Hi.Thanks Paul for your answerFor my first code I've followed this: https://stackoverflow.com/questions/4068084/how-to-find-an-identity-of-the-last-inserted-row-in-entity-frameworkand that seems not to apply to FB?I so I can insert ID without trigger,directly from my code,something like this:
myTableEnt newRec= new myTableEnt() { ID= GetNextSequenceValue(ref db, "SELECT NEXT VALUE FOR GEN_MYTABLE_ID FROM RDB$DATABASE") NAME='MYNAME', .... };
...public long GetNextSequenceValue(ref myEnt ctx, string sql) { var rawQuery = ctx.Database.SqlQuery<long>(sql); var task = rawQuery.SingleAsync(); long nextVal = task.Result; return nextVal; }
thanks
From: paul.mercea <pau...@al...>To: For users and developers of the Firebird .NET providers <fir...@li...>Cc: Mr. John <mr_...@ya...>Sent: Friday, August 25, 2017, 11:35:11 PM GMT+3Subject: Re: [Firebird-net-provider] EF - last inserted ID is 0
The trigger from you database has nothing to do with your c# code.You can use a stored procedure to insert data and returning latest id (also you can read current sequence value but you can have wrong value if other inserts happening).
Sent from my Samsung Galaxy smartphone.
-------- Original message --------From: "Mr. John via Firebird-net-provider" <fir...@li...> Date: 8/25/17 20:28 (GMT+02:00) To: "For Users and Developers of the Firebird .NET Providers" <fir...@li...> Cc: "Mr. John" <mr_...@ya...> Subject: [Firebird-net-provider] EF - last inserted ID is 0
HiI'm using FB 2.5,EF Firebird 5.9.1,Asp MVC 5 with VS 2017
on a table I have a trigger to generate ID:
CREATE OR ALTER TRIGGER TRIG_MYTABLE_BI FOR MYTABLE ACTIVE BEFORE INSERT POSITION 0 AS BEGIN IF ((NEW.ID IS NULL) OR (NEW.ID=0)) THEN NEW.ID=NEXT VALUE FOR GEN_MYTABLE_ID; END
in my code I insert data like this:
myTableEnt newRec= new myTableEnt() { NAME='MYNAME', .... };
db.myTableEnt.Add(newRec); db.SaveChanges(); return ToJson(new { msg = newRec.ID.ToString() });
newRec.ID is returned always 0,but in database value is generatedwhat I've done wrongthanks
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