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ForeignKeyTrait.php
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ForeignKeyTrait.php
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<?php
namespace ignatenkovnikita\migrationsaddons;
/**
* This trait must be used in migration files.
*
* Trait ForeignKeyTrait
*
* @package console\traits
*/
trait ForeignKeyTrait
{
/**
* Add foreign keys to $table
*
* @param string $table table name
* @param array $fields , for example [
* ['sale_point_id', 'sale_point', 'id],
* ['employee_id', 'employee', 'id]
* ]
* @param string $delete
* @param string $update
*/
public function addForeignKeys($table, array $fields, $delete = 'CASCADE', $update = 'CASCADE')
{
foreach ($fields as $field) {
$this->addForeignKey(
$this->getKeyName($table, $field[0]),
$table,
$field[0],
$field[1],
$field[2],
$delete,
$update
);
}
}
/**
* Drop fk from table
* @param $table
* @param array $keys
*/
public function dropForeignKeys($table, array $keys)
{
foreach ($keys as $key) {
$value = is_array($key) ? $key[0] : $key;
$this->dropForeignKey($this->getKeyName($table, $value), $table);
}
}
/**
* Get name by table and field names
* @param $name
* @param $field
*
* @return mixed
*/
private function getKeyName($name, $field)
{
$name = str_replace('{{%', '', $name);
$name = str_replace('}}', '', $name);
return sprintf('fk_%s_%s', $name, $field);
}
}