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Aurelius export: no indices
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Grobety Stephane View Drop Down
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Posts: 108 		Post Options Post Options   Quote Grobety Stephane Quote  Post ReplyReply Direct Link To This Post Topic: Aurelius export: no indices
    Posted: 28 Mar 2018 at 9:56am
Hello,

I have several indices defined in my data structure. Yet, the corresponding DBIndex decoration is missing from all classes exported as Aurelius entities.

Is there a parameter somewhere that governs this behavior ?
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Wagner R. Landgraf View Drop Down
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Posts: 2403 		Post Options Post Options   Quote Wagner R. Landgraf Quote  Post ReplyReply Direct Link To This Post Posted: 28 Mar 2018 at 2:29pm
No, DBIndex attribute is not exported by Data Modeler, yet.
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Grobety Stephane View Drop Down
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Posts: 108 		Post Options Post Options   Quote Grobety Stephane Quote  Post ReplyReply Direct Link To This Post Posted: 28 Mar 2018 at 3:29pm
Thank you for your answer. Any idea when it will be included ?
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Wagner R. Landgraf View Drop Down
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Posts: 2403 		Post Options Post Options   Quote Wagner R. Landgraf Quote  Post ReplyReply Direct Link To This Post Posted: 28 Mar 2018 at 8:18pm
We have it in our huge backlog, but no timeframe set yet. Maybe in a couple of months.
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Grobety Stephane View Drop Down
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Posts: 108 		Post Options Post Options   Quote Grobety Stephane Quote  Post ReplyReply Direct Link To This Post Posted: 02 Jul 2018 at 3:09pm
Hello,

would it be possible to have an update on the status of this feature ? 

We're moving ahead with our migration of a rather large BDE application (100+ tables) that makes heavy use of indices and creating them manually will be a rather long task: I don't want to spend weeks of work on that if the functionality will be readily available soon (plus, manually adding the index attributes makes it impossible to re-generate the entities).

Thanks
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Grobety Stephane View Drop Down
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Posts: 108 		Post Options Post Options   Quote Grobety Stephane Quote  Post ReplyReply Direct Link To This Post Posted: 06 Jul 2018 at 8:10am
Could I get an answer to my question, please ?
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Farias Anderson View Drop Down
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Posts: 25 		Post Options Post Options   Quote Farias Anderson Quote  Post ReplyReply Direct Link To This Post Posted: 06 Jul 2018 at 4:12pm
I guess you can use the Script tab to implement what you need:

procedure OnClassGenerated(Args: TClassGeneratedArgs);
begin
  { read Args.DBTable.Indexes and write your DBIndex attributes }
end;
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Grobety Stephane View Drop Down
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Posts: 108 		Post Options Post Options   Quote Grobety Stephane Quote  Post ReplyReply Direct Link To This Post Posted: 06 Jul 2018 at 4:55pm
That is an excellent idea! Thanks
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Wagner R. Landgraf View Drop Down
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Posts: 2403 		Post Options Post Options   Quote Wagner R. Landgraf Quote  Post ReplyReply Direct Link To This Post Posted: 09 Jul 2018 at 11:26pm
Indeed, I simply forgot that you could do that from customization script. That was actually the reason to implement the script: to allow users export more attribute and/or customize generated code, without the need to implement every single feature in Data Modeler.

You can use the following code in customization script to export DBIndex attributes from the existing indexes:

procedure OnClassGenerated(Args: TClassGeneratedArgs);
var                                                    
  I, J: Integer;
  Idx: TGDAOIndex;    
  Fields: string;         
  Attr: TCodeAttributeDeclaration;
begin                                             
  for I := 0 to Args.DBTable.Indexes.Count - 1 do
  begin                                               
    Idx := Args.DBTable.Indexes;
    Fields := '';
    for J := 0 to Idx.IFields.Count - 1 do          
    begin
      if Fields <> '' then Fields := Fields + ',';
      Fields := Fields + Idx.IFields[J].FieldName;
    end;
    Attr := Args.CodeType.AddAttribute('DBIndex');
    Attr.AddRawArgument('''' + Idx.IndexName + '''');
    Attr.AddRawArgument('''' + Fields + '''');
  end;
end;
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