private void AddCatalogItems(CatalogDBContext context)
        {
            var preconfiguredItems = useCustomizationData
                ? GetCatalogItemsFromFile(context)
                : PreconfiguredData.GetPreconfiguredCatalogItems();

            foreach (var item in preconfiguredItems)
            {
                var sequenceId = indexGenerator.GetNextSequenceValue(context);
                item.Id = sequenceId;
                context.CatalogItems.Add(item);
            }

            context.SaveChanges();
        }
        private void AddCatalogTypes(CatalogDBContext context)
        {
            var preconfiguredTypes = useCustomizationData
                ? GetCatalogTypesFromFile()
                : PreconfiguredData.GetPreconfiguredCatalogTypes();

            int sequenceId = GetSequenceIdFromSelectedDBSequence(context, DBCatalogSequenceName);

            foreach (var type in preconfiguredTypes)
            {
                type.Id = sequenceId;
                context.CatalogTypes.Add(type);
                sequenceId++;
            }

            context.SaveChanges();
        }
        private void AddCatalogBrands(CatalogDBContext context)
        {
            var preconfiguredBrands = useCustomizationData
                ? GetCatalogBrandsFromFile()
                : PreconfiguredData.GetPreconfiguredCatalogBrands();

            int sequenceId = GetSequenceIdFromSelectedDBSequence(context, DBBrandSequenceName);

            foreach (var brand in preconfiguredBrands)
            {
                brand.Id = sequenceId;
                context.CatalogBrands.Add(brand);
                sequenceId++;
            }

            context.SaveChanges();
        }
        private IEnumerable <CatalogType> GetCatalogTypesFromFile()
        {
            var    contentRootPath     = HostingEnvironment.ApplicationPhysicalPath;
            string csvFileCatalogTypes = Path.Combine(contentRootPath, "Setup", "CatalogTypes.csv");

            if (!File.Exists(csvFileCatalogTypes))
            {
                return(PreconfiguredData.GetPreconfiguredCatalogTypes());
            }

            string[] csvheaders;

            string[] requiredHeaders = { "catalogtype" };
            csvheaders = GetHeaders(csvFileCatalogTypes, requiredHeaders);

            return(File.ReadAllLines(csvFileCatalogTypes)
                   .Skip(1)                      // skip header row
                   .Select(x => CreateCatalogType(x))
                   .Where(x => x != null));
        }
        static IEnumerable <CatalogItem> GetCatalogItemsFromFile(CatalogDBContext context)
        {
            var    contentRootPath     = HostingEnvironment.ApplicationPhysicalPath;
            string csvFileCatalogItems = Path.Combine(contentRootPath, "Setup", "CatalogItems.csv");

            if (!File.Exists(csvFileCatalogItems))
            {
                return(PreconfiguredData.GetPreconfiguredCatalogItems());
            }

            string[] csvheaders;
            string[] requiredHeaders = { "catalogtypename", "catalogbrandname", "description", "name", "price", "pictureFileName" };
            string[] optionalheaders = { "availablestock", "restockthreshold", "maxstockthreshold", "onreorder" };
            csvheaders = GetHeaders(csvFileCatalogItems, requiredHeaders, optionalheaders);

            var catalogTypeIdLookup  = context.CatalogTypes.ToDictionary(ct => ct.Type, ct => ct.Id);
            var catalogBrandIdLookup = context.CatalogBrands.ToDictionary(ct => ct.Brand, ct => ct.Id);

            return(File.ReadAllLines(csvFileCatalogItems)
                   .Skip(1)      // skip header row
                   .Select(row => Regex.Split(row, ",(?=(?:[^\"]*\"[^\"]*\")*[^\"]*$)"))
                   .Select(column => CreateCatalogItem(column, csvheaders, catalogTypeIdLookup, catalogBrandIdLookup))
                   .Where(x => x != null));
        }