[Dbix-class] Newbie from SQL to DBIx
Matthew Somerville
matthew at mysociety.org
Thu Mar 8 11:56:46 GMT 2018
On 8 March 2018 at 06:52, Andreas Dafferner
<andreas.dafferner at adw.uni-heidelberg.de> wrote:
> select distinct left (col, (length(col) - 9)) from table order by col
You could do this:
FixMyStreet::DB->resultset("Table")->search({}, {
columns => { col => \"left(col, length(col)-9)" },
distinct => 1,
order_by => "left(col, length(col)-9)" });
Run with DBIC_TRACE, the SQL for this is:
SELECT left(col, length(col)-9) FROM table me GROUP BY left(col,
length(col)-9) ORDER BY left(col, length(col)-9):
And the resultant column is available as ->col for each row.
ATB,
Matthew
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