| Category | Zend |
| Package | Zend_Db |
| Subpackage | Adapter |
| Copyright | Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com) |
| License | http://framework.zend.com/license/new-bsd New BSD License |
Class Zend_Db_Adapter_Pdo_Pgsql
Defined in line 39 of file Db/Adapter/Pdo/Pgsql.php.
Class for connecting to PostgreSQL databases and performing common operations.
Overview
Instance fields$_numericDataTypes
$_pdoType
Inherited from Zend_Db_Adapter_Pdo_Abstract : $_defaultStmtClass
Instance methods_connect()
describeTable()
lastInsertId()
lastSequenceId()
limit()
listTables()
nextSequenceId()
Inherited from Zend_Db_Adapter_Pdo_Abstract : _beginTransaction() _commit() _dsn() _quote() _rollBack() closeConnection() exec() getServerVersion() isConnected() prepare() query() setFetchMode() supportsParameters()
Inherited from Zend_Db_Adapter_Abstract : __construct() __sleep() __wakeup() _checkRequiredOptions() _quoteIdentifier() _quoteIdentifierAs() _whereExpr() beginTransaction() commit() delete() fetchAll() fetchAssoc() fetchCol() fetchOne() fetchPairs() fetchRow() foldCase() getConfig() getConnection() getFetchMode() getProfiler() getQuoteIdentifierSymbol() getStatementClass() insert() quote() quoteColumnAs() quoteIdentifier() quoteInto() quoteTableAs() rollBack() select() setProfiler() setStatementClass() update()
Summary
Instance fields
| # $_numericDataTypes | Keys are UPPERCASE SQL datatypes or the constants |
| # $_pdoType | PDO type |
Instance methods
| # _connect() | Creates a PDO object and connects to the database |
| + describeTable() | Returns the column descriptions for a table. |
| + lastInsertId() | Gets the last ID generated automatically by an IDENTITY/AUTOINCREMENT column. |
| + lastSequenceId() | Return the most recent value from the specified sequence in the database. |
| + limit() | Adds an adapter-specific LIMIT clause to the SELECT statement |
| + listTables() | Returns a list of the tables in the database |
| + nextSequenceId() | Generate a new value from the specified sequence in the database, and return it. |
Details
Instance fields
protected $_numericDataTypes = array(
Zend_Db::INT_TYPE => Zend_Db::INT_TYPE,
Zend_Db::BIGINT_TYPE => Zend_Db::BIGINT_TYPE,
Zend_Db::FLOAT_TYPE => Zend_Db::FLOAT_TYPE,
'INTEGER' => Zend_Db::INT_TYPE,
'SERIAL' => Zend_Db::INT_TYPE,
'SMALLINT' => Zend_Db::INT_TYPE,
'BIGINT' => Zend_Db::BIGINT_TYPE,
'BIGSERIAL' => Zend_Db::BIGINT_TYPE,
'DECIMAL' => Zend_Db::FLOAT_TYPE,
'DOUBLE PRECISION' => Zend_Db::FLOAT_TYPE,
'NUMERIC' => Zend_Db::FLOAT_TYPE,
'REAL' => Zend_Db::FLOAT_TYPE
)Keys are UPPERCASE SQL datatypes or the constants
Values are:
0 = 32-bit integer
1 = 64-bit integer
2 = float or decimal
Zend_Db::INT_TYPE, Zend_Db::BIGINT_TYPE, or Zend_Db::FLOAT_TYPE.Values are:
0 = 32-bit integer
1 = 64-bit integer
2 = float or decimal
Var
array Associative array of datatypes to values 0, 1, or 2.
Defined in Db/Adapter/Pdo/Pgsql.php, line 60
Instance methods
protected function _connect( |
|
Overrides Zend_Db_Adapter_Pdo_Abstract->_connect()
Defined in Db/Adapter/Pdo/Pgsql.php, line 81
public function describeTable( |
$tableName)
|
Returns the column descriptions for a table.
The return value is an associative array keyed by the column name,
as returned by the RDBMS.
