yii\db\SchemaBuilderTrait::boolean PHP Method

Creates a boolean column.

Since: 2.0.6

public boolean ( ) : ColumnSchemaBuilder
return	ColumnSchemaBuilder	the column instance which can be further customized.

    public function boolean()
    {
        return $this->getDb()->getSchema()->createColumnSchemaBuilder(Schema::TYPE_BOOLEAN);
    }

SchemaBuilderTrait