Class Phalcon\Db\Adapter

implements Phalcon\Events\EventsAwareInterface

Base class for Phalcon\Db adapters

Methods

protected __construct ()

Phalcon\Db\Adapter constructor

public setEventsManager (Phalcon\Events\ManagerInterface $eventsManager)

Sets the event manager

public Phalcon\Events\ManagerInterface getEventsManager ()

Returns the internal event manager

public array fetchOne (string $sqlQuery, [int $fetchMode], [array $bindParams], [array $bindTypes])

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])

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])

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])

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])

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)

Gets a list of columns

public string limit (string $sqlQuery, int $number)

Appends a LIMIT clause to $sqlQuery argument

<?php

    echo $connection->limit("SELECT * FROM robots", 5);

public string tableExists (string $tableName, [string $schemaName])

Generates SQL checking for the existence of a schema.table

<?php

    var_dump($connection->tableExists("blog", "posts"));

public string viewExists (string $viewName, [string $schemaName])

Generates SQL checking for the existence of a schema.view

<?php

 var_dump($connection->viewExists("active_users", "posts"));

public string forUpdate (string $sqlQuery)

Returns a SQL modified with a FOR UPDATE clause

public string sharedLock (string $sqlQuery)

Returns a SQL modified with a LOCK IN SHARE MODE clause

public boolean createTable (string $tableName, string $schemaName, array $definition)

Creates a table

public boolean dropTable (string $tableName, string $schemaName, [boolean $ifExists])

Drops a table from a schema/database

public boolean addColumn (string $tableName, string $schemaName, Phalcon\Db\ColumnInterface $column)

Adds a column to a table

public boolean modifyColumn (string $tableName, string $schemaName, Phalcon\Db\ColumnInterface $column)

Modifies a table column based on a definition

public boolean dropColumn (string $tableName, string $schemaName, string $columnName)

Drops a column from a table

public boolean addIndex (string $tableName, string $schemaName, Phalcon\Db\IndexInterface $index)

Adds an index to a table

public boolean dropIndex (string $tableName, string $schemaName, string $indexName)

Drop an index from a table

public boolean addPrimaryKey (string $tableName, string $schemaName, Phalcon\Db\IndexInterface $index)

Adds a primary key to a table

public boolean dropPrimaryKey (string $tableName, string $schemaName)

Drops a table’s primary key

public boolean true addForeignKey (string $tableName, string $schemaName, Phalcon\Db\ReferenceInterface $reference)

Adds a foreign key to a table

public boolean true dropForeignKey (string $tableName, string $schemaName, string $referenceName)

Drops a foreign key from a table

public string getColumnDefinition (Phalcon\Db\ColumnInterface $column)

Returns the SQL column definition from a column

public array listTables ([string $schemaName])

List all tables on a database

<?php

    print_r($connection->listTables("blog");

public array getDescriptor ()

Return descriptor used to connect to the active database

public string getConnectionId ()

Gets the active connection unique identifier

public string getSQLStatement ()

Active SQL statement in the object

public string getRealSQLStatement ()

Active SQL statement in the object without replace bound paramters

public array getSQLVariables ()

Active SQL statement in the object

public array getSQLBindTypes ()

Active SQL statement in the object

public string getType ()

Returns type of database system the adapter is used for

public string getDialectType ()

Returns the name of the dialect used

public Phalcon\Db\DialectInterface getDialect ()

Returns internal dialect instance