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Restoring an object after dbDeleteObject

acook

Is it possible to save an object before I run dbDeleteObject so that it can be restored. I am working on a script where I may want to restore an instance I deleted.

Is the only way to do this brute force by saving all of the instances properties?

Example code:

inst = car( cvid->instances); Get my instance

backupInst = inst

dbDeleteObject(inst); delete inst

Both inst->?? and backupInst return:

     -> dbGetq: object is a purged/freed object - db:0x2057b31b

What I want to do next:

dbCreateObject(backupInst); A function that doesn't exist.....

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  • Andrew Beckett

    The simple answer to the original question is "no". The closest is hiUndo, as the previous poster explained.

    There's no dbCreateObject - you have to use the specific dbCreate.* function to recreate the object. Bear in mind that deleting some objects actually can delete multiple objects - for example, if you delete a net, it will delete any terminals on that net, plus any pins on those terminals (not the figures though). I think it deletes the instTerms too. So restoring it will not be that straightforward.

    I'd really advise against any methodology which relied on deleting something temporarily and then restoring, unless that objects is quite constrained - i.e. it's a known type of object which you can capture the info about an recreate using the appropriate API, rather than trying to make this work for any arbitrary kind of object.

    Regards,

    Andrew.

Reply
  • Andrew Beckett

    The simple answer to the original question is "no". The closest is hiUndo, as the previous poster explained.

    There's no dbCreateObject - you have to use the specific dbCreate.* function to recreate the object. Bear in mind that deleting some objects actually can delete multiple objects - for example, if you delete a net, it will delete any terminals on that net, plus any pins on those terminals (not the figures though). I think it deletes the instTerms too. So restoring it will not be that straightforward.

    I'd really advise against any methodology which relied on deleting something temporarily and then restoring, unless that objects is quite constrained - i.e. it's a known type of object which you can capture the info about an recreate using the appropriate API, rather than trying to make this work for any arbitrary kind of object.

    Regards,

    Andrew.

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