Re: [phpesp-dev] proposal: survey availability constrained by date

[Matthew G. <mat...@gm...>]

Sounds great to me.

On Tue, 2008-01-15 at 17:22 -0500, Bishop Bettini wrote:
> All,
> 
> I have a client need to constrain a survey's availability to a given  
> window of time.  In other words, survey 1 is available between dates X  
> and Y only: not before X and not after Y.
> 
> I propose to add an optional opening_date and closing_date column to  
> survey, as well as input elements on the General tab of the survey  
> create/edit page.  The survey logic would alter, as follows:
> 
> A survey is available if and only if:
>   a) the existing access control logic is satisfied, and
>   b) one of the following conditions:
>      If opening and closing are set && opening <= now <= closing
>      If opening set and closing is not set && opening <= now
>      If opening not set and closing is set && now <= closing
>      If opening not set and closing not set
> 
> I would also add a data element to the tables on the dashboard, so a  
> respondent can see the temporal availability.  I'd also need to update  
> the error messages appropriately.  And the help documentation.
> 
> With this addition, no existing data will be affected.  Those who wish  
> to constrain to a given date range may.
> 
> Thoughts?
> 
> bishop
>