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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Threading.Tasks;
using DevHive.Data.Interfaces;
using DevHive.Data.Models;
using Microsoft.EntityFrameworkCore;
namespace DevHive.Data.Repositories
{
public class CommentRepository : BaseRepository<Comment>, ICommentRepository
{
private readonly DevHiveContext _context;
public CommentRepository(DevHiveContext context)
: base(context)
{
this._context = context;
}
#region Read
public override async Task<Comment> GetByIdAsync(Guid id)
{
return await this._context.Comments
.Include(x => x.Creator)
.Include(x => x.Post)
.FirstOrDefaultAsync(x => x.Id == id);
}
/// <summary>
/// This method returns the comment that is made at exactly the given time and by the given creator
/// </summary>
public async Task<Comment> GetCommentByIssuerAndTimeCreatedAsync(Guid issuerId, DateTime timeCreated)
{
return await this._context.Comments
.FirstOrDefaultAsync(p => p.Creator.Id == issuerId &&
p.TimeCreated == timeCreated);
}
public async Task<List<Comment>> GetPostComments(Guid postId)
{
return await this._context.Posts
.SelectMany(x => x.Comments)
.Where(x => x.Post.Id == postId)
.ToListAsync();
}
#endregion
#region Update
public override async Task<bool> EditAsync(Guid id, Comment newEntity)
{
Comment comment = await this.GetByIdAsync(id);
this._context
.Entry(comment)
.CurrentValues
.SetValues(newEntity);
return await this.SaveChangesAsync();
}
#endregion
#region Validations
public async Task<bool> DoesCommentExist(Guid id)
{
return await this._context.Comments
.AsNoTracking()
.AnyAsync(r => r.Id == id);
}
#endregion
}
}
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