public async Task SaveAsync<T>(IEnumerable<T> models)
where T : BaseModel
{
var existingIds = _dbContext.Set<T>().Select(m => m.Id);
_dbContext.UpdateRange(models.Where(m => existingIds.Contains(m.Id)));
await _dbContext.AddRangeAsync(models.Where(m => !existingIds.Contains(m.Id)));
await _dbContext.SaveChangesAsync();
}
private async Task SyncModels <T>(IEnumerable <T> models, IQueryable <T> dbSet)
where T : BaseModel
{
var existingIds = dbSet.Select(m => m.Id);
var modelIds = models.Select(m => m.Id);
_dbContext.RemoveRange(dbSet.Where(m => !modelIds.Contains(m.Id)));
_dbContext.UpdateRange(models.Where(m => existingIds.Contains(m.Id)));
await _dbContext.AddRangeAsync(models.Where(m => !existingIds.Contains(m.Id)));
await _dbContext.SaveChangesAsync();
}