使用查询构建器Yii选择特定期间之间的年和月的日期

Question

I want to select data from database where date field is between certain period. For example: between January 2015 and April 2015.

$Q1 = Yii::app()->db->createCommand()
                ->select('count(kode_lelang) as totTender')
                ->from('proc_lelang')
                ->where('year(waktu_mulai)='.$year and 'month(waktu_mulai) between 1 and 4')
                ->queryAll();

But I do not think that I am writing the right syntax. so, Please help me.

Answer 1

I think the error is that the 'and' is not inside the string:

$Q1 = Yii::app()->db->createCommand()
                ->select('count(kode_lelang) as totTender')
                ->from('proc_lelang')
                ->where('year(waktu_mulai)='{$year}' and month(waktu_mulai) between 1 and 4')
                ->queryAll();

Answer 2

There is a misplaced quote in your where statement. It's simpler to use double quotes and variable replacement instead.

->where("year(waktu_mulai)={$year} and month(waktu_mulai) between 1 and 4")

Please not that this is dangerous if the user can control the content of variable $year as this could lead to SQL injections. Check the Yii docs on how to prevent SQL injections.