Condition that deletes rows older than 30 days

Ricardo Castañeda

7/27/24, 8:50 AM

How can I query a condition that deletes the rows with column Date older than the last 30 days in DBTNG format?

I have tried this, but it's wrong.

$connection = \Drupal::database();
$connection->delete('my_table')
    ->condition('Date', now() . ' - INTERVAL 30 day', '>');
$connection->execute();

1 + 2

database

Hodba Khalaf

7/27/24, 9:00 AM

Is it a created date? you try using EntityTypeManager to query the condition, then loop and delete them one by one. I would do it using a batch approach.

cilefen

7/27/24, 9:49 AM

PHP’s now() function (a deprecated alias for time()), which that code calls, returns the current Unix timestamp. You can’t subtract “INTERVAL 30 day” from it.

Score:1

Drupal

Ricardo Castañeda

8/1/24, 4:54 AM

Considering that the field Date is type date and has values with the following format: Y-m-d (2023-04-04).

// Returns a timestamp equivalent to: 2023-07-01 17:20:53 UTC (today is 2023-07-31)
$range = strtotime('now -30 days'); 

// Converts the previous timestamp to Y-m-d format
$rangeTimestamp = date('Y-m-d', $range); 

// Stores the database service into a variable
$connection = \Drupal::database();
        
// Query that retrieves rows with column Date (Y-m-d) with a value older than specific range. 
$query =  $connection->delete('my_table')
          ->condition('Date', $rangeTimestamp, '<=')
          ->execute();

// If Date is greater or equal '>=', it's inside the range of 30 days.
// If Date is lower or equal '<=', it's outside the range, and is older than 30 days.

+ 1

apaderno

8/1/24, 7:07 AM

Actually, `$range` contains a timestamp and `$rangeTimestamp` contains a date string. The first variable should be really named `$rangeTimestamp`, and the second variable should be named `$range`. Actually, they are not ranges, so their names should not contain *range*.

Elon Musk

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EN: Condition that deletes rows older than 30 days

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