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Screen/Report - calculated/concat fields [message #5597]

Thu, 02 June 2016 11:55

htManager
Messages: 456
Registered: May 2014

Senior Member

Can I display two or more field values as 'calculated' fields like this in a report (and/or in a screen):

$structure['title'][] = array('text' => 'CONCAT(vereine_kuerzel, \' - \', mannschaften_id)',
'width' => 100,
'align' => 'left',
'x' => 45);

I tried it with the SQL_FROM statement with a LEFT JOIN in the script file too but with no success.

$sql_from = 'training_plan_kopf '
. 'LEFT JOIN orga_mannschaften ON ('
. 'training_plan_kopf.vereine_kuerzel = orga_mannschaften.vereine_kuerzel AND '
. 'training_plan_kopf.mannschaften_id = orga_mannschaften.mannschaften_id) '
. 'CONCAT(vereine_kuerzel, \' - \', mannschaften_id) AS verein_id ';

The SQL statement brings up an error. You see an ending ')' behind the WHERE clause but no beginning one.

Or is there a better way?

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Re: Screen/Report - calculated/concat fields [message #5598 is a reply to message #5597]

Fri, 03 June 2016 04:50

AJM
Messages: 2386
Registered: April 2006
Location: Surrey, UK

Senior Member

You can certainly use a function such as CONCAT() in a SELECT statement, but in your example you have placed it after the FROM clause instead of before, which produces an invalid query.

You could always combine two or more fields into a single field within your PHP code, such as in the _cm_post_getData() method.

Tony Marston
http://www.tonymarston.net
http://www.radicore.org

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