مثال 9.95. Example of reading a column in a row

<?php

$bugs = new Bugs();
$row = $bugs->fetchRow('bug_id = 1');

// Echo the value of the bug_description column
echo $row->bug_description;

?>

مثال 9.96. Example of using the toArray() method

<?php

$bugs = new Bugs();
$row = $bugs->fetchRow('bug_id = 1');

// Get the column/value associative array from the Row object
$rowArray = $row->toArray();

// Now use it as a normal array
foreach ($rowArray as $column => $value) {
    echo "Column: $column\n";
    echo "Value:  $value\n";
}

?>

مثال 9.97. Example of changing a column in a row

<?php

$bugs = new Bugs();
$row = $bugs->fetchRow('bug_id = 1');

// Change the value of one or more columns
$row->bug_status = 'FIXED';

// UPDATE the row in the database with new values
$row->save();

?>

مثال 9.98. Example of creating a new row for a table

<?php

$bugs = new Bugs();
$newRow = $bugs->createRow();

// Set column values as appropriate for your application
$newRow->bug_description = '...description...';
$newRow->bug_status = 'NEW';

// INSERT the new row to the database
$newRow->save();

?>

مثال 9.99. Example of populating a new row for a table

<?php

$data = array(
    'bug_description' => '...description...',
    'bug_status'      => 'NEW'
);

$bugs = new Bugs();
$newRow = $bugs->createRow($data);

// INSERT the new row to the database
$newRow->save();

?>

مثال 9.100. Example of using setFromArray() to set values in a new Row

<?php

$bugs = new Bugs();
$newRow = $bugs->createRow();

// Data are arranged in an associative array
$data = array(
    'bug_description' => '...description...',
    'bug_status'      => 'NEW'
);

// Set all the column values at once
$newRow->setFromArray($data);

// INSERT the new row to the database
$newRow->save();

?>

مثال 9.101. Example of deleting a row

<?php

$bugs = new Bugs();
$row = $bugs->fetchRow('bug_id = 1');

// DELETE this row
$row->delete();

?>

مثال 9.102. Example of serializing a row

<?php

$bugs = new Bugs();
$row = $bugs->fetchRow('bug_id = 1');

// Convert object to serialized form
$serializedRow = serialize($row);

// Now you can write $serializedRow to a file, etc.

?>

مثال 9.103. Example of unserializing a serialized row

<?php

$rowClone = unserialize($serializedRow);

// Now you can use object properties, but read-only
echo $rowClone->bug_description;

?>

مثال 9.104. Example of reactivating a row

<?php

$rowClone = unserialize($serializedRow);

$bugs = new Bugs();

// Reconnect the row to a table, and
// thus to a live database connection
$rowClone->setTable($bugs);

// Now you can make changes to the row and save them
$rowClone->bug_status = 'FIXED';
$rowClone->save();

?>

مثال 9.106. Example of custom logic in a Row class

The custom logic may not apply in all cases of operations on the respective Table. You can provide custom logic on demand by implementing it in a Row class and creating an instance of the Table class with that custom Row class specified. Otherwise, the Table uses the default Row class.

You need data operations on this table to record the operation to a Zend_Log object, but only if the application configuration has enabled this behavior.

<?php

class MyLoggingRow extends Zend_Db_Table_Row_Abstract
{
    protected function _insert()
    {
        $log = Zend_Registry::get('database_log');
        $log->info(Zend_Debug::dump($this->_data, "INSERT: $this->_tableClass", false));
    }
}

// $loggingEnabled is an example property that depends
// on your application configuration
if ($loggingEnabled) {
    $bugs = new Bugs(array('rowClass' => 'MyLoggingRow'));
} else {
    $bugs = new Bugs();
}

?>

مثال 9.107. Example of a Row class that logs insert data for multiple tables

The custom logic may be common to multiple tables. Instead of implementing the same custom logic in every one of your Table classes, you can implement the code for such actions in the definition of a Row class, and use this Row in each of your Table classes.

In this example, the logging code is identical in all table classes.

<?php

class MyLoggingRow extends Zend_Db_Table_Row_Abstract
{
    protected function _insert()
    {
        $log = Zend_Registry::get('database_log');
        $log->info(Zend_Debug::dump($this->_data, "INSERT: $this->_tableClass", false));
    }
}

class Bugs extends Zend_Db_Table_Abstract
{
    protected $_name = 'bugs';
    protected $_rowClass = 'MyLoggingRow';
}

class Products extends Zend_Db_Table_Abstract
{
    protected $_name = 'products';
    protected $_rowClass = 'MyLoggingRow';
}

?>

مثال 9.108. Example of defining an inflection transformation

This allows you to use an inflected version of the column name in the accessors. The Row class uses the _transformColumn() method to change the name you use to the native column name in the database table.

<?php

class MyInflectedRow extends Zend_Db_Table_Row_Abstract
{
    protected function _transformColumn($columnName)
    {
        $nativeColumnName = myCustomInflector($columnName);
        return $nativeColumnName;
    }
}

class Bugs extends Zend_Db_Table_Abstract
{
    protected $_name = 'bugs';
    protected $_rowClass = 'MyInflectedRow';
}

$bugs = new Bugs();
$row = $bugs->fetchNew();

// Use camelcase column names, and rely on the
// transformation function to change it into the
// native representation.
$row->bugDescription = 'New description';

?>