestionsTags)
.ThenInclude(qt => qt.Tag)
.Where(c => c.QuestionsTags.Any(t => t.Tag.Name == name))
.ToList());
}
public List <Question> GetAllQuestions()
{
using var ctx = new QAContext(_connectionString);
return(ctx.Questions.OrderByDescending(q => q.DatePosted).Include(q => q.Likes)
.Include(q => q.Answers)
.Include(q => q.QuestionsTags)
.ThenInclude(qt => qt.Tag)
.ToList());
}
public void AddUser(User user, string password)
{
string hash = BCrypt.Net.BCrypt.HashPassword(password);
using var ctx = new QAContext(_connectionString);
user.PasswordHash = hash;
ctx.Users.Add(user);
ctx.SaveChanges();
}
public Question GetQuestionById(int id)
{
using var ctx = new QAContext(_connectionString);
return(ctx.Questions.Include(q => q.Answers).Include(q => q.Likes)
.ThenInclude(a => a.User)
.Include(q => q.QuestionsTags)
.ThenInclude(qt => qt.Tag)
.Include(q => q.User)
.FirstOrDefault(q => q.Id == id));
}
private int AddTag(string name)
{
using var ctx = new QAContext(_connectionString);
var tag = new Tag {
Name = name
};
ctx.Tags.Add(tag);
ctx.SaveChanges();
return(tag.Id);
}
public void AddLike(int questionId, int userId)
{
using var context = new QAContext(_connectionString);
var like = new Like
{
QuestionId = questionId,
UserId = userId
};
context.Likes.Add(like);
context.SaveChanges();
}
private Tag GetTag(string name)
{
using var ctx = new QAContext(_connectionString);
return(ctx.Tags.FirstOrDefault(t => t.Name == name));
}
public bool IsEmailAvailable(string email)
{
using var ctx = new QAContext(_connectionString);
return(!ctx.Users.Any(u => u.Email == email));
}
public User GetByEmail(string email)
{
using var ctx = new QAContext(_connectionString);
return(ctx.Users.Include(u => u.Likes).FirstOrDefault(u => u.Email == email));
}
public int GetLikes(int id)
{
using var context = new QAContext(_connectionString);
return(context.Likes.Where(l => l.QuestionId == id).Count());
}
public void AddAnswer(Answer answer)
{
using var ctx = new QAContext(_connectionString);
ctx.Answers.Add(answer);
ctx.SaveChanges();
}