Level 80
@deansatch Sounds like you need some validation to prevent your events from becoming over-subscribed in that case.
Mar 13, 2018
3
Level 24
Preferred date, choose 3, system sorts out who goes when
Basically I am wanting to build something where there are events available each with 10 places available. Users can book a place but must choose their 3 most preferred dates. Then when registration closes, the system will work out who goes on what date to ensure there are no more than 10 per event.
Any ideas what the best route to take would be?
One big hurdle I can see is how could the system know if there are going to be too many people on one event. If for example 40 people happen to choose the same 3 there will be 10 people can't go any date.
Level 24
Yeah I'm just trying to get my head around what logic/math would work out at what point an event is definitely oversubscribed
e.g. Lets say there are 5 events A,B,C,D&E. And 1 person limit on each
U= user
U1 chooses A B C
U2 chooses A B C
U3 chooses A B D
// at this point one is full but I don't know which one as it could be A or B
U4 chooses A B D
// Now we can definitely say A-D are full
// But if U4 did A D E instead still only one unknown is full
U4 chooses A D E
U5 chooses A B D // all 5 are now full
So with that above how could I do that coding-wise?
//key = event date, val = max places
$events = [
'a'=>1,
'b'=>1,
'c'=>1,
'd'=>1,
'e'=>1,
'f'=>1,
];
$choices = [
1 => 'a','b','c',
2 => 'a','b','c',
3 => 'a','b','d',
4 => 'a','d','e',
5 => 'a','b','d',
];
// How would I calculate from above to get this result
$fullEvents = ['a','b','c','d','e'];
$availableEvents = ['f'];
Level 24
Any ideas?
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