MembershipRepository.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using Microsoft.EntityFrameworkCore;
using ScientificReport.DAL.DbContext;
using ScientificReport.DAL.Entities;
using ScientificReport.DAL.Interfaces;

namespace ScientificReport.DAL.Repositories
{
    public class MembershipRepository: IRepository<Membership>
    {
        private readonly ScientificReportDbContext _context;
        
        public MembershipRepository(ScientificReportDbContext context)
        {
            _context = context;
        }
        
        public virtual IEnumerable<Membership> All()
        {
            return _context.Memberships.Include(u => u.User);
        }

        public virtual IEnumerable<Membership> AllWhere(Func<Membership, bool> predicate)
        {
            return All().Where(predicate);
        }

        public virtual Membership Get(Guid id)
        {
            return All().FirstOrDefault(u => u.Id == id);
        }

        public virtual Membership Get(Func<Membership, bool> predicate)
        {
            return All().Where(predicate).FirstOrDefault();
        }

        public virtual void Create(Membership item)
        {
            _context.Memberships.Add(item);
            _context.SaveChanges();
        }

        public virtual void Update(Membership item)
        {
            if (item != null)
            {
                _context.Memberships.Update(item);
                _context.SaveChanges();
            }
        }

        public virtual void Delete(Guid id)
        {
            var item = _context.Memberships.Find(id);
            if (item != null)
            {
                _context.Memberships.Remove(item);
                _context.SaveChanges();
            }
        }

        public virtual IQueryable<Membership> GetQuery()
        {
            return _context.Memberships;
        }
    }
}