Change dropdown value based on condition

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Bhetrand Dwilangga

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Change dropdown value based on condition

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Hi everyone,

I'm having trouble creating the Booking System app,so my program has 3 order states = Accepted, Rejected and Sent.
It also has an order start time and an end booking time.

And when a "regular user" requests an order, the request will appear in "Admin Roles". and "Admin Role" will set status to accepted/rejected and assign item with dropdown.

So, what I want to make is that when an item is booked (accepted) during the book start time and end time, when another "regular user" wants to book an item with the same start and end time as the booked item, the booked item will disappear in the dropdown .

Is it possible? If yes, how to do that?

I attached my oml below, so you guys would be more understand..
you can log in with your super admin account for seeing all features,

You can go to My Bookings menu and then add some request, then the request will be appear on dashboard. After that, you can click on the request list, the pop up will show and you can see the dropdown there.

Thankyou

Best Regards,
Ran

BookingSystem.oml

10 Jun

Shingo Lam

Solution

Replying to Bhetrand Dwilangga's comment on 10 Jun 2022 04:42:38

For clarifying your implementation:

In TrxBookingDetailPage, I found the Item dropdown is just shown for admin to select, not for regular user
You should put the Item dropdown below the booking time start and end, so that you can use them as the input for filtering the item

For filter out the data, I recommend that you should add something like this in your aggregate

left join with the booking data like the condition you mentioned above
add condition to determine the left join should return no data

Hope this help

Thanks and best regards,

Shingo

See solution in context

10 Jun

Shingo Lam

Hi Bhetrand,

I believe that you load your dropdown by an aggregate, the easiest way to solve the happy case is to add more condition in that aggregate to filter out the booked item. The smoggy case is still there for further implementation

Happy case: the item is booked already, the regular user comes and loads the dropdown. More condition the aggregate is ok
Smoggy case: the item is setting booked when the regular user already loaded the dropdown. In this case, you cannot filter out the booked item from the dropdown (already loaded on UI), you will have a check when saving and show error

Hope this help

Thanks and best regards

Shingo

10 Jun

8 replies

Last reply 17 Jun

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Bhetrand Dwilangga

I already tried to solve it by Happy case, but i can't find the right filter for the aggregate, may you give me some examples for that filter? Anyway thank you for the respond

Best Regards,
Ran

10 Jun

Shingo Lam

Solution

Replying to Bhetrand Dwilangga's comment on 10 Jun 2022 04:42:38

For clarifying your implementation:

In TrxBookingDetailPage, I found the Item dropdown is just shown for admin to select, not for regular user
You should put the Item dropdown below the booking time start and end, so that you can use them as the input for filtering the item

For filter out the data, I recommend that you should add something like this in your aggregate

left join with the booking data like the condition you mentioned above
add condition to determine the left join should return no data

Hope this help

Thanks and best regards,

Shingo

10 Jun

Bhetrand Dwilangga

Replying to Shingo Lam's comment on 10 Jun 2022 11:01:04

Hello Shingo,
Sorry for just responding..
i would like to say thankyou very much,,i really really appreciated it!
Thankyou Shingo!!
Hope you blessed :D

13 Jun

Shingo Lam

Replying to Bhetrand Dwilangga's comment on 13 Jun 2022 01:16:15

You are welcome.

Hope my solutions come to right person at right time

Thanks and best regards

Shingo

13 Jun

Bhetrand Dwilangga

Replying to Shingo Lam's comment on 13 Jun 2022 01:57:09

Hi shingo, actually im already tried your solution, and it have some new progress, but it still doesn't exactly going right, it like only check first row..
Actually what i want to create is like when the Description "13-8" with duration 14:00 until 16:02 already get Car B, then the first request with duration 14:00 until 15:00 will no having dropdown list with item Car B, so i supposed there will be only item Car A..
Can you help me once again?

Very thanks!

I attached my oml , so you can go to screen TrxBookings and Add Booking as user, then you can login as admin and go to TrxBookingsCar screen and try there..
Thankyouu

Please help me,
Best Regards,
Ran

BookingSystem.oml

13 Jun

Shingo Lam

Replying to Bhetrand Dwilangga's comment on 13 Jun 2022 08:42:25

First of all, I think you need to reload the page to let the dropdown filter out the car B (if your condition is correct).

Moreover, you let the dropdown auto filters out the car B when the 13-8 changed, it is not so easy like that. For the real time refresh, you should use something like socket or firebase to catch the notification about the change of car B to reload the dropdown

Thanks and best regards

Shingo

14 Jun

Shingo Lam

Replying to Bhetrand Dwilangga's comment on 13 Jun 2022 08:42:25

Hi @Bhetrand Dwilangga ,

I have tried on the add booking for car function, it works.

Please view my oml for more detail