DBConnectionTransactionScopeImpl Struct Reference

Inheritance diagram for DBConnectionTransactionScopeImpl:

Collaboration diagram for DBConnectionTransactionScopeImpl:

Public Member Functions
	DBConnectionTransactionScopeImpl (DBConnection &connection)
	~DBConnectionTransactionScopeImpl () override
bool	TransactionStart (const wxString &name) override
bool	TransactionCommit (const wxString &name) override
bool	TransactionRollback (const wxString &name) override
Public Member Functions inherited from TransactionScopeImpl
virtual	~TransactionScopeImpl ()
virtual bool	TransactionStart (const wxString &name)=0
virtual bool	TransactionCommit (const wxString &name)=0
virtual bool	TransactionRollback (const wxString &name)=0

Public Attributes
DBConnection &	mConnection

Detailed Description

Definition at line 603 of file DBConnection.cpp.

Constructor & Destructor Documentation

DBConnectionTransactionScopeImpl()

DBConnectionTransactionScopeImpl::DBConnectionTransactionScopeImpl ( DBConnection &  connection )

inlineexplicit

Definition at line 604 of file DBConnection.cpp.

      : mConnection{ connection } {}

~DBConnectionTransactionScopeImpl()

DBConnectionTransactionScopeImpl::~DBConnectionTransactionScopeImpl ( )

overridedefault

Member Function Documentation

TransactionCommit()

bool DBConnectionTransactionScopeImpl::TransactionCommit ( const wxString &  name )

overridevirtual

Returns

success

Implements TransactionScopeImpl.

Definition at line 650 of file DBConnection.cpp.

{
   char *errmsg = nullptr;
 
   int rc = sqlite3_exec(mConnection.DB(),
                         wxT("RELEASE ") + name + wxT(";"),
                         nullptr,
                         nullptr,
                         &errmsg);
 
   if (errmsg)
   {
      ADD_EXCEPTION_CONTEXT("sqlite3.rc", std::to_string(rc));
      ADD_EXCEPTION_CONTEXT("sqlite3.context", "TransactionScope::TransactionCommit");
 
      mConnection.SetDBError(
         XO("Failed to release savepoint:\n\n%s").Format(name)
      );
      sqlite3_free(errmsg);
   }
 
   return rc == SQLITE_OK;
}

References ADD_EXCEPTION_CONTEXT, DBConnection::DB(), mConnection, name, DBConnection::SetDBError(), wxT(), and XO().

Referenced by TransactionRollback().

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TransactionRollback()

bool DBConnectionTransactionScopeImpl::TransactionRollback ( const wxString &  name )

overridevirtual

Returns

success

Implements TransactionScopeImpl.

Definition at line 674 of file DBConnection.cpp.

{
   char *errmsg = nullptr;
 
   int rc = sqlite3_exec(mConnection.DB(),
                         wxT("ROLLBACK TO ") + name + wxT(";"),
                         nullptr,
                         nullptr,
                         &errmsg);
 
   if (errmsg)
   {
      ADD_EXCEPTION_CONTEXT("sqlite3.rc", std::to_string(rc));
      ADD_EXCEPTION_CONTEXT("sqlite3.context", "TransactionScope::TransactionRollback");
      mConnection.SetDBError(
         XO("Failed to release savepoint:\n\n%s").Format(name)
      );
      sqlite3_free(errmsg);
   }
 
   if (rc != SQLITE_OK)
      return false;
 
   // Rollback AND REMOVE the transaction
   // -- must do both; rolling back a savepoint only rewinds it
   // without removing it, unlike the ROLLBACK command
 
   return TransactionCommit(name);
}

References ADD_EXCEPTION_CONTEXT, DBConnection::DB(), mConnection, name, DBConnection::SetDBError(), TransactionCommit(), wxT(), and XO().

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TransactionStart()

bool DBConnectionTransactionScopeImpl::TransactionStart ( const wxString &  name )

overridevirtual

Returns

success; if false, TransactionScope ctor throws

Implements TransactionScopeImpl.

Definition at line 626 of file DBConnection.cpp.

{
   char *errmsg = nullptr;
 
   int rc = sqlite3_exec(mConnection.DB(),
                         wxT("SAVEPOINT ") + name + wxT(";"),
                         nullptr,
                         nullptr,
                         &errmsg);
 
   if (errmsg)
   {
      ADD_EXCEPTION_CONTEXT("sqlite3.rc", std::to_string(rc));
      ADD_EXCEPTION_CONTEXT("sqlite3.context", "TransactionScope::TransactionStart");
 
      mConnection.SetDBError(
         XO("Failed to create savepoint:\n\n%s").Format(name)
      );
      sqlite3_free(errmsg);
   }
 
   return rc == SQLITE_OK;
}

References ADD_EXCEPTION_CONTEXT, DBConnection::DB(), mConnection, name, DBConnection::SetDBError(), wxT(), and XO().

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Member Data Documentation

mConnection

DBConnection& DBConnectionTransactionScopeImpl::mConnection

Definition at line 611 of file DBConnection.cpp.

Referenced by TransactionCommit(), TransactionRollback(), and TransactionStart().

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The documentation for this struct was generated from the following file:

• DBConnection.cpp