[Date->YearWOY] is an accessor for getting or setting the yearwoy field for a date object. The value of the yearwoy field is a number indicating the extended year corresponding to the UCAL_WEEK_OF_YEAR field. This may be one greater or less than the value of UCAL_EXTENDED_YEAR.
Getting uses no parameters and returns the yearwoy within the current month as an integer. The first week of the month has value 1.
Setting requires an integer parameter, and supports the =, += and -= operators. Setting modifies the date object in-place, but does not return a value.
Date Object->yearwoy Date Object->yearwoy=Integer Date Object->yearwoy+=Integer Date Object->yearwoy-=Integer
Use the [Date->YearWOY] method. The following example uses a single date object, then gets the yearwoy and returns its value.
Next we set the yearwoy field to a new value using the = operator, then set it again by adding 1 to the yearwoy using the += operator, and set it once more by subtracting 1 from the yearwoy using the -= operator. We return the result for each set operation.
local(d) = date('2011-02-21 08:00:00') #d->yearwoy + '<br>' #d->yearwoy=2 #d + '<br>' #d->yearwoy+=1 #d + '<br>' #d->yearwoy-=1 #d
2011 2011-02-21 08:00:00 2012-02-20 08:00:00 2011-02-21 08:00:00
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