Re: [MSEide-MSEgui-talk] tsequencelink incorrect value assignment
On Wednesday 20 March 2013 20:59:35 Julio Jiménez wrote: Sequence value is generated before tmsesqlquery.beforepost so if you cancel post a value in the sequence is lost (unassigned) AFAIK there can be unassigned values anyway if the transaction will be canceled later? I think the correct is to generate it after post and if the value is null (dataset field value) The sequence value is fetched in tdatlink.updatedata (dataevent deUpdateRecord): procedure tsequencedatalink.updatedata; begin inherited; if (field nil) and field.isnull and (dataset nil) and ((dataset.modified) or (fdscontroller nil) and fdscontroller.posting) then begin if field.datatype in [ftlargeint,ftfloat,ftcurrency,ftbcd] then begin field.aslargeint:= fownerlink.aslargeint; end else begin field.asinteger:= fownerlink.asinteger; end; end; end; The purpose is that the field values are complete in onbeforepost. If you don't want this behavior don't set tsequencelink.datafield and assign the field value in onbeforepost thefield.asinteger:= thesequencelink.asinteger. Another possibility is to genereate the key server-side by a trigger in applyupdate and to set providerflags1 pf1_refreshinsert/pf1_refreshupdate of the affected fields in order to automatically refresh the generated value. Martin -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar ___ mseide-msegui-talk mailing list mseide-msegui-talk@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mseide-msegui-talk
Re: [MSEide-MSEgui-talk] tsequencelink incorrect value assignment
I have no problem in generating sequence value and avoid this 'issue' (in fact I used sequences in mseide before the component was created). I was only pointing out what other database components like ZeosLib and IBX do. If the purpose is that the fileds values are complete in onbeforepost, then it's ok. Thanks. 2013/3/21 Martin Schreiber mse00...@gmail.com On Wednesday 20 March 2013 20:59:35 Julio Jiménez wrote: Sequence value is generated before tmsesqlquery.beforepost so if you cancel post a value in the sequence is lost (unassigned) AFAIK there can be unassigned values anyway if the transaction will be canceled later? I think the correct is to generate it after post and if the value is null (dataset field value) The sequence value is fetched in tdatlink.updatedata (dataevent deUpdateRecord): procedure tsequencedatalink.updatedata; begin inherited; if (field nil) and field.isnull and (dataset nil) and ((dataset.modified) or (fdscontroller nil) and fdscontroller.posting) then begin if field.datatype in [ftlargeint,ftfloat,ftcurrency,ftbcd] then begin field.aslargeint:= fownerlink.aslargeint; end else begin field.asinteger:= fownerlink.asinteger; end; end; end; The purpose is that the field values are complete in onbeforepost. If you don't want this behavior don't set tsequencelink.datafield and assign the field value in onbeforepost thefield.asinteger:= thesequencelink.asinteger. Another possibility is to genereate the key server-side by a trigger in applyupdate and to set providerflags1 pf1_refreshinsert/pf1_refreshupdate of the affected fields in order to automatically refresh the generated value. Martin -- Julio Jiménez Borreguero -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar___ mseide-msegui-talk mailing list mseide-msegui-talk@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mseide-msegui-talk
[MSEide-MSEgui-talk] tsequencelink incorrect value assignment
Sequence value is generated before tmsesqlquery.beforepost so if you cancel post a value in the sequence is lost (unassigned) I think the correct is to generate it after post and if the value is null (dataset field value) -- Julio Jiménez Borreguero -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar___ mseide-msegui-talk mailing list mseide-msegui-talk@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mseide-msegui-talk
