analytics/webcontent/bi/samples/js/PromptDateRangeRestrict/LimitTimeBetweenTwoDates.js

define( function() {
"use strict";

function DateRangePrompt()
{
};

function strDateToDateObj (dateValue){
		var dateYear = dateValue.substr(0,4);
		var dateMonth=dateValue.substr(5,2);
		var dateDay=dateValue.substr(8,2);
		var result = new Date(dateYear, dateMonth-1, dateDay);
		return result;
}

function substractDate(endDate, startDate) {
		var startDateObj = strDateToDateObj(startDate); 
		var endDateObj = strDateToDateObj(endDate); 
		var diffInMS = endDateObj.getTime() - startDateObj.getTime();
		return Math.round(diffInMS != 0? diffInMS/(24 * 3600 * 1000) : 0);
}

DateRangePrompt.prototype.draw = function( oControlHost )
{
	var e1=oControlHost.container;
	e1.innerHTML =
		'<style>' +
		'.MyPromptButton' +
		'{' +
			'background-color: white;' +
			'border: 2px solid #4178BE;' +
			'color: #4178be;' +
			'font-size: 14px;' +
			'height: 35px;' +
	        'width: 120px;' +
			'margin-left: 20px;' +
			'cursor: pointer;' +
		'} ' +
		'.MyPromptButton:hover' +
		'{' +
			'background-color: #4178BE;' +
			'color: white;' +
		'}' +
		'</style>' +
		'<button class="MyPromptButton btn1">Run Report</button>';
		e1.querySelector(".btn1").onclick = this.MyPromptButtonFinishClick.bind(this, oControlHost);
};

DateRangePrompt.prototype.MyPromptButtonFinishClick = function (oControlHost) 
{
	var dateRangePrompt = oControlHost.page.getControlByName("myDateRange");
	
	var rangeLimit = 10;

	if (dateRangePrompt) 
	{
		// Create an array of date prompt values
		var aDatePromptValues = dateRangePrompt.getValues();

		//Get the first value from the array
		var rangeValue = aDatePromptValues[0];

		//Initialize a variable to hold the number of days between the two dates
		var rangeDaysDiff = 0;

		// If the range start and end date set, then validate it
		if (rangeValue.start && rangeValue.end) {
			// Get the start and end dates as strings
			var startDate = rangeValue.start.use;
			var endDate = rangeValue.end.use;

			// Convert string prompt values to proper dates
			var startDateObj = strDateToDateObj(startDate); 
			var endDateObj = strDateToDateObj(endDate); 
			
			// Calculate the difference in days between the dates
			rangeDaysDiff = substractDate(endDate,startDate);

			// The .getTime method, calculates the time in milliseconds between date and 01 January 1970.
			// Determine the difference between the dates in milliseconds
			var diffInMS = endDateObj.getTime() - startDateObj.getTime();
							
			// If (milliseconds time difference is not zero)
			// then result = (the difference in days) 
			// else 0.
			rangeDaysDiff =  Math.round(diffInMS != 0? diffInMS/(24 * 3600 * 1000) : 0);
				
			if (rangeDaysDiff >= 0 && rangeDaysDiff <= rangeLimit) 
			{
				oControlHost.finish()
			} else 
			{
				alert ("The dates selected cannot be more than " + rangeLimit + " days apart. Please select a shorter date range.");
			}
		} 
	}
};


return DateRangePrompt;
});