Hi Massimo,

I'm simply recording in another table that an insert has been made in the 
reorder table.

Here's the full function:

def oncreatereorderhandler(form):
    myid = form.vars.id
    newreorderrow = db.reorder(myid)

    #now do something with newreorderrow
    db.trans.insert(ProductID=newreorderrow.uuid, TransactionType='New 
Reorder',
                    Quantity=form.vars.Quantity, Notes='Initial Stock', 
UserID=auth.user.uuid
                    ,TransactionTime=datetime.now())


Thanks for your help!


On Friday, June 13, 2014 12:53:09 PM UTC-4, Massimo Di Pierro wrote:
>
> What does "#now do something with newreorderrow" do? 
>
> On Thursday, 12 June 2014 14:12:45 UTC-5, Chris Farrar wrote:
>>
>> Hi,
>>
>> I'm struggling with a strange issue.
>>
>> I have a web2py application with a simple data model.  I have a table 
>> called "reorder".  The user is able to interact with "reorder" using a 
>> SQLFORM.grid.   I have implemented the oncreate call back.  My oncreate 
>> callback gets the id of the newly inserted reorder record then does 
>> something with it.
>>
>>
>> def oncreatereorderhandler(form):
>>     myid = form.vars.id
>>     newreorderrow = db.reorder(myid)
>>     #now do something with newreorderrow
>>
>>
>> Generally this works well.  form.vars.id correctly corresponds to the id 
>> of the newly inserted row and life is happy.  The problem occurs when I put 
>> a database trigger on the reorder table that fires after the insert. 
>>  Whenever this trigger is on the database the value of form.vars.id is 
>> nonsense.  The actual id of the inserted row is fine it's just that the 
>> value of form.vars.id in now way corresponds to it.  For example, after 
>> the trigger is added, the values of form.vars.id will be 4 for the very 
>> next insert.  For every insert after the value will increment by 3 (eg 4, 
>> 7, 10, 13, etc).  When I remove the trigger everything returns to normal.  
>>
>> How is form.vars.id populated and how would a DB trigger interfere?
>>
>> Here's the trigger and associated procedure.   It was generated by 
>> symmetricds.
>>
>> CREATE TRIGGER sym_on_i_for_rrdr_trggr_crp
>>   AFTER INSERT
>>   ON reorder
>>   FOR EACH ROW
>>   EXECUTE PROCEDURE fsym_on_i_for_rrdr_trggr_crp();
>>
>>
>> -- Function: fsym_on_i_for_rrdr_trggr_crp()
>>
>> -- DROP FUNCTION fsym_on_i_for_rrdr_trggr_crp();
>>
>> CREATE OR REPLACE FUNCTION fsym_on_i_for_rrdr_trggr_crp()
>>   RETURNS trigger AS
>> $BODY$                                                                   
>>                                                                             
>>  begin                                                                     
>>                                                                             
>>                                                    if 1=1 and 
>> "public".sym_triggers_disabled() = 0 then                                   
>>                                                                             
>>                       insert into "public".sym_data                         
>>                                                                             
>>                                                     (table_name, 
>> event_type, trigger_hist_id, row_data, channel_id, transaction_id, 
>> source_node_id, external_data, create_time)                                 
>>                                            values(                         
>>                                                                             
>>                                                                             
>>                  'reorder',                                                 
>>                                                                             
>>                                                      'I',                   
>>                                                                             
>>                                                                             
>>                         8,                                                 
>>                                                                             
>>                                                       
>>           case when new."uuid" is null then '' else '"' || 
>> replace(replace(cast(new."uuid" as varchar),$$\$$,$$\\$$),'"',$$\"$$) || 
>> '"' end||','||
>>           case when new."id" is null then '' else '"' || 
>> cast(cast(new."id" as numeric) as varchar) || '"' end||','||
>>           case when new."modified_on" is null then '' else '"' || 
>> to_char(new."modified_on", 'YYYY-MM-DD HH24:MI:SS.US') || '"' end||','||
>>           case when new."productid" is null then '' else '"' || 
>> replace(replace(cast(new."productid" as varchar),$$\$$,$$\\$$),'"',$$\"$$) 
>> || '"' end||','||
>>           case when new."reorderquantity" is null then '' else '"' || 
>> cast(cast(new."reorderquantity" as numeric) as varchar) || '"' end||','||
>>           case when new."receivedquantity" is null then '' else '"' || 
>> cast(cast(new."receivedquantity" as numeric) as varchar) || '"' end||','||
>>           case when new."reorderdate" is null then '' else '"' || 
>> to_char(new."reorderdate", 'YYYY-MM-DD HH24:MI:SS.US') || '"' end||','||
>>           case when new."expectedreceivedate" is null then '' else '"' || 
>> to_char(new."expectedreceivedate", 'YYYY-MM-DD HH24:MI:SS.US') || '"' 
>> end||','||
>>           case when new."vendorso" is null then '' else '"' || 
>> replace(replace(cast(new."vendorso" as varchar),$$\$$,$$\\$$),'"',$$\"$$) 
>> || '"' end||','||
>>           case when new."customerpo" is null then '' else '"' || 
>> replace(replace(cast(new."customerpo" as varchar),$$\$$,$$\\$$),'"',$$\"$$) 
>> || '"' end||','||
>>           case when new."edigenerated" is null then '' else '"' || 
>> replace(replace(cast(new."edigenerated" as 
>> varchar),$$\$$,$$\\$$),'"',$$\"$$) || '"' end||','||
>>           case when new."active" is null then '' else '"' || 
>> replace(replace(cast(new."active" as varchar),$$\$$,$$\\$$),'"',$$\"$$) || 
>> '"' end,                                                                   
>>                                                                             
>>                                              'sschannel',                   
>>                                                                             
>>                                                                             
>>            txid_current(),                                                 
>>                                                                             
>>                                                         
>> "public".sym_node_disabled(),                                               
>>                                                                             
>>                               null,                                         
>>                                                                             
>>                                                                 
>> CURRENT_TIMESTAMP                                                           
>>                                                                             
>>                                              );                             
>>                                                                             
>>                                                                             
>>               end if;                                                       
>>                                                                             
>>                                                                             
>>                                                                             
>>                                                                             
>>         return null;                                                       
>>                                                                             
>>                                                       end;                 
>>                                                                             
>>                                                                             
>>                           $BODY$
>>   LANGUAGE plpgsql VOLATILE
>>   COST 100;
>> ALTER FUNCTION fsym_on_i_for_rrdr_trggr_crp()
>>   OWNER TO tom;
>>
>>

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