/*
* Copyright (c) 2022 Vaughn Nugent
*
* Library: VNLib
* Package: VNLib.Plugins.Extensions.Data
* File: ProtectedDbStore.cs
*
* ProtectedDbStore.cs is part of VNLib.Plugins.Extensions.Data which is part of the larger
* VNLib collection of libraries and utilities.
*
* VNLib.Plugins.Extensions.Data is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* VNLib.Plugins.Extensions.Data is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see https://www.gnu.org/licenses/.
*/
using System;
using System.Linq;
using VNLib.Plugins.Extensions.Data.Abstractions;
namespace VNLib.Plugins.Extensions.Data
{
#nullable enable
///
/// A data store that provides unique identities and protections based on an entity that has an owner
///
public abstract class ProtectedDbStore : DbStore where TEntity : class, IDbModel, IUserEntity
{
///
protected override IQueryable GetCollectionQueryBuilder(TransactionalDbContext context, params string[] constraints)
{
string userId = constraints[0];
//Query items for the user and its id
return from item in context.Set()
where item.UserId == userId
orderby item.Created descending
select item;
}
///
/// Gets a single item contrained by a given user-id and item id
///
///
///
///
protected override IQueryable GetSingleQueryBuilder(TransactionalDbContext context, params string[] constraints)
{
string key = constraints[0];
string userId = constraints[1];
//Query items for the user and its id
return from item in context.Set()
where item.Id == key && item.UserId == userId
select item;
}
///
protected override IQueryable GetSingleQueryBuilder(TransactionalDbContext context, TEntity record)
{
return this.GetSingleQueryBuilder(context, record.Id, record.UserId);
}
}
}