SearchTable Of ContentsPrevious topicClass Phalcon\Db\Adapter\Pdo\Mysql Next topicClass Phalcon\Db\Adapter\Pdo\Sqlite This Page |
Class Phalcon\Db\Adapter\Pdo\Postgresql¶extends Phalcon\Db\Adapter\Pdo implements Phalcon\Events\EventsAwareInterface, Phalcon\Db\AdapterInterface Specific functions for the Postgresql database system <?php
$config = array(
"host" => "192.168.0.11",
"dbname" => "blog",
"username" => "postgres",
"password" => ""
);
$connection = new Phalcon\Db\Adapter\Pdo\Postgresql($config);
Methods¶public boolean connect (array $descriptor) This method is automatically called in Phalcon\Db\Adapter\Pdo constructor. Call it when you need to restore a database connection. Support set search_path after connectted if schema is specified in config. public Phalcon\Db\Column [] describeColumns (string $table, string $schema) Returns an array of Phalcon\Db\Column objects describing a table <code>print_r($connection->describeColumns(“posts”)); ?> public Phalcon\Db\RawValue getDefaultIdValue () Return the default identity value to insert in an identity column public boolean supportSequences () Check whether the database system requires a sequence to produce auto-numeric values public __construct (array $descriptor) inherited from Phalcon\Db\Adapter\Pdo Constructor for Phalcon\Db\Adapter\Pdo public PDOStatement executePrepared (PDOStatement $statement, array $placeholders, array $dataTypes) inherited from Phalcon\Db\Adapter\Pdo Executes a prepared statement binding public Phalcon\Db\ResultInterface query (string $sqlStatement, array $bindParams, array $bindTypes) inherited from Phalcon\Db\Adapter\Pdo Sends SQL statements to the database server returning the success state. Use this method only when the SQL statement sent to the server is returning rows <?php
//Querying data
$resultset = $connection->query(“SELECT * FROM robots WHERE type=’mechanical’”); $resultset = $connection->query(“SELECT * FROM robots WHERE type=?”, array(“mechanical”)); public boolean execute (string $sqlStatement, unknown $bindParams, unknown $bindTypes) inherited from Phalcon\Db\Adapter\Pdo Sends SQL statements to the database server returning the success state. Use this method only when the SQL statement sent to the server don’t return any row <?php
//Inserting data
$success = $connection->execute("INSERT INTO robots VALUES (1, 'Astro Boy')");
$success = $connection->execute("INSERT INTO robots VALUES (?, ?)", array(1, 'Astro Boy'));
public int affectedRows () inherited from Phalcon\Db\Adapter\Pdo Returns the number of affected rows by the last INSERT/UPDATE/DELETE reported by the database system <?php
$connection->query("DELETE FROM robots");
echo $connection->affectedRows(), ' were deleted';
public boolean close () inherited from Phalcon\Db\Adapter\Pdo Closes active connection returning success. Phalcon automatically closes and destroys active connections within Phalcon\Db\Pool public string escapeIdentifier (string $identifier) inherited from Phalcon\Db\Adapter\Pdo Escapes a column/table/schema name public string escapeString (string $str) inherited from Phalcon\Db\Adapter\Pdo Escapes a value to avoid SQL injections public bindParams (unknown $sqlStatement, array $params) inherited from Phalcon\Db\Adapter\Pdo Bind params to a SQL statement public array convertBoundParams (string $sql, array $params) inherited from Phalcon\Db\Adapter\Pdo Converts bound params such as :name: or ?1 into PDO bind params ? public int lastInsertId (string $sequenceName) inherited from Phalcon\Db\Adapter\Pdo Returns insert id for the auto_increment column inserted in the last SQL statement public boolean begin () inherited from Phalcon\Db\Adapter\Pdo Starts a transaction in the connection public boolean rollback () inherited from Phalcon\Db\Adapter\Pdo Rollbacks the active transaction in the connection public boolean commit () inherited from Phalcon\Db\Adapter\Pdo Commits the active transaction in the connection public boolean isUnderTransaction () inherited from Phalcon\Db\Adapter\Pdo Checks whether connection is under database transaction public PDO getInternalHandler () inherited from Phalcon\Db\Adapter\Pdo Return internal PDO handler public Phalcon\Db\Index [] describeIndexes (string $table, string $schema) inherited from Phalcon\Db\Adapter\Pdo Lists table indexes public Phalcon\Db\Reference [] describeReferences (string $table, string $schema) inherited from Phalcon\Db\Adapter\Pdo Lists table references public array tableOptions (string $tableName, string $schemaName) inherited from Phalcon\Db\Adapter\Pdo Gets creation options from a table public setEventsManager (Phalcon\Events\ManagerInterface $eventsManager) inherited from Phalcon\Db\Adapter Sets the event manager public Phalcon\Events\ManagerInterface getEventsManager () inherited from Phalcon\Db\Adapter Returns the internal event manager public array fetchOne (string $sqlQuery, int $fetchMode, array $bindParams, array $bindTypes) inherited from Phalcon\Db\Adapter Returns the first row in a SQL query result <?php
//Getting first robot
$robot = $connection->fecthOne("SELECT * FROM robots");
print_r($robot);
//Getting first robot with associative indexes only
$robot = $connection->fecthOne("SELECT * FROM robots", Phalcon\Db::FETCH_ASSOC);
print_r($robot);
public array fetchAll (string $sqlQuery, int $fetchMode, array $bindParams, array $bindTypes) inherited from Phalcon\Db\Adapter Dumps the complete result of a query into an array <?php
//Getting all robots
