* Calling org babel to each row in a table
@ 2013-06-30 15:25 Joe Bogner
2013-06-30 23:33 ` Eric Schulte
0 siblings, 1 reply; 2+ messages in thread
From: Joe Bogner @ 2013-06-30 15:25 UTC (permalink / raw)
To: emacs-orgmode
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I often need to transform a table or list of values into a block of text.
For example, if I have a list of 4 files that I want to generate a SQL
script for.
After hunting around, this is the best I came up with:
#+name: table
| File |
| a |
| b |
| c |
| d |
#+name: template
#+begin_src org :results verbatim :var name="abc"
DROP TABLE $name
CREATE TABLE $name (name varchar(100))
BULK INSERT $name FROM '\\1.1.1.1\$name.txt' ...
#+end_src
#+name: apply-template
#+begin_src emacs-lisp :results silent :var table=()
(let (result-table)
(dolist (line (cdr table))
(setq result-table (cons (concat "#+call: template(\"" (car line)
"\") :results raw drawer") result-table)))
(mapconcat 'identity (nreverse result-table) "\n"))
#+end_src
#+call: apply-template(table) :results org :exports both
#+RESULTS: apply-template(table):results org :exports both
#+BEGIN_SRC org
#+END_SRC
Is there a more straightforward method to apply this type of
transformation? Ideally I would skip the emacs-lisp block and use some
syntax to apply a org-babel block for each row in a table.
It sounded similar to this:
http://thread.gmane.org/gmane.emacs.orgmode/69326/focus=69340*, *but that
didn't have a full example for me to build off of
Is there a more straightforward to accomplish this transformation?
Thanks,
Joe
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^ permalink raw reply [flat|nested] 2+ messages in thread* Re: Calling org babel to each row in a table
2013-06-30 15:25 Calling org babel to each row in a table Joe Bogner
@ 2013-06-30 23:33 ` Eric Schulte
0 siblings, 0 replies; 2+ messages in thread
From: Eric Schulte @ 2013-06-30 23:33 UTC (permalink / raw)
To: Joe Bogner; +Cc: emacs-orgmode
Joe Bogner <joebogner@gmail.com> writes:
> I often need to transform a table or list of values into a block of text.
> For example, if I have a list of 4 files that I want to generate a SQL
> script for.
>
> After hunting around, this is the best I came up with:
>
> #+name: table
> | File |
> | a |
> | b |
> | c |
> | d |
>
> #+name: template
> #+begin_src org :results verbatim :var name="abc"
> DROP TABLE $name
>
> CREATE TABLE $name (name varchar(100))
>
> BULK INSERT $name FROM '\\1.1.1.1\$name.txt' ...
> #+end_src
>
> #+name: apply-template
> #+begin_src emacs-lisp :results silent :var table=()
> (let (result-table)
> (dolist (line (cdr table))
> (setq result-table (cons (concat "#+call: template(\"" (car line)
> "\") :results raw drawer") result-table)))
> (mapconcat 'identity (nreverse result-table) "\n"))
> #+end_src
>
> #+call: apply-template(table) :results org :exports both
>
> #+RESULTS: apply-template(table):results org :exports both
> #+BEGIN_SRC org
> #+END_SRC
>
>
>
> Is there a more straightforward method to apply this type of
> transformation? Ideally I would skip the emacs-lisp block and use some
> syntax to apply a org-babel block for each row in a table.
>
>
> It sounded similar to this:
> http://thread.gmane.org/gmane.emacs.orgmode/69326/focus=69340*, *but that
> didn't have a full example for me to build off of
>
> Is there a more straightforward to accomplish this transformation?
>
Hi Joe,
There is no way to map a code block over the rows of a table. You could
use the `sbe' macro and a spreadsheet formula to call a code block on
multiple table cells, but the results would be inserted back into the
table.
| A | -->A<-- |
| B | -->B<-- |
| eric | -->eric<-- |
| schulte | -->schulte<-- |
#+TBLFM: $2='(sbe foo (in $$1))
#+name: foo
#+begin_src emacs-lisp :var in="foo"
(format "-->%s<--" in)
#+end_src
Possibly you could use the sbe macro to simplify the elisp code block in
your example.
Best,
>
> Thanks,
> Joe
--
Eric Schulte
http://cs.unm.edu/~eschulte
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