protected void Application_Start()
{
AreaRegistration.RegisterAllAreas();
GlobalConfiguration.Configure(WebApiConfig.Register);
FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);
RouteConfig.RegisterRoutes(RouteTable.Routes);
BundleConfig.RegisterBundles(BundleTable.Bundles);
GlobalConfiguration.Configuration.Formatters.JsonFormatter.SerializerSettings = Speedy.Extensions.GetSerializerSettings(true, false);
GlobalConfiguration.Configuration.Formatters.Remove(GlobalConfiguration.Configuration.Formatters.XmlFormatter);
GlobalConfiguration.Configuration.EnsureInitialized();
Database.SetInitializer(new MigrateDatabaseToLatestVersion <ScribeSqlDatabase, Configuration>(true));
var appDataPath = HttpContext.Current.Server.MapPath("~/App_Data");
var client = new ScribeDataChannel(new ScribeDatabaseProvider(() => new ScribeSqlDatabase()));
var provider = new KeyValueRepositoryProvider <Event>(appDataPath);
Tracker = Tracker.Start(client, provider);
using (var datacontext = new ScribeSqlDatabase())
{
var siteSettings = SiteSettings.Load(datacontext);
IsConfigured = datacontext.Users.Any();
PrintCss = siteSettings.PrintCss ?? string.Empty;
ViewCss = siteSettings.ViewCss ?? string.Empty;
}
}
/// <summary>
/// 获取表示与当前 <see cref="DbProviderFactory"/> 关联的数据库提供程序名称。
/// </summary>
/// <param name="database">表示一个 <see cref="System.Data.Entity.Database"/> 对象。</param>
/// <returns>表示与当前 <see cref="DbProviderFactory"/> 关联的数据库提供程序名称。</returns>
public static string GetProviderName(this System.Data.Entity.Database database)
{
DbProviderFactory factory = GetDbProviderFactory(database);
string providerName = factory.GetProviderName();
return(providerName);
}
/// <summary>
/// 获取表示与当前 <see cref="DbProviderFactory"/> 关联的 <see cref="IScriptParameterParser"/> 对象。
/// </summary>
/// <param name="database">表示一个 <see cref="System.Data.Entity.Database"/> 对象。</param>
/// <returns>表示与当前 <see cref="DbProviderFactory"/> 关联的 <see cref="IScriptParameterParser"/> 对象。</returns>
public static DbScriptParameterParser GetDbScriptParameterParser(this System.Data.Entity.Database database)
{
string providerName = GetProviderName(database);
DbScriptParameterParser parser = DbScriptParameterParser.GetScriptParameterParser(providerName);
return(parser);
}
private static void DropDb(System.Data.Entity.Database databaseContext, string databaseName)
{
string sql = $@"
ALTER DATABASE [{databaseName}] SET SINGLE_USER WITH ROLLBACK IMMEDIATE;
DROP DATABASE [{databaseName}];";
databaseContext.ExecuteSqlCommand(TransactionalBehavior.DoNotEnsureTransaction, sql);
}
/// <summary>
/// 返回当前 <paramref name="database"/> 所使用的 <see cref="DbProviderFactory"/> 工厂对象。
/// </summary>
/// <param name="database">表示一个 <see cref="System.Data.Entity.Database"/> 对象。</param>
/// <returns>当前 <paramref name="database"/> 所使用的 <see cref="DbProviderFactory"/> 工厂对象。</returns>
public static DbProviderFactory GetDbProviderFactory(this System.Data.Entity.Database database)
{
Check.NotNull(database);
DbConnection connection = database.Connection;
DbProviderFactory factory = DbProviderFactories.GetFactory(connection);
return(factory);
}
/// <summary>
/// 使用给定的参数执行给定的查询;
/// .Net472 下类型为 DbRawSqlQuery
/// .coreapp 下类型为 IQueryable,
/// 使用2者向上的公共类型 IEnumerable
/// </summary>
public static IEnumerable <T> SqlQuery <T>(this DatabaseFacade database, string sql, params object[] parameters)
where T : class
{
using (var db2 = new ContextForQueryType <T>(database.GetDbConnection()))
{
return(db2.Query <T>().FromSql(sql, parameters));
}
}
/// <summary>
/// 动态查询主方法
/// </summary>
/// <returns></returns>
public static IEnumerable SqlQueryForDynamic(this System.Data.Entity.Database db,
string sql,
params object[] parameters)
{
IDbConnection defaultConn = DefaultConnection;
//ADO.NET数据库连接字符串
db.Connection.ConnectionString = DefaultConnectionString;
return(SqlQueryForDynamicOtherDB(db, sql, defaultConn, parameters));
}
public void GetDBConnection(ValidationContext validationContext)
{
//var db = validationContext.ObjectInstance
//Utils.ObjectJsonDumper.Dump(, 1);
Console.WriteLine("getting DBContext for type: " + DBContextServiceType.ToString());
//var ctx = (System.Data.Entity.DbContext)validationContext.GetService(DBContextServiceType);
var ctx = DbContextGetter();
