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clutch's Issues

Get rid of SqlClient dependency

In order to make your library more universal I suggest to get rid of the System.Data.SqlClient dependency. This can be done pretty simple by replacing SqlParameter class by more generic DbParameter in DbDbTracingExtensions.cs

I did it locally and now it works fine with any db.

EF5(4.4) ,Net4 code first approach with sybase throws "Unable to determine the provider name for connection of type 'iAnywhere.Data.SQLAnywhere.SAConnection'."

EF5(4.4) ,Net4 code first approach with sybase throws "Unable to determine the provider name for connection of type 'iAnywhere.Data.SQLAnywhere.SAConnection'."

I can log fine with SQL server connection. Also works with sybase model first Objectcontect class

But when I try the code first approach using the DbContext Class I get the error
"Unable to determine the provider name for connection of type 'iAnywhere.Data.SQLAnywhere.SAConnection'.""

I've tried all sort for days and days. Any clues would be helpful

Strong name sign assemblies

One cannot include the Clutch assemblies if the project is strong named. VS2010 throws the following error:

error CS1577: Assembly generation failed -- Referenced assembly 'Clutch.Diagnostics.EntityFramework' does not have a strong name

Enhancement request to strong name sign the Clutch assemblies.

Exception after upgrading to EF 6 

    System.InvalidCastException: Unable to cast object of type 'Clutch.Diagnostics.EntityFramework.DbTracingConnection' to type 'System.Data.SqlClient.SqlConnection'.
       at System.Data.SqlClient.SqlCommand.set_DbConnection(DbConnection value)
       at System.Data.Common.DbCommand.set_Connection(DbConnection value)
       at System.Data.Entity.Internal.InterceptableDbCommand.set_DbConnection(DbConnection value)
       at System.Data.Common.DbCommand.set_Connection(DbConnection value)
       at System.Data.Entity.Core.Common.Utils.CommandHelper.SetStoreProviderCommandState(EntityCommand entityCommand, EntityTransaction entityTransaction, DbCommand storeProviderCommand)
       at System.Data.Entity.Core.EntityClient.Internal.EntityCommandDefinition.PrepareEntityCommandBeforeExecution(EntityCommand entityCommand)
       at System.Data.Entity.Core.EntityClient.Internal.EntityCommandDefinition.ExecuteStoreCommands(EntityCommand entityCommand, CommandBehavior behavior)
       at System.Data.Entity.Core.Objects.Internal.ObjectQueryExecutionPlan.Execute[TResultType](ObjectContext context, ObjectParameterCollection parameterValues)
       at System.Data.Entity.Core.Objects.ObjectQuery`1.<>c__DisplayClassb.<GetResults>b__a()
       at System.Data.Entity.Core.Objects.ObjectContext.ExecuteInTransaction[T](Func`1 func, IDbExecutionStrategy executionStrategy, Boolean startLocalTransaction, Boolean releaseConnectionOnSuccess)
       at System.Data.Entity.Core.Objects.ObjectQuery`1.<>c__DisplayClassb.<GetResults>b__9()
       at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute[TResult](Func`1 operation)
       at System.Data.Entity.Core.Objects.ObjectQuery`1.GetResults(Nullable`1 forMergeOption)
       at System.Data.Entity.Core.Objects.ObjectQuery`1.<System.Collections.Generic.IEnumerable<T>.GetEnumerator>b__0()
       at System.Lazy`1.CreateValue()
       at System.Lazy`1.LazyInitValue()
       at System.Lazy`1.get_Value()
       at System.Data.Entity.Internal.LazyEnumerator`1.MoveNext()
       at System.Linq.Enumerable.Single[TSource](IEnumerable`1 source)
       at System.Data.Entity.Core.Objects.ELinq.ObjectQueryProvider.<GetElementFunction>b__3[TResult](IEnumerable`1 sequence)
       at System.Data.Entity.Core.Objects.ELinq.ObjectQueryProvider.ExecuteSingle[TResult](IEnumerable`1 query, Expression queryRoot)
       at System.Data.Entity.Core.Objects.ELinq.ObjectQueryProvider.System.Linq.IQueryProvider.Execute[TResult](Expression expression)
       at System.Data.Entity.Internal.Linq.DbQueryProvider.Execute[TResult](Expression expression)
       at System.Linq.Queryable.Any[TSource](IQueryable`1 source, Expression`1 predicate)
       at MyApp.App.CheckDatabaseConnection() in d:\Code\MyApp\src\MyApp\App.xaml.cs:line 218

Disposing System.Data.EntityClient.EntityDataReader leads to an exception

Issue

Disposing an instance of EntityDataReader class leads to rising InvalidOperationException: Reader timing has already finished .

Cause

The exception is thrown by the DbTracingContext.OnReaderFinished() method called second time from the DbTracingDataReader.Close().

In turn, DbTracingDataReader.Close() method is called twice due to the implementation of the Dispose() method in the EntityDataReader class (see the sources):

162        public override void Close()
163        {
164            if (this._command != null)
165            {
166               this._storeDataReader.Close();
167                
168               // other code
176            }
177        }
178 
183        protected override void Dispose(bool disposing)
184        {
185            base.Dispose(disposing);
186            if (disposing)
187            {
188                this._storeDataReader.Dispose();
189            }
190        }

this._storeDataReader field store an instance of the DbTracingDataReader and it is disposing twice in the lines 166 and 188. And the base Dispose() method in the line 185 internally calls virtual Close() method.

Solution

DbTracingDataReader class ьгые support multiple calls to the Close() method.

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