mORMot Open Source

dansot

Member

Registered: 2012-11-12

Posts: 25

translate SQL statement

How would I represent this in MORMot (SQLite3)?

UPDATE info SET b=true WHERE a=1;

Right now I'm doing a CreateAndFillPrepare and then looping through the result set and updating each record.  I'm just checking to see if there is a method I am missing.

ab

Administrator

From: France

Registered: 2010-06-21

Posts: 14,603

Website

Re: translate SQL statement

In fact, such a feature did exist at low-level (via EngineUpdateField abstract methods), but not at high-level

I have just added TSQLRest.UpdateField() overloaded methods to update a single field in a record.
See http://synopse.info/fossil/info/d2aaf10a69

You could now write either:

  Client.UpdateField(TSQLRecordInfo,'a',1,'b',true);       // with variant
  Client.UpdateField(TSQLRecordInfo,'a',[1],'b',[true]);  // with a parameter array

dansot

Member

Registered: 2012-11-12

Posts: 25

Re: translate SQL statement

Thanks!

ab

Administrator

From: France

Registered: 2010-06-21

Posts: 14,603

Website

Re: translate SQL statement

Note this method will work for SQL backends (SQLite3, Oracle, PostgreSQL, MSSQL, MySQL, and others) but also for in-memory TObjectList (without SQL) and also for MongoDB (with its proper syntax).