ehm_dal::column_data::ColumnIndexList Class Reference

The ColumnIndexList class is a container/list of ehm_dal::column_data::Column
indexes from ehm_dal::column_data::ColumnData. It provides a convenient way of creating a list of various columns from one or more ehm_dal::column_data::ColumnData. In other words, it represents a list of column indexes from one or more tables. More...

#include <column_index_list.h>

Public Member Functions
	ColumnIndexList (std::shared_ptr< ehm_dal::tables::AbstractTable > table)
	Constructs a ColumnIndexList using all columns from table
void	add (std::shared_ptr< ehm_dal::tables::AbstractTable > table, const qint32 column_index)
	Adds the column_index from the table to the column list.
void	add (std::shared_ptr< ehm_dal::tables::AbstractTable > table, const std::vector< qint32 > &column_indexes)
	Adds all of the column_indexes from the table to the column list.
void	addAll (std::shared_ptr< ehm_dal::tables::AbstractTable > table)
	Adds all columns from the table to the column list.
const Column *	column (const qint32 column_index) const
	Returns a raw pointer to the Column with a column index of column_index.
std::optional< qint32 >	columnId (const qint32 column_index) const
	Returns the column id of the Column with a column index of column_index.
QModelIndex	index (const qint32 row, const qint32 column_index) const
	Returns a QModelIndex for row and column_index using the table to which column_index relates. This is equivalent to ehm_dal::tables::AbstractTable::index(row, column_index).
QModelIndex	index (const qint32 row, const qint32 column_index, const qint32 parent_row, const qint32 parent_column=0) const
	Returns a QModelIndex for row and column_index with a parent of parent_row and parent_column using the table to which column_index relates. This is equivalent to ehm_dal::tables::AbstractTable::index(row, column_index, QModelIndex(parent_row, parent_column)).
std::shared_ptr< ehm_dal::tables::AbstractTable >	table (const qint32 column_index) const
	Returns a shared_pointer to the AbstractTable relating tocolumn_index.
qint32	columnCount () const
	Returns the number of columns.
qint32	rowCount (const qint32 table_index=0) const
	Returns the number of rows for the selected table.

Detailed Description

The ColumnIndexList class is a container/list of ehm_dal::column_data::Column
indexes from ehm_dal::column_data::ColumnData. It provides a convenient way of creating a list of various columns from one or more ehm_dal::column_data::ColumnData. In other words, it represents a list of column indexes from one or more tables.

Constructor & Destructor Documentation

ColumnIndexList()

ehm_dal::column_data::ColumnIndexList::ColumnIndexList

(

std::shared_ptr< ehm_dal::tables::AbstractTable >

table

)

Constructs a ColumnIndexList using all columns from table

Parameters

table

Source table

Member Function Documentation

add() [1/2]

void ehm_dal::column_data::ColumnIndexList::add	(	std::shared_ptr< ehm_dal::tables::AbstractTable >	table,
		const qint32	column_index
	)

Adds the column_index from the table to the column list.

Parameters

table	to which the column relates.
column_index	to add to the list.

add() [2/2]

void ehm_dal::column_data::ColumnIndexList::add	(	std::shared_ptr< ehm_dal::tables::AbstractTable >	table,
		const std::vector< qint32 > &	column_indexes
	)

Adds all of the column_indexes from the table to the column list.

Parameters

table	to which the column relates.
column_indexes	to add to the list.

addAll()

void ehm_dal::column_data::ColumnIndexList::addAll

(

std::shared_ptr< ehm_dal::tables::AbstractTable >

table

)

Adds all columns from the table to the column list.

Parameters

table

to which the columns relate

column()

const Column * ehm_dal::column_data::ColumnIndexList::column

(

const qint32

column_index

)

const

Returns a raw pointer to the Column with a column index of column_index.

Parameters

column_index

column index.

columnCount()

qint32 ehm_dal::column_data::ColumnIndexList::columnCount

(

)

const

Returns the number of columns.

Returns

column count

columnId()

std::optional< qint32 > ehm_dal::column_data::ColumnIndexList::columnId

(

const qint32

column_index

)

const

Returns the column id of the Column with a column index of column_index.

Parameters

column_index

column index.

Returns

column id

index() [1/2]

QModelIndex ehm_dal::column_data::ColumnIndexList::index	(	const qint32	row,
		const qint32	column_index
	)		const

Returns a QModelIndex for row and column_index using the table to which column_index relates. This is equivalent to ehm_dal::tables::AbstractTable::index(row, column_index).

Parameters

row	Row of the table
column_index	Column index of the table

Returns

QModelIndex

index() [2/2]

QModelIndex ehm_dal::column_data::ColumnIndexList::index	(	const qint32	row,
		const qint32	column_index,
		const qint32	parent_row,
		const qint32	parent_column = 0
	)		const

Returns a QModelIndex for row and column_index with a parent of parent_row and parent_column using the table to which column_index relates. This is equivalent to ehm_dal::tables::AbstractTable::index(row, column_index, QModelIndex(parent_row, parent_column)).

Parameters

row	Row of the table
column_index	Column index of the table
parent_row	Parent row
parent_column	Parent column (typically 0)

Returns

QModelIndex

rowCount()

qint32 ehm_dal::column_data::ColumnIndexList::rowCount

(

const qint32

table_index = 0

)

const

Returns the number of rows for the selected table.

Returns

row count

table()

std::shared_ptr< ehm_dal::tables::AbstractTable > ehm_dal::column_data::ColumnIndexList::table

(

const qint32

column_index

)

const

Returns a shared_pointer to the AbstractTable relating tocolumn_index.

Parameters

column_index

column index

Returns

shared_ptr to AbstractTable