Hello,

I would like to join data to string before write to DB.  Anyone help
me solve this out please. Thank you!

The data from form will look like this
[Event] => Array
        (
            [mark] => Array
                (
                    [0] => 1
                    [1] => 2
                    [2] => 3
                    [3] => 4
                )
       )

The following code will join the data to "1,2,3,4" string before
writing it to the db
// join type into csv
                if(!empty($this->data['Event']['mark'])) {
                $this->data['Event']['mark'] = join(',', $this->data['Event']
['mark']);
                }


*My Problem:
The form data of mine after editing for a good view it will return
like this.
I would like to join the value to the string like the code about. How
would I solve the problem?

[Schedule] => Array
        (
            [1] => Array
                (
                    [mark] => 1
                )

            [2] => Array
                (
                    [mark] => 2
                )

            [3] => Array
                (
                    [mark] => 3
                )

            [4] => Array
                (
                    [mark] => 4
                )

        )

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