Yii: save multiple records in one query - activerecord

Question

I'm trying to save a lot of CActiveRecord model objects in a loop.
I have something like this:
foreach ($array_of_items as $item) {
$values = array(
"title" => $item->title,
"content" => $item->content,
);
$object = new MyModel;
$object->attributes = $values;
$object->save();
}
In my case, this creates about 400 CActiveRecord objects. The saving process is really slow, because each save() queries the database.
Is there a way to save all those objects in one go?
Something like:
$objects = array();
foreach ($array_of_items as $item) {
$values = array(
"title" => $item->title,
"content" => $item->content,
);
$object = new MyModel;
$object->attributes = $values;
$objects[] = $object;
}
save_all_objects($objects);
I could not find anything on the subject. Anyone?

Answer 1

you can validate() your model, and if it was ok you can append it so a sql text for insert,
and after your loop, just use databases commandBuilder() and execute your prepared text
$sql = '';
if($object->validate())
{
$sql .= ',("' . $object->attr1 . '")'// append to script,(you get the idea, you need to also make a correct values)
}
...
if(!empty($sql))
{
$sql = 'INSERT INTO table (attr1) Values' . $sql;// make complete script
// execute that command
}

Answer 2

Since v1.1.14, the method createMultipleInsertCommand() of CDbCommandBuilder class is available.

Answer 3

For insert multi rows, Put this code in components folder under GeneralRepository.php file name.
<?php
class GeneralRepository
{
/**
* Creates and executes an INSERT SQL statement for several rows.
* By: Nabi K.A.Z. <www.nabi.ir>
* Version: 0.1.0
* License: BSD3
*
* Usage:
* $rows = array(
* array('id' => 1, 'name' => 'John'),
* array('id' => 2, 'name' => 'Mark')
* );
* GeneralRepository::insertSeveral(User::model()->tableName(), $rows);
*
* #param string $table the table that new rows will be inserted into.
* #param array $array_columns the array of column datas array(array(name=>value,...),...) to be inserted into the table.
* #return integer number of rows affected by the execution.
*/
public static function insertSeveral($table, $array_columns)
{
$connection = Yii::app()->db;
$sql = '';
$params = array();
$i = 0;
foreach ($array_columns as $columns) {
$names = array();
$placeholders = array();
foreach ($columns as $name => $value) {
if (!$i) {
$names[] = $connection->quoteColumnName($name);
}
if ($value instanceof CDbExpression) {
$placeholders[] = $value->expression;
foreach ($value->params as $n => $v)
$params[$n] = $v;
} else {
$placeholders[] = ':' . $name . $i;
$params[':' . $name . $i] = $value;
}
}
if (!$i) {
$sql = 'INSERT INTO ' . $connection->quoteTableName($table)
. ' (' . implode(', ', $names) . ') VALUES ('
. implode(', ', $placeholders) . ')';
} else {
$sql .= ',(' . implode(', ', $placeholders) . ')';
}
$i++;
}
$command = Yii::app()->db->createCommand($sql);
return $command->execute($params);
}
}
And usage anywhere:
$rows = array(
array('id' => 1, 'name' => 'John'),
array('id' => 2, 'name' => 'Mark')
);
GeneralRepository::insertSeveral(User::model()->tableName(), $rows);
https://www.yiiframework.com/extension/yii-insert-multi-rows