public static void Generate(IServiceProvider serviceProvider)
{
using var context = new PromotionEngineDbContext(
serviceProvider.GetRequiredService <DbContextOptions <PromotionEngineDbContext> >());
// Check whether data has been generated
if (context.PromotionTypes.Any())
{
return; // Data already generated
}
// Setup ID's for Promotions
string promotionId1 = "prom_" + PrimaryKeyGenerator.Generate();
string promotionId2 = "prom_" + PrimaryKeyGenerator.Generate();
string promotionId3 = "prom_" + PrimaryKeyGenerator.Generate();
string promotionId4 = "prom_" + PrimaryKeyGenerator.Generate();
// Setup ID's for Promotion Types
string promotionTypeId1 = "ptype_" + PrimaryKeyGenerator.Generate();
string promotionTypeId2 = "ptype_" + PrimaryKeyGenerator.Generate();
string promotionTypeId3 = "ptype_" + PrimaryKeyGenerator.Generate();
// Insert promotion types
context.PromotionTypes.AddRange(
new PromotionType
{
PromotionTypeId = promotionTypeId1,
Cost = 130
},
new PromotionType
{
PromotionTypeId = promotionTypeId2,
Cost = 45
},
new PromotionType
{
PromotionTypeId = promotionTypeId3,
Cost = 30
}
);
// Insert promotions:
// 3A's = 130
// 2B's = 45
// C + D = 30
context.Promotions.AddRange(
new Promotion
{
PromotionId = promotionId1,
PromotionTypeId = promotionTypeId1,
SKU = SKUEnum.A,
Count = 3
},
new Promotion
{
PromotionId = promotionId2,
PromotionTypeId = promotionTypeId2,
SKU = SKUEnum.B,
Count = 2
},
new Promotion
{
PromotionId = promotionId3,
PromotionTypeId = promotionTypeId3,
SKU = SKUEnum.C,
Count = 1
},
new Promotion
{
PromotionId = promotionId4,
PromotionTypeId = promotionTypeId3,
SKU = SKUEnum.D,
Count = 1
}
);
context.SaveChanges();
}
public PromotionEngine(IServiceProvider serviceProvider)
{
_context = serviceProvider.GetRequiredService <PromotionEngineDbContext>();
}
