KDbQueryColumnInfo Class Reference

#include <KDbQueryColumnInfo.h>

Public Types
typedef QList< KDbQueryColumnInfo * >	List
typedef QList< KDbQueryColumnInfo * >::ConstIterator	ListIterator
typedef QVector< KDbQueryColumnInfo * >	Vector

Public Member Functions
	KDbQueryColumnInfo (KDbField *f, const QString &alias, bool visible, KDbQueryColumnInfo *foreignColumn=nullptr)
QString	alias () const
QString	aliasOrName () const
QString	captionOrAliasOrName () const
KDbConnection *	connection ()
const KDbConnection *	connection () const
KDbField *	field ()
const KDbField *	field () const
KDbQueryColumnInfo *	foreignColumn ()
const KDbQueryColumnInfo *	foreignColumn () const
int	indexForVisibleLookupValue () const
bool	isVisible () const
const KDbQuerySchema *	querySchema () const
void	setAlias (const QString &alias)
void	setField (KDbField *field)
void	setIndexForVisibleLookupValue (int index)
void	setVisible (bool set)

Detailed Description

Helper class that assigns additional information for the column in a query.

The following information is assigned:

• alias
• visibility KDbQueryColumnInfo::Vector is created and returned by KDbQuerySchema::fieldsExpanded(). It is efficiently cached within the KDbQuerySchema object.

Definition at line 40 of file KDbQueryColumnInfo.h.

Member Typedef Documentation

List

typedef QList<KDbQueryColumnInfo*> KDbQueryColumnInfo::List

Definition at line 44 of file KDbQueryColumnInfo.h.

ListIterator

typedef QList<KDbQueryColumnInfo*>::ConstIterator KDbQueryColumnInfo::ListIterator

Definition at line 45 of file KDbQueryColumnInfo.h.

Vector

typedef QVector<KDbQueryColumnInfo*> KDbQueryColumnInfo::Vector

Definition at line 43 of file KDbQueryColumnInfo.h.

Constructor & Destructor Documentation

KDbQueryColumnInfo()

KDbQueryColumnInfo::KDbQueryColumnInfo	(	KDbField *	f,
		const QString &	alias,
		bool	visible,
		KDbQueryColumnInfo *	foreignColumn = nullptr )

Definition at line 27 of file KDbQueryColumnInfo.cpp.

~KDbQueryColumnInfo()

KDbQueryColumnInfo::~KDbQueryColumnInfo

(

)

Definition at line 33 of file KDbQueryColumnInfo.cpp.

Member Function Documentation

alias()

QString KDbQueryColumnInfo::alias

(

)

const

Returns

alias for this column

Definition at line 53 of file KDbQueryColumnInfo.cpp.

aliasOrName()

QString KDbQueryColumnInfo::aliasOrName

(

)

const

Returns

alias if it is not empty, field's name otherwise.

Definition at line 63 of file KDbQueryColumnInfo.cpp.

captionOrAliasOrName()

QString KDbQueryColumnInfo::captionOrAliasOrName

(

)

const

Returns

field's caption if it is not empty, field's alias otherwise. If alias is also empty - returns field's name.

Definition at line 68 of file KDbQueryColumnInfo.cpp.

connection() [1/2]

KDbConnection * KDbQueryColumnInfo::connection

(

)

Returns connection for this column.

Since

3.2

Definition at line 108 of file KDbQueryColumnInfo.cpp.

connection() [2/2]

const KDbConnection * KDbQueryColumnInfo::connection

(

)

const

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Since

3.2

Definition at line 113 of file KDbQueryColumnInfo.cpp.

field() [1/2]

KDbField * KDbQueryColumnInfo::field

(

)

Returns

field for this column

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Definition at line 38 of file KDbQueryColumnInfo.cpp.

field() [2/2]

const KDbField * KDbQueryColumnInfo::field

(

)

const

Definition at line 43 of file KDbQueryColumnInfo.cpp.

foreignColumn() [1/2]

KDbQueryColumnInfo * KDbQueryColumnInfo::foreignColumn

(

)

Returns

non-nullptr if this column is a visible column for other column

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Definition at line 93 of file KDbQueryColumnInfo.cpp.

foreignColumn() [2/2]

const KDbQueryColumnInfo * KDbQueryColumnInfo::foreignColumn

(

)

const

Definition at line 98 of file KDbQueryColumnInfo.cpp.

indexForVisibleLookupValue()

int KDbQueryColumnInfo::indexForVisibleLookupValue

(

)

const

Returns

index of column with visible lookup value within the 'fields expanded' vector. -1 means no visible lookup value is available because there is no lookup for the column defined. Cached for efficiency as we use this information frequently.

See also

KDbLookupFieldSchema::visibleVolumn()

Definition at line 83 of file KDbQueryColumnInfo.cpp.

isVisible()

bool KDbQueryColumnInfo::isVisible

(

)

const

Returns

true is this column is visible

Definition at line 73 of file KDbQueryColumnInfo.cpp.

querySchema()

const KDbQuerySchema * KDbQueryColumnInfo::querySchema

(

)

const

Returns query schema for this column.

Since

3.2

Definition at line 103 of file KDbQueryColumnInfo.cpp.

setAlias()

void KDbQueryColumnInfo::setAlias

(

const QString &

alias

)

Sets the alias.

Definition at line 58 of file KDbQueryColumnInfo.cpp.

setField()

void KDbQueryColumnInfo::setField

(

KDbField *

field

)

Sets the field.

Definition at line 48 of file KDbQueryColumnInfo.cpp.

setIndexForVisibleLookupValue()

void KDbQueryColumnInfo::setIndexForVisibleLookupValue

(

int

index

)

Sets index of column with visible lookup value within the 'fields expanded' vector.

Definition at line 88 of file KDbQueryColumnInfo.cpp.

setVisible()

void KDbQueryColumnInfo::setVisible

(

bool

set

)

Sets the visible flag.

Definition at line 78 of file KDbQueryColumnInfo.cpp.

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

• KDbQueryColumnInfo.h
• KDbQueryColumnInfo.cpp