/// <summary>
/// 基于EF的单元测试可以通过初始化自己的OptionBuilder
/// </summary>
/// <param name="optionFactory"></param>
public static void Initlize(IContextOptionBuilderFactory optionFactory)
{
if (DBContextOptionsLoader.optionFactory == null)
{
lock (lockRoot)
{
if (DBContextOptionsLoader.optionFactory == null)
{
DBContextOptionsLoader.optionFactory = optionFactory;
}
}
}
}
public static DbContextOptionsBuilder <T> CreateDbOption <T>(DbInfo dbInfo)
where T : DbContext
{
// 这里是public,没办法防止外面随意调用，所以为了防止初始化后被随意改变，这里搞成单例
if (optionFactory == null)
{
lock (lockRoot)
{
if (optionFactory == null)
{
switch (dbInfo.DbType)
{
default:
case DbType.MySql:
optionFactory = new MySqlDBContextOptionBuilder();
break;
case DbType.Oracle:
optionFactory = new OracleDBContextOptionBuilder();
break;
case DbType.SqlServer:
optionFactory = new SqlServerDBContextOptionBuilder();
break;
case DbType.InMemory:
optionFactory = new InMemoryDBContextOptionBuilder();
break;
case DbType.PostgreSQL:
optionFactory = new PostgresqlDBContextOptionBuilder();
break;
}
}
}
}
DbContextOptionsBuilder <T> options = optionFactory.CreateOptionsBuilder <T>(optionFactory.GetConnectionString(dbInfo));
return(options);
}
