HELP WITH DATES
This WebDNA talk-list message is from 1997
It keeps the original formatting.
numero = 10453
interpreted = N
texte = No, not that kind of date...The [math] context now understands how to work with dates and we're trying to decide what the standard behavior should be. Please let us know how you feel on these various options:Note: Dates are automatically detected in the math context as long as they are in the following form
//. This means that division of that sort (which I don't thing anyone would ever do) is not permitted.1. dates are automatically converted to an integer value (days since 1/1/0) and then added, subtracted, etc. This means that if you add 0/0/1 to todays date you will really be adding 365 days which may not give you todays date a year from now because of leap years. However, it does let you easily subtract two dates to get the days between them so they can be used for an input somewhere else. The result of the math will be an integer value that you can convert back to a date using the [format] context (with a parameter of days_to_date: [format days_to_date][math]...[/math][/format].2. if any date is detected in the math context, then the entire expression will be evaluated and output as a date. That is, you can add 12/8/65+0/0/31 and you will get 12/8/96 regardless of leap years. And, the result of the math expression will be 12/8/96 so there is no need to wrap the [format] context around it. However, if you want to subtract two dates to get the number of days between them you will need to format the date as days (for example [format date_to_days][math]...[/math][/format]). Also, any integers in the expression will be assumed to be days and handled appropriately.John A. Hill, V.P. Marketing ********************************* Pacific Coast Software * Home of the Web's best 11770 Bernardo Plaza Ct. #462 * Catalog and Merchant software San Diego, CA 92128 * http://www.smithmicro.com Phone: 619-675-1106 Fax: 675-0372 ********************************* ------------------------------------ To leave this talk list send an email to macjordomo@smithmicro.com with BODY unsubscribe WebDNA-Talk ------------------------------------
Associated Messages, from the most recent to the oldest:
No, not that kind of date...The [math] context now understands how to work with dates and we're trying to decide what the standard behavior should be. Please let us know how you feel on these various options:Note: Dates are automatically detected in the math context as long as they are in the following form //. This means that division of that sort (which I don't thing anyone would ever do) is not permitted.1. dates are automatically converted to an integer value (days since 1/1/0) and then added, subtracted, etc. This means that if you add 0/0/1 to todays date you will really be adding 365 days which may not give you todays date a year from now because of leap years. However, it does let you easily subtract two dates to get the days between them so they can be used for an input somewhere else. The result of the math will be an integer value that you can convert back to a date using the [format] context (with a parameter of days_to_date: [format days_to_date][math]...[/math][/format].2. if any date is detected in the math context, then the entire expression will be evaluated and output as a date. That is, you can add 12/8/65+0/0/31 and you will get 12/8/96 regardless of leap years. And, the result of the math expression will be 12/8/96 so there is no need to wrap the [format] context around it. However, if you want to subtract two dates to get the number of days between them you will need to format the date as days (for example [format date_to_days][math]...[/math][/format]). Also, any integers in the expression will be assumed to be days and handled appropriately.John A. Hill, V.P. Marketing ********************************* Pacific Coast Software * Home of the Web's best 11770 Bernardo Plaza Ct. #462 * Catalog and Merchant software San Diego, CA 92128 * http://www.smithmicro.com Phone: 619-675-1106 Fax: 675-0372 ********************************* ------------------------------------ To leave this Talk List send an email to macjordomo@smithmicro.com with BODY unsubscribe WebDNA-Talk ------------------------------------
John Hill
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