/// <summary>
/// 初始化数据库
/// </summary>
/// <param name="dbContext"></param>
public static void InitializeDatabase(EfDbContext dbContext)
{
if (!Core.AppContext.Settings.IsDynamicCompany)
{
return;
}
if (string.IsNullOrEmpty(Core.AppContext.CurrentSession.CompanyCode))
{
Database.SetInitializer <EfDbContext>(null);
return;
}
lock (_lockObj)
{
if (_InitializedDbList.Contains(Core.AppContext.CurrentSession.CompanyCode))
{
return;
}
_InitializedDbList.Add(Core.AppContext.CurrentSession.CompanyCode);
}
IDatabaseInitializer <EfDbContext> initializer;
if (!dbContext.Database.Exists())
{
initializer = new CreateDbIfNotExists <EfDbContext>();
}
else
{
initializer = new MigrateDatabaseToLatestVersion <EfDbContext, MigrationsConfiguration>();
}
Database.SetInitializer(initializer);
}
/// <summary>
/// 设置数据库初始化，策略为自动迁移到最新版本
/// </summary>
public static void Initialize()
{
if (Core.AppContext.Settings.IsDynamicCompany)
{
return;
}
var context = new EfDbContext();
context.Database.CommandTimeout = 180;
IDatabaseInitializer <EfDbContext> initializer;
if (!context.Database.Exists())
{
initializer = new CreateDbIfNotExists <EfDbContext>();
}
else
{
initializer = new MigrateDatabaseToLatestVersion <EfDbContext, MigrationsConfiguration>();
}
Database.SetInitializer(initializer);
//EF预热，解决EF6第一次加载慢的问题
ObjectContext objectContext = ((IObjectContextAdapter)context).ObjectContext;
var mappingItemCollection = (StorageMappingItemCollection)objectContext.ObjectStateManager
.MetadataWorkspace.GetItemCollection(DataSpace.CSSpace);
mappingItemCollection.GenerateViews(new List <EdmSchemaError>());
context.Dispose();
}
