Saving data in document

Helper

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On 04/07/2005 at 01:56, xxxxxxxx wrote:

Thank you for the answer, Robert.
In my case, it will be a menu plug-in. I can always create a Null and store the required info as additional data in the Null container. But that is not as elegant
So, we both still would like to get an answer, right?

Rui Batista

Helper

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On 05/07/2005 at 06:10, xxxxxxxx wrote:

The document has a Base Container, right?
Can't we add data to the document Base Container, provided that the IDs are out of the range of the pre-coded IDs?
Has anyone done it before?

Rui Batista

Helper

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On 05/07/2005 at 08:45, xxxxxxxx wrote:

Yes.

Okay, the data will be stored in the document and most likely saved with it. If a user has your plugin, access to the data is available. If not, the data just sits there harmlessly - one hopes ;). But I'm not sure what happens when the document with the extra data is saved without the plugin. Does the data persist?

I'd do some experiments to verify that all of this is possible, then you are on your way!

Helper

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On 05/07/2005 at 10:38, xxxxxxxx wrote:

There is something else in regards to the IDs themselves. Deciding on valid and off-limits IDs may be something of a minefield. It may be the case that the IDs for the data in the BaseDocument, in order to remain unique, must be associated with unique IDs furnished by PluginCafe.

You have no control on whether or not your IDs will become invalid by their use by Maxon or other plugins otherwise.

Helper

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On 06/07/2005 at 02:38, xxxxxxxx wrote:

Thank you for your time and knowledge, Robert.
Lets say I have been providede with ID 123456789 for the plug-in. Would I be able to use the same number for the added ID to the document Base Container?
Oh, and what I want to add is a list of objects (actually, several lists of objects). Can I store an array in a single ID? Or do I need an ID for each element?!?

Rui Batista

Helper

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On 06/07/2005 at 07:32, xxxxxxxx wrote:

It is allowed to store plugin data in the documents BaseContainer, you must use a plugin ID and then store your data in a subcontainer or just use plugin IDs for each element (but a subcontainer is better if storing many values otherwise you are eating up lots of plugin IDs!).

Helper

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On 06/07/2005 at 07:43, xxxxxxxx wrote:

Thank you for your answer, David.
How can I create such a subcontainer?

Rui Batista

Helper

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On 06/07/2005 at 08:07, xxxxxxxx wrote:

Sorry, no idea about COFFEE. Its just a BaseContainer, in C++ its just SetContainer() and you pass in your BaseContainer with your settings.

Helper

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On 06/07/2005 at 09:25, xxxxxxxx wrote:

BaseContainers can't store arrays or lists, only single elements. You could try creating your own CustomDataType. Or, set one of the BaseContainer elements to the number of objects and add each element using IDs starting from a predetermined value. For example:

ID_MYCONTAINER_ID /Plugin ID/
ID_MYCONTAINER_COUNT 999 // LONG
ID_MYCONTAINER_START 1000 // First element ID

Then you'll loop inside your plugin (when available) to get the elements (after getting your subcontainer 'bc') :

  
LONG count = bc->GetData(ID_MYCONTAINER_COUNT);  
// Allocate a storage array if needed Here  
for(LONG x = 0; x < count; x++)  
{  
     array[x] = bc->GetData(ID_MYCONTAINER_START+i)  
}

And David has it correct. If you store in the top level container, you'll need unique IDs for each element. So store your BaseContainer in the top level BaseContainer of the BaseDocument and you only need a unique ID for your BaseContainer. The data that you store in your BaseContainer can have any IDs that you want.

It looks like you need to use SetData(id, data) to add the subcontainer to the BaseContainer.

Helper

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On 10/07/2005 at 01:29, xxxxxxxx wrote:

Storing a sub-container in C.O.F.F.E.E. is as simple as storing anything else. Just create a subbc = new(BaseContainer) and then use bc->SetData(ID, subbc) to set and bc->GetContainer() to retrieve it.

Helper

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On 11/07/2005 at 07:44, xxxxxxxx wrote:

We're using the BaseDocuments container to store data to the project, it is safe as long you write the data to IDs of the Plugin-Area, we use the IDs of our plugins to store data.
I think a customdatatype will not help you much, you will run into the same problem. If you want to store a list, the most simple approach is to make a container for it, define a LONG in which you store the number of entries of the list and a ID where the first list element starts in the container. Its easy to make even more complicated structures.

Helper

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On 11/07/2005 at 08:42, xxxxxxxx wrote:

Isn't that exactly what I detailed above?

Helper

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On 11/07/2005 at 10:04, xxxxxxxx wrote:

I just wanted to add that all you need to do is to create a subcontainer and store all your values within this one. Additionally use the first value to store the value count. Then you can simply store the subcontainer in the documents container with a plugin id from plugincafe...wait, i fell like repeating. 8-D

Helper

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On 25/08/2005 at 13:30, xxxxxxxx wrote:

Is there anybody with a codesnippet that simply works?

Counting the "you only have to" and "its that simple" in this thread is impressing.
Only within the sdk examples set-or getcontainer is not included and i am confused by the sdk-documentation:

"SetContainer(LONG id, const BaseContainer& s)
Sets the sub-container with the specified ID to s, or inserts it if it didnt exist."

Tried this but it did not work as expected.
any help?

Peter