README

A YYYY-MM/YYYYMM attribute for ATK9

This attribute lets you specify a month of a year in the following formats:

• YYYYMM

Using

Use it as any other atk Attribute with

	$this->add(new YearMonthAttribute('period', AF_OBLIGATORY));

Why not using a simple numeric attribute instead of this?

Well, using YearMonth attribute will asure you that:

• No years below 1900 and above 2200 are entered.
• No month above 12 (i.e. 201714 will not be deemed valid).

Data base store type

The value will be stored in an int column in the form YYYYMM where:

• YYYY Is the year in 4 digits precision (i.e. 2017)
• MM is the month

Thus 201701 is lower than 201702 and higher than 201612.