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Added count, average, sum, min, max, scalar methods to ActiveQuery.

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Added support for scopes defined in AR classes.
This commit is contained in:
Qiang Xue
2013-01-17 19:26:20 -05:00
parent 63bb6efb6e
commit b51d347465
5 changed files with 110 additions and 46 deletions
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36
framework/db/ActiveRecord.php
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@ -127,36 +127,6 @@ class ActiveRecord extends Model
return $query->params($params);
}
/**
* Creates a `COUNT` query for this AR class.
*
* Below are some usage examples:
*
* ~~~
* // count the total number of customers
* echo Customer::count()->value();
* // count the number of active customers:
* echo Customer::count()
* ->where(array('status' => 1))
* ->value();
* // customize the count expression
* echo Customer::count('COUNT(DISTINCT age)')->value();
* ~~~
*
* @param string $q the count expression. If null, it means `COUNT(*)`.
* @return ActiveQuery the newly created [[ActiveQuery]] instance
*/
public static function count($q = null)
{
$query = static::createQuery();
if ($q !== null) {
$query->select = array($q);
} elseif ($query->select === null) {
$query->select = array('COUNT(*)');
}
return $query;
}
/**
* Updates the whole table using the provided attribute values and conditions.
* For example, to change the status to be 1 for all customers whose status is 2:
@ -646,7 +616,7 @@ class ActiveRecord extends Model
$values[$key] = isset($this->_attributes[$key]) ? $this->_attributes[$key] : null;
}
}
$db = $this->getDbConnection();
$db = static::getDbConnection();
$command = $db->createCommand()->insert($this->tableName(), $values);
if ($command->execute()) {
$table = $this->getTableSchema();
@ -1082,7 +1052,7 @@ class ActiveRecord extends Model
foreach ($extraColumns as $k => $v) {
$columns[$k] = $v;
}
$this->getDbConnection()->createCommand()
static::getDbConnection()->createCommand()
->insert($viaTable, $columns)->execute();
} else {
$p1 = $model->isPrimaryKey(array_keys($relation->link));
@ -1153,7 +1123,7 @@ class ActiveRecord extends Model
foreach ($relation->link as $a => $b) {
$columns[$b] = $model->$a;
}
$command = $this->getDbConnection()->createCommand();
$command = static::getDbConnection()->createCommand();
if ($delete) {
$command->delete($viaTable, $columns)->execute();
} else {