57 lines
2.9 KiB
C#
57 lines
2.9 KiB
C#
using System.Data.SqlClient;
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namespace AdvertisingProfitControlData
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{
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public class Restore
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{
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public string ErrorMessage = string.Empty;
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public bool SingleFileRestore(string databaseFilePath, string defaultServerName)
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{
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var sqlConStrBuilder = new SqlConnectionStringBuilder(AdvertisingProfitControlDbContext.ConnectionString);
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var masterConnection = @"data source=" + defaultServerName + @";integrated security=True;MultipleActiveResultSets=True;App=EntityFramework";
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try
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{
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using (var conn = new SqlConnection(masterConnection))
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{
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var db = new AdvertisingProfitControlDbContext();
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//Drop the database to make sure it can be recreated and restored (necessary since the database MUST be on line for its file to be wiped from disk).
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db.Database.Delete();
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var query =
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@"BEGIN TRY
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DECLARE @DefaultDataPath varchar(max)
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DECLARE @DefaultLogPath varchar(max)
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SELECT @DefaultDataPath = CONVERT(varchar(max),SERVERPROPERTY('INSTANCEDEFAULTDATAPATH'))
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SELECT @DefaultLogPath = CONVERT(varchar(max),SERVERPROPERTY('INSTANCEDEFAULTLOGPATH'))
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SELECT @DefaultDataPath = CONCAT(@DefaultDataPath, N'" + sqlConStrBuilder.InitialCatalog + @".mdf')
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SELECT @DefaultLogPath = CONCAT(@DefaultLogPath, N'" + sqlConStrBuilder.InitialCatalog + @".ldf')
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IF db_id(N'" + sqlConStrBuilder.InitialCatalog + @"') IS NOT NULL
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BEGIN
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CREATE DATABASE " + sqlConStrBuilder.InitialCatalog + @"
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END
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RESTORE DATABASE " + sqlConStrBuilder.InitialCatalog + @" FROM DISK ='" + databaseFilePath + @"' WITH CHECKSUM, REPLACE,
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MOVE '" + sqlConStrBuilder.InitialCatalog + @"' TO @DefaultDataPath,
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MOVE '" + sqlConStrBuilder.InitialCatalog + @"_log' TO @DefaultLogPath
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END TRY
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BEGIN CATCH
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DECLARE @Error varchar(max)
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SELECT @Error = ERROR_MESSAGE()
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RAISERROR(@Error, 11, 1)
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END CATCH";
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//TODO: Verify that the database is good with DBCC command.
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conn.Open();
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var restoreCmd = new SqlCommand(query, conn);
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restoreCmd.ExecuteNonQuery();
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conn.Close();
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return true;
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}
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}
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catch (SqlException e)
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{
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ErrorMessage = e.Message;
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return false;
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}
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}
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}
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}
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