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using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using DevHive.Data.Interfaces;
using DevHive.Data.Models;
using DevHive.Data.Models.Relational;
using Microsoft.EntityFrameworkCore;
namespace DevHive.Data.Repositories
{
public class PostRepository : BaseRepository<Post>, IPostRepository
{
private readonly DevHiveContext _context;
private readonly IUserRepository _userRepository;
public PostRepository(DevHiveContext context, IUserRepository userRepository)
: base(context)
{
this._context = context;
this._userRepository = userRepository;
}
public async Task<bool> AddNewPostToCreator(Guid userId, Post post)
{
User user = await this._userRepository.GetByIdAsync(userId);
user.Posts.Add(post);
return await this.SaveChangesAsync();
}
#region Read
public override async Task<Post> GetByIdAsync(Guid id)
{
return await this._context.Posts
.Include(x => x.Comments)
.Include(x => x.Creator)
.Include(x => x.Attachments)
// .Include(x => x.Rating)
.FirstOrDefaultAsync(x => x.Id == id);
}
/// <summary>
/// This method returns the post that is made at exactly the given time and by the given creator
/// </summary>
public async Task<Post> GetPostByCreatorAndTimeCreatedAsync(Guid creatorId, DateTime timeCreated)
{
return await this._context.Posts
.FirstOrDefaultAsync(p => p.Creator.Id == creatorId &&
p.TimeCreated == timeCreated);
}
public async Task<List<string>> GetFileUrls(Guid postId)
{
return (await this.GetByIdAsync(postId)).Attachments.Select(x => x.FileUrl).ToList();
}
#endregion
#region Update
public override async Task<bool> EditAsync(Guid id, Post newEntity)
{
Post post = await this.GetByIdAsync(id);
// var ratingId = post.Rating.Id;
this._context
.Entry(post)
.CurrentValues
.SetValues(newEntity);
List<PostAttachments> postAttachments = new();
foreach(var attachment in newEntity.Attachments)
postAttachments.Add(attachment);
post.Attachments = postAttachments;
post.Comments.Clear();
foreach(var comment in newEntity.Comments)
post.Comments.Add(comment);
// post.Rating.Id = ratingId;
this._context.Entry(post).State = EntityState.Modified;
return await this.SaveChangesAsync();
}
#endregion
#region Validations
public async Task<bool> DoesPostExist(Guid postId)
{
return await this._context.Posts
.AsNoTracking()
.AnyAsync(r => r.Id == postId);
}
public async Task<bool> DoesPostHaveFiles(Guid postId)
{
return await this._context.Posts
.AsNoTracking()
.Where(x => x.Id == postId)
.Select(x => x.Attachments)
.AnyAsync();
}
#endregion
}
}
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