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Making a single reservation, blocking all other requests

We are developing a system, that allows to make a reservation of an item for an offer. In an early phase, the item can be reserved by many offers. Thats not the problem. But at a later step in the process, an offer should be making a blocking reservation of this item.

I planned to do it like this:

1) allow several orders to make a reference to the item
2) as long as the item is not blocked, one offer should be able to block this item (item references to order - but it should only be one relation allowed)
3) only a change in the order may reset the blocking status and allow other orders to block this item

So I need to be able to:

a) automatically set a link from the item to the order, that caused the block
b) only allow further changes, if they are caused by the linked order

How can I do a) and b) ? I will also further investigate and keep this question updated.

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    • vinc_hamm
    • vinc_hamm
    • 6 days ago
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    Hello I've the same kind of question. I follow this topic with extreme attention

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    • John Halls
    • John_Halls
    • 6 days ago
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    Hi

    I would set up a relationship that allows for many offers for a reservation, and a second relationship that is the other way round so that only one offer can block the reservation.

    Then use a combination of triggers and writable ifs to set and re-set accordingly.

    Let me know if you need more help.

    Regards John

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