Abstract class Phalcon\Db\Adapter

implements Phalcon\Events\EventsAwareInterface

Base class for Phalcon\Db adapters

Methods

public getDialectType ()

Name of the dialect used

public getType ()

Type of database system the adapter is used for

public getSqlVariables ()

Active SQL bound parameter variables

public __construct (unknown $descriptor)

Phalcon\Db\Adapter constructor

public setEventsManager (unknown $eventsManager)

Sets the event manager

public Phalcon\Events\ManagerInterface getEventsManager ()

Returns the internal event manager

public setDialect (unknown $dialect)

Sets the dialect used to produce the SQL

public Phalcon\Db\DialectInterface getDialect ()

Returns internal dialect instance

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

Returns the first row in a SQL query result

  1. <?php
  3. //Getting first robot
  4. $robot = $connection->fecthOne("SELECT * FROM robots");
  5. print_r($robot);
  7. //Getting first robot with associative indexes only
  8. $robot = $connection->fecthOne("SELECT * FROM robots", Phalcon\Db::FETCH_ASSOC);
  9. print_r($robot);

public array fetchAll (unknown $sqlQuery, [unknown $fetchMode], [unknown $bindParams], [unknown $bindTypes])

Dumps the complete result of a query into an array

  1. <?php
  3. //Getting all robots with associative indexes only
  4. $robots = $connection->fetchAll("SELECT * FROM robots", Phalcon\Db::FETCH_ASSOC);
  5. foreach ($robots as $robot) {
  6.     print_r($robot);
  7. }
  9.   //Getting all robots that contains word "robot" withing the name
  10.   $robots = $connection->fetchAll("SELECT * FROM robots WHERE name LIKE :name",
  11.     Phalcon\Db::FETCH_ASSOC,
  12.     array('name' => '%robot%')
  13.   );
  14. foreach($robots as $robot){
  15.     print_r($robot);
  16. }

public string| fetchColumn (unknown $sqlQuery, [unknown $placeholders], [unknown $column])

Returns the n’th field of first row in a SQL query result

  1. <?php
  3.     //Getting count of robots
  4.     $robotsCount = $connection->fetchColumn("SELECT count(*) FROM robots");
  5.     print_r($robotsCount);
  7.     //Getting name of last edited robot
  8.     $robot = $connection->fetchColumn("SELECT id, name FROM robots order by modified desc");
  9.     print_r($robot);

public boolean insert (unknown $table, unknown $values, [unknown $fields], [unknown $dataTypes])

Inserts data into a table using custom RBDM SQL syntax

  1. <?php
  3.  //Inserting a new robot
  4.  $success = $connection->insert(
  5.      "robots",
  6.      array("Astro Boy", 1952),
  7.      array("name", "year")
  8.  );
  10.  //Next SQL sentence is sent to the database system
  11.  INSERT INTO `robots` (`name`, `year`) VALUES ("Astro boy", 1952);

public boolean insertAsDict (unknown $table, unknown $data, [unknown $dataTypes])

Inserts data into a table using custom RBDM SQL syntax Another, more convenient syntax

  1. <?php
  3.  //Inserting a new robot
  4.  $success = $connection->insert(
  5.      "robots",
  6.      array(
  7.           "name" => "Astro Boy",
  8.           "year" => 1952
  9.       )
  10.  );
  12.  //Next SQL sentence is sent to the database system
  13.  INSERT INTO `robots` (`name`, `year`) VALUES ("Astro boy", 1952);

public boolean update (unknown $table, unknown $fields, unknown $values, [unknown $whereCondition], [unknown $dataTypes])

Updates data on a table using custom RBDM SQL syntax

  1. <?php
  3.  //Updating existing robot
  4.  $success = $connection->update(
  5.      "robots",
  6.      array("name"),
  7.      array("New Astro Boy"),
  8.      "id = 101"
  9.  );
  11.  //Next SQL sentence is sent to the database system
  12.  UPDATE `robots` SET `name` = "Astro boy" WHERE id = 101
  14.  //Updating existing robot with array condition and $dataTypes
  15.  $success = $connection->update(
  16.      "robots",
  17.      array("name"),
  18.      array("New Astro Boy"),
  19.      array(
  20.          'conditions' => "id = ?",
  21.          'bind' => array($some_unsafe_id),
  22.          'bindTypes' => array(PDO::PARAM_INT) //use only if you use $dataTypes param
  23.      ),
  24.      array(PDO::PARAM_STR)
  25.  );

Warning! If $whereCondition is string it not escaped.

public boolean updateAsDict (unknown $table, unknown $data, [unknown $whereCondition], [unknown $dataTypes])

Updates data on a table using custom RBDM SQL syntax Another, more convenient syntax

