another abp bulk/batch operation extesion base on http://entityframework-extensions.net

EfRepositoryBulkExtensions.cs

    public static class EfRepositoryBulkExtensions
    {
        public static void BulkInsert<TEntity, TPrimaryKey>(this IRepository<TEntity, TPrimaryKey> repository, IEnumerable<TEntity> entities)
            where TEntity : class, IEntity<TPrimaryKey>, new()
        {
            var dbContext = repository.GetDbContext();
            dbContext.BulkInsert(entities);
        }

        public static async Task BulkInsertAsync<TEntity, TPrimaryKey>(this IRepository<TEntity, TPrimaryKey> repository, IEnumerable<TEntity> entities)
            where TEntity : class, IEntity<TPrimaryKey>, new()
        {
            var dbContext = repository.GetDbContext();
            await dbContext.BulkInsertAsync(entities);
        }

        public static void BulkDelete<TEntity, TPrimaryKey>(this IRepository<TEntity, TPrimaryKey> repository, IEnumerable<TEntity> entities)
            where TEntity : class, IEntity<TPrimaryKey>, new()
        {
            var dbContext = repository.GetDbContext();
            dbContext.BulkDelete(entities);
        }

        public static void BulkDelete<TEntity, TPrimaryKey>(IRepository<TEntity, TPrimaryKey> repository, Expression<Func<TEntity, bool>> predicate)
            where TEntity : class, IEntity<TPrimaryKey>, new()
        {
            var dbContext = repository.GetDbContext();
            dbContext.Set<TEntity>().Where(predicate).DeleteFromQuery();
        }

        public static async Task BulkDeleteAsync<TEntity, TPrimaryKey>(this IRepository<TEntity, TPrimaryKey> repository, IEnumerable<TEntity> entities)
            where TEntity : class, IEntity<TPrimaryKey>, new()
        {
            var dbContext = repository.GetDbContext();
            await dbContext.BulkDeleteAsync(entities);
        }

        public static async Task BulkDeleteAsync<TEntity, TPrimaryKey>(IRepository<TEntity, TPrimaryKey> repository, Expression<Func<TEntity, bool>> predicate)
            where TEntity : class, IEntity<TPrimaryKey>, new()
        {
            var dbContext = repository.GetDbContext();
            await dbContext.Set<TEntity>().Where(predicate).DeleteFromQueryAsync();
        }

        public static void BulkUpdate<TEntity, TPrimaryKey>(this IRepository<TEntity, TPrimaryKey> repository, IEnumerable<TEntity> entities)
            where TEntity : class, IEntity<TPrimaryKey>, new()
        {
            var dbContext = repository.GetDbContext();
            dbContext.BulkUpdate(entities);
        }

        public static void BulkUpdate<TEntity, TPrimaryKey>(IRepository<TEntity, TPrimaryKey> repository, Expression<Func<TEntity, bool>> predicate, Expression<Func<TEntity, TEntity>> updateExpression)
            where TEntity : class, IEntity<TPrimaryKey>, new()
        {
            var dbContext = repository.GetDbContext();
            dbContext.Set<TEntity>().Where(predicate).UpdateFromQuery(updateExpression);
        }

        public static async Task BulkUpdateAsync<TEntity, TPrimaryKey>(this IRepository<TEntity, TPrimaryKey> repository, IEnumerable<TEntity> entities)
            where TEntity : class, IEntity<TPrimaryKey>, new()
        {
            var dbContext = repository.GetDbContext();
            await dbContext.BulkUpdateAsync(entities);
        }

        public static async Task BulkUpdateAsync<TEntity, TPrimaryKey>(IRepository<TEntity, TPrimaryKey> repository, Expression<Func<TEntity, bool>> predicate, Expression<Func<TEntity, TEntity>> updateExpression)
            where TEntity : class, IEntity<TPrimaryKey>, new()
        {
            var dbContext = repository.GetDbContext();
            await dbContext.Set<TEntity>().Where(predicate).UpdateFromQueryAsync(updateExpression);
        }
    }

also reference to https://gist.github.com/rqx110/38df69360cc8f5f37dee75fa1f94e742