Need Help in in Line Chart - Booking Project

Hello, 

I'm working on a Booking Project, at this part

Assignment 12: RichWidgets

4. Display the Occupancy for the Next 7 Days Issue

at c), which is 

In the Preparation, create the logic to build the data to be plotted on the chart:
• Get all Rooms in the hotel, to calculate the percentage of occupancy.
• Use a Local Variable to hold the Date to which the occupancy is calculated. The Variable should start on today’s date.
• If the Date in the Local Variable is within the next 7 days:
i. Get all Rooms Booked or Checked In on the date.
ii. Build a DataPoint with the percentage of occupancy for the date.
iii. Append the DataPoint to a List of Data Points.
iv. Add one day to the date on the Local Variable.
v. Define the flow to return to the If.

in the preparation of home screen, I create aggregate to get all rooms with (booked-check-in) status and I create a local variable TodayDate with currDate() as a default value.

But I did not understand what should I do then, could someone help me? 

and what should I assign to the SourceDataPointList in Line Chart?

Hi Ghada,

I allow that the description is a bit unclear :). What you need to do is build a loop that creates a list of DataPoints, for today and the next 7 days, something like this:

Hello Ghada,

• You have to use your Local Variable as a Filter in your Aggregate. 
• After completing the 5 steps (i to v) add one day to the Local Variable
• Check if the Local Variable is still lower than `CurrDate()+7` (within the next 7 days): 

  True- complete the 5 steps, then add one day to the Local Variable; 

  False- move on to step d)

Regarding the chart itself maybe these examples in documentation will help you. 

Kind regards

Kilian Hekhuis wrote:

Hello Kilian, 

I will show you what I do 

I did not create any logic like this before so I need a help on how to doing that

 I assign to the SourceDataPointList in Line Chart to be equal DataPointList

This is the flow of Home preparation:

and the local variable I have are :

and here is my work

but I think my problem in the aggregation which I create it like this:

and the result of my work is :

João Batista wrote:

Hello João,

could you please see my replay above, and respond to me if you can :)

Thanks.

Hi Ghada,

These are my filters:

(the last one says Entites.Status.CheckedIn). Is that the problem with your filter, that you need a valid (non-empty) CheckOutDate?

Kilian Hekhuis wrote:

I make this change then my result was changed which is:

in the assign, before ListAppend I make these assignments:

and my filter is the same as previous so my result is:

do you think my result is correct!

The result is correct if it displays the correct data. I don't know what's in your database :). Just debug it a little, and you'll find the numbers, right?

Kilian Hekhuis wrote:

Thank you for helping me
I appreciate that : )