ApplianceRepair/Services.cs

using Microsoft.EntityFrameworkCore;

namespace ApplianceRepair
{
    public class HomePageReader(DatabaseContext db)
    {
        public async Task<HomePageRecord?> ReadLatestRecord()
        {
            return await db.HomePage.OrderByDescending(page => page.Id).FirstAsync();
        }
    }

    public class ContentCardReader(DatabaseContext db)
    {
        public async Task<List<ContentCardRecord>?> ReadAllByPageAndGroup(string belongsToPage, string group)
        {
            return await db.ContentCards.Where(card => card.BelongsToPage == belongsToPage && card.Group == group).ToListAsync();
        }

        public async Task<List<ContentCardRecord>?> ReadAllByPage(string belongsToPage)
        {
            return await db.ContentCards.Where(card => card.BelongsToPage == belongsToPage).ToListAsync();
        }
    }

    public class BusinessConfigReader(DatabaseContext db)
    {
        public async Task<BusinessConfigRecord?> ReadLatestRecord()
        {
            return await db.BusinessConfig.OrderByDescending(page => page.Id).FirstOrDefaultAsync();
        }
    }
}