Console.WriteLine("DBContext is null? " + (ctx == null));
m_database = ctx.Database;
}
protected override void OnModelCreating(DbModelBuilder modelBuilder)
{
var builder = modelBuilder.Entity <User>();
builder.ToTable(nameof(User));
builder.HasKey(p => p.Id);
var model = modelBuilder.Build(Database.Connection);
var sqliteConnectionInitializer = new SqliteCreateDatabaseIfNotExists <EntityContext>(modelBuilder);
DataBase.SetInitializer(sqliteConnectionInitializer);
//sqliteConnectionInitializer.InitializeDatabase(this);
//IDatabaseCreator sqliteDatabaseCreator = new SqliteDatabaseCreator();
//sqliteDatabaseCreator.Create(Database, model);
}
/// <summary>
/// 基于当前 <paramref name="database"/> 获取与其相同数据库环境的 <see cref="NDF.Data.Common.Database"/> 实例对象。
/// </summary>
/// <param name="database">表示一个 <see cref="System.Data.Entity.Database"/> 对象。</param>
/// <returns>与 <paramref name="database"/> 相同数据库环境的 <see cref="NDF.Data.Common.Database"/> 实例对象。</returns>
public static NDF.Data.Common.Database GetGeneralDatabase(this System.Data.Entity.Database database)
{
string connectionString = GetConnectionString(database);
lock (_databaseCache)
{
NDF.Data.Common.Database generalDatabase = null;
if (!_databaseCache.Value.TryGetValue(connectionString, out generalDatabase))
{
string providerName = GetProviderName(database);
generalDatabase = DatabaseFactories.GetFactory(providerName).CreateDatabase(connectionString);
_databaseCache.Value.Add(connectionString, generalDatabase);
}
return(generalDatabase);
}
}
/// <summary>
/// Creates a transaction and exectures the passed code then commits or rolls back automatically
/// </summary>
/// <param name="db"></param>
/// <param name="cb">The code to execute</param>
public static async Task Transaction(this System.Data.Entity.Database db, Func <Task> cb)
{
using (var tx = db.BeginTransaction())
{
try
{
await cb();
tx.Commit();
}
catch (Exception)
{
tx.Rollback();
throw;
}
}
}
public static dynamic SqlFunctionForDynamic(this System.Data.Entity.Database db,
string sql,
params object[] parameters)
{
IDbConnection conn = DefaultConnection;
//ADO.NET数据库连接字符串
conn.ConnectionString = DefaultConnectionString;
if (conn.State != ConnectionState.Open)
{
conn.Open();
}
IDbCommand cmd = conn.CreateCommand();
cmd.CommandText = sql;
cmd.CommandType = CommandType.StoredProcedure;
if (parameters != null)
{
foreach (var item in parameters)
{
cmd.Parameters.Add(item);
}
}
//1、DataReader查询数据
using (IDataReader dataReader = cmd.ExecuteReader())
{
if (!dataReader.Read())
{
return(null);
}
//2、DataReader转换Json
string jsonstr = Common.JsonConverter.ToJson(dataReader);
dataReader.Close();
dataReader.Dispose();
cmd.Dispose();
conn.Close();
conn.Dispose();
//3、Json转换动态类
dynamic dyna = Common.JsonConverter.ConvertJson(jsonstr);
return(dyna);
}
}
/// <summary>
/// Wrapper function of Database.SqlQuery<T>.
/// T can be any view, not necessary predefined model class
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="self"></param>
/// <param name="sp"></param>
/// <returns></returns>
public static IEnumerable <T> SqlQuery <T>(this System.Data.Entity.Database self, IStoredProcedureBase sp)
{
if (self == null)
{
throw new ArgumentNullException("self");
}
if (sp == null)
{
throw new ArgumentException("IStoredProcedure sp");
}
var arguments = PrepareArguments(sp);
try
{
return(self.SqlQuery <T>(arguments.Item1, arguments.Item2));
}
catch (Exception ex)
{
throw ex;
}
return(null);
}
public static ICoreQueryable <T> QueryData <T>(this System.Data.Entity.Database database)
{
return(new CoreQueryable <T>(database));
}
/// <summary>
/// 获取数据库连接;
/// </summary>
/// <param name="databaseFacade"></param>
/// <returns></returns>
public static DbConnection GetDbConnection(this DatabaseFacade databaseFacade)
{
return(databaseFacade.Connection);
}
/// <summary>
/// 秒数;
/// </summary>
/// <param name="databaseFacade"></param>
/// <param name="commandTimeout">秒为单位;</param>
public static void SetCommandTimeout(this DatabaseFacade databaseFacade, int commandTimeout)
{
databaseFacade.CommandTimeout = commandTimeout;
}
private static IEnumerable SqlQueryForDynamicOtherDB(this System.Data.Entity.Database db, string sql, IDbConnection conn, params object[] parameters)
{
conn.ConnectionString = db.Connection.ConnectionString;