$robots = $connection->fetchAll("SELECT * FROM robots");
foreach($robots as $robot){
print_r($robot);
}
//Getting all robots with associative indexes only
$robots = $connection->fetchAll("SELECT * FROM robots", Phalcon\Db::FETCH_ASSOC);
foreach($robots as $robot){
print_r($robot);
}
public boolean insert (string $table, array $values, array $fields, array $dataTypes) inherited from Phalcon\Db\Adapter Inserts data into a table using custom RBDM SQL syntax <?php
//Inserting a new robot
$success = $connection->insert(
"robots",
array("Astro Boy", 1952),
array("name", "year")
);
//Next SQL sentence is sent to the database system
INSERT INTO `robots` (`name`, `year`) VALUES ("Astro boy", 1952);
public boolean update (string $table, array $fields, array $values, string $whereCondition, array $dataTypes) inherited from Phalcon\Db\Adapter Updates data on a table using custom RBDM SQL syntax <?php
//Updating existing robot
$success = $connection->update(
"robots",
array("name")
array("New Astro Boy"),
"id = 101"
);
//Next SQL sentence is sent to the database system
UPDATE `robots` SET `name` = "Astro boy" WHERE id = 101
public boolean delete (string $table, string $whereCondition, array $placeholders, array $dataTypes) inherited from Phalcon\Db\Adapter Deletes data from a table using custom RBDM SQL syntax <?php
//Deleting existing robot
$success = $connection->delete(
"robots",
"id = 101"
);
//Next SQL sentence is generated
DELETE FROM `robots` WHERE `id` = 101
public string getColumnList (array $columnList) inherited from Phalcon\Db\Adapter Gets a list of columns public string limit (string $sqlQuery, int $number) inherited from Phalcon\Db\Adapter Appends a LIMIT clause to $sqlQuery argument <?php
$connection->limit("SELECT * FROM robots", 5);
public string tableExists (string $tableName, string $schemaName) inherited from Phalcon\Db\Adapter Generates SQL checking for the existence of a schema.table <?php
$connection->tableExists("blog", "posts")
public string viewExists (string $viewName, string $schemaName) inherited from Phalcon\Db\Adapter Generates SQL checking for the existence of a schema.view <?php
$connection->viewExists("active_users", "posts")
public string forUpdate (string $sqlQuery) inherited from Phalcon\Db\Adapter Returns a SQL modified with a FOR UPDATE clause public string sharedLock (string $sqlQuery) inherited from Phalcon\Db\Adapter Returns a SQL modified with a LOCK IN SHARE MODE clause public boolean createTable (string $tableName, string $schemaName, array $definition) inherited from Phalcon\Db\Adapter Creates a table public boolean dropTable (string $tableName, string $schemaName, boolean $ifExists) inherited from Phalcon\Db\Adapter Drops a table from a schema/database public boolean addColumn (string $tableName, string $schemaName, Phalcon\Db\ColumnInterface $column) inherited from Phalcon\Db\Adapter Adds a column to a table public boolean modifyColumn (string $tableName, string $schemaName, Phalcon\Db\ColumnInterface $column) inherited from Phalcon\Db\Adapter Modifies a table column based on a definition public boolean dropColumn (string $tableName, string $schemaName, string $columnName) inherited from Phalcon\Db\Adapter Drops a column from a table public boolean addIndex (string $tableName, string $schemaName, Phalcon\Db\IndexInterface $index) inherited from Phalcon\Db\Adapter Adds an index to a table public boolean dropIndex (string $tableName, string $schemaName, string $indexName) inherited from Phalcon\Db\Adapter Drop an index from a table public boolean addPrimaryKey (string $tableName, string $schemaName, Phalcon\Db\IndexInterface $index) inherited from Phalcon\Db\Adapter Adds a primary key to a table public boolean dropPrimaryKey (string $tableName, string $schemaName) inherited from Phalcon\Db\Adapter Drops primary key from a table public boolean true addForeignKey (string $tableName, string $schemaName, Phalcon\Db\ReferenceInterface $reference) inherited from Phalcon\Db\Adapter Adds a foreign key to a table public boolean true dropForeignKey (string $tableName, string $schemaName, string $referenceName) inherited from Phalcon\Db\Adapter Drops a foreign key from a table public string getColumnDefinition (Phalcon\Db\ColumnInterface $column) inherited from Phalcon\Db\Adapter Returns the SQL column definition from a column public array listTables (string $schemaName) inherited from Phalcon\Db\Adapter List all tables on a database <code> print_r($connection->listTables(“blog”) ?> public array getDescriptor () inherited from Phalcon\Db\Adapter Return descriptor used to connect to the active database public string getConnectionId () inherited from Phalcon\Db\Adapter Gets the active connection unique identifier public string getSQLStatement () inherited from Phalcon\Db\Adapter Active SQL statement in the object public string getRealSQLStatement () inherited from Phalcon\Db\Adapter Active SQL statement in the object without replace bound paramters public array getSQLVariables () inherited from Phalcon\Db\Adapter Active SQL statement in the object public array getSQLBindTypes () inherited from Phalcon\Db\Adapter Active SQL statement in the object public string getType () inherited from Phalcon\Db\Adapter Returns type of database system the adapter is used for public string getDialectType () inherited from Phalcon\Db\Adapter Returns the name of the dialect used public Phalcon\Db\DialectInterface getDialect () inherited from Phalcon\Db\Adapter Returns internal dialect instance |