KexiDB::AlterTableHandler::RemoveFieldAction Class Reference

#include <alter.h>

Inheritance diagram for KexiDB::AlterTableHandler::RemoveFieldAction:

Public Member Functions
	RemoveFieldAction (const TQString &fieldName, int uid)
	RemoveFieldAction (bool)
virtual TQString	debugString (const DebugOptions &debugOptions=DebugOptions())
virtual void	simplifyActions (ActionDictDict &fieldActions)
virtual tristate	updateTableSchema (TableSchema &table, Field *field, TQMap< TQString, TQString > &fieldMap)
Public Member Functions inherited from KexiDB::AlterTableHandler::FieldActionBase
	FieldActionBase (const TQString &fieldName, int uid)
	FieldActionBase (bool)
TQString	fieldName () const
int	uid () const
void	setFieldName (const TQString &fieldName)
Public Member Functions inherited from KexiDB::AlterTableHandler::ActionBase
	ActionBase (bool null=false)
ChangeFieldPropertyAction &	toChangeFieldPropertyAction ()
RemoveFieldAction &	toRemoveFieldAction ()
InsertFieldAction &	toInsertFieldAction ()
MoveFieldPositionAction &	toMoveFieldPositionAction ()
bool	isNull () const
void	debug (const DebugOptions &debugOptions=DebugOptions())

Protected Member Functions
virtual void	updateAlteringRequirements ()
virtual tristate	execute (Connection &conn, TableSchema &table)
Protected Member Functions inherited from KexiDB::AlterTableHandler::ActionBase
void	setAlteringRequirements (int alteringRequirements)
int	alteringRequirements () const
virtual bool	shouldBeRemoved (ActionDictDict &fieldActions)

Additional Inherited Members
Protected Attributes inherited from KexiDB::AlterTableHandler::FieldActionBase
int	m_fieldUID

Detailed Description

Defines an action for removing a single table field.

Definition at line 301 of file alter.h.

Constructor & Destructor Documentation

RemoveFieldAction() [1/2]

AlterTableHandler::RemoveFieldAction::RemoveFieldAction	(	const TQString &	fieldName,
		int	uid
	)

Definition at line 474 of file alter.cpp.

RemoveFieldAction() [2/2]

AlterTableHandler::RemoveFieldAction::RemoveFieldAction

(

bool

)

Definition at line 479 of file alter.cpp.

~RemoveFieldAction()

AlterTableHandler::RemoveFieldAction::~RemoveFieldAction ( )

virtual

Definition at line 484 of file alter.cpp.

Member Function Documentation

debugString()

TQString AlterTableHandler::RemoveFieldAction::debugString ( const DebugOptions &  debugOptions = DebugOptions() )

virtual

Reimplemented from KexiDB::AlterTableHandler::ActionBase.

Definition at line 496 of file alter.cpp.

execute()

tristate AlterTableHandler::RemoveFieldAction::execute ( Connection &  conn, TableSchema &  table  )

protectedvirtual

Performs physical execution of this action.

Todo:

Reimplemented from KexiDB::AlterTableHandler::ActionBase.

Definition at line 529 of file alter.cpp.

simplifyActions()

void AlterTableHandler::RemoveFieldAction::simplifyActions ( ActionDictDict &  fieldActions )

virtual

Legend: A,B==objects, P==property, [....]==action, (..,..,..) group of actions, <...> internal operation. Preconditions: we assume there cannot be such case encountered: ([remove A], [do something related on A]) (except for [remove A], [insert A]) General Case: it's safe to always insert a [remove A] action.

Todo:

not checked

Reimplemented from KexiDB::AlterTableHandler::ActionBase.

Definition at line 510 of file alter.cpp.

updateAlteringRequirements()

void AlterTableHandler::RemoveFieldAction::updateAlteringRequirements ( )

protectedvirtual

Todo:

sometimes add DataConversionRequired (e.g. when relationships require removing orphaned records) ?

Todo:

Reimplemented from KexiDB::AlterTableHandler::ActionBase.

Definition at line 488 of file alter.cpp.

updateTableSchema()

tristate AlterTableHandler::RemoveFieldAction::updateTableSchema ( TableSchema &  table, Field *  field, TQMap< TQString, TQString > &  fieldMap  )

virtual

Reimplemented from KexiDB::AlterTableHandler::ActionBase.

Definition at line 521 of file alter.cpp.

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The documentation for this class was generated from the following files:

• alter.h
• alter.cpp