telegram-bot/Core/Extensions/RepositoryExtension.cs

using Microsoft.EntityFrameworkCore;

namespace Kruzya.TelegramBot.Core.Extensions
{
    public static class RepositoryExtension
    {
        #region DbContext

        /// <summary>
        /// Marks the entity as created.
        /// </summary>
        /// <param name="dbContext"></param>
        /// <param name="entity">Entity for marking as created.</param>
        public static void MarkAsCreated(this DbContext dbContext, object entity) =>
            dbContext.Entry(entity).State = EntityState.Added;

        /// <summary>
        /// Marks the entity as deleted.
        /// </summary>
        /// <param name="dbContext"></param>
        /// <param name="entity">Entity for marking as deleted.</param>
        public static void MarkAsDeleted(this DbContext dbContext, object entity) =>
            dbContext.Entry(entity).State = EntityState.Deleted;

        /// <summary>
        /// Marks the entity as modified.
        /// </summary>
        /// <param name="dbContext"></param>
        /// <param name="entity">Entity for marking as modified.</param>
        public static void MarkAsModified(this DbContext dbContext, object entity) =>
            dbContext.Entry(entity).State = EntityState.Modified;

        #endregion

        #region Repository

        public static TEntity Create<TEntity>(this DbSet<TEntity> repository) where TEntity : class, new()
        {
            var entity = new TEntity();
            repository.Add(entity);

            return entity;
        }

        #endregion
    }
}