/// <summary>
/// 是否启用删除
/// </summary>
/// <param name="databaseName"></param>
/// <returns></returns>
public bool EnableSoftDelete(string databaseName)
{
var dataBaseConfiguration = DataBaseConfigurations.Find(m => m.DataBaseName == databaseName);
if (dataBaseConfiguration == null)
{
throw new ArgumentException($"数据库：{databaseName} 未配置！查找不到数据库信息");
}
return(!dataBaseConfiguration.DisableSoftDelete);
}
/// <summary>
/// 根据数据库名称 获取数据库连接
/// </summary>
/// <param name="databaseName">数据库名称</param>
/// <returns>数据库连接字符串</returns>
public string MasterDataBaseConnectionString(string databaseName)
{
var dataBaseConfiguration = DataBaseConfigurations.Find(m => m.DataBaseName == databaseName);
if (dataBaseConfiguration == null)
{
throw new ArgumentException($"数据库：{databaseName} 主库连接未配置!");
}
return(dataBaseConfiguration.MasterDataBaseConnectionString);
}
public static DbContextOptionsBuilder ResolveDbProvider(
this DbContextOptionsBuilder optionsBuilder,
DataBaseConfigurations configurations)
{
switch (configurations.Provider)
{
case DbProviderType.PostgreSql: return(optionsBuilder.UseNpgsql(configurations.ConnectionString));
default: throw new NotImplementedException($"{configurations.Provider} db provider is not supported");
}
}
public static IServiceCollection AddAllServices(this IServiceCollection collection, IConfiguration configuration)
{
var databaseConfigurations = new DataBaseConfigurations(
configuration[$"Databases:{DatabaseType}"],
configuration.GetConnectionString(DatabaseType)
);
collection.AddSingleton(databaseConfigurations);
collection.AddScoped(typeof(IReadOnlyRepository <>), typeof(ReadOnlyMongoRepository <>));
return(collection);
}
/// <summary>
/// 根据数据库名称 获取从库数据库连接
/// </summary>
/// <param name="databaseName">数据库名称</param>
/// <returns>数据库连接字符串</returns>
public string SlaveDataBaseConnectionString(string databaseName)
{
var dataBaseConfiguration = DataBaseConfigurations.Find(m => m.DataBaseName == databaseName);
if (dataBaseConfiguration == null)
{
throw new ArgumentException($"数据库：{databaseName} 从库连接未配置!");
}
//随机一个从库连接
var index = Rd.Next(0, dataBaseConfiguration.SlaveDataBaseConnectionStrings.Count - 1);
return(dataBaseConfiguration.SlaveDataBaseConnectionStrings[index]);
}
public ReadOnlyMongoRepository(DataBaseConfigurations configurations) : base(configurations)
{
}
internal MigrationDbContext(DataBaseConfigurations configurations) : base(configurations)
{
}
public CommonDbContext(DataBaseConfigurations configurations) : base(configurations)
{
}
protected GenericMongoRepositoryBase(DataBaseConfigurations configurations)
{
Collection = new MongoClient(configurations.ConnectionString)
.GetDatabase(configurations.DataBaseName)
.GetCollection <T>(configurations.CollectionNameMap[typeof(T)]);
}
protected BaseDbContext(DataBaseConfigurations configurations)
{
_configurations = configurations;
}
protected BaseDbContext(DataBaseConfigurations configurations)
{
_connectionString = configurations.ConnectionString;
}
