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ADODB2_postgres Class Reference

Inheritance diagram for ADODB2_postgres:[legend]Collaboration diagram for ADODB2_postgres:[legend]List of all members.

Public Member Functions
	MetaType ($t, $len=-1, $fieldobj=false)
	ActualType ($meta)
	AddColumnSQL ($tabname, $flds)
	AlterColumnSQL ($tabname, $flds, $tableflds='', $tableoptions='')
	DropColumnSQL ($tabname, $flds, $tableflds='', $tableoptions='')
	_recreate_copy_table ($tabname, $dropflds, $tableflds, $tableoptions='')
	DropTableSQL ($tabname)
	_CreateSuffix ($fname, &$ftype, $fnotnull, $fdefault, $fautoinc, $fconstraint)
	_DropAutoIncrement ($tabname)
	_IndexSQL ($idxname, $tabname, $flds, $idxoptions)
	_GetSize ($ftype, $ty, $fsize, $fprec)
Public Attributes
	$databaseType = 'postgres'
	$seqField = false
	$seqPrefix = 'SEQ_'
	$addCol = ' ADD COLUMN'
	$quote = '"'
	$renameTable = 'ALTER TABLE %s RENAME TO %s'
	$dropTable = 'DROP TABLE %s CASCADE'

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Detailed Description

Definition at line 16 of file datadict-postgres.inc.php.

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Member Function Documentation

ADODB2_postgres::AddColumnSQL	(	$	tabname,
		$	flds
	)

Adding a new Column

reimplementation of the default function as postgres does NOT allow to set the default in the same statement

Parameters:

	string	$tabname table-name
	string	$flds column-names and types for the changed columns

Returns:

array with SQL strings

Reimplemented from ADODB_DataDict.

Definition at line 128 of file datadict-postgres.inc.php.

References ADODB_DataDict::_GenFields(), and ADODB_DataDict::TableName().

ADODB2_postgres::AlterColumnSQL	(	$	tabname,
		$	flds,
		$	tableflds = '',
		$	tableoptions = ''
	)

Change the definition of one column

Postgres can't do that on it's own, you need to supply the complete defintion of the new table, to allow, recreating the table and copying the content over to the new table

Parameters:

	string	$tabname table-name
	string	$flds column-name and type for the changed column
	string	$tableflds complete defintion of the new table, eg. for postgres, default ''
	array/	$tableoptions options for the new table see CreateTableSQL, default ''

Returns:

array with SQL strings

Reimplemented from ADODB_DataDict.

Definition at line 165 of file datadict-postgres.inc.php.

References _recreate_copy_table(), and ADOConnection::outp().

ADODB2_postgres::DropColumnSQL	(	$	tabname,
		$	flds,
		$	tableflds = '',
		$	tableoptions = ''
	)

Drop one column

Postgres < 7.3 can't do that on it's own, you need to supply the complete defintion of the new table, to allow, recreating the table and copying the content over to the new table

Parameters:

	string	$tabname table-name
	string	$flds column-name and type for the changed column
	string	$tableflds complete defintion of the new table, eg. for postgres, default ''
	array/	$tableoptions options for the new table see CreateTableSQL, default ''

Returns:

array with SQL strings

Reimplemented from ADODB_DataDict.

Definition at line 185 of file datadict-postgres.inc.php.

References _recreate_copy_table(), ADODB_DataDict::DropColumnSQL(), and ADOConnection::outp().

ADODB2_postgres::_recreate_copy_table	(	$	tabname,
		$	dropflds,
		$	tableflds,
		$	tableoptions = ''
	)

Save the content into a temp. table, drop and recreate the original table and copy the content back in

We also take care to set the values of the sequenz and recreate the indexes. All this is done in a transaction, to not loose the content of the table, if something went wrong!

Definition at line 210 of file datadict-postgres.inc.php.

References ADODB_DataDict::CreateIndexSQL(), ADODB_DataDict::CreateTableSQL(), DropTableSQL(), ADODB_DataDict::MetaColumns(), and ADODB_DataDict::MetaIndexes().

Referenced by AlterColumnSQL(), and DropColumnSQL().

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

• typo3_src-4.1/typo3/sysext/adodb/adodb/datadict/datadict-postgres.inc.php

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