Référence de la classe JDatabaseImporterMysqli

Graphe d'héritage de JDatabaseImporterMysqli:

Graphe de collaboration de JDatabaseImporterMysqli:

Liste de tous les membres

Fonctions membres publiques
	check ()
Fonctions membres publiques inherited from JDatabaseImporter
	__construct ()
	asXml ()
	from ($from)
	setDbo (JDatabaseDriver $db)
	withStructure ($setting=true)

Fonctions membres protégées
	getAddColumnSQL ($table, SimpleXMLElement $field)
	getAddKeySQL ($table, $keys)
	getAlterTableSQL (SimpleXMLElement $structure)
	getChangeColumnSQL ($table, SimpleXMLElement $field)
	getColumnSQL (SimpleXMLElement $field)
	getDropKeySQL ($table, $name)
	getDropPrimaryKeySQL ($table)
	getKeyLookup ($keys)
	getKeySQL ($columns)
Fonctions membres protégées inherited from JDatabaseImporter
	getDropColumnSQL ($table, $name)
	getRealTableName ($table)
	mergeStructure ()

Additional Inherited Members
Attributs protégés inherited from JDatabaseImporter
	$cache = array()
	$db = null
	$from = array()
	$asFormat = 'xml'
	$options = null

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Description détaillée

Définition à la ligne 19 du fichier mysqli.php.

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Documentation des fonctions membres

JDatabaseImporterMysqli::check

(

)

Checks if all data and options are in order prior to exporting.

Renvoie:

JDatabaseImporterMysqli Method supports chaining.

Depuis:

11.1

Exceptions:

Exception

if an error is encountered.

Réimplémentée à partir de JDatabaseImporter.

Réimplémentée dans JDatabaseImporterMysql.

Définition à la ligne 29 du fichier mysqli.php.

        {
                // Check if the db connector has been set.
                if (!($this->db instanceof JDatabaseDriverMysqli))
                {
                        throw new Exception('JPLATFORM_ERROR_DATABASE_CONNECTOR_WRONG_TYPE');
                }

                // Check if the tables have been specified.
                if (empty($this->from))
                {
                        throw new Exception('JPLATFORM_ERROR_NO_TABLES_SPECIFIED');
                }

                return $this;
        }

JDatabaseImporterMysqli::getAddColumnSQL (   $table, SimpleXMLElement  $field  )

protected

Get the SQL syntax to add a column.

Paramètres:

string	$table	The table name.
SimpleXMLElement	$field	The XML field definition.

Renvoie:

string

Depuis:

11.1

Définition à la ligne 56 du fichier mysqli.php.

        {
                return 'ALTER TABLE ' . $this->db->quoteName($table) . ' ADD COLUMN ' . $this->getColumnSQL($field);
        }

JDatabaseImporterMysqli::getAddKeySQL (   $table,   $keys  )

protected

Get the SQL syntax to add a key.

Paramètres:

string	$table	The table name.
array	$keys	An array of the fields pertaining to this key.

Renvoie:

string

Depuis:

11.1

Définition à la ligne 71 du fichier mysqli.php.

        {
                return 'ALTER TABLE ' . $this->db->quoteName($table) . ' ADD ' . $this->getKeySQL($keys);
        }

JDatabaseImporterMysqli::getAlterTableSQL ( SimpleXMLElement  $structure )

protected

Get alters for table if there is a difference.

Paramètres:

SimpleXMLElement

$structure

The XML structure pf the table.

Renvoie:

array

Depuis:

11.1

Définition à la ligne 85 du fichier mysqli.php.

        {
                $table = $this->getRealTableName($structure['name']);
                $oldFields = $this->db->getTableColumns($table);
                $oldKeys = $this->db->getTableKeys($table);
                $alters = array();

                // Get the fields and keys from the XML that we are aiming for.
                $newFields = $structure->xpath('field');
                $newKeys = $structure->xpath('key');

                // Loop through each field in the new structure.
                foreach ($newFields as $field)
                {
                        $fName = (string) $field['Field'];

                        if (isset($oldFields[$fName]))
                        {
                                // The field exists, check it's the same.
                                $column = $oldFields[$fName];

                                // Test whether there is a change.
                                $change = ((string) $field['Type'] != $column->Type) || ((string) $field['Null'] != $column->Null)
                                        || ((string) $field['Default'] != $column->Default) || ((string) $field['Extra'] != $column->Extra);

                                if ($change)
                                {
                                        $alters[] = $this->getChangeColumnSQL($table, $field);
                                }

                                // Unset this field so that what we have left are fields that need to be removed.
                                unset($oldFields[$fName]);
                        }
                        else
                        {
                                // The field is new.
                                $alters[] = $this->getAddColumnSQL($table, $field);
                        }
                }