if (conn.State != ConnectionState.Open)
{
conn.Open();
}
IDbCommand cmd = conn.CreateCommand();
cmd.CommandText = sql;
if (parameters != null)
{
foreach (var item in parameters)
{
cmd.Parameters.Add(item);
}
}
using (IDataReader dataReader = cmd.ExecuteReader())
{
if (!dataReader.Read())
{
return(null); //无结果返回Null
}
#region 构建动态字段
TypeBuilder builder = DatabaseExtensions.CreateTypeBuilder(
"EF_DynamicModelAssembly",
"DynamicModule",
"DynamicType");
int fieldCount = dataReader.FieldCount;
for (int i = 0; i < fieldCount; i++)
{
Type t = dataReader.GetFieldType(i);
switch (t.Name.ToLower())
{
case "decimal":
t = typeof(Decimal?);
break;
case "double":
t = typeof(Double?);
break;
case "datetime":
t = typeof(DateTime?);
break;
case "single":
t = typeof(float?);
break;
case "int16":
t = typeof(int?);
break;
case "int32":
t = typeof(int?);
break;
case "int64":
t = typeof(int?);
break;
default:
break;
}
DatabaseExtensions.CreateAutoImplementedProperty(
builder,
dataReader.GetName(i),
t);
}
#endregion
cmd.Parameters.Clear();
dataReader.Close();
dataReader.Dispose();
cmd.Dispose();
conn.Close();
conn.Dispose();
Type returnType = builder.CreateType();
if (parameters != null)
{
return(db.SqlQuery(returnType, sql, parameters));
}
else
{
return(db.SqlQuery(returnType, sql));
}
}
}
/// <summary>
/// 检查数据库是否与当前 Code First 模型兼容。
/// <para>该方法等效于调用方法时 <see cref="System.Data.Entity.Database.CompatibleWithModel(Boolean)"/> 传入参数 false。</para>
/// </summary>
/// <param name="_this">表示 <see cref="System.Data.Entity.DbContext"/> 实体上下文对象中引用的 数据库实例。</param>
/// <returns>如果该数据库实例与当前 Code First 模型兼容，则返回 true，否则返回 false。</returns>
/// <remarks>
/// 该方法内部调用 <see cref="System.Data.Entity.Database"/> 对象的 CompatibleWithModel(false) 进行判断。
/// </remarks>
public static bool CompatibleWithModel(this System.Data.Entity.Database _this)
{
return(_this.CompatibleWithModel(false));
}
public Database(System.Data.Entity.Database database)
{
_database = database;
}
/// <summary>
/// 解析 SQL 脚本中的参数名称列表并返回。
/// </summary>
/// <param name="database">表示一个 <see cref="System.Data.Entity.Database"/> 对象。</param>
/// <param name="sqlScript">待解析的 SQL 脚本。</param>
/// <returns>返回 <paramref name="sqlScript"/> 中定义的所有脚本参数名称所构成的一个数组。</returns>
public static string[] GetParameterNames(this System.Data.Entity.Database database, string sqlScript)
{
DbScriptParameterParser parser = GetDbScriptParameterParser(database);
return(parser.GetParameterNames(sqlScript));
}
/// <summary>
/// 获取表示与当前 <see cref="DbProviderFactory"/> 关联的 <see cref="DbCommand"/> 查询参数名称前缀字符。
/// </summary>
/// <param name="database">表示一个 <see cref="System.Data.Entity.Database"/> 对象。</param>
/// <returns>表示与当前 <see cref="DbProviderFactory"/> 关联的 <see cref="DbCommand"/> 查询参数名称前缀字符。</returns>
public static string GetParameterToken(this System.Data.Entity.Database database)
{
DbScriptParameterParser parser = GetDbScriptParameterParser(database);
return(parser.ParameterToken);
}
/// <summary>
/// 获取该数据库访问对象的数据库连接字符串值。
/// </summary>
/// <param name="database">表示一个 <see cref="System.Data.Entity.Database"/> 对象。</param>
/// <returns>该数据库访问对象的数据库连接字符串值。</returns>
public static string GetConnectionString(this System.Data.Entity.Database database)
{
return(database.Connection.ConnectionString);
}
Setup()
{
EFDatabase.SetInitializer <DemoDbContext>(
new DropCreateDatabaseIfModelChanges <DemoDbContext>());
}
static TestHelper()
{
Database.SetInitializer(new MigrateDatabaseToLatestVersion <ScribeSqlDatabase, Configuration>(true));
}
public static ICoreQueryable <object> QueryData(this System.Data.Entity.Database database, string schemaName)
{
return(new CoreQueryable <object>(database));
}
public ApplicationDbContext() : base("name=SqlServer")
{
Database.SetInitializer(new TodosInitializer());
//Database.Initialize(true);
}
public CoreQueryable(System.Data.Entity.Database database)
{
_database = database;
Query = new SqlLam <T>();
Query._builder.QueryByFieldNotNull(typeof(T).Name, "Id");
}
public BgDataContext(string connectionString)
: base(_sqlConnection = new SQLiteConnection(_connectionString = connectionString), true)
{
_sqlConnection.Open();
Entity.SetInitializer <BgDataContext>(null);
}
public AppDbContext()
{
Database.SetInitializer <AppDbContext>(null);
InstanceId = Guid.NewGuid();
}