Accessing the database using JDatabase: Difference between revisions
From Joomla! Documentation
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Can anyone provide more info regarding insertObject()? | |||
I just have no idea of how to insert a row into a table. I tried to do the following but it just doesn't work: | |||
$db = & JFactory::getDBO(); | |||
$query = "insert into #__my_table(field1, field2) values ('".$value1."','".$value2."')"; | |||
echo $query; | |||
$db->setQuery( $query ); | |||
return($db->Query()); | |||
Any ideas? | |||
Thanks! | |||
<source lang="php"> | |||
/** | |||
* | |||
* $object->fieldname1 = 'value1'; | |||
* $object->fieldname2 = 'value2'; | |||
* $object->fieldname3 = 'value3'; | |||
* $object->fieldname4 = 'value4'; | |||
* $object->fieldname5 = 'value5'; | |||
* | |||
* $table = '#__tablename'; | |||
* | |||
*/ | |||
$db = JFactory::getDBO(); | |||
$db->insertObject($table, $object, 'id'); | |||
/** | |||
* | |||
* The query will be generated: | |||
* | |||
* INSERT INTO `#__tablename` ( 'fieldname1', 'fieldname2', 'fieldname3', 'fieldname4', 'fieldname5' ) VALUES ( 'value1', 'value2', 'value3', 'value4', 'value5' ); | |||
* | |||
* and executed | |||
* | |||
*/ | |||
echo $object->id; // will output the last insert ID | |||
</source> | |||
If you wanna use "your" syntax: | |||
<source lang="php"> | |||
$db = JFactory::getDOB(); | |||
$query = "INSERT INTO `#__tablename` ( 'field1', 'field2' ) VALUES ( '".$value1."', '".$value2."')"; | |||
/** | |||
* | |||
* $db->setQuery($query); | |||
* | |||
* if ($dump) { | |||
* echo $db->getQuery(); | |||
* } | |||
* | |||
* $db->Query(); | |||
* | |||
*/ | |||
$db->Execute($query); | |||
</source> | |||
But it's recommend to use a controller/model/table construct: | |||
<source lang="php"> | |||
// controller | |||
$model = $this->getModel('modelname') | |||
$model->store($data); | |||
// Model | |||
public function store($data) { | |||
[...] | |||
$row = JTable::getInstance('KomponentNameTableName'); | |||
//save it in the db | |||
if (!$row->save($data)) { | |||
JError::raiseError( 500, $row->_db->getError() ); | |||
return false; | |||
} | |||
[...] | |||
} | |||
// table/komponentnametablename.php | |||
class JTableKomponentNameTableName extends JTable { | |||
/** | |||
* Primary Key | |||
* @var int | |||
*/ | |||
var $id = null; | |||
/** @var int */ | |||
var $field1 = null; | |||
/** @var char */ | |||
var $field2 = null; | |||
public function __construct(& $db) { | |||
parent::__construct('#__tablename', 'id', $db); | |||
} | |||
public function check () { | |||
// Check all fields $this->fieldname | |||
return true; | |||
} | |||
} | |||
</source> | |||
-- [[User:Bembelimen|Bembelimen]] 12:34, 16 March 2009 (UTC) | |||
---- | |||
I think, you can '''not''' repeat the call to loadAssoc to get further rows, because | |||
loadAssoc runs the query unconditionally, I got a infinite recursion using it this way: | |||
<source lang="php"> | |||
while($row = $db->loadAssoc()){ | |||
// do something... | |||
} | |||
</source> | |||
See: [http://api.joomla.org/__filesource/fsource_Joomla-Framework_Database_joomladatabasedatabasemysql.php.html#a390] | |||
line: 392 | |||
== Merging the 2 suggested articles == | |||
* Article 1:[[How to use the database classes in your script]] | |||
* Article 2:[[Tutorial:How to use the database classes in your script]] | |||
Discuss here ([[User:E-builds|E-builds]] 17:38, 11 January 2010 (UTC)) | |||
While they have the same name one is 'supposed' to be a reference and the other a 'how to' tutorial. Given that I think that the two should be complementary and linked but not merged. [[User:GreyHead|GreyHead]] | |||
:I went ahead with the merge while emptying the Tutorial namespace. This article's contents were a superset of the tutorial's, and the style was exactly the same. The page [[API16:JDatabase]] can serve as a reference. [[User:Mvangeest|Mvangeest]] 14:07, 15 January 2011 (UTC) | |||
== Subqueries == | |||
Ancient versions of MySQL are rare and becoming rarer. Please don't encourage people to break subqueries into two separate queries - it adds load to database servers! Signed, every DB admin on the planet. [[User:Rosuav|Rosuav]] 23:22, 6 February 2011 (UTC) | |||
== Joomla Versions and Joomla DB == | == Joomla Versions and Joomla DB == | ||
I'm wondering what does Joomla DB means in ''Supported Storage Connectors''? | I'm wondering what does Joomla DB means in ''Supported Storage Connectors''? | ||
Does Joomla 3.x supports Oracle DBMS or not? | Does Joomla 3.x supports Oracle DBMS or not? | ||
Revision as of 20:05, 28 March 2014
Can anyone provide more info regarding insertObject()? I just have no idea of how to insert a row into a table. I tried to do the following but it just doesn't work:
$db = & JFactory::getDBO(); $query = "insert into #__my_table(field1, field2) values ('".$value1."','".$value2."')"; echo $query; $db->setQuery( $query ); return($db->Query());
Any ideas?
