Re: ob-sql dbconnection engine

[Andreas Gerler <baron@bundesbrandschatzamt.de>]

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Hi!

and a new patch with proper commit message.


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From 98c5f83ae289252610be8ce80452fad97f6433c7 Mon Sep 17 00:00:00 2001
From: Andreas Gerler <baron@bundesbrandschatzamt.de>
Date: Sat, 28 Jan 2023 14:49:02 +0100
Subject: [PATCH 2/2] lisp/ob-sql.el: sql-connection-alist engine

* ob-sql.el (org-babel-find-db-connection-param): with dbconnection use
sql-product for engine parameter.

Signed-off-by: Andreas Gerler <baron@bundesbrandschatzamt.de>
---
 lisp/ob-sql.el | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/lisp/ob-sql.el b/lisp/ob-sql.el
index f73e7003f..c6a192ae3 100644
--- a/lisp/ob-sql.el
+++ b/lisp/ob-sql.el
@@ -231,10 +231,14 @@ database connections."
                                   (:dbuser . sql-user)
                                   (:dbpassword . sql-password)
                                   (:dbinstance . sql-dbinstance)
-                                  (:database . sql-database)))
+                                  (:database . sql-database)
+                                  (:engine . sql-product)))
                   (mapped-name (cdr (assq name name-mapping))))
-             (cadr (assq mapped-name
-                         (cdr (assoc-string dbconnection sql-connection-alist t))))))))
+             (if (string-equal ":engine" name)
+                 (symbol-name (cadr (cadr (assq mapped-name
+                                   (cdr (assoc-string dbconnection sql-connection-alist t))))))
+               (cadr (assq mapped-name
+                           (cdr (assoc-string dbconnection sql-connection-alist t)))))))))
 
 (defun org-babel-execute:sql (body params)
   "Execute a block of Sql code with Babel.
@@ -247,7 +251,7 @@ This function is called by `org-babel-execute-src-block'."
          (dbpassword (org-babel-find-db-connection-param params :dbpassword))
          (dbinstance (org-babel-find-db-connection-param params :dbinstance))
          (database (org-babel-find-db-connection-param params :database))
-         (engine (cdr (assq :engine params)))
+         (engine  (org-babel-find-db-connection-param params :engine))
          (colnames-p (not (equal "no" (cdr (assq :colnames params)))))
          (in-file (org-babel-temp-file "sql-in-"))
          (out-file (or (cdr (assq :out-file params))
-- 
2.39.0


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> On 28. Jan 2023, at 13:57, Andreas Gerler <baron@bundesbrandschatzamt.de> wrote:
> 
> Hi!
> 
> without the patch your org source block has to look like:
> 
> #+begin_src sql :engine mysql :dbconnection mysqldb1
>  SELECT * FROM nodes;
> #+end_src
> 
> with that patch you can just type
> 
> #+begin_src sql :dbconnection mysqldb1
>  SELECT * FROM nodes;
> #+end_src
> 
> because your engine is mapped to sql-product in your sql-connection-alist:
> 
> (setq sql-connection-alist
>      '((mysqldb1 (sql-product 'mysql)
>                (sql-server "10.10.42.1")
>                (sql-user "dbadmin")
>                (sql-password "foo")
>                (sql-database "testdb"))))
> 
> 
>> On 27. Jan 2023, at 14:15, Ihor Radchenko <yantar92@posteo.net> wrote:
>> 
>> Andreas Gerler <baron@bundesbrandschatzamt.de> writes:
>> 
>>> as I am still learning more elisp it took me some try and error but I can use the sql-product now within dbconnection.
>>> Using :engine still works as well.
>>> Still wondering if there is a more elegant way for the if clause.
>> 
>> Thanks for the patch!
>> Could you please explain in more details what the patch does?
>> 
>> --
>> Ihor Radchenko // yantar92,
>> Org mode contributor,
>> Learn more about Org mode at <https://orgmode.org/>.
>> Support Org development at <https://liberapay.com/org-mode>,
>> or support my work at <https://liberapay.com/yantar92>
>> 
> 
> 
> 
> so long…
> 
> Andreas Gerler
> 
> —
> 
> http://www.bundesbrandschatzamt.de/~baron


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