  1. <?php
  3.  //Updating existing robot
  4.  $success = $connection->update(
  5.      "robots",
  6.      array(
  7.           "name" => "New Astro Boy"
  8.       ),
  9.      "id = 101"
  10.  );
  12.  //Next SQL sentence is sent to the database system
  13.  UPDATE `robots` SET `name` = "Astro boy" WHERE id = 101

public boolean delete (unknown $table, [unknown $whereCondition], [unknown $placeholders], [unknown $dataTypes])

Deletes data from a table using custom RBDM SQL syntax

  1. <?php
  3.  //Deleting existing robot
  4.  $success = $connection->delete(
  5.      "robots",
  6.      "id = 101"
  7.  );
  9.  //Next SQL sentence is generated
  10.  DELETE FROM `robots` WHERE `id` = 101

public string getColumnList (unknown $columnList)

Gets a list of columns

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

Appends a LIMIT clause to $sqlQuery argument

  1. <?php
  3.     echo $connection->limit("SELECT * FROM robots", 5);

public boolean tableExists (unknown $tableName, [unknown $schemaName])

Generates SQL checking for the existence of a schema.table

  1. <?php
  3.     var_dump($connection->tableExists("blog", "posts"));

public boolean viewExists (unknown $viewName, [unknown $schemaName])

Generates SQL checking for the existence of a schema.view

  1. <?php
  3.  var_dump($connection->viewExists("active_users", "posts"));

public string forUpdate (unknown $sqlQuery)

Returns a SQL modified with a FOR UPDATE clause

public string sharedLock (unknown $sqlQuery)

Returns a SQL modified with a LOCK IN SHARE MODE clause

public boolean createTable (unknown $tableName, unknown $schemaName, unknown $definition)

Creates a table

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

Drops a table from a schema/database

public boolean createView (unknown $viewName, unknown $definition, [unknown $schemaName])

Creates a view

public boolean dropView (unknown $viewName, [unknown $schemaName], [unknown $ifExists])

Drops a view

public boolean addColumn (unknown $tableName, unknown $schemaName, unknown $column)

Adds a column to a table

public boolean modifyColumn (unknown $tableName, unknown $schemaName, unknown $column)

Modifies a table column based on a definition

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

Drops a column from a table

public boolean addIndex (unknown $tableName, unknown $schemaName, unknown $index)

Adds an index to a table

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

Drop an index from a table

public boolean addPrimaryKey (unknown $tableName, unknown $schemaName, unknown $index)

Adds a primary key to a table

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

Drops a table’s primary key

public boolean true addForeignKey (unknown $tableName, unknown $schemaName, unknown $reference)

Adds a foreign key to a table

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

Drops a foreign key from a table

public string getColumnDefinition (unknown $column)

Returns the SQL column definition from a column

public array listTables ([unknown $schemaName])

List all tables on a database

  1. <?php
  3.     print_r($connection->listTables("blog"));

public array listViews ([unknown $schemaName])

List all views on a database

  1. <?php
  3. print_r($connection->listViews("blog"));

public Phalcon\Db\Index [] describeIndexes (unknown $table, [unknown $schema])

Lists table indexes

  1. <?php
  3. print_r($connection->describeIndexes('robots_parts'));

public Phalcon\Db\Reference [] describeReferences (unknown $table, [unknown $schema])

Lists table references

  1. <?php
  3.  print_r($connection->describeReferences('robots_parts'));

public array tableOptions (unknown $tableName, [unknown $schemaName])

Gets creation options from a table

  1. <?php
  3.  print_r($connection->tableOptions('robots'));

public boolean createSavepoint (unknown $name)

Creates a new savepoint

public boolean releaseSavepoint (unknown $name)

Releases given savepoint

public boolean rollbackSavepoint (unknown $name)

Rollbacks given savepoint

public Phalcon\Db\AdapterInterface setNestedTransactionsWithSavepoints (unknown $nestedTransactionsWithSavepoints)

Set if nested transactions should use savepoints

public boolean isNestedTransactionsWithSavepoints ()

Returns if nested transactions should use savepoints

public string getNestedTransactionSavepointName ()

Returns the savepoint name to use for nested transactions

public Phalcon\Db\RawValue getDefaultIdValue ()

Returns the default identity value to be inserted in an identity column

  1. <?php
  3.  //Inserting a new robot with a valid default value for the column 'id'
  4.  $success = $connection->insert(
  5.      "robots",
  6.      array($connection->getDefaultIdValue(), "Astro Boy", 1952),
  7.      array("id", "name", "year")
  8.  );

public boolean supportSequences ()

Check whether the database system requires a sequence to produce auto-numeric values

public boolean useExplicitIdValue ()

Check whether the database system requires an explicit value for identity columns

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 getSQLBindTypes ()

Active SQL statement in the object