Thanks!
/**
*
* $object->fieldname1 = 'value1';
* $object->fieldname2 = 'value2';
* $object->fieldname3 = 'value3';
* $object->fieldname4 = 'value4';
* $object->fieldname5 = 'value5';
*
* $table = '#__tablename';
*
*/
$db = JFactory::getDBO();
$db->insertObject($table, $object, 'id');
/**
*
* The query will be generated:
*
* INSERT INTO `#__tablename` ( 'fieldname1', 'fieldname2', 'fieldname3', 'fieldname4', 'fieldname5' ) VALUES ( 'value1', 'value2', 'value3', 'value4', 'value5' );
*
* and executed
*
*/
echo $object->id; // will output the last insert ID
If you wanna use "your" syntax:
$db = JFactory::getDOB();
$query = "INSERT INTO `#__tablename` ( 'field1', 'field2' ) VALUES ( '".$value1."', '".$value2."')";
/**
*
* $db->setQuery($query);
*
* if ($dump) {
* echo $db->getQuery();
* }
*
* $db->Query();
*
*/
$db->Execute($query);
But it's recommend to use a controller/model/table construct:
// controller
$model = $this->getModel('modelname')
$model->store($data);
// Model
public function store($data) {
[...]
$row = JTable::getInstance('KomponentNameTableName');
//save it in the db
if (!$row->save($data)) {
JError::raiseError( 500, $row->_db->getError() );
return false;
}
[...]
}
// table/komponentnametablename.php
class JTableKomponentNameTableName extends JTable {
/**
* Primary Key
* @var int
*/
var $id = null;
/** @var int */
var $field1 = null;
/** @var char */
var $field2 = null;
public function __construct(& $db) {
parent::__construct('#__tablename', 'id', $db);
}
public function check () {
// Check all fields $this->fieldname
return true;
}
}
-- Bembelimen 12:34, 16 March 2009 (UTC)
I think, you can not repeat the call to loadAssoc to get further rows, because loadAssoc runs the query unconditionally, I got a infinite recursion using it this way:
while($row = $db->loadAssoc()){
// do something...
}
See: [1] line: 392
Merging the 2 suggested articles
- Article 1:How to use the database classes in your script
- Article 2:Tutorial:How to use the database classes in your script
Discuss here (E-builds 17:38, 11 January 2010 (UTC))
While they have the same name one is 'supposed' to be a reference and the other a 'how to' tutorial. Given that I think that the two should be complementary and linked but not merged. GreyHead
- I went ahead with the merge while emptying the Tutorial namespace. This article's contents were a superset of the tutorial's, and the style was exactly the same. The page API16:JDatabase can serve as a reference. Mvangeest 14:07, 15 January 2011 (UTC)
Subqueries
Ancient versions of MySQL are rare and becoming rarer. Please don't encourage people to break subqueries into two separate queries - it adds load to database servers! Signed, every DB admin on the planet. Rosuav 23:22, 6 February 2011 (UTC)
Joomla Versions and Joomla DB
I'm wondering what does Joomla DB means in Supported Storage Connectors? Does Joomla 3.x supports Oracle DBMS or not?