                // Any columns left are orphans
                foreach ($oldFields as $name => $column)
                {
                        // Delete the column.
                        $alters[] = $this->getDropColumnSQL($table, $name);
                }

                // Get the lookups for the old and new keys.
                $oldLookup = $this->getKeyLookup($oldKeys);
                $newLookup = $this->getKeyLookup($newKeys);

                // Loop through each key in the new structure.
                foreach ($newLookup as $name => $keys)
                {
                        // Check if there are keys on this field in the existing table.
                        if (isset($oldLookup[$name]))
                        {
                                $same = true;
                                $newCount = count($newLookup[$name]);
                                $oldCount = count($oldLookup[$name]);

                                // There is a key on this field in the old and new tables. Are they the same?
                                if ($newCount == $oldCount)
                                {
                                        // Need to loop through each key and do a fine grained check.
                                        for ($i = 0; $i < $newCount; $i++)
                                        {
                                                $same = (((string) $newLookup[$name][$i]['Non_unique'] == $oldLookup[$name][$i]->Non_unique)
                                                        && ((string) $newLookup[$name][$i]['Column_name'] == $oldLookup[$name][$i]->Column_name)
                                                        && ((string) $newLookup[$name][$i]['Seq_in_index'] == $oldLookup[$name][$i]->Seq_in_index)
                                                        && ((string) $newLookup[$name][$i]['Collation'] == $oldLookup[$name][$i]->Collation)
                                                        && ((string) $newLookup[$name][$i]['Index_type'] == $oldLookup[$name][$i]->Index_type));

                                                /*
                                                Debug.
                                                echo '<pre>';
                                                echo '<br />Non_unique:   '.
                                                        ((string) $newLookup[$name][$i]['Non_unique'] == $oldLookup[$name][$i]->Non_unique ? 'Pass' : 'Fail').' '.
                                                        (string) $newLookup[$name][$i]['Non_unique'].' vs '.$oldLookup[$name][$i]->Non_unique;
                                                echo '<br />Column_name:  '.
                                                        ((string) $newLookup[$name][$i]['Column_name'] == $oldLookup[$name][$i]->Column_name ? 'Pass' : 'Fail').' '.
                                                        (string) $newLookup[$name][$i]['Column_name'].' vs '.$oldLookup[$name][$i]->Column_name;
                                                echo '<br />Seq_in_index: '.
                                                        ((string) $newLookup[$name][$i]['Seq_in_index'] == $oldLookup[$name][$i]->Seq_in_index ? 'Pass' : 'Fail').' '.
                                                        (string) $newLookup[$name][$i]['Seq_in_index'].' vs '.$oldLookup[$name][$i]->Seq_in_index;
                                                echo '<br />Collation:    '.
                                                        ((string) $newLookup[$name][$i]['Collation'] == $oldLookup[$name][$i]->Collation ? 'Pass' : 'Fail').' '.
                                                        (string) $newLookup[$name][$i]['Collation'].' vs '.$oldLookup[$name][$i]->Collation;
                                                echo '<br />Index_type:   '.
                                                        ((string) $newLookup[$name][$i]['Index_type'] == $oldLookup[$name][$i]->Index_type ? 'Pass' : 'Fail').' '.
                                                        (string) $newLookup[$name][$i]['Index_type'].' vs '.$oldLookup[$name][$i]->Index_type;
                                                echo '<br />Same = '.($same ? 'true' : 'false');
                                                echo '</pre>';
                                                 */

                                                if (!$same)
                                                {
                                                        // Break out of the loop. No need to check further.
                                                        break;
                                                }
                                        }
                                }
                                else
                                {
                                        // Count is different, just drop and add.
                                        $same = false;
                                }

                                if (!$same)
                                {
                                        $alters[] = $this->getDropKeySQL($table, $name);
                                        $alters[] = $this->getAddKeySQL($table, $keys);
                                }

                                // Unset this field so that what we have left are fields that need to be removed.
                                unset($oldLookup[$name]);
                        }
                        else
                        {
                                // This is a new key.
                                $alters[] = $this->getAddKeySQL($table, $keys);
                        }
                }

                // Any keys left are orphans.
                foreach ($oldLookup as $name => $keys)
                {
                        if (strtoupper($name) == 'PRIMARY')
                        {
                                $alters[] = $this->getDropPrimaryKeySQL($table);
                        }
                        else
                        {
                                $alters[] = $this->getDropKeySQL($table, $name);
                        }
                }

                return $alters;
        }

JDatabaseImporterMysqli::getChangeColumnSQL (   $table, SimpleXMLElement  $field  )

protected

Get the syntax to alter a column.

Paramètres:

string	$table	The name of the database table to alter.
SimpleXMLElement	$field	The XML definition for the field.

Renvoie:

string

Depuis:

11.1

Définition à la ligne 235 du fichier mysqli.php.

        {
                return 'ALTER TABLE ' . $this->db->quoteName($table) . ' CHANGE COLUMN ' . $this->db->quoteName((string) $field['Field']) . ' '
                        . $this->getColumnSQL($field);
        }

JDatabaseImporterMysqli::getColumnSQL ( SimpleXMLElement  $field )

protected

Get the SQL syntax for a single column that would be included in a table create or alter statement.

Paramètres:

SimpleXMLElement

$field

The XML field definition.

Renvoie:

string

Depuis:

11.1

Définition à la ligne 250 du fichier mysqli.php.

        {
                // TODO Incorporate into parent class and use $this.
                $blobs = array('text', 'smalltext', 'mediumtext', 'largetext');

                $fName = (string) $field['Field'];
                $fType = (string) $field['Type'];
                $fNull = (string) $field['Null'];
                $fDefault = isset($field['Default']) ? (string) $field['Default'] : null;
                $fExtra = (string) $field['Extra'];

                $query = $this->db->quoteName($fName) . ' ' . $fType;

                if ($fNull == 'NO')
                {
                        if (in_array($fType, $blobs) || $fDefault === null)
                        {
                                $query .= ' NOT NULL';
                        }
                        else
                        {
                                // TODO Don't quote numeric values.
                                $query .= ' NOT NULL DEFAULT ' . $this->db->quote($fDefault);
                        }
                }
                else
                {
                        if ($fDefault === null)
                        {
                                $query .= ' DEFAULT NULL';
                        }
                        else
                        {
                                // TODO Don't quote numeric values.
                                $query .= ' DEFAULT ' . $this->db->quote($fDefault);
                        }
                }

                if ($fExtra)
                {
                        $query .= ' ' . strtoupper($fExtra);
                }

                return $query;
        }

JDatabaseImporterMysqli::getDropKeySQL (   $table,   $name  )

protected

Get the SQL syntax to drop a key.

Paramètres:

string	$table	The table name.
string	$name	The name of the key to drop.

Renvoie:

string

Depuis:

11.1

Définition à la ligne 306 du fichier mysqli.php.

        {
                return 'ALTER TABLE ' . $this->db->quoteName($table) . ' DROP KEY ' . $this->db->quoteName($name);
        }

JDatabaseImporterMysqli::getDropPrimaryKeySQL (   $table )

protected

Get the SQL syntax to drop a key.

Paramètres:

string

$table

The table name.

Renvoie:

string

Depuis:

11.1

Définition à la ligne 320 du fichier mysqli.php.

        {
                return 'ALTER TABLE ' . $this->db->quoteName($table) . ' DROP PRIMARY KEY';
        }

JDatabaseImporterMysqli::getKeyLookup (   $keys )

protected

Get the details list of keys for a table.

Paramètres:

array

$keys

An array of objects that comprise the keys for the table.

Renvoie:

array The lookup array. array({key name} => array(object, ...))

Depuis:

11.1

Exceptions:

Exception

Définition à la ligne 335 du fichier mysqli.php.

        {
                // First pass, create a lookup of the keys.
                $lookup = array();

                foreach ($keys as $key)
                {
                        if ($key instanceof SimpleXMLElement)
                        {
                                $kName = (string) $key['Key_name'];
                        }
                        else
                        {
                                $kName = $key->Key_name;
                        }

                        if (empty($lookup[$kName]))
                        {
                                $lookup[$kName] = array();
                        }

                        $lookup[$kName][] = $key;
                }

                return $lookup;
        }

JDatabaseImporterMysqli::getKeySQL (   $columns )

protected

Get the SQL syntax for a key.

Paramètres:

array

$columns

An array of SimpleXMLElement objects comprising the key.

Renvoie:

string

Depuis:

11.1

Définition à la ligne 371 du fichier mysqli.php.

        {
                // TODO Error checking on array and element types.

                $kNonUnique = (string) $columns[0]['Non_unique'];
                $kName = (string) $columns[0]['Key_name'];
                $kColumn = (string) $columns[0]['Column_name'];

                $prefix = '';

                if ($kName == 'PRIMARY')
                {
                        $prefix = 'PRIMARY ';
                }
                elseif ($kNonUnique == 0)
                {
                        $prefix = 'UNIQUE ';
                }

                $nColumns = count($columns);
                $kColumns = array();

                if ($nColumns == 1)
                {
                        $kColumns[] = $this->db->quoteName($kColumn);
                }
                else
                {
                        foreach ($columns as $column)
                        {
                                $kColumns[] = (string) $column['Column_name'];
                        }
                }

                $query = $prefix . 'KEY ' . ($kName != 'PRIMARY' ? $this->db->quoteName($kName) : '') . ' (' . implode(',', $kColumns) . ')';

                return $query;
        }

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La documentation de cette classe a été générée à partir du fichier suivant :

• jplatform-13.1/joomla/database/importer/mysqli.php