The value of each array element is an associative array
with the following keys:
SCHEMA_NAME => string; name of database or schema
TABLE_NAME => string;
COLUMN_NAME => string; column name
COLUMN_POSITION => number; ordinal position of column in table
DATA_TYPE => string; SQL datatype name of column
DEFAULT => string; default expression of column, null if none
NULLABLE => boolean; true if column can have nulls
LENGTH => number; length of CHAR/VARCHAR
SCALE => number; scale of NUMERIC/DECIMAL
PRECISION => number; precision of NUMERIC/DECIMAL
UNSIGNED => boolean; unsigned property of an integer type
PRIMARY => boolean; true if column is part of the primary key
PRIMARY_POSITION => integer; position of column in primary key
IDENTITY => integer; true if column is auto-generated with unique values
Parameters
The return value is an associative array keyed by the column name,
as returned by the RDBMS.
The value of each array element is an associative array
with the following keys:
SCHEMA_NAME => string; name of database or schema
TABLE_NAME => string;
COLUMN_NAME => string; column name
COLUMN_POSITION => number; ordinal position of column in table
DATA_TYPE => string; SQL datatype name of column
DEFAULT => string; default expression of column, null if none
NULLABLE => boolean; true if column can have nulls
LENGTH => number; length of CHAR/VARCHAR
SCALE => number; scale of NUMERIC/DECIMAL
PRECISION => number; precision of NUMERIC/DECIMAL
UNSIGNED => boolean; unsigned property of an integer type
PRIMARY => boolean; true if column is part of the primary key
PRIMARY_POSITION => integer; position of column in primary key
IDENTITY => integer; true if column is auto-generated with unique values
string $tableName |
|
string $schemaName |
OPTIONAL |
Returns
array
To do
Discover integer unsigned property.
Defined in Db/Adapter/Pdo/Pgsql.php, line 149
public function lastInsertId( |
$tableName = null)
|
Gets the last ID generated automatically by an IDENTITY/AUTOINCREMENT column.
As a convention, on RDBMS brands that support sequences
(e.g. Oracle, PostgreSQL, DB2), this method forms the name of a sequence
from the arguments and returns the last id generated by that sequence.
On RDBMS brands that support IDENTITY/AUTOINCREMENT columns, this method
returns the last value generated for such a column, and the table name
argument is disregarded.
Parameters
As a convention, on RDBMS brands that support sequences
(e.g. Oracle, PostgreSQL, DB2), this method forms the name of a sequence
from the arguments and returns the last id generated by that sequence.
On RDBMS brands that support IDENTITY/AUTOINCREMENT columns, this method
returns the last value generated for such a column, and the table name
argument is disregarded.
string $tableName |
OPTIONAL Name of table. |
string $primaryKey |
OPTIONAL Name of primary key column. |
Returns
string
Defined in Db/Adapter/Pdo/Pgsql.php, line 313
public function lastSequenceId( |
$sequenceName)
|
Return the most recent value from the specified sequence in the database.
This is supported only on RDBMS brands that support sequences
(e.g. Oracle, PostgreSQL, DB2). Other RDBMS brands return null.
Parameters
This is supported only on RDBMS brands that support sequences
(e.g. Oracle, PostgreSQL, DB2). Other RDBMS brands return null.
string $sequenceName |
Returns
string
Defined in Db/Adapter/Pdo/Pgsql.php, line 277
public function limit( |
$sql)
|
Adds an adapter-specific LIMIT clause to the SELECT statement.
Parameters
string $sql |
|
integer $count |
|
integer $offset |
OPTIONAL |
Returns
string
Overrides Zend_Db_Adapter_Abstract->limit()
Defined in Db/Adapter/Pdo/Pgsql.php, line 241
public function listTables( |
|
Returns a list of the tables in the database.
Returns
array
Overrides Zend_Db_Adapter_Abstract->listTables()
Defined in Db/Adapter/Pdo/Pgsql.php, line 100
public function nextSequenceId( |
$sequenceName)
|
Generate a new value from the specified sequence in the database, and return it.
This is supported only on RDBMS brands that support sequences
(e.g. Oracle, PostgreSQL, DB2). Other RDBMS brands return null.
Parameters
This is supported only on RDBMS brands that support sequences
(e.g. Oracle, PostgreSQL, DB2). Other RDBMS brands return null.
string $sequenceName |
Returns
string
Defined in Db/Adapter/Pdo/Pgsql.